„+ a ) NCHS consists of pages, copy I СЁ, seri o 57 “” HEADQUARTERS, DETACHMENT D 1100ТН USAF SPECIAL REPORTING GROUP Campbell Air Force Base Camp Campbell, Kentucky 7 April 1949 Security inspection Commanding General Sandia Base Albuquerque, New Mexico ар 1. Reference is made to secret letter, your headquarters, dated 1 April 1949, Subject; Security Inspection, 2. 8. Guard Orders have been amended directing that the elec- tric gate be closed between 1700 hours until 0700 hours the following day. be Locks have replaced the bolts in all inspection access gates in the outer fence. с. Inspection ports on both bridges are now provided with locks, de The final draft of our alert plan has been reviewed and will be published and distributed for study to operating personnel. It is desired to point out that the alert plan is incomplete. A stockpile custodian has not been assigned here; his part in the alert plan has been outlined only. Furthermore, since the llth Airborne Division is not in place yet, only temporary arrangements for defense have been made. Final form of the overall alert plan will be sub- mitted to your headquarters for approval as soon as conditions will allow. Tm the interim period, it is felt that the temporary alert plan we have prepared is adequate. A copy of this plen will be dis- patched to your headquarters in the near future» e. All jeep radios are now installed in jeeps. f. Although not entirely satisfactory, radio communication with the Camp Campbell Military Police has been in effect for some- time and was in effect at the time of the Security inspection. Per- manent arrangements for radio communication with Camp Campbell Military Police are delayed pending the arrival of radio frequency crystals that fit the Military Police net frequency» Short Title A^ /Ə > t=. 224 L | а - 5997 NND 58378 FAAJI Lid r Ung 7 April 1949 SUBJECT; Security Inspection 2. Cont'd. ge Pressure has been exerted to get the Post Engineers to keep the drainage system clear and to take measures to check the ero- sion. These efforts will be continued but little progress on erosion control can be expected until the rains diminish. Ditches have been filled, dirt moved and replaced, native grasses planted, but the rains return too soon and much of the effort invested is therefore wasted. Plans are prepared for an interim erosin control effort, and а study is being made to estimate the cost of resloping the cuts in order that the rainfall may be drained with less damaging results. Initial estimates run in the neighborhood of twenty thousand dollars ($20,000.00). 5. With the exception of halting the erosion, all deficiencies listed in the security inspection report have been cleared away. It is therefore requested that the monthly report of action taken re- quired by cited letter be discontinued. ZC 26-- RICHARD W KLINE Lt Col, USAF Commanding tle LLA =a- 2,24. Ju NND 58378 HEADQUARTERS SANDIA BASE Albuquerque, New Mexico AFSWP CLASSIFIED DOCUMENTS LIBRARY 1444 FILE NO. 222.5 SUBJECT, Д.а i Oo 20.04: | ; ICO SCHOOL OF MINES 4 SOCORRO, NEW MEXICO 10 Angust 1949 Dr. Lincoln LaPaz Institute of Meteoritics University of New Mexico Albuquerque, М. М. Dear Lincoln; I am inclosing two copies of the report you asked for, and hope that they serve their purpose. Wo have made a preliminary examination of the oighteon collections taken at nine locations on my. Monday-Tuesday trip, There was a large number of coppereboaring particles on one collection (R-104L) taken on Highway 84, seventeen miles north of Highway 66, and scattered occas= ional particles throughout the series. The collection taken at the same location immediately following НГ1041, shows practically no copper. А large part of the R=104L із of a granular material unfamiliar to us, and the copper indications originate principally in what are apparently aggregations of finely (one-mieron) granular material of overall sizes in the neighborhood of thirty microns. ‘Some copper partizles, hows ever, appear to be solid and opaque. The passage of two automobiles while this collection was being made is a complicating factor. It is hard to see how they micht have been a source of copper, however, unless it was a question of stirring up some from dust on the pavement, We intend to do some further chemical work with these collections, but I doubt if much new relevant information will be obtained. My tentative conclusion is that no widespread significant dispersion of copper bearing particles was present in tho atmosphere in the region covered at the time the collections were made. No definite statement is possible about the one heavy copper collection: it should be presumed to be of local origin until some evidence to the contrary is found. The route of the collecting trip included Pastura, Santa Rosa, junc- tion of Routes 66 and 34, end Las Vegas on Monday afternoon. On Tuesday morning it ineluded Las Vegas, Canoncito, Glorieta and Pecos, Yours very truly, Ш.О. Crozier woo *TW attachments (2) NND 58378 R/D=tw 8-10-49 AN ATTEMPT TO COLLECT AIRBORNE PMTICLES ASSOCIATED WITH THE FIREBALL OF JULY 24, 1949 By їо D, Crozier and Ben K, Seoly NEW MEXICO SCHOOL OF MINES METHOD A Fireball was reported to have passed over the general neighborhood of Socorro, New Mexico, at 8:26 peme, July 24, 1949, Impactment equipment, developed in connection w th the aerosol research project of the New Mexico School of Mines, was available, and it was decided to make systematic collections of airborne mater- Aal in the hope of obtaining material that could be associated with the fireball. Por the present report it is sufficient to state that the equipment processed air at the rate of about 34 liters per minute, the particles being separated from the air by impactment against an adhesive-coated plate in an air jet. Approximately ninety per cent of airborne particles with diameters greater than one micron are collected, Tho adhesive used on the colleeting plates (microscope slides) was a glycerin- gelatin mixture with an addition of rubeanic acid (dithiooxamide,) This reagent was used to enable identification of copper or copper compounds; 1% also enables identification of nickel and cobalt. After making the collections, the slides were covered with a Saran film, after which they were exposed to strong ammonia vapor for fifteen minutes to effect partial solution of any copper or copper oxide parti- cles. RESULTS The first collection was made at 10300 a. n., July 25, about thirteen and one» helf hours after the fireball was seen. The air was taken about twelve feet above ground level, on the campus of the School of Mines, The first run was for three min- utes, processing about 102 liters of air. Several large particles were found in it that save positive copper tests. In at least one of these the copper reaction was seen before the uon treatment, indicating the presence of at least a trace of a soluble copper compound. The sizes of particles seen in the first collections ranged up to over one hundred microns in the largest dimension: the largest particles gave the impression of being fragments of a somewhat fibrous material, with the smaller z аш £ “” = E n ММО 58378 © dimension of the order of twenty or thirty microns. There were no small particles, that is, no particles with a maximum dimension below 15 microns, р Page 2 . Following the first collection, additional collections were made, under simi» lar conditions, over a period of eight days. The accompanying table summarises the conditions and copper counts for all these collections, ine luding the first one described above. А number of the runs were for periods longer than three minutes, but the counts have, in these cases, been reduced to the threoeminute equivalent. One collection showing several large copper indications, taken July 25, is ommitted from tho table because it was damaged in course of a test for radioactivity by exposure of а nuelear track plate (with negative results) and a definite count Gould not be made, The counts are exhibited in three size classifications, and attention is directed to the fact that particles in the smallest size croup (1 to 15 microns) are practically absent from the carly collections, while in the later collections, particles in the largest (30 microns) and middle (15 to 30 microns) groups have become quite scarce, At the same time, the counts have become quite large in the smallest size group, SIGNIFICANCE ОҒ If it were possible to say that particles giving a copper test are generally тегу rare in collections near ground level in this locality, the above facts wuld be highly significant. It happens, however, that collections have becn made at Socorro over only a short period, and not much attention has been given to identi- fication of copper compounds, However, after the copper indications had been found in the present series of collections, some collections were found on file that had been made on plain glycerin=zelatin on July 14, 1949, These were covered with the Seren filu and rubeanic acid and ammonia were applied by diffusion through the fi lm, 4 few copper indications were found, almost all the particles being in the 30 micron size group, Some other collections were made early in July that will be examined for copper when they are freed from other tests. In addition, oecasional collections will be examined for copper in the future, and it may be possible eventually to add something to the information now presented, CONCLUSIONS REGARDING COPPER in view of the above facts, it seems very hazerdous to draw any definite con- clusion associating the copper-bearing particles collected with the fireball of July 24, There still is, however, a residuum of possiblity of such associations when 1% is considered that particles of the smallest size group did not appear in large numbers until some 35 hours after the passage of the fireball. @ = йыл py p= ка — ММО 58378 Counts o? Copper Particles in Collections at Socorro During Регіой July 25 to August 1, 1949 (Redused to Particles per 102 Liters of Air) Gopper Counts Wind? i = 15 15 ~ 30 Collec. Time Blapsed Direction Meron Micron Date Hour _ tins knots Range Range 13.5 NN 1 4 13.5 2 17.5 m 35.5 ж Page 3 Attention is called particularly to the large number of small particles in one of the 145-1/2-hour collections, The actual number in the collection was 140, for the five-minute rune Most of these were in the size range of two to five microns, and the principal difficulty in associating them wi th the fireball is that a fivo- micron particle cannot fall much more than 10,000 feet in 145,5 hours, These parti- eles could have come down from a greater height only if some downward motion had taken place in part of the air involved. It should be mentioned that collections were taken during the afternoon of July 27, at several points south and east of Socorro, the farthest being near Bingham, These collections contained particles giving copper indications, the particles being in the Same range of sizes as those collected in Socorro at about the same time. It is perhaps noteworthy that the copperebearing particles in all these collec- tions were of opaque material. ost of the copper minerals that have previously come to our attention in collections from the air have been colored material, blue, green, red, or yellow, COBALT AND N In the 2:00 рел, collection of July 26, three quite remarkable particles were found that gave very strong cobalt indications. The particles were apparently per- fect spheres (at least they were perfectly circular in cross section), twelve mic rons in diameter. The reaction with rubeanie acid, after ammonia treatment, pro- duced a dense yellow-tan halo, sixty microns in diameter, The color was not quite So clear es with pure cobalt: the appearance suggesting a hizhecobalt composition with some metal present, Such particles are quite unique in the experience of the presents, If these particles were of meteoritic origin they could, in the absence of vertical sir movement, have fallen a distance of the order of 20,000 feet in an interval of 41.5 hours. Two particles giving nickel indications were found, This is quite normal, how- ever, If anything, the number is smaller than might have been expected in material of surface origin» The collections were not given acid treatment: additional nickel indications might have been found if this had been done, ESTIOWN While the results of the present investigation should be regarded as negative or inconclusive, it is desired to call attention to the fact that a means is at hand that should make possihle a definite demonstration of the presence or absence of cope per particles associated with events of the July 24th type. Farticle collection equipment, operating on the same principle as that used in the present: investigation, and designed for airplane installation, is on hand and its successful operation has been demonstrated in numerous slichts. Provision e NND 58378 page 4 could easily be made for quickly mounting this equipment in en airplane capable of ascending above the 40,000-foot level, which could take off soon after an event of the July 24th kind, and fly a pattern "that would include with reasonable cortainty some of the material originating at the neteor trajectory. А quick approximate determination of the trajectory would be required, of course, and if winds aloft were of considerable strength it would be necessary to make due allowance for thom in planning the flights ADDED ON AUGUST 10, 1949: As this report was being finished, an attempt was made at an airplane coll following the event of August 6, The collecting equipment was installed in а | from Kirtland Field and on the afternoon of August 8, а flight was made whic! hoped micht intercept some of the meteoritie material, 1 Interval of 41 hours had passed before the take-off, and the maximum reached was 23,000 feet. L E attempt was made to include air that the trajectory, but distances of several iid. әй miles were Involved. ppor indications were obtained, but they seemed definitely to be associated material of surface origin. No nickel or cobalt indications were found, An alaber» ate study, which may require more upper air data tkan wa available, should be made before it is decided whether or not the flight did actually include air that should have borne particles from the meteor trajectory. August 17, 1949 TO: Colonel Doyle Rees FROM; Lincoln Laras SUBJECT: Anomalous Luminous Phenomena. Sixth Report(attempts to collect volatili- gation products from green fireballs) (1) In an earlier report it has been pointed out that in spite of air and ground searchs in early February along tho well determined carth-trace of the green fireball of 1949, January 30th no fragments of this fireball were recovered. There remained the possibility that this fireball had been so completely volatilized during flight that only fine dust from it filtered down thru the atmosphere, Since, for several reasons, it seemed more probable that such dust would consist chiefly of copper or a copper alloy rather than of the ferro- magnetic substances found for ordinary meteorites, the methods habitually employed by meteoriticists for the collection of "сови4е dust" (separation of the dust from the air by uso of electromagnets or permanent magnets) would not be appropri- ate for use in connection with tho green fireballs, It was therefore decided to enlist the aid of Dr. William Crozier, who was knowito have developed а novel impactment dust collector for use on tho Aerosol Project of the New Mexico School of Mines, (The writer had been closely associated, in 1943-44, with Dr. Crozier at New Mexico Proving Grounds while working on saboted and proximity fused shells and know that he had satisfactory clearance.) Dr, Crozier not only agreed to particie pate іп a ground-level search for dust possibly put down by the fireball of Jan чагу 30th, but made the valuable suggestion that dust collections be made on plane flights routed back ani forth at hich altitudes throuch the air beneath green fireball paths as soon as possible after fireball fall. In this manner сопфалі- nation of the dust collections by terrestrial particles would be reduced to a minimum, No immediate application was made of рг. Grozier*s dust collection techniques, in part because of the writer's return to full time academic work at the UMM on Жөзгілгу Sth and in part because of Dr. Crozier'’s other research ectivities and the interruptions in Research and Development Division work inci- dent to the A.E,C,*s taking over the Albuqugrque quarters of the Division. (2) When it was determined that the green iireball of July 24th had descended in the immediate vicinity of Socorro, it was decided to ask Dr. Crozier to attempt collections even though he end his staff were then engaged in the final stages о? moving from Albuquerque to their new quarters on the Campus of the New Mexico School of Mines, A long distance call to Dr, Crozier on July 26th brought the Welcome news that he had been alerted by an appeal for observations issued by the Institute of Meteoritics on the evening of July 24th and had already made dust collections on the &us at Socorro on the morning of July 25. These collections, to Dr. Crozier’s evident surprise, were found to contain not only the first copper particles he had found.in air dust collections but these particles were of unusually large size — up to 100 microns in maximum dimensions, On receipt of this exciting information, a party was dispatched from 17th District 0.5.1, Hdos, to confer with Dr. Crozier and to. make a field search for the fireball of July 24th, This party consisted of Major Charles L, Phillips (courteously made available for the trip by Colonel Harold A, Gunn, 2.0. of Kirtland Field) Мг. Paul Taft of the U.S. Weather Bureau in Albuquerque, 8/А Jack Boling and the undersigned. А conference with Dr. Crozier and Mr, Ben Seely was held on the School of Mines campus in Socorro between MES Ф 1 gy M OW lo — Ж L 10:00 = 12:00 А.М, on July 26th. At this conference it became apparent that Dr, Crozier was inclined to attribute the unusually large copper fragments collected on July 25 at 10:00 A.M, ("which because of their size could not have been blown very far by surface winds") to particles blown off the roof or out of the cutters of the Assaying Building on the Campus. In answer to a question from the writer, Dr, Crozier replied that he would consider this possibility ruled out if copper particles showed up in collections made in tho open country at considerable distances from tho Campus, It was therefore recomended that such collections be made and Dr, Crozier and ym, Seely rigged up a storage battery combination and small D.C. motor driven impactment collector which were loaded into the 0. 8. T. staff car and driven out through San Antonio, Carthage, and Bingham, New Mexico (this route passing, іп Mr, Taft's opinion, through the region where particles from. the fireball of July 24th would most probably have been carried by the very light winds prevailing in the region since the inci= dent.) Four of the collections made on this trip were examined on the evening of July 26th by Mr. Ben Seely and all were found to contain copper particles indistinguishable from those collected in Socorro at about the same time. (3) Full details on the methods of collection employed by Dr, Orogier and Mr. Seely and on later examinations of the dust particles collected after the green fireballs of both July 24th and August 6th are given in Dr, Orozior's report (R/D = tw, 8-10-49) copies of which are hereto appended, Dr, Crozier's tentative conclusion from study of the collections паде, not only in connection with the incident of July 24th,but also that of August 6th, is that “the results of the present investigation should be regarded as negative or inconclusive,” From analysis of his report (R/D - tw, 8-10-49) and from several phone conver- sations with Dr, Crozier, it is the writers belief that Dr, Crozier was led to the above conclusion by the following facts listed below in decreasing order of importance, md accompanied by critical comments: (5.1) The discovery by tests made on or about $ 2 of * a few во ndieations* in dust collected at Socorro on 14, 1949, i.e. ten days before the m fireball incident of 24th, (Dr. Crozier has informed the writer that the collection of July 14th was carefully wrapped up end could not have become contaminated by copped dust which blew in through the open An- dows of the R. D, W. Building at Socorro after the incident of July 24th. How ever, there remains the possibility mat an unobserved or unreported green Fire- ball oceurring in the Socorro neighborhood shortly before July 14th put down the copper dust found in the July 14th collection, To one familiar with the almost uninhabited country around Socorro má the fact that green firebalis as bright as the half moon occurring at times as favorable for observation as 7:30 — 8:30 P.M. have gone almost unreported, it seems quite likely that a green fireball that fell after midnicht or during the daytime or while most of the sky was overcast might go entirely unreported.) (3.2) The discrepancy between the computed and observed rates of descent of very fine copper particles, As Dr. Crozier notes, such discrepan- cies are understandable "if some downward motion had taken place in part of the air involved.” Precisely such downward motion occurred in the air near the real paths of the fireballs of July 24th and Aucust 6th for these falls were nearly vertical, Furthermore the best observations of the endpoints of these fireballs place that of July 24th at a hich* of 19-12 miles and that of August 6th at 5-6 miles, The downward direeted ballistic head wave therefore could very easily have carried Dr, Orozier's 145 hour particles to within 10,000 feet of the earth at GR pem the time of fall, Since we cannot as omplete stacnation of the air masses in the Socorro neighborhood for 145 hours, it must be supposed that such air motions as occurred were approximately compensating and resulted in the return of Dr, Crozier's tiny "five-nicron particles" to the Socorro neighborhood in approximately 145 hours. Only a detailed study of air mass motiors for the time interval involved can settle this point.) (3.3) The lone continued arance of © r particles (however, as Dr. Crozier emphasizes, smaller and smaller in size) in the Socorro collections. (Precisely such a decrease in particle size has repeatedly been observed in connection with dust collections believed to be of meteoritic origin and is attrib- uted to the slower and slower rate of descent of the particles as their average size decreases, Thus, L, Rudaux's results strongly indicate that particles from the Giacobinid shower of 1933, October 9, filtered down in smaller and smaller sizes for 100 hours or more. Furthermore, for the green fireballs of July 24th and August 6th, the nearly vertical real paths extended from altitudes of 100 miles or more down almost to ground level and therefore optimum conditions for long continued infall of dust particles were approached in these falls.) (3.4) Failure of the airplane collection of August Sth to detect aire borne copner particles definitely not of terrestrial origin. (However, the airplane collections were all made at great distances (hundreds of miles) from the Vaughn region in which the fireball of August 6th fell; and, as Dr, Crogier points out, at the moment it can not be determined “whether or not the flight did actually include air that should have borne particles from meteor trajectory." In this connection the results alluded to in paragraph 4, below, may be of considerable significance. ) (4) АФ the time the airplane collection of August 8th was planned the writer recommended not only that the flight traverse the area from Vaughn northward to Raton and men NW-ward into the Durango, Colorado region (a recommendation based on advice received from Мг. Paul Taft of the 0.3. Weather Bureau) but also that simultaneously a ground search with the portable impactmmt dust collecting equip- ment rigged up on July 27th be rum from Vaughn through Pastura to Santa Rosa, The latter part of this recommendation was followed by Dr. Crozier who reported on the results obtained in his letter to me under date of August 10, copies of which aro hereto attached, Dr. Crogior's letter makes clear that ground collec= tions in the subfinal regions of the fireballs of both August 6th and July 24th resulted in the detection of unusual aggregations of copper particles, Apparently the copper particle aggregate obtained in collection В ~ 1041, within the subfinal region of the August 6th fall was the only such aggregate found in Dr. Crozier*s lenghty ground search of August 8-9, It seems particularly significent to the writer that Dr. Crozier suspects that the copper dust found in this particular collection Rel may have been stirred up from the pavement on Highway 84 ---- a likely catcelnient surface for dust put down by the green fireball of August 6th, in view of the information given me by Mr, Taft in regard to the wind direction prevailing during the hours inmediately following this incident, (she In spite of the critical comments made in paragraphs 3 and 4 above, the writer has no quarrel with Dr. Crozier’s conclusion that the results so far obtained in the investigation of volatilization products possible put down by the green fireballs are negative or at best inconclusive, However, I do wish to stress most emphatically that if future more detailed work shows that the numer= ous copper particles found by Dr, Crozier and Mr, Seely are indeed floating down > FW cm каз, | EN 4 p. ү каш. кк” one Зы? BY ММО 583738 б” Bowe ا‎ U М am | from green fireballs, then the fireballs are not conventional meteorites. Copper is one of the rarest of the elements found in meteorites (See G.P. Merrill, Memoirs National Acad of Science, vol. 14 (1925), Table facing p. 273 and Harrison Brown, — of Geology, vol, 56 (March 1948, Table 1, p. 87.) In fact, I know of no case in which even the tiniest particle of copper has been reported in a dust collection supposedly of meteoritic orizin, In view of present concern in regard to the true nature of the green fireballs, nothing could exceed in importance attainment of a definite con^lusion in regard to the origin of the copper particles detected in the subfinal regions of the fireballs of July 24th and August 6th. (6) The writer therefore wishes to make the following reconmendati ons: (6.1) That arrangements be made for dust collections on airplane flights at altitudes of 40,000 fi, or more through the region of the atmosphere lying beneath the real paths of green fireballs as soon as possible after the occurrence of such fireball incidents. Such arrangements presuppose a well coordinated observing network permitting the speediest possible determination of the location of the real paths in the atmosphere, (Dr, Crozier end Mr, Seely have both agreed to cooperate in carrying out dust collection at the highest altitudes attainable. In Dr, Crozier's opinion, a B-36 or B-50 should be made available far such work.) (6,2) That ground=level dust collections be made along tho well deter- mined earth=trace of the green fireball of January 30th, using the portable impact- ment equipment already rigged up by Dr, Crozier and Мг. Seely and wed in the ground searches of July 27th and August 8-9th. If copper particles can be recovered along this earth-trace but do not appear in collections made 50 miles or so away from the trace, the result would be of much significance if not indeed decisive. p K. dum = ылып wy ü U (Сш NND 58378 4 2 L м 4 HEADQUARTERS. SANDIA BASE 1 ALBUQUERQUE. NEW MEXICO ДЇ зво SAM No REFER TO FILE No 5 SUBJECT: Board to Inspect Special Weapons Facilities at Strategic Air Command Stations Commanding General Strategic Air Command Offutt Air Force Base Omaha, Nebraska 1. Reference is made to Top Secret letter, your Headquarters, subject: ' "Special Weapons Training Facilities at Strategic Air Command Stations," dated 29 November 1949, Short Title: B-3000, which proposed an inspection tour of Strategic Air Command stations to determine adequacy of station plans for Special Weapons training facilities and recommend a priority and time schedule for Special Weapons Unit assignment to Strategic Air Command stations. 2. This Headquarters concurs in the basic objectives of the proposed board and its general plan of action. Capt. Barnes will represent the Plans and Operations Division of this Headquarters and Lt. Col. Olson, Commanding Officer of the 515th Aviation Squadron, will represent the 8460th Special Weapons Group. It is not possible at this time to comply with your suggestion that the 8460th Special Weapons Group be represented by the Commanding Officer of the Special Weapons Unit scheduled for assignment to the station being inspected. 3. It is recommended that the work of this board be supplemented by a similar board, to visit the station con- cerned about thirty (30) days prior to movement of a Special Weapons Unit to that station. This second board could then verify the rate of progress of facilities preparation and the adequacy of the plans at that time, and solve many of the administrative problems inherent in the transfer of RIPPL S4 Board to Inspect Special Weapons Facilities Subj: at Strategic Air Command Stations any unit to another command and station. It is suggested that this second board be empowered to recommend readjust- ment of movement schedule as circumstances indicate. FOR THE COMMANDI NG OFFICER: p / Z р g Ą AA Же / D. H. GUINN ы LCDR USK Executive Of Distribution: lać?a - addressee co R со со LO а 2 2 «ЧЕРЕН ш LY j B/L from Sandia Base to SAC, dtd 5 Dec 49, subj: "Board to Inspect Special Weapons Facilities at SAC Stations SAC 353 (5 Dec 49) 15% Ind DO2C ATEGIC AIR COMMAND, Offutt Air Force Base, Omaha, Nebraska Commanding General, Sandia Base, Post Office Box 5100, Albuquerque, lew lexico 1. This headquarters concurs, in general, with basic communica- tion, 2. Reference paragraphs l and 2, basic communication, inspection board has completed inspections. 3. Reference paragraph 3, basie communication, this headquarters is directing the Eighth and Fifteenth Air Forces to designate personnel from units concerned to inspect aviation squadron facilities immediately upon receipt of notification from this headquarters, Notification will be in the form of an information copy of Strategic Air Command request for movement of aviation squadrons. Your headquarters will receive a copy of subject requests, Inspection will be completed no later than fifteen (15) days after receipt of notification. Your command will be requested to furnish personnel for inspection teams. FOR THE COMMANDING GENERAL: CEL os mnn l Inci Cy of ltr & i J. B. MONTGOMERY ° | Brigadier General, USAF be Director of Operations NND 58378 NND 58378 HEADQUARTERS STRATEGIC AIR COMMAND OFFUTT AIR FORCE BASE OMAHA, NEBRASKA ТОП о > с 11 8. upon your request. NND 58378 DEPARTMENT OF THE AIR FORCE HEADQUARTERS UNITED STATES AIR FORCE WASHINGTON THE INSPECTOR GENERAL USAF 17TH DISTRICT OFFICE OF SPECIAL INVESTIGATIONS KIRTLAND AIR FORCE BASE, NEW MEXICO DR/ms (24-8)-28 25 May 1950 Summary of Observations of Aerial Fhenomena in the New Mexico Area, December 1948 - May 1950 Brigadier General Joseph F, Carroll Director of Special Investigations Headquarters USAF Washington 25, D. C, le In a liaison meeting with other military ánd government intel- ligence and investigative agencies in December 1948, it was determined that the frequency of unexplained aerial phenomena in the New Mexico area was Such that an organized plan of reporting these observations should be undertaken, The organization and physical location of units of this Dis- trict were most suitable for collecting these data, therefore, since December 1948, this District has assumed the responsibility for collect- ing and reporting basic information with respect to aerial phenomena occurring in this general area, These reports have been distributed to the Air Materiel Command, USAF, in accordence with Air Intelligence Requirements No, 4, and to other interested military &nd government agencies, 2, There is attached, as a part of this summary, & compilation of aerial phenomena sightings that have occurred mostly in the New Mexico area and have been reported by this District Office subsequent to December 1948, This compilation of sightings is not & complete record of all reported observations, but includes only those in which sufficient information was available to justify their inclusion, The observers of these phenomena include scientists, Special Agents of the Office of Special Investigations (IG) USAF, airline pilots, military pilots, Los Alamos Security Inspectors, military personnel, and many other persons of various occupations whose reliability is not questioned, This com- pilation sets forth the most important characteristics with respect to each observation and evaluates each sighting into one of three classifi- cations, (1) green fireball phenomenon, (2) dise or variation, and (3) probably meteoric. 5. There is also attached an analysis of the green fireball occurrences in this area made by Dr, Lincoln LaPaz, Dr, LaPaz is the 41 NW 91526 File No: (24-8)-28 Subj: Summary of Observations of Aerial Phenomena in the New Mexico Area, December 1948 - Hay 1950 25 May 1950 Director of the Institute of Meteoritics and Head of the Department of Mathematics and Astronomy at the University of New Moxico, Не was Re= search Mathematician at the New Mexico Proving Grounds under ah OSRD appointment in 1943 and 1944, and Technical Director of the Operations’ Analysis Section, Headquarters, Second Air Force, 1944-45, Since 1948, Dr. LaPaz has served on a voluntary basis as consultant for this Dis- trict in connection with the green fireball investigations, 4. On 17 February 1949 and again on 14 October 1949, conferences were held at Los Alamos, New Mexico, for the purpose of discussing the green fireball phenomena, Representatives of the following organizations were present at these meetings: Fourth Army, Armed Forces Special Wea pons Project, University of New Mexico, Federal Bureau of Investigation, U. S, Atomic Energy Commission, University of California, U, 5, Air Force Scientific Advisory Board, Geophysical Research Division Air Materiel Command USAF, and the Office of Special Investigations (IG) USAF, A logical explanation was not proffered with respect to the origin of the green fireballs, It was, howover, generally concluded that the phenom mena existed and that they should be studied scientifically until these occurrences have been satisfactorily explained. Further, that the continued occurrence of unexplained phenomena of this nature in the vicinity of sensitivo installations is cause for concern. 5. The Geophysical Rescarch Division, Air Matericl Command, Cambridge, Massachusetts, has recently let a contract to Land-Air, Ince, Holloman AFB, Alamogordo, New Mexico, for a limited scientific study of green fireballs, The results of this scientific approach to the problem will undoubtedly be of great value in determining tho origin of these phenomena. 6, This summary of observations of aerial phenomena has been prepared for the purpose of re-emphasizing and reiterating the fact that phenomena have continuously occurred in the New Mexico skies during the past 18 months and are continuing to occur, and, secondly, that these phenomena are occurring in the vicinity of sensitive mili- tary and government installations, 4 Incls 1. Summary of Sightings 2, Photo of Sighting No, 175 w/comments 3, Ltr fr Dr, LaPaz to Lt Col Rees, dtd 23 May 50 4, Graph indicating maximums NW 91526 File No: (24-8)-28 Subj: Summary of Observations of Aerial Fhenomena in the New Mexico Area, December 1948 - May 1950 25 May 1950 DISTRIBUTION : cys, Director of Special Investigations, Headquarters USAF н y = B, Ohe, АВР: Director of- Technical 1 cy, CG, Special Weapons Command, Kirtland AFB, New Mexico 1 cy, CG, Armed Services Special Weapons Project, Sandia Base, New Mexico, АТТЫ: J-2 ; varters, Fourth—Army-;—+.—Sem—Hevston;—Texet- ATI-+—AG—of-S5-G-2— 1 cy, CO, Holloman AFB, New Mexico SS IS Canbridge—Research-Laboratories;—Cambridge; Mass, 1 cy, Director, Security Division, U. 8, Atomic Energy Commission, Los Alamos, New Mexico, ATIN: Mr. B. O, Wells 1 cy, Federal Bureau of Investigation, El Paso, Texas 1 cy, Federal Bureau of Investigation, Albuquerque, New Mexico т 4 2 NW 91526 —— O PE ке... EE w ЕЕЕ A, H с i (1) — — —— h— — — © i loded Extingui- shed қ езде 1 44-22 жы ыды d лылы ықы i ч r : i S — — Statio at time — — —— punoc — + bakle :-eteor Fro xni- nun ted : reflec- ; с н = p Cu ŁY доза е ы ec 2640 8 A uo reddy 5% 412 | "bouncing ilouod by POW I i H H i } v1buquer- ue, New North P A a ————— — 1 Lon ua Í 22 | VS i i i о TR i i і — T — —————Á — — i H Н ex Eval “айса о EU e га абе ) Rapid r of speed ^ LO SSO BALL h د ب اسم ic Ke] N LO AZ o = z і Paracol urve í i i i i | Ci L э > -oserver currence <=. 2 * 5207 cain or gil bserva 4 * ir 'Tlasu w/moise е tomder | | Bonk Ver 2 : i Ba B i roke into Š i A Í i i i i i 4 small С £ 9. ements © bon 1209 to the ір Нез |1-1/2jlione |B | Baske | Hig i Disappeared ihe ht horizon - i | | | і x | descend-; | blui | I | | : i jiountain i i р : i i i Í f ; Blower thaniDisappeared i i H i i : ір s le Aa led from lin vers: | | i secs | i i ifalling iw/greenish En | i | i ! | | i flash i Descend- i Descondi ———— canes i6 Jan 0310 IR. los Alemos, E и: 8 ' i Horizontal | Brilli-| | | : iNew lle I from ob-i | ant i | | | | | | i i i green 82 H H | Paso, INT to SE 130 - 5° {Horizontal jGreen |Texas | | | |50 Jan 1754 | + Trel 38 Jh = © oving islowly smaller ‘lighted ADD | Unk iAlamorordo, РЇЇ bo i Ang Gentle App App iUnk | | i 1800 1200 jc h w Mexico 1 : idescent i i т TT * "bel “VOT vits iToxas ifull moon NW 91526 Tian y Lunar "Log ini I ontal | Licht. i 122 | MORON i | Very fast {Disappeared | | | i behind trees | H | Disappcared i г i E i i i i In m А i Camp Hood, | «ror rom i i blu ; ics | j Nono; Oblong 2! т loxas NW 91526 1 org; irrenco © of Observ li 2 ct :lenner 1202 askotballi i iabove i ¡whit ihorizon . ibisappoarcd iDropood | RE ibehind trees ¡vertically ground Bc Deedee e А : T NW 91526 patie АОН PUMIATV o а Lot i lo U Ubserver aren DD С^ 45 Arist JOSErva iDisintegra- ited атай жал SU | Intense} ery jk 'llipuji Slower thar ТЕ i itwin-en- igined plane i i ! 010511 Unk smoke trail NW 91526 8! ec5io rv erve GE ілу tion Wer 05 are LONE 13791 2378 A 1 raveled in le ile i zone Lemon i isappeared i imever iof nroute j^ ito Canton 3 i; y Е : | F 55 Я RZE : "aded out 45 ilucumcari, JE to} | : | n 223 ; ЕЁ i > 6; i aded out in Кө 4 i i ; i Н i i ina qi : distance E ZW ме | ү”) e : H : i : Б Н above Montoya, E to ¥ ‘About 759 ге IR 110 Мое | Long 6 Length iFaded out in Ne паз i faharoa : i i TH i inni ; h : idis ance New iiexico i IACOVE i i tH i ix Y 1 LS LAR | | | SIN TZT WOS A ummary d: гі опсе P Ох. n `Y £ > w eur "ner ‚рраго ç о о O + Oc iDisappeared behind moe imtein —— : i 3 = Dione 3 been | secs : E + Cout 200 yds ifr to D cU p LL... Wr. М! А NW 91526 Summary of 5 es of Unknown Aerial Phenomena, мылтығынан S 3 servacion enu П `, ude .orizonta sappear= 1 rain or Occurrence Direction D Apparent i General ATB Area of "m Ob Appar i IST 4 iSE to NW 1209 above i inorizon i ( ray= iish iDisappeared ibehind jobstacle i 2 ir saff ПМ Ie i i Green- i Í i ish | blue i 4-} iother iDisappeared | behind i mountains lum- ; inum i | i Tremendous | Disappeared Apr 110551: | due to i distance m Та і i | | | i H i H I i I fell i SA ne 4 i Round | Very iVery fast | Disappeared Lend i ES | i i i i small well above from view above i iv yo EE | i i WESA L Z H i i i i i i ispee i i 50,000! H i i i i 1 ic Ж i sound ‚ет, few Mexico —Á— — — —M ex i f Servers T [e n um *Reliability lanner of Disappear- of Ob *kEyaluation Observation to Vertical Duration of Area of Occurrence Apparent Direction of Flight Horizontal iTucson, Е Е | i i Cig m 2-29 1300 = 600 ‘Faded from ‘Arizona ior SW i i i i T2 i imph iview | | | | i | I i fusace iblock | | ishape | | i2 seosilione i i2 seconds Ment out i iR? o] i2 degrees | 3 C 1 Very fast iup to 11,000 mph — i Los Alamos, i New Mexico | i 3 H oH D 1 b. i | i Los Alamos, iS tof i i Thi i t ione | Large E RR c. i i i i i Н i 13 New Mexico i i i isec | ¡similar 1orizon | | i | | | ito size i i i i iof air- iplane ‘landing рт s i | i i i | i 12125- | |5 secjjlone | i 2126-base- jS iwhite | 118%; | i iball dia- 12140- | | i | mond red i I | i lights. | | | | | i2140- | | | | islightly | larger | than i i | i ifirebox | i i i ilights ————————————— ———————— — — i of Unknown Aerial Phenomena, 17th District OSI (cont ility ht ion 2 ＋ > 1 U Vertical ervation Evaluat E irection umber of b *Relia Horizontal жж Ocourrence of Fli I to nner of Disappear Т Obs Me: N D iCamp Hood, Ш end M App 1200" terna- None |50 Hon |5 dollar Very slow aded from Texas i dropping | ing | mms | i idiminish- | i * H : ac H Н i i ng to ishort quer ber 1842 26 150 above Was going | i iN 2 iDisappeared horizon dorm at an | | i i isize of irat iwest of angle of i i fa | jfull moon {spec Jemez Mis. | E 2 i iCamp Hood, iCovered 15 iDimmed and |Texas i | i I | i imils in went out | | | | | SAS | e] |40 mins, S Covered 20 iDimmed and iwent out — v | i i i i | і | i i un SZ 110 mils iDimned end iin 9 mts iwent ouf rizonta l ,Motionless fthen rapid | i imi i ili in di ‚бо faster ol imb at | i | Y imetel than jet { i i i i i i i NW 91526 UOTĄENTEAF жж ед ooug -JXeoddest Jo хәлле 1 Vanish AT SAUL BANE Ts IT NAHE UPC ———Ó LIS LER — en H i psed: Quo.redda H H T meter с\ LC H i i i di 10 sec опе Dm en ure green { NW 91526 19914494 04 Т=10071л0] БЕР е USTIA JO UOT2.991TG quereddy ғ A^ 8 о — - 2 © H o fa > n с! а S P t- — ^ & ° © a Ф Ph erial P ico əouəx.moooc 20 төлү [?40uen own À lox m Unia lev 1 M ы т iAlamogordo, iNew iloxico PN Tucson, iArizona вләлләвао Јо KĄTITABTTOU* { | 1 i i | i | { Р ines o то JOqUMA ight S Summery of ooue -Jeeddestq Jo aouug h as я | Suc i turning off 12,000 mph | jor faster jin ifiashlight f 1 irz |slow ә2т TA que. c dd size o i i Н iplane aped |зта1] a, [Circle Appeared i i i i | } } чотделләвао uo e N LO a= o z z SP gi i — ——ͤoi—— al өрттү quo av d V ver bic i horizon qu2f TA Jo UOT499JI( quo. r dd al Phenomena, d Svu Imd Jo eoly tt,] known Aer iSeligman, ikrizona L ы дәлләвао 20 AT tn аж U U 2010} 1630; 77 29 Jun 30 Jun Summary of Sightings of Unknown Aerial Fhenomena, га! 1 ervatio: *Reliabilit ion "ht + G 5 t i server K. 38 f uration of Observers Ob S Occurrence Direc of Fli Apparent Altitude Manner of ріѕарргаг- | Killeen BN i i White i 4 ЕЕ jUnab le to Ға " 2% i i Nm : 5 i em testima i Base, Texas} jabove i tw/tinb | i i i L P mor izon i mj. | | EI | S to N 300 | 2 pi 11 ab Mone ! ‘Faded out | Lilleen, i у joU i FFF i qx i | i texas i iabove | idomin- | 2 | 1 be | | | ihorizon | | i i i [avi is zl. 1 i LO 1 u : Ж | i Initial- one 1: 3 times | Poe | ily blue i 2 i isize even- horizon ! turning Í | | jing star | | i docs dec c du E i | i i У CAE | i ira | ра азы сед Jul] 2135) 1 IR | Camp Hood, | SI (Climbed in | Bh es |2 = [Mone [Like | В „25 вес | | tarè of about 159 i | i i i i i іт ; 17 i Guar iStraight | Predom- 8: I N Round Even ing ‘Very fast {Gradually Juli 220 E [ak] | faded = i ES GET t = 3-3 i i Ifa i А5 i | lexe |ab flight los-j inately | jw/teil {star or : i Н Н | white : } i planet | w/blue | i tint | i r дан а EG ы n СЕ NW 91526 ehting i 17th District OSI (cont) Ë Summary of Si tion f bservat ility ial lorizontal to Vertical uration of isappear- rea of Occurrence nce Rel Direction Altitude Apparent of Flight ñ Ë Cruces, | | lui | | | | | {Digg ani Disappeared Mexico i ! i i i i ifalling | ibehind H H H H H : 33 | T Ез in 2 Р Н i A p 2.22 [ | SA Cruces, Е to W 15028" to Curve going Reddish Les 14 Round App 6" in | Disappeared idiameter i gradually Mexico 19040" ‘up then fell | i iabove in almost : i | | | i horizon ‘vertical i i i i i idirection mogordo, iVertical 12920" to Straight ight Hone Round i$ size i ‘Exploded Mexico } 17035" ivertical hit i i Н ithen pieces | iabove iflicht idied out ihorizon i 1 И ——.— ä mogordo, 1204" фо | Whi | i ПТопе i Large as ‘Disappeared i i i i i : i i i T 1 1 xic i 11297" ivertica i i i i i jauto spot- | jbehind 1 i i i i H i T i i4 . ` labove | | i flight at | jhuilding ihorizon | i i | i arm's | i i i i i i length i * ioi res есін j Rou wice size Extremely Disappeared | Alamogordo, {St | jStraigh Extr |pisapp iNew Mexico | i iflight app fy i i i | 1orma l fast - "E moun- | i | 1200 verti- (re i i i twice as j bain i ical dec- itrai i i i i fast as i iline | | | | ifalling | i | E istar ! ; isses т) 4 NW 91526 Summary of Sighting Р Unk Phenomena, 5: Pare 17 a 1 > Horizontal TI Duration o Observation Apparent Constant . White | il sec None Round App small- Similar to islight i(bluish) | i | ier then falling | ¡clenched istar fist i RE BR TSN RMSE AM i i H i i i i i à Я is i ж x i 55 1 RC RPK SES iAlbuquerque, jDescend- 159 Descending Green one None R i | 10% in 1 |) Heu Mexico jing to above ito earth I i id i H ibulb jsocs at 2 car bh horizon ivertically i i ise i i i miles White Sands, | straight Obso i | И one md Hal Slightly isappeared iNew Mexico. | jabore jline to ivo | | | iof finger- faster than behind sand і i : 1orizon iearth | | i | inai ordinary Alemogordo, 1500 iLong slow iNew Moxico | iabove icurve to i i ihorizon 10 Aug 10010; 2 nk ik IE W = 130° angle | [Yes | 4 опе | Ho | | Sudden ! i i i | iB Texas i iheaded i i | i i i i Idisappearancq i i | i i | i i i waded ідоли iSimi- | lar toi i comet : NW 91526 tis i10 Aug i { { 97 110 Aug i i } i i 98 10 A i i H i o 110 Aug 100|10 Aug 05511 і 1205511 2207 2220 i i g 1204011 1210011 21001 tude parent General Area of Occurrence A Direction of Flight Apparent Alti jC amp Hood, Texas i = iCamp Hood, | Texas above | i ihorizon jabove ihorizon Кп iKilleen Base, Texas i i ihorizon H i | КЕЛЕ ! | j going up 400 - 700 i above 31 1500 - 45° iLevel flight iLevel flight Orange f uox: white & iuntil dis- appearance NW 91526 servation у 2 Ot Round Large w/tail (flare | i ‘Rocket 120 mm, i itracer fammo e Е Т қ j lead size | i isappear- nce іс | iGreater Burned out 1 1 ispeed than — EAZA {ҮТ iVery great isimilar to ifalling | Great speed] lent out | ‘like а light e*Evaluation Summary of Sightings of Unimown Aerial Phenomena, 17th n of uratio Observation Ф N ri of Flight Jlorizontal to Vertical *x*kByaluati p a 0 & $ e. [er < 2 Аааа 11 General Occurrence Apparent Direction jof Observer Area of ic i | : А | M | РЕ | Camp Hood, i9 to N | iLevel Th iYes | 25 Ove. Size ol 300 mph or Texas i i | i ing faster H р 1 ! ARN t ч š ۴ i 1 г е ы. { Hood, iN to ` j8,000! iStraigh i Ligh’ |fes j 2 ae Round ju ger Burned up and 102 10 Aug |2240 1 Unk Camp | idisintograU ted | o i i i | iTexas i more {flight withired di- i кое { р 105 m Aug; 2050 Sov Unk Camp Hood, IN + Generally | i Faster than|Went out | |2045] i Texas i bove ia level i | secs | ili | iany plane | Like a i | : i 10rizon ifl i cnt i i i i 1 KS i iobserved i | light H i i H 1 I H i i { i j i 1 i i i } Sudden dis- ` leirelo | i lappea rance i i i i * 1 i H i | put illeen Due Win Base, Texas jarc i i i orizon | i ! i | resem- | iw/asc ent i l i i ibling | i descent i | i i | signal idescrib= | | i i flare ! ling arc | i i i i i i i i i | | NW 91526 Summary of Sightings of Unknown Aerial Observers . *Reliability General Arca of Occurrence il funk (Killeen iB "Tac Base, texas i 107 20 Aug 2150 2 |Douglas, i i i iArizona i 108121 Aug 21155 Nogales, | 121501 i {Arizona i i H i NE, 109126 Aug ;1545j1 i ! i i illonthan AFB i : : i by. iArizona rection i а 129 — 17th District OSI (cont) lorizontal o Vertical ration of ` i y longi istreak of i i Flame | | i У EAS DRAŻ ES | Z iAppeared i10 ~ 15° teddishifes | cg Hone Round Larger thani 1259 Dis= off range | i iVenus i i i к ZM | i i i ;&ppeared ivertical i 18,000! - Flat none |6 = lOiNone|Round About size 110,000! trajectory i |зесв | ito ob- lof single | | i | | | ilong jengine i jlike jairplane iin- i i jverted | isaucer i i k- i i А i j None i10 None afer App size 110 times i secs iof volley speed of j i i i Е w levelito ear i ijet planes 900 at. isurface thazy | i i itri- inch when icolor | i I ‘апт observed i ; | iwi lat Z r. Armer of Disappœar- i Disappeared i iDisappeared iim distance iDiseppeared iin space *Evaluation Summary of Sightings of Unknown Aerial Phenomena, 17th District OSI (con "ht o Direction umber of Observers of Eii General Area of Occurrence Apparent Apparent Altitude Horizontal to Vertical *Eyalustion Course Duration of I : i | | i iLos Alamos, Almost 1909 over haost iBright i I i ; iNew lexico istrairht ioverhead istraicht i oreg H H i : 5 i IiBSUTELlENU reen | | | i ifall | | i i i i ah fd | bot ba | | | | | i | i e E Lo FF | Yellow | É e 3129 | iBurst 6 ар- i I (еу! lexico | pu i jred i ise | basebe | ipeared to : | x i isintegrete | _ i San 250! i i Noa * [> "R aes d A | 4 i l | ° RADZA b (8 ies MS А jHorizonval Orange RE None Ba! Larger than Dimmed then | | | Neu Hexic | | i jse i ishape falling jairplane ¦ disappeared | i i i i istar islover thani completely ifalling 56 i. i i i In ! i i і i isandia Base, ИТ to 5 i i iDark Hione | ЕП md -1512е of i i Unknown iNew Mexico | | 2 ! iyellow | isec i | ibaseball | I i i H H i i H i i ЖЕ : 1 70 | i ; £ ү Tucson, p 001 IGrayishiNone {2 mts None i2 to 5 ft aded from Ari i | i i je i riew Arizona tasca | i — $ ‘About size lof softball isecs. i i іас 500 удз, ! Sandia Base, F š ! Traveling iNew Mexico | i itangent to | jearth iSame rate ias shoci- DEM LI ol QUE A Ou ß NSA: 1 уе General Area of Occurrence Direction of Flight Apparent Disappear- ance 194 i | 27 Sepi0300i 1 ‘Unk {Sandia Base, 8E to NW | iTreveling Bright Hone iN i 1450 ir | Brightened | i | ; ew lexico | above fin a lere i i i ias perime- jse i then went ihorizon ward earth | i i i | ite ence | | out i H $ H H H H ; X 2 i i idistance iof about i200 yds. ———— . — iSandia Base, I 1209 [Made a gem [Dark Les iConie. iLooked iNew Mexico | above itle arc blu | | se | iicle ilike a | ‘horizon jtoward i | i i iw/tail |sky | iearth | i i | itwice jrocket i 1155 iSandia Base, | 14! ¡Moving ne | oc | iRou isi i i Burnt out із M : Я Ға { i i { 3 i iNew Mexico iabove itangent to ‘саг lz t H H i А i i | f i . i > Sandia i | iYellow | None; iNone | 1200 = 300 iNew Mexi | jorange | i i I ilarger thanimph i i Н = H H : 2 š i i i i i i ishooting Went up & { 222 ZE sam у i Disappeared : . ` i behind hills 135 i i i | oe > | SE jilescalero, + i i iDescended | | iNonejé ne Round Big ball | ia iNew Mexico | iabev iin-slight NW 91526 — Sightings of Unknown Aerial Phenomena, 17th District OSI (cont) Observer SOLVOTA. А Horizontal to Vertical #General Occurrence Apparent Direction of Flight Apparent Altitude uration of Observation isappear- **Eyaluati Hi t | Area of іы ‘Moving iDisappeared islowly ibehind a H fy. i ihill 0 i i 118001 Unk jMescalero, | 1180 j 1845 | | iNew Moxico | iabove I i i i i thorizon tq о са i i Alamogordo, iE to W i iStrairht ә > | i o iNew Mexico | i i angular i i descent Sos PODAC i i i | i i Н i i i { i i H +T es 1180011 ‘Unk jAlamogordo, i : tci Gre I j None | ;Size of f i i Шет lexico I i i i f Albuquerque, |B Г | | Curved des- iNew Mexico | i i cent ap- | i i | proaching i i Í vertical FJ i Wagon i i Horiz | None: 94. 2 i | "env : i i i H i 14 | 71 iof met p | il i Mound, New | i i ! is i i j in diame- jof meteor 85 | { i brio gh i Los. H i ver i — — т i 4 i. E | i š in. e * i Í ++ Es : 225245546 i Unk Albuquerque, NE to STi At tail endjBrilli-.j Hone; 10 none Tear | | | Seemed 50 illew Mexico | of ‘its iant | isecs } drop | j burn out i i i 2 Н { i i ! i i i ! course it green i i i i i | | e Н i : i 1 i 1 i ! i Í arched over | 3. —————————— — —— — — Summary of Sightings of Unknown Aerial Phenomena, Apparent £ Ё Size *Reliability ipparent Observers of Observers General Occurrence Direction Apparent Altitude Course Horizontal to Vertical im or Duration of Observation Disappear- Tr ? £ i i | Б : i i 5 I I 12120] 1 | lbuquerque, | "ht 559 i iYellow | None d iHa po Sandiej (1) | | | ew llexico erti jabove i it i i i | iir ilountains | ы, — RE OM К J ——— r |—S"Ó H H | — ! са i | CEA ; — L —äꝶʒäͤ— ᷣ L... 10 Oct; 0406 i1 i Los Alamos, 8E NE 3,0001 Parallel n Т i liexico above o surface iian! i i i i ibe slow | i iobserva- jof earth d i i i i i i i H { i mn E 3 E — x |10 Oct 0107 1 funk iSandia Base, i i iBlui Les 11: Hone Round iSize о: iS Loy Died ovt { 14 are x H i 1 i i i ASI а Н Н i iNew Mexico | above i igreen | E i ifi t i I : inorizon { — MY d. — 1 H H H 110 Oot! 010711 [Unk Sandia В ТЕ | Executed !бгееп- | i iNew Mexico 4 i idives lish i i i i ihorizon | iblue i i i i iw/red } le i a l 55 i | i | i i i 13 131 1 i | J- i ДЕ j”aded out н> ——.— H u oO i 1 i H ت مهوم چ‎ pi — E | ae | | Ж ‚155 10 Oot) 0107] h i Unk Sendia Base, NE |45 i iNone | Чеп: xico | above i i Ihorizon KAS а CNA кы y u eae A E Rete UEFA ЕЗИ РИО 55 H — нна TT — Appeared 'aneuvered iLight moving фо | iup & down igreen p * angl- j | iturned ing 511514 orange i; Ii H i X u A ма... T irom eoue -reoddestq 20 aeuuepq Went beyond | range ° р aded f | Burned out 1 i peod que.reddy 1,000 mph —— — T i ы Ф Ж u 92TS quezeddy in diam 50 = 100! jin diame’ 2 d = — — itoun te ne i ЛЛ 11 UOTIA9AJ9Sq0 JO uora4ean — — — LT ) m 195 © N LO + = о = z I (co Ө onta l 19914494 04 TeqUuozTAOoH esJno5 Smooth arc Joriz а! pn t Vi quo.redd y ii Tth District O | | | 1 lappeare 500! > JUSTI JO UOI4909JTq que reddy peared ^ £ ordo, } BDUBJJINODQ Jo вәлү Теләчән Шехісо Т Roswell, | i iArizona OE рі lew iAlamor STOATES qO Jo Катттаеттәң»= k i Unk s of Unknown Aerial Phenomena, SJoAJeSqo o z U i t H i 11115 12 Oct 11115 Summary of Sighting | 136 112 Oct Unknown Aerial Phenomena, 17th District OSI (cont) of ation Observers valu о a pparent orizontal to Vertical lenner + ТА. * E i Occurrence k Direction A тї 14 Oct | 2021 2 i Albuquerque, i | i iNew lexico | | iorange | Los Alamos, iS to N i i ont- iNew lexico | i i green & | | i i silver °. | i | i 24 i | | 141 | | | i i i 22 a ü 1 Oct 2 213011 | i H i i | |22 бо% |0228 Oct 0220] iStationary ibut disap- i jpeared with | speed of i Alemos, iDi | i 2 ob- lexico ipeare | | ijects i ibluish ¡ercon —— df zz — аа Alamos, iVertical Mexico i Summary of Sightings of Unknown Aerial Phenomena, 17th District OSI Observers Direction gh Observers rea of Occurrence of Fli Horizontal to Vertical General of i JT 18 Y | Los Alamos, New Mexico i : i i i E i i a Nov 2000 ah iL „E to! i15? - 10? Dowmard I i i i i i : 1109 from ‘the hori- zontal. 27 Nov #1600 i Unk {М sh, Vertical Les Vertical i i T . i ins i Е i liexico 1 itha idescent i i i i i i i — — Unk ins low, Arizona i lbuquerquo, E to W 13 ` iSloping | Blue- | Few liexico i i re idoscont iwhite | 152 27 Nov 1174911 i | Socorro, i 1109 -409 Are I i i i f Hen PACH jabove i ; ihorizon NW 91526 in or Train Trail Observation m None {1 sec ; None i i i } -------4-------- 4 | None à Roma | pparent 3ize A Manner of Disapvear~ 0 — 4 secs len= ito cover 20° f horizon | _ i ? i poż Pencil era- 5 j.lent out iser at li r then on then i i E . iarm's T jout again i i Н ‘Quite large} ‘Slower than! Faded out | imeteor je | Summary of Sighting {5 Dec |193 119 É of Unknown Aerial Phenomena, ê ame xico Carrizozo, Шеп Mexico iTularosa, Heu Hered Farmington, Apparent Direction of Flight IE ¡Dropping vertical- | ily i 7th District OSI (cont) Apparent Altitude Horizontal to Vertical la | Green ifringe lof i orange In an arc idownward b = Шеаг1у ihorizontal 1409 iabove 1 | iBlue ic iw/yel- H $3 ilowish ired i toward tail iSmooth are idownward i H | i iVertically {down H NW 91526 or Duration Observation nb Appare nei iCircu- Son“ ilar llarg zer than We enus „ Mone Streak {Appeared [of i1 ight — —Ó— iNonejChar- ired ipara- | chute ior icargo ilittle longs |longer than | length of i lead pencil: | (А7 pear- 12 Disa i IDisappeared ibshind i building | oaza m pct near ularosa, lew Mexico o titude *Roliability pservation **kEvaluation:: RI Observers of Observers ; 'oncral Area of Occurrence Direction of Flight Horizontal Irain or Duration of Manner of Jisappeare Trail G Apparent А ñ, » i s i i Н i Н i H iAlamogordo, Stati i ihi i9 mts iNoneiCircu-i = times iObject took w Mexico {ary i | jamber | | | ilar i Н ігеа i igreen ded from Lew Moved app. arr 1159 to.20° 1 From E to enus N during 45 mins it wes ob= | | | | | | | iDescending |Yellow-iYes | | É [Same as cup Compa Disappeared i iish | i ibe 16! indidisse behind mt. iw ! I ; ieter at je b france iarm's iP ig i ; iCorona, iNew liexico i H i H i i | | „„ 80 409! Horizontal Incen- fes |None {Oval | : | \э1варрөагей ` : above i ides- i i Ў i luith i | | oe oe ihorizon | cent i I i : ; lercen NW 91526 (1) і — Ó— in sity tinued n 3 1 I lua l ly 1 rad. i hind aded out Luaino орре horizon ——9————— nenne iBe 1 i — —— ksi z wor same eztg quoreddy pared out Round ii іт ohort dish} ( cont) iD ii | © N LO c= 5 о Е < al ly wp ` 24 ding ASCE * u TEOTĄHCĄ oq trict 051 1 Horizon Gh L О ртт i SPNĄTĄTV quo. r dd 12. mena, QU8TTA JO Uo OO їчәлеаа+ Pheno V 1 bu * eria 05, BDUSJANIOQ JO eely Tv. cou A "m n А Y 1 ille, пом ocrsej os Ala Scullv L “5 of Unknow | i i — — tine + i LO tme ZA я H S e г — f. 1 i 1 es I if 167 —ů —U——— — — — — — * oou -Jeoddesrt jo JOUUE; aly 4 acer led out sud Fad ; from view Fag ir" c jeu ru of jotaviona K or A npe i portion of I Pes ие iper Gar i ) round {Со UOTĄBAAOSQqQ 20 UoTĄ eng NW 91526 Тзэта дол O4 T93.u0z2 TIO asanoy әрпітату que eddy 448TTA JO UOTĄDGATQT m МҮ o 42 o oct ы р a + = - 42 [ча c ^ g = o E о У о O ` założ ATH x Str OPNTT IY quoseddy 17th Dis nomena, Y i цот40әлта quoredd+ PZ 12 3 JJC TTT 100 8DUOAJNOOQ jo волу Teiousn om сап LALA 1 mown Aerial Pho os, Un SIOAIOSGQ JO KĄTTTĄCTTSU* е Unk |Los Al ings oj = 4 1511 Sight 2 с r i24 Feb 11340 bi i i i i i i i i i i i i Summary of 1177 s Feb огоо 1 R t i17 i i Е | i i | | | 4 ! | 2 l i | = — i10 1 of Sightings of Unknown Obscrvors *Reliability of Observers General Area of Occurrence | Los Alamos, New Mexico 5 Febi 121151 {Unk i i i iNew Mexico i i H pen Acts қатесі сомы iDavil, New i Mexico Н L—— 1 Өле HERBE, . AA. H 1185 2 t Feb | 1416 1 iR los Alamos, iNew Mexico Albuquerque, Aerial Phenomena, 17th District i Apparent Direction нт i Heading i toward ground t Toward S OSI (cont) Horizontal to Vertical iConsid- iAlumi- i 1 i i ierable ! inum altitude; i 809 - 1350 | above ‘horizon App. 20° ‘Almost iabove ivertical ihorizon | il to 3 miles at 1300 Above NW 91526 of on 1 L Train or iratio iYes ito ints iNonejd secs} 2 га IN one i iSpher- ical Ш one ivircu- T Па one | Н Round fone {Oblong 10 - i H 1 i peed + Disappear- ilApparent ance From very slow to Disappeared behind mountain i (Went below |horizon *Evalustion < P AE : — Y T -E————---. | à) lare г peared ge o sun nto Disappeared Disap | Ë % | speed jpisme 8 - Round hone | ! xm 2 t E | ел = : Ei | ——— 1 — A Y ' і | d hr NW 91526 609 + ч % iStraicht твоталәд 04 1824М02т.02 955005 а әразтату чәлеасү iat fron qu Ig Јо Uor4ooJtq т ge queszeddy raveled p 11950 tico әопәлтаооо Jo Bely T BIS чәр xico М ife 8 о — H 2 с 4 о "га н P n «pl A е > e r ^ $ я Ф Е о a Ф A [em і с “г ы Ф < 2 8 В ew 1 » Los Alamo AM Ше i New SI9A16SqQ) JO Жалттавттәнж SI8AJOSSQQ £ ЕЕЕ Sightings o . 25 Feb 1545 J — REZ nary of S t (cont) h Distric 4-1 u Summary of Sightings of Unknown Aerial Phenomena, 17 ij UOTĄENTEAG — س‎ а | { 1 | e EE à | aoe ji -ameddesTqii i peared ared from view lig isap isappe L fall to Gradua у earth han Appeared to Like + Ó — — pesds| чөлү! | ——[ Moderate aster than [Discontinued convention- observation aster la ; la t| | JE al aircraft iconvention= jal airoraf т 1 ! i | 1 ! ! | | | | } ize of . si ifull moon Шекті --4 CR ZABIERA SSE! à , SETAE e l ptmog | | — uoTąeajesqni 2 j | E Jo uot Zeng | E 2 8088. o 8 ! + + ! ' Oe ið = Tone: one ы: „ 1 i i} ! / + u Brich lumin- tin foil 'alumi= num ellon iy Е [a] —8 Теоталәд ло TB4UOZT AOI əs mop ieir axis & maneu- i t ' Skyward ab Bright 09 ‚тегей up 6 ret 600 Turned on ‘down 4-1 101 2 ‚© 50 miles | i | i i i i 3 | | ePNĄTĄTY qu dy orizon t dis- tance of! Over 20,000! h ia i t i + i U ! i | ! i ! | ' 1 | i t —— —— —f— — App 2709 N to NE i Toward i earth ; NE I | ғ------ i ! H Н 1 i i i i 1 ico eouednoo i 20 золу! Texeue» | B вләлләвао jo} :lamos, lexico tr re M BUT А Tew ‘Farmington, ‘New Mexico Los Alamos, iNew Mexico ‘New Los b i H | i Unk 'Farmington, SO SE ANON KASA а ROPEK А — | | — —— —ꝛ— — — —ä—äF BA — — “8281.5540 | | | q 10; о - 8 — چ‎ A — | | BB RE | r |100 | т МӘ, ләшү! 11 Ë 191 | | | | i | T ( x | | E Ч 5 Ге — 4 03 пенни (2) isappeare th ppeared to г uere Discontinued fi la À £ ä Gradua Му t] all to загса ra] 1 Faster than ster than iconvention= | i | | | ! } f i Ө TE — wa 11/16" E 52 —--+ И РН ROE EI [2 | 4 al aircraft Moderate Fa jal aircral in E "ing pong e" z Size of ifull moon ball held ‘held at Oval ob- — MÀ — —— — — — ÀÀ — i а — Ее i one ! i uorqsoazosqol Jo i | | | I | ht g banged None | 1 Reddish; Î I жэ p a o o — ilig jorange "foll гот І i 05 i | | { “á TEET | > ' I 1 % sht с o Теэтздел ло Тззаозтаон əs mop ISkyward at Bright itheir axis {flight Turned on '& maneu- 'Strai ' down i — — — ——— M VV += ome | :50 miles = ebd — — Distrie 4-1 n u priq pq ly querteddy ios asl cM orizon dis- tance of! ibove — u |h a 1309 a= OU 2700 About i H | ; i N to NE i Toward i earth | NE D + ! à ‘ ‘ ' i eoueanoog i | Jo вәл Vi 1 Tet edn | F w Mexico Mexico iNew 11 w Mexico olloman pig ;Farmington, ‘Hew Mexico Los Alamos, “Ме } | — — — > | saeazesag 40 | Аалтттавттәнж| 3424455490 LAS печер —— IRR Unk 'Farmington, | ' t ! | | } | 5 F -4--------------4----- -——-- ; Unk 10i -- еен — enne — | : | | | als Summary of oe of Unknown Aerial Phenomena, 17 191 16 Mar 1100 2) цотзептелтжжі — 1 ( i i | + i В | 1 4 | | | ared sared c vision Gradually PRSS, from range Disappeared iDisappearod [From range P lof vision iDisa 01 | } | ү | ! | air-i ias fast jet! ircraft same 500 - same u craft p 700 mph ht + u je 1. u u cessive + ° Ex to A 1 Í as ou je jo 4 DES = À About Ка — Ab ist p i Arm! ze Of 8 len- th ar 5 ch si han a > % | | | z [^ Smaller dime at at H A w Alen i lens = e Round [Size of e TEE Nor — * i i i H 1 mt one | | | x 1 | i | | ii ло ителү. t r hady |silvc PRZ Brirh ; 1 я б ы © NW 91526 ju TEOTIA оз | Tequozraor jj os O N O p g n b ^ EE т lu Ltd JA E sana гч cj 45 N. о ИИ imotion up i6 down i Horizon i i i i i i 17th District 000! 00 Zi-za orizon orizon quozeddy i A i ^4 ——— ihorizon 140,000- |60 i409 = 5 | above i H j above 2 x НЫ i il ы x із с { о henomen to SE uoTąosaTq | quoreddy || T t m 15 } Sandia Base, iN * NI chan lox ic o ico ооцоллпооо | Jo волу! паза Мех e ioa ev T Kirtland : : 1 i 1 i : | i i 819415840 Jo zoqumy!! © | e i i гі : i A — 1 t MÀ m Ko) SER i ! Summary of Sightings of Unknown Aerial 1 i i i Q i са : a | оз —— —— —-$. — — t > adually nt out iGr iwen H 1 1 f sight bje lash of rilliant white light iBurned ou І b Y i H i i i i i i | i secs 309 azimuth i iconvontion- [оѓ О fal aircraft (Faster than} iT remendous i noter - Est. 9! in idi г 3 o "cl . 81 ы i Z sh 0 Round | | H пе Roug Пу Cylin- | i Fone | None 1 = | —— ZA il 115-30 on - — — bor iwith xtere Bright lo ыы - ACR i (cont) iBlue t iorange in NW 91526 С о ZA o a ч г-і a para- cnt to ict OSI Tequoz AO esamog Manuevercd Jup ithe earth 1161 W I i | iLine tan ito side up & down | | i п. | | | k | bovo 2,0001 iappare- „.ąboriza i i i ATTA 30| цот40292т(# T nomena, 17th Distr š: 1 l i i i | | i ico oouoJJnooo Jo волу [?3ouorn “r л. New ға e Sandia Base, SE Now Me Los Alamos, Ë iNew ilioxico Mexico ‘Kirtland m |АРВ, [Топ ——— ji дол ЕН i : i i i 1 EA 2. M LL htings of Unlmovm Aerial Phe e big Di Summary of Sighting No, 175 Photograph of Unknown Aerial Phenomena taken at Datil, New Mexico by Cpl Lertis E, Stanfield, Holloman Air Force Base, New iiexico on 24 and 25 Feb 1950, An analysis of the above photograph was made by Dr, Lincoln LaPaz, Head of the Institute of ileteoritics, University of New Mexico, Albuquerque, New Mexico, who reached the following con- clusions: a. The angular diameter of the perfectly round luminous object Stanfield observed was approx- imately 1/4 of a degree, b, The angular velocity of the object in the sky was greater than half a degree per minute, Dr, LaPaz stated that on the basis of the results (a) and (b) above, the object seen by Stanfield was not the moon (for the angular diameter is too small), it was not Venus or any other planet (for the angular diameter was too large), and it was not a bright fixed star slightly out of focus (for the observed rate of motion is double that due to the diurnal rotation of the earth), NW 91526__ THE UNIVERSITY OF NEW MEXICO ALBUQUERQUE INSTITUTE OF METEORITICS To: Lt. Colonel Doyle Rees, Commanding Officer 17th District, O. S. I. From: Lincoln LaPaz, Director Institute of Meteoritics Subject: Anomalous Luminous Phenomena (Seventh Report) 1, Tn the secomd report of this series, dated 1948, December 20, the writer listed ten significant differences between the bright green horizon- tally-moving fireballs observed in the interval 1948, December 5-20, and typical meteors. These differences were the following: (1) The horizontal nature of the paths of most of the December fireballs is most unusual. Genuine meteors are rarely observed to move in horizontal paths. (2) Again the very low height of the December fireball discussed in section 2 above sets it off in sharp contrast from the зүлсіліе meteors for which heights of the order of 40 or more miles are n< mally observed. (3) The velocity determined for the fireball of December 12 is much less than the velocities determined from typical meteors (and yet is considerably greater than the speeds of the V-2 Rockets or jet planes or of conventional flares), (4) In the case of meteorites that penetrate to as low levels as that determined for the fireball of December 12, the observed lu- minous phenomena are always accompanied by very violent noises, No noises whatever have been observed in connection with the various December fireballs so far investigated, (Note added on 1950, May Possible exceptions to the noiselessness of green fireballs are incidents of 1949, January 30, and 1949, December 449 (5) Genuine meteors normally show remarkable variations in brightness, beginning as fine thin hair lines, which are scarcely visible to the observer, and then brightening up to flash out near the end of their paths. In the case of the December fireballs most of the observers have reported that the green balls appeare instantly at their full brightness, UINI АЛ Бмл _NW 91526 Pa Phenomena. - To: Subj: Lt, Colonel Anomalous Doyle Rees Luminous -enui balls, płota show that ome in from the north half of the sky. anomalous well normally ug show a curio none of these fireballs, such 5 mentioned Quadrantid sho Liugust near the time 55 all fell This relationship might ind: balls less conspicvous causing considerable meteoric ivity. onni г, zee sai den г ; Wes of in t! ‘rr © ac commun i the De meteors, ізег of (8) As noted in groen color repor te observed in the case peculiar color seems salts in the blowpipe the wave lene г 1 А «5218R. a for most А af th of (9) The duration estimates of botwe for the green fireballs are considerably 045 seconds) for the ordinary visual duration estimates invariably ro meteorite fall (5 to 30 scconds -.4- ^ Dor tod or г, o no0 154 Uil p pronounced. ereeni Gum produce „ezbronoly near LieCullourh - о еп c fireballs сос CB u ^re e of tendency sn ror exam > maximum the ts observation 570412 ог o! end longcr has & train warpiy with La 81 о © vii ге 1 ditional observa accepted as balona though this number EOD AE Summary, Spor bed now ava NW 91526 siderable downward To: Lt, Colonel Doyle Rees - Pace 3 Subj: Anomalous Luminous Phenomena (Seventh Report) to move horizontally. However, a strictly vertical infall is also very rarely observed in the case of genuine meteor falls, 3. An analysis just completed of the time fireballs so far observed permits us t d &n 11th differences given in paragraph 1 above. The graph of local time which accompanies the present report shows З frequency of sighting of green fireballs (occurring at approxima 2030) coincides in time with neither the frequency maximum for meteors (occurring at approximately 0300) nor the frequency maximum for meteorite falls (occurring at approximately 1600). 4, Inspection of the graph referred to in paregreph 3 also will show that most of the green fireballs have been ghted in a time inter- val extending from about 5 p.m. to 11 p.m. 1 This might be even more pronounced if it were poss sible to secondary maximum, around 2 a.m, (MST), all ordinary been mistakenly identified as green fireballs, that tion has occurred is strongly suggested by the near coinciden of the secondary maximum of the green fireballs and the well early morning maximum of the ordinary meteors. 5. Some significance may attach to the fact thai interval alluded to in paragraph 4 extends from about 7 pem, in the Ural region of the USSR, Since missiles moving with ve ities of the order of those found for the green fireballs for which real path determinations have been possible would travel from the southern Urals % New Mexico in less than 15 minutes, a possible interpretation of the concentration of sightings referred to in paragraph 4 is that the green fireballs result from guided missiles олиб р а from bases in the Urals in the morning hours before cloudiness due to convection or blinding afternoon dust storms can interfere with noneradar tracking, such as has been used by the Optical Trajectory Section at White Sands Proving Ground. 6, There is also a pronounccd concentration of green fireball incidents on the four days, Friday, Saturday, Sunday, M y, almost all of the most widely observed incidents having occurred on Saturday or Sunday. 7. It is а curious and fairly well-established fact that there has been a distinct decline in the numbor of green fireball sightings during the last two months, within which the numbcr of so-called "fly- img saucer" incidents in this region has attained an all-time high. 8. Although I have recently received from Dr, Joseph Kaplan of Scientific Advisory Board a letter containing the statement "Frankly, don't know of any U, S, experiments that would result in the aP PORTEIRO of these unconventional objects, and ег does Von Karmen", I still NW 91526 Lt, Colonel Doyle Rees - Page 4 Anomalous Luminous Phenomena (Seventh consider the most probable explanation of the gre fireballs to be she one given in the first of the three peracre are quoted from my letter of 1950, February 20, to Dr. F. Ë Viyekoff, Chief Atmos- pheric Physics Laboratory, Base Directorate for Geophysical Research. The last two paragraphs quoted below well summarize my recommendations concerning the green fireball problem: "As a preliminary to setting down the project recommends tions which you requested, I have very carefully re iewed all available fireball data (observers' reports, transit me real paths, eo.) сочегіпт incidents from those to the extraordinary incident of February 7, 1950, under intensive investigation for the last two weeks, As a re of this comprehensive review, particularly as it relates to the cident of February 7, 1950, I feel compelled to what different terms concerning my ovn part in i project than I had in mind when we last disc brief, I have come to the conclusion thet, о he basis of the evidence now available to me, I would not be justified in recomie ing a fireball project. Іп my opi this evidence proves conclu- sively that the fireballs reported on fall into one of two categories: Those of the first category (the majority) are meteorite falls of n a unusual, but certainly not of impossible, magnitude, frequency ола 3 2 2 y ; ^ 4 i я ° 2 ` other characteristics; those of the second category (the minority} > г J are U, 8, guided missiles undergoing tests in the neighborhoods of the sensitive installations they are designed to defend, This interpretation of the latter category is the one that I answer to a question raised by Dr. conference on February end I doubt that it will bo However, even if my interpretation is the correct one, it is obvious it should refuse to do " "Only one cthcr point need be wrong in interpretin the guided mi certainly intensive, systematic i should not be delayed until the te year, Recent international developm I h imperative necessity of immediate investigation of the unc nvention- al green fireballs, in case you are š mati proving chat they are not e tt r 2 SBC è 22 15 If such on immediate investigation wer would recommend that Dr. Fred L, Whipple, of Harvard College Obser- а vatory, be placed in charge of the photograp tigation; that Dr, Peter 1, Millman, of the се placed in charge of th ectrographic NW 91526 To: Lt, Colonel Doyle Rees - Pace 5 Subj: Anomalous Luminous Fhenomena (Sev that Dr, L, A, Manning, a s I charge of the radar i sti zabic that Dr, Crozier, of the New > f Mines, be pls cod in el dust collection and ati the basis of many in field surveys, I do not anticipate that scarch will Lene any recoveries, but in case such gr. earch is vo > attompte it should be carried out on the ale stre 1 my conversations with you and Major Oder last month." 9, Although the “С recomnendations contained them are the rould urge you to sider at the present time. In conclusion, I should like to repeat offer made at the end of my letter of 3 to serve, if needed, as ааз VADS оп suggested in Major Oder's let with the stipulation, however, at mv service rather than on the $40 per day ontract spe ng. 7 Ж ZN Lincoln LaPaz, Director Institute of ieteoritics University of New Mexico NW 91526 NW 91526 TIME OF SIGHTINGS suo! ‚7 BA 45970 yo чаще DEPARTMENT OF HEADQUART ERS UNIT тасытты WASHIN THE INSPECTOR GENERAL USAF 17TH DISTRICT OFFICE ky: INVESTIGATIONS KIRTLAND ATR „йе BASE, NEW MEXICO DR/JIB eb 21,-8 18 May 199 UNKNOWN (Aerial Phenomena ) Commanding General Sandia Rase Albuquerque, New Mexico ATTN: Intelligence Officer 1. Transmitted herewith is a Summary of Information relative to the aerial phenomena which have been observed in the New Mexico -- West Texas area, 2. This investigation is being continued and your office will be kept informed of future developments. т 1 Incl DOYLE REES Summary of Information Lt/ Col, USAF District Commander DISTRIBUTION OF SUWMARY: На OSI 3d OSI Region CG, A] IC CO, Kirtland AFB CO, 636th Acft Control & warning Sq 1F Guided Missile Project AF Field Office for Atomic Energy CG, Sandia Pase Atomic Energy Security Service CG, Fourth Army BIO, Ft Bliss, Texas FBI, Albuquerque Dr Lincoln LaPaz, UNM File ND HH H rIPU HP HI mp I| p рор го н = / Are haf OF THE AIR FORCE {ТТЕР STATES AIR FORCE WASHINGTON ~. DECLASSIF {EÛ á Te W THE INSPECTOR GEN: 9752 | 17th DISTRICT O] OF SPE TN „Nd KIRTLAND A E BAS E 9y SUMMARY OF INFORMATION: 1. This is a comprehensive summary of all observations of unide fied aerial phenomena possessing similar characteristios whieh have be observed in the New Mexico-West Texas area. The common characteristics of most of the incidents are: a. Green color, sometimes greenish-white green, yellowegreen, or blue green. b. Horizontal path, sometimes with minor variations. c. Speed less than that of a moteor, but more than any of aircraft, 4. No sound associated with оБве ee No persistent trail or dust cloud. f. .Period of visibility from one to five 2. All of the incidents reported do not ров : en of the above cnaracteristics, but in each case one or more € In none of the reported incidents has any be responsible. 3. The body of this summary consis of a tabulation of observations with notes attached to clarify or amplify certain of the more important observations, Note numbers l, 5, and 5 ars taken directly from reports compiled by Dr. Lincoln LaP Jniversity of New xi Dr. LaPaz is internationally known and respected as a meteoriticist, and nas taken a great interest in 4, The tabulation of sightings is not a complete record of all roe ported observations, but comprises only those in which interviews were conducted by OSI personnel. Many other persons were interviewed by Dre LaPaz and his colleagues, but inasmuch ss complete data is not available, these interviews are not taken into account in this summary» -In addition, numerous reports have bsen received from individuals who could not provide / 77 r SHORT TITLE: Á / „ALA NW 91526 SUMMARY OF INFORMATION (Cont) 19 April 1949 1 . sufficient information to warrant inclusion of such facts as they did possess. Any interview where the veracity of the interviewee was doubted was discounted in the preparation of reports fur trznamjttc l. 1 Incl Tabular Summary w/notes NW'91526 5 н>» со сл ہی‎ сл «л @ сл сл сл c J D Qo со к сл л сл HS fo © о © o h^ со H> n со 20 mi, Fast o Vee Civilian Wagon Mound, Neti Civilian AESS Inspector Near. Ganado, Arize Dre Salsbury NW 91526 NW 91526 * EXTRACT FROM REPORT SUBMITTED BY DR. LaPAZ ON 20 DECEMBER 1948: December 14: 1:00 asme, lir. Mimo Sanchez (Wagon Mound, 2. Tho Real Path of the Only Green Fireball so Far Observed at Two Separate Stations, Among tho numerous observations so far made, there only one pair of corresponding observations i.e., those made simultancously by different groups of observers at widely separated stations. The only such observations are those obtained on the night of December 12 by one grow. of observers near Starvation Peak (Bernal, New Mexico - see report on inci: of 1948, December 12, 9h 2m plus or minus 30s), and a second pair of obser” stationed within the Los Alamos reservation. By graphic reduction of the simultaneously made observations, the following facts have been determined: The green fireball of December 12, oh 2m plus or minus 305 appeared very n. a point with the coordinates latitude 35° 50, longitude 1069 40! ond disan peared near a point with tho coordinates latitude 35° 451, longitude 107 travorsing a nearly or exactly horizontal path with a length of very near ly twenty-five (25) miles at an altitude above the surface of the earth of sp- proximately 8 to 10 miles, depending on the estimate of angular altitude employed in the reduction; tho velocity with respect to the carth works out at between 8 and 12 miles a second, depending сп tho duration estimate used. It should.be observed that the above results are obtained under the assumpti ог that the points of appearance and disappearance of tho fireball were seon simultaneously by both the Bernal and Los Alemos groups. In case this assump tion is not fulfilled, the real path could very easily be no more than 10 1 12 miles long, the velocity with respect to tho earth then working out at: betwcen 3 and 6 milcs a second. While there is thus considerable undortainty because of the lack of confirming azimuth observations from a third station, concordance in the five (5) different estimates of angular elevation make ic most unlikely that the linear height of the fireball was much less than 8 mi: and much more than 10 miles. It is interesting to observe that the backwar i extension of the 25-milo path first given passes almost contrally across tb Los Alamos reservation, ^ 5. Significant Differences Botwoon the Fireballs Observed in the Int 5-13 and Typical Meteors se 5.1 The horizontal nature of the paths of most of the December fir: balls is most unusual, Genuine meteors are rarely observed to move in horie zontal paths. 3.2 Again the very low height of the December fireball discussed 31 section 2 above sets it off in sharp contrast from the genuine metoors for which heights of the order of 40 or moro miles are normally obsorvod. 3.3 .The velocity determined for the fireball of December 12 is much less than the velocities determined from typical meteors (and yct is consid ably greater tham the speeds of the Y-2 Rockets or jet planes or of convent: flares). кем — NW 91526 @ TO: Colonel Doyle Rees December 20, 194 5.4 In the case of meteorites that penetrate to as low levels as that determined for the fireball of December 12, the observed luminous pho- nomena are always accompanied by very violent noises. Шо noises whatever have been observed iu connection with the various December fircballs so far investi gated. > rmally show renarkable variations fine : lires, which ars scarcely visible to ghtening up flash out near the end of their paths. of the December fireballs most of the observers have reported that balls appeared almost instantly at their full brightness. 3.6 In the case of genuine meteors tne 3 are directed tow all points of the compass with equal frequency г To 5 in thi of the green fireballs, plots of admissible : ach show that is & very pronounced tendency for the paths 1 of the sky, „7 The thrze g 9s of anor ous greenish luminous a curious association with we knowr. meteor showers, altho meteor showers normally produce extremcly EH those recently observed. For exemple, the obs appeared near the maximum of the Quadrantid s howe McCullough's « vation o cust wag псог the time the 5 bservotions a fell in ‘the interval covered by fat ość ship might indicate an attompt to. ous by causing them to appear cal 5.8 As noon ‚ an earlier communication, t color repcrted for mo ) the December S qm 8 oly case of genuine meteors. г laboratory identical with that given off by coppe alt: ino ры flame identification is correct, the wovelong of the radiation from the fireballs is near 5,218 4 j 59 The duration es „tes of between 2 and Š seconds reporte fei the green fireballs are considerably longer © those (0.4 - 0.5 ai for the ordinary visual m O bu 2 н the duration estiuctes invariably reported in AS < ; iir or even longer). 5.10 For none of the green fire cloud been reported. This contrasts һау with the of meteoric fireballs=-particularly those that penetrate to the levels where the green fireball of December 12 was obser vod. 4, On the basis of the various 5 to which atte in section 3, the writer remains of the opinion that the Be: ba 12 was definitely ncn-meteoric & that in all SRA the 1 of- most, if not all, the other brig ве | fireballs, which the G under investigation. LINCOL3 LaPAZ —— NW 91526 The unusual feature o hes c incider is that there were report: two red lights trailing t "ree ігер: n each case observers ap that the trailing lights retained a ci osition with respect other and to the green light all the green fir plane by Ato me EY truck driver and his wife» area, while that of the 151 NOTE 2 —— L= ШШЕ NW 91526 COPY NCLOSURE The University of New Mexico Albuquerque Institute of Meteoritics December 30, 194€ Lte Colonel Doyle Rees, Commanding Officer District No. 17 Office of Special Investigations From: Lincoln LaPaz, Director Institute of Meteoritics Subject: Anomalous luminous phenomena (Third Report) In the second report of this series, a description was given of the ics path through the atmosphere of the green fireball of 1948, December 12, 9” (plus or minus 305). On the basis of corresponding observations made fron. station near Starvation Peak, New Mexico, and a second station near Los Ala New Mexico, this fireball was found to have appeared near a point with the coordinates: latitude 35° 50' N, longitude 1069, 40! W, and to have disar near a point with the coordinates: latitude 35° 45! N, longitude 107? 05° traversing an almost horizontal path, at an elevation of about 10 miles sea level, with a length of about 25 miles, at a velocity of approxima’ 10 miles per second. (The minimum path length consistent with the observ was found to be about 11 miles, the corresponding velocity then falling bes! $.and 6 miles per second, depending on the duration adopted.) On the basis of corresponding observations of the greenish-white fir of 1948, December 20, 80 San p. m. made by two pairs of Los Alamos observers it has now become possible to work out another approximate real path, As be apparent from the oririnal accounts of the observations made by AESS Inspectors William D. Wilson, Buford б. Truett, Clifford Е. Strang, ard Рал: Security Inspector George $. Skipper, the fireball of 1948, December 20 was observed under less favorable conditions than the green fireball seen by f ve persons on the night of December 12. However, on the basis of the origina: accounts of the observers named above, of sketches supplied by these four i viduals on December 29 and of transit observations made by Captain M. 5. J and the undersigned on the same date at the points of observation (iz 550 48! „9, 106° 18! .4 for Strang and Skipper and $59 651, 106° 23° .; for Wilson and Truett), it has been possible to establish reasonable concordance between various points on the fireball path as seen by the two. groups ог Oh servers. Because of the very short baseline (only 8 miles long) between two points of observation and the difficult conditions under which the fir of December 20 was observed, it is my opinion that the real path derzvcd the December 20 observations deserves considerably less weight than that ct. tained from the December 12 observationse NOTE 3 —I NW 91526 Lt. Col. Doyle Rees December 30, 1948 It is found that the fireball doubly observed by ifessrs. Wilson, Truett, Strang, and Skipper appeared at 4 height of at least 10 miles and descendet an angle of about 450 to the vertical (according to Truett's estimate) to point C at an elevation of only 2e5 miles above the horizontal plane бзге. the point from which Strang and Skipper observed. As the fireball a 022 the point С, its path levelled off and from C to its point of disappearan: E, the fireball followed a nearly horizontal path approximately 7.5 milos moving with a velocity of between 3.75 and 7.5 miles per second, depondin the duration estimate adopted. The coordinates of the projection of © on earth are 35° 561, N, 1069 30! W, and those of the projection of E are $75 57! N, 1060 23t W. The forward extension of the fireball's trace on the as determined by the above projections, passes some six miles to the nort: 3 the town of Los Alamos e It should be noted that the descending branch of the path of the firs was observed by Inspector Truett alone, but ho was absolutely certain thas his observation of this portion of the path was correct. It should also be noted that no sound was heard, although the distance from the observers to fireball and from the fireball to tho earth could have been only a few^mil.: at most. І have no hesitancy in testifying that an object possessing the path and the other peculiarities observed by Messrs. Wilson, Truett, Stran; and Skipper was not a falling moteorite. , NW 91526 ZY E ТО: Director, Intelligence & Security Division FROM: Chief, Physical Security Branch SUBJECT: Reported Observation of Unidentified Light or Flar the Sky on 6 January 1949 le On 7 January 1949, the writer interviewed Pfc. Meredith Everitt, ASN 38552954, Headquarters, 8450th М.Р. Group, concerniny identified light or flare which he had reportedly seen 1 2. Pfc. Everitt advised that on 6 January 1949 he was guarding C-97 airplane at the landing strip, located adjacent to the Ordnance Area when at approximately 1730 hours he noticed a bright object travelling across the sky, from the Southeast towards the Northwest. He related that the object was diamond shaped, approximately two feet long, and appeared to be much brighter in its center than at the edges. He estimated that the object was approximately 1500 to 2000 feet in the air and travelled N 500 feet, horizontal to the carth's surface, before he lost sight of ite Pfc. Everitt was unable to estimate the speed of the object but stated that he has een low flying jet planes, and that this object travelled much faster than the jets that he has observed. There was nc smoke or other vapordus material visible to Pfc. Everitt around or following the object. 3. At the time Pfc. Everitt witnessed the object, he stated thst the sky was clear, furnishing a light blue beckground, and that the object appear ed to be a bright white light, with nc other apparent visible color. 4. Standing guard with Pfc. Everitt were Sgt. Richard Woleslegce arc Cpl. Wilson, and according to Pfc. Everitt, neither of the other men saw the object. Everitt explained that he called to Sgt. Woleslegce, who was standing at the other end of the plane, and told him to look at the object in the sky but by that time it had disappeared. 5, Pfc. Everitt stated that he attended Flight School, under the G.I. Bill of Rights in Houston, Texas 2 duking the year 1947, and that he has had some experience in observing aircraft. s MATTHEW Je BS 5 ө ntelligence & NW 91526 M 8 ж‏ ویدب THE UNIVERSITY OF NEW MEXICO ALBUQUERQUE Institute of Meteoritics Fobruary 21, 1949 TO: Lt Colonel Doyle Rees, Commanding Officer District No. 17 Office of -Special Investigations Lincoln LaPaz, Director Institute of Meteoritics Subject: Anomalous luminous phenomena (4th report) 1. Several additional sightings of unexplained aerial light phenomen have occurred since the third report in this series was prepared, OutstanJi among the as yet undescribed incidents was the green fireball of Sunday ovcri January 30, 1949, 5:54 peme MST. Within less than one minute after the ар-. pearance of the fireball, an eyewitness (Mr. Nesbett) called to report the pression of a group of persons who saw the fireball through an east window while seated about the dinner table in a brightly lighted roome Within twe: hours after the fireball appeared, more than 100 eyewitness accounts had b obtainod by its director through personal interviews. Ап unusually high per. centage of the reports came from military personnel (waiting out under the в” for Post Theaters to open), from guards and other special agents already ai to watch for anomalous luminous phenomena and from airplane pilots, contre: tower men and oilwell workers working on the late afternoon to midnight shift 2, On February lst, a staff car was placed at the writer's dispesal by Major William Godsoe of the Fourth Army and a field survey was begun of region in New Mexico and Texas in which tho majority of the observer's repor- ing the fall lived. This survey, carricd out under unusually severe weather conditions, included visits to the following localities: Moriarty, Estanci. Vaughn, Ramon, Mesa, Roswell, Caprock, Tatum and other towns in New Mexico: and Lamesa, Brownficld, Plains, Lubbock, 4uleshoe and other towns in T: (Several of these towns were visited two or more times.) At Roswell, where very effective cooperation was provided by the OSI group at Walker Air Base under Lt Paul Ryan, and the local CAP unit under Lt H. Ke Cobean, Spocial Agent Bill Ricket was added to the survey party and gave much aid in later work, At Lamosa, Texas, the ground survey party was joined by an air soar party consisting of Major Charles Phillips, USAF, Captain Melvin E. lee Special Agent Jack Le Boling, from the 17th District OSI office at Kirt Field, and Corporal Cochran. On February 4th, the four persons just named ric a low-level air reconnaissance mission in a Т-11 aircraft over the urea sur- rounding the earth-point of the fireball of January 30th. At tho same tim a second ground survey party under Lt Paul Ryan made a careful field search along a route extending from Lamesa through Amherst, Texas, to Clovis, iov chę f anc Lana NW 91526 3. As a result of the ground and air searches referred to above, and of an analysis of the very large amount of information obtained from eyewitnesses by personal intorviows, by telephone convers: ions and by letter, it has now (three weeks after the fall) become clear chat several han asses persons in New Mexico and Texas saw this great fireball leisurely = verse the skye has been possible to determine that the January 30th fireball became visib at an altitude of ызалы еше ү twelve miles over a iar 785 latitude | longitude 1029 5!, and disappeared at nn altitude of approximately eight over a point at latitude 320 481, longitude 102° 221, after . a nasrly horizontal path ¢ ipproximately 143 miles long at a velocity of from to fourteen miles per second. Although the January 30th firoball i nust b among the brightest observed in the last quarter-century, and in spite fact that its real path lay closer to the earth throughout its entire ext than any other meteorite path of which the writer has knowledge (әсерді: tho anomalous green fireballs of December 12th and 20th, 1948), t detonations and long continued rumblings which wit 3 excepti on 0 large meteorite falls were not observed on January 30th by anyone in the 3 large region covered by the various ground surveys However, what may hav been Udden noises (anomalous whizzing ond hissing junds frequently report by very distant observers as having b: „ard at the same time that a moto) ritic fireball was seen) wore he tosw UN exico, and near ilulosa Texas, 4, In addition to the absence of noise anomaly referred to in tho 1355 paragraph, the fireball of January 30th, 1949 ows several other features (eege nearly horizontal path, absence of long enduring luminous train or du, clouds, North to South direction, otc) characteristic of the green firebaiis earlier described in this series of reports. However, the January šOth fix ball was much brichter than any of those earlier reported and differed fr« other green fireballs in that many of the Texas observers who were situate: nearest its path reported its color cs blue, orange, red and even purple stead of greene 5. Up to the present time (February 21st), no evidence whatever suppe the belief that solid fragments foll to carth from the January 30th 5 has been discovered. However, as promptly as possible, a much moro 1 ground search should be made in the probable arca of fall as outlined earlier surveys, for, in my opinion, the fireball of January 50 -h is one of the anomalous luminous objects under investigation which gives cation of having been a meteorite falle 6. With the present report, the writer's participation in vestigation of the puzzling dere 1 must, to his cr t, ,erminat During the 125 I was on leave snce from the Univ act: of ci was glad to donate my time an ka 28 t his inv stięation= Now again serving as Head of the of Ma atics with a full load, it is impossible for me ia PE See 8a with the OSI. ny t of Mathematics "i ALa NW 91526 INCIDENTS CPF In each de ene „luminous, ana f posi bi of emitte € ( 8 б > — various: memeuvors, ons is 11 „ wirh turning movemenss:s Terminati Location from. tne The 17 February. obj that of 27 Har mn. Sound - reported im.sonjumsticn wxthzoitacr reports,-indicated thatothe .cojesis, г SOF: in, vertioesl,.manəougers, rather ӛлес sw as: weuld a ripigd.objeobs.. Іп neither case 23: Treten -pradnas any. evidence. cf A Jeb. Tropen e іп the arco... Observers in sdch case were found whose, credibility is abo ver averages. Romarks ` NW 91526 ENT OF 8 MARCE 1949: Inspector on duty at to be en eliptical, rather stubby, aluminum with billowy flame. There may have been control surfaces and } des the part of a wa behind the clouds. NW 91526 92S16 MN Z — vytܼ Z | ai» o riei A 2 HEADQUARTERS. SANDIA BASE ERU Dedi ALBUQUERQUE. NEW MEXICO MAR 31 1949 REFER TO FILE NO SBID/1 DECLASSIFIED SUBJECT: Unidentified Flying Objects E q TO: The Chief Armed Forces Special Weapons Project P. O. Box 2610 Washington 25, D. C. ATTENTION: Chief, Intelligence & Security Division 1. Reference is made to letter this Headquarters, file SBID/1, dated 31 December 1948, subject as above. 2. Inclosed herewith are three (3) summaries of information from Fourth Army, dated 16 March, 18 March, and 24 March 1949, dealing with the reports of unidentified lights appearing in the vicinity of Camp Hood, Texas. 3. А conference was held at los Alamos on 16 February 1949, to consider the unnatural phonomena that have been reported. (Commander Richard Kandelkorn represented this Headquarters at this conference, His report of this conference as well as a transcript of the minutes of the conference are attached hereto. 4, It is requested that these inclosures be returned to this Headquarters for file, after they have served their purpose, inasmuch as they are the only copies on hand. FOR THE COMMANDING GENERAL: * Ra 472 no m PZP Incls: 1. Memo, 18 Feb, 49 (SBRD-0-2173) 2. Sum. of Info, 24 Kam 49 w/sketch 3. Sum of Info, 18 Mar 49 w/sketch 4. Ltr 17 Mar 49 (MS-4th 5527) w/4 Incls 5. AEC Ltr 22 Mer 49 (in dup) w/Incl (HILL-5577) Distribution: 1А 6 2A - Addressee 3A =- I&S File 44 & 5å - Cl Doc Lib SHORT TITLE? Z/2—-6- NW 91526 SWPIN/380.01 SHORT ТИГЕ. 3772: 2: 2. 2 NW 91526 FXiA3H о ҰЯ RZEZ. теле. жайыз 22 | N.91528 18 Fobruary 1949 REPORT OF TRIP TO LOS ALAMOS, NEW MEXICO, 16 FEBRUARY 1949, BY COMMANDER RICHARD S. MANDELKORN, U.S.N., RESEARCH AND DEVELOPMENT DIVISION, SANDIA BASE. Subject: Project Grudge. 1. On 16 February, a conference was held at Los Alamos to consider the so-called green fireball phenomena which commenced about 5 December 1948, The following were present: For Los Alamos: Мг. Ne Ee Bradbury ir. Marshall Holloway Fred Reines John Manley Edward Teller Elmo Morgan (AEC) Sidney Neuberger (Security) Maxwell (AESS Hoyt For the Fourth Army: Major William A. Godsoe Ma jor Wynn For the U, S. Air Force: Captain Neef For the University of New Mexico: Dr. Lincoln LaPaz For Sandia Base: Commander Richard Mandelkorn 2. Captain Neef opened the meeting by saying that the problem was being presented to Los Alamos scientists in hopes that they would be able to indicate some mode of attack on the problem and offer some explana- V tions for the phenomena observed, He stated that this question had been classified military SECRET under the name, Project "Grudge", and that the investigation was now the primary responsibility of USAF, Air Materiel Command, Т-2. Не then turned over the discussion to Dr. LaPaz, — SEM uj ОҚТ TITLE sBRD<4-27/735 NW 91526 Ф —QLOBET-- | Ü / Report of Trip to Los Alamos, 16 Feb 49 (Cont. ) 18 February 1949 5. Dre LaPaz stated that he had been assisting the Military for the past two months at their request in the investigation of the subject problem, and went on with the general discussion of phenomena attending normal meteorite fall, postulating the following important character- istics: Random path of fall, Color and intensity variations in light emitted. Sound, Frightened animals. 4. Dr. LaPaz then went on to discuss the number of observers re- porting the subject phenomena and the diversity of their backgrounds, including commercial airlines' pilots, military pilots, special intelligence agents, Los Alamos personnel (Mr. Hoyt), and himself, as well as various and sundry previously uninformed citizens. 5. Dr. LaPaz then described the “Starvation Peak Incident" which he observed himself, detailing the following characteristics which indicate that the phenomenon can not be classified as a normal meteorite fall: a, Initial bright light (no period of intensity increase) and constant intensity during the duration of the phenomenon. be Yellow-green color (about 5,200 angstroms). ce Essentially horizontal path. de Trajectory traversed at constant angular velocity. es Duration about two seconds. f. No accompanying noise. 6. Since about 5 December 1948, there have been more than ten in- cidents analogous to the "green fireball“ described, and some twenty more presenting minor deviations to the above, which should be considerod in connection with them. In addition, there have been a number of normal shooting stars and meteors observed. 7, There ensued a general discussion in which it wes brought up that the majority of the observers whose reports were here under consideration were not subject to previous psychological influences or prior knowledge as to what they should iook for. Furthermore, "seeing" conditions for meteor observation throughout the continental United States were at least — i — NW 91526 Report of Trip to Los Alamos, 16 Feb 49 (Conte) 18 February 1949 average during December, January, and February, yet no green fireballs have been reported in any other areas. They seemed to be confined to the Los Alamos, Las Vegas, and West Texas triangle, 8, Mr. Teller then took over the discussion and showed that a material object travelling with the velocity of the subject phenomenon (about eight miles per second) would have to have a mass of about twenty grams, assuming all the kinetic energy could be converted to 161%» under the assumption that the light output is іп the vicinity of 10^^ ergs per second, He then went on to show that the shock wave produced by the passage of an object of these dimensions or greater passing through the atmosphere at a height of eight to ten miles (the observer figures) with a velocity of eight miles per second would produce a loud noise easily audible ten kilometers from the source, No sound has been observed, Therefore, Mr. Teller has the tentative opinion they are not material objects passing through the air. We should look to electronios and optics for an explanation rather than in the field of hydrodynamics. In any event, it was apparently agreed by those present that it was almost incredible that a large object such as a guided missile or informer vehicle could pass through the atmosphere at a height of eight miles at a velocity of seven to eight miles per second without producing a loud noise which would have been audible to observers. Mr. Bradbury demurred so fer as the electronic explanation was concerned, saying if it were assumed thet the answer lay in that region, many more difficult problems would -have to be solved. 9. The following action seems in order: a, Recalculation of the data outlined by Mr. Teller with a more accurate treatment to verify his tentative conclusions. be The establishment of well-equipped and organized observation stations to give as thorough photometric and photographic coverage as is possible in the geographic area involvsde ce Assuming that Mr. Teller's theories are borne out by re- calculation, deciassification of the Project to permit participation and thinking by scientists throughout the country. 10. Dr. LaPaz and Captain Neef have fruitlessly attempted to obtain information from a meteorite observers' group now at White Sands, said to be performing work under contract for the Navy. Commander Mandelkorn offered to assist them in their endeavor to enlist the services of the group for observations in connection with Project Grudge“. 11, Conclusion: It is my belief that these phenomena, *particularly if there are any further incidents, are deserving of serious consideration *See next page. - 57 -= NW 91526 Report of Trip to Los Alamos, 16 Feb 49 (Cont.) 18 February 1949 until their source and meaning have been satisfactorily explained. Although Mr. Teller's discussion tends to disprove the hypothesis that guided missiles or informer vehicles are responsible, there is cause for concern of the continued occurrences of unexplainable phenomena of this nature in the vicinity of sensitive installations. «Captain Neef reports blue fireball visible from Sandia at 0550, 17 February 1949, and a yellow-orange cigar-shaped light at 1759, visible until 1806, 17 February. /s/ Richard Mandelkorn RICHARD MANDELKORN, Commander, U.S.N. Copy Furnished: Fourth Army, С-2 -- Major William A. Godsoe (2) USAF -- Captain Neef USAF FOFAE -- Brig. Gen. Howard G. Bunker Distribution: Serios B. Copy 1 -- Security and Intelligence Division, Sandia Base, — le [1— NW 91526 NW 91526 SUMMAŃ. OF INFORMATION ед = PREPARING OFFICE SUBJECT CODE FOR USE IN INDIVIDUAL PARAGRAPH EVALUATION : OF SOURCE: OF INFORMATION: COMPLETELY RELIABLE . . .. CONFIRMED ВҮ,ОТНЕВ SOURCES . . Unusual Lights USUALLY RELIABLE PROBABLY TRUE FAIRLY RELIABLE POSSIBLY TRUE 452,1 AKADB NOT USUALLY RELIABLE DOUBTFULLY TRUE IMPROBABLE TRUTH CANNOT BE JUDGED . . . . SUMMARY OF INFORMATION The following information has been received in a report from the Office of „the AG of S, Ge2, Headquarters 2d Armored Division, Camp Hood, Texas: On 154947 March 1949, four unidentified lights appeared in the vicinity of 915,26 » 855,19, the lights noticed at this time were three yellow and one red, А patrol of Killeen Base, in the "Q" Area noticed two of these lights, A patrol located on Grossville Mountain, which consisted of four enlisted men of the Alert Force saw four, . Immediate investigation in the general area failed to reveal any cause or anything which would indicate that some person or thiag had been in the area, (В-3) (see Exhibit I, Point #1) At 185900 March 1949, another yellow light was seen in the approxima te vicinity of 910,41 - 855,10, This light was reportedly seen by only one man, There was no indication from reports that these lights were moving, there was no noise, and the persons reporting were unable to make an estimate of the height. (B-3) (see Exhibit I, Point #2) At 181947 March 1949, what appeared to be blinking lights appeared in the vicinity of the Rock Quarry, located at 905,82 - 855,61, Investigation by the Alert Force and patrols of Killeen Base failed to reveal any cause or person in that general area, Again at 181955 March 1949, lights were seen in this general area, (8-3) (see Exhibit I, Point #3) At 1 March 1949, blinking lights were seen in the same general area 905,82 - 855.61, Investigation failed to reveal the cause of these lights. All of the lights which appeared in the proximity of 905,82 - 855.61 were seen patrols located in the "Q" Area and were seen from points between 910,20 - 855.36 and 905.44 ~ 855.41. (B-3) (see Exhibit I, Point #4) Horace McCulloch, Headquarters 2d Armored Division, and Мг. Raymond Captain Sehmidieke, Special Agent, Killeen Base, spent several hours from an observation point located in the "0" Area іп an attempt to see these blinking lights. DISTRIBUTION DE, GSUSA; GG, AMC, Wright-Patterson AFB j GG, Sandia Base; FBI OSI, Kirtland AFB; File, : Тенчи -AGO FORM U. S. GOVERNMENT PRINTING OFFICE 16--53396-1 Мур 568 NW 91526 TANK DESTROYER CENTER CAMP HOOD , TEXAS | 850.00 . SCALE [62,500 FIRST EDITION 1943 905.00 — ` ` ~ NW 91526 Office of the AC of 8, G-2, Headquarters Fourth Army, Fort Sam Houston, Texas SUBJECT CODE FOR USE IN INDIVIDUAL PARAGRAPH EVALUATION OF SOURCE: OF INFORMATION: UNUSUAL LIGHTS COMPLETELY RELIABLE K CONFIRMED BY OTHER SOURCES . . USUALLY RELIABLE PROBABLY TRUE (452 ol AKADB) FAIRLY RELIABLE POSSIBLY TRUE NOT USUALLY RELIABLE DOUBTFULLY TRUE IMPROBABLE TRUTH CANNOT BE JUDGED . . . . SUMMARY OF INFORMATION Eight moving "lights" appeared in the atmosphere over or in the vicinity of the "Q" area, AFSWP, Camp Hood, Texas, on the evening of 17 March 1919, At the time of these sightings, the alert guard of the 2nd Armored Division, under the Assistant AC of 8, G-2 of Camp Hood, was in the area concerned and prepared to fire flares and record instrument readings of elevation and azimuth. The purpose was to check the powers of observation of observers who had previously reported the phenomena observed on 6-7-8 March 1919 and heretofore reported in Summary of Information, this headquarters, dated 17 March 19/9, subject: "Unusual Lights." However, before this operation could be begun, the series of 8 unusual "lights" appeared. Coordinates of lights and time of sighting follows Coordinates 910.40 - 855.1), — — — ——— 910.39 - 860.13 | | ‚ БЕЧА ED 910.12 = 860. 1l, | 2 910,38 - 860.15 910.32 - 855.20 910.30 - 855.17 910.36 - 855.06 910.37 - 855.55 ) Coordinates were based on dual sightings of each light by sights on tanks of observers. Time was clocked at instant of sighting. Captain McCullough, the Assistant 6-2, personally observed three of the lights. Physical character- istics of these "lights" were reported as "quite different" from those reported on 6-7-8 March 1919. One burst into a green cluster, One was reddish, another white. One observer described some of them as similar to Very Pistol flares. While this phenomena was occurring, 8 security detachment from the "Q" area arrived in the vicinity of the alert crew from the 2nd Amored Division. DISTRIBUTION WD mi 5 6 8 š | U. S. GOVERNMENT PRINTING OFFICE 16—53396-1 KM LE 7^ > NW 91526 SUMMARY UF INFORMATION CODE FOR USE IN INDIVIDUAL PARAGRAPH EVALUATION OF SOURCE: OF INFORMATION: COMPLETELY RELIABLE . mee CONFIRMED BY OTHER SOURCES . . PROBABLY TRUE POSSIBLY TRUE DOUBTFULLY TRUE IMPROBABLE TRUTH CANNOT BE JUDGED . . . . SUMMARY OF INFORMATION It was then determined that no one in the "QU area was responsible for the "Q" area then went on alert status. Ordnance check has shown that nothing in the way of pyrotechnic missiles has been issued or used in months. Investigation of whole area by ground crews is being made and additional will be rendered, As in the case of the 6-7-8 March "lights," those of the 17th "bracket" the "Q" area, One group of 3 lights being North of the area and one group of 5 lights just South of the area, Overlay showing locations ig attacheds (EXHIBIT I) Federal Bureau of Investigation, San Antonio, Texas, Office of Naval Intelligence, San Antonio, Texas, have been notified. Director of Intelligence; Air Materiel Command; Office of Special Investigations, Kirtland Air Force Base; and Commanding General, Sandia Base, are on distribution of this Summary. DISTRIBUTION FBI, Santex; ONI, Santex; DI, GSUSAs CG, AMO; OSI, Kirtland AFB; CG, Sandia Bases File WD Ma 5 6 8 U. S. GOVERNMENT PRINTING OFFICE 16—53396-1 NW 91526 905000 Yards 850000 Yards NW 91526 TANK DESTROYER CENTER, CAMP HOOD, TEXAS SCALE: 1:62500 (Firs6 Edition 1943) (ыза bat eren гора) sown: 708200 Е WY! 1 A ri niy, ; ; i “ath mU ү ? M С p aiti icd ç "AWA W ] | > A: м UA ah М 14 UM ki 32% y pot: 152.1 AKADB 17 March 1919 SUBJECT: Unusual Lights Comending General Sandia Base P. 0. Box 5100 Albuquerque, Now Mexico ATIN: AC of 5, G-2 The attached Summary of Information, this office, subject as above, 16 March 1919, re reports of "lights" observed over Camp Hood, Texas, is forwarded in duplicate for your information and any action deemed necessary. FOR THE COMMANDING GENERAL: 1 Incl (dup) HUSTIS 1. POLAND As stated, w/EXHIBITS I, II, Colonel, GSC ІІІ, and IV AC of S, 6-2 » 3 DEGLASSIFI ic FED | Siegen Ато МЫ USLE ME SSJ NW-91526 SUMMARY 0F INFORMATION "16 March 1919 PREPARING OFFICE Office of the AC of 8, 0-2, Headquarters Fourth Army, Fort Sam Houston, Texas CODE FOR USE IN INDIVIDUAL PARAGRAPH EVALUATION OF SOURCE: OF INFORMATION: COMPLETELY RELIABLE . oi errs CONFIRMED BY OTHER SOURCES . . USUALLY RELIABLE PROBABLY TRUE FAIRLY RELIABLE POSSIBLY TRUE IMPROBABLE TRUTH CANNOT BE JUDGED . . . . SUMMARY OF INFORMATION Following is an interim summary predicated on request of the Fourth Liaison Officer at Sandia Base for this headquarters to investigate and report on "fireball" phenomena reported to the Commanding General, Sandia Base, by AFSWP installation at Camp Hood, Texas, Report stated mat several sightings of unusual "licht" phenomena in the atmosphere above Site Baker (Q Area) had been made by security personnel there during the period 6 » 8 March 1919. AT GAMP HOOD, it was determined that this type of phenomena, hitherto unreported characteristics of the phenonena at Sandia Base. Because observers wore in not certain as to time, it is possible that on the same dato are duplications. It had been instruoted to look for or All stated without equivocations that the reported phenomena. All claimed t on the Camp Hood Reservations but phenomena was All men were te the spot where the observations had been d then plotted on map, Camp Hood and vicinity, have been made and a copy is hereto attached. Тһе observer was thon told to aim a surveying instrument, brought along for the purpose, at the celestial points of gin of termination of the phenomena, Vertical angles and magnetic azimuth each point was then recorded. In most cases, the observer was able to fix azimuths by some terrain features. Vertical angles were of course estimated except where elevations of observations coincided with ridge оп tree lines. Observations on 6 March 1919: 1. From observation point {6 (see attached overlay) a. Location of points 909.7 = 857,5; Time: 2100 hours. be Weather: Overcast (see attached weather report). М/О!» «568 ашыла ад NW 91526 „ Ф 8/1, Office of the 40 of S, 0-2, Headquarters Fourth Army, Fort Sam Houston, Texas, 16 March 1919, subj, "Unusual Lighte de Object sighted: Mbor: 1 Shape: Oblong Size: Described as “about 2 ft by 1 ft” болог: Pale blue-white light Speed: Hot know Direction: From N 7h? W to N 61° W Meneuverability: No deviation from course Altitude: From 6° above horizon to 1,5! above Sound: Nono Exhaust trail: Sgt Vickery reports none, Pfo Ranson reported a faint pinkish red trail extending about three times the length of the body. 2, Froan observation point #1 (see attached overlay). в. Location of point: 91.3 ~ 855.7; Times About 2020 hours, b. Weather: Overcast (seo attached weather report). Gs Witnesses: Pvt Martin M, Fensterman, US 57122075 nd АТВ, Company А Camp Hood, Texas Pvt Frank (MMI) Luisi, US 57100167 l2 АТВ, Company А Camp Hood, Texas Object sighted: Color: Pale blue-white light Speed: Not known Direction: N ho? E Meneuverability: None--was a "fixed flash" Altitude: 59° above horizon Sound: None Exhaust trail: Hone NW 91526 8/1, Office of the AG of 5, 0-2, Headquarters Fourth Army, Fort Sam Houston, Texas, 16 March 1919, subj, "Unusual Lights” 3, From observation point #3 (see attached overlay). в. location: 914.5 = 856,14 Timo: About 2045 hours. b, Weather: Overcast (see attached weather report). $. Witnems: Pvt Harold D. Moore, US 57110066 Lend АТВ, Company А Camp Hood, Texas Object sighted: 1) Naber: 1 2) Shape: Roundish head with trail Size: About 109 in length Color: Light colored head, orange trail Speed: Not known Direction: From 8 819 W to 8 60° W 8 Meneuverability: Ко deviation from course 8) Altitude: - „| 219 above horison to 6° 31' above jo) Bound: 10) Exhaust uM Orange trail about 109 long 11) Remarks: Appeared to be going over Q area Observations on 7 March 1919: 1, From observation point #1 (sce attached overlay) а. locations 914.5 ~ 855,7; Time: 0115 hours. be Weathers Clear (seo attached weather report). Ge Witness: Pfo Robert Gardner Bleck, US 57112155 lnd АТВ, Company А Camp Hood, Texas Object sighted: 2 Number: 1 2) Shape: Like flash bulb Size: Flash bulb Colors: Brilliant blue-white Speed: None Direction: N 40° Б Maneuverability: None--fixod flash Altitude: 66° 15% above horizon Sound: None ) Exhaust trail: Nono CIronmcx ЖС NW 91526 8/1, Office of the AC of 5, 0-2, Headquarters Fourth Army, Fort Sam Houston, Texas, 16 March 1919, subj, "Umususl Lights" (11) Remarks: This observer із в Harvard фе. Used stars to mark bearing and elevation of sighting. ted he had never seen anything like this phenomena before. 2. From observation point #2 (see attached overlay). a. Loontion: 915.1 - 956.13 Timer 0115 ~ 0130 hours, be Weather: Clear (see attached weather report). Фо Witmess: Pvt Paul C. Bryant, US 57201806 inä АТВ, Company А Camp Sood, Texas Object sighted: (1 Maneuverability: None--fixed flash Altitudes 27° 50% above horizon Sound: lone Exhaust trail: None. 5. From observation point 25 (seo attached overlay). 8. Locations 914,6 - 856.7; Times 0120 ~ 0200 hours. be Weather: Clear (see attached weather report). Ge Witnesses: Pvt Francesca (NMI) Lonardo, US 57175045 Land АТВ, Company A Camp Hood, Texas Pvt Savino Е. mery US 57175036 hnd АТВ, Company A Camp Hood, Texas Objest sighted: Number: 1 Shapes Dell like flesh Size: Like flash bulb Color: Bluish white 2 = 2 — F - NW 91526 8/1, 07730 of the AC of В, 0-2, Headquarters Fourth Army, Fort Sam Houston, Texas, 16 March 1919, subj, Lights" (@ Bieten 8 20% w Maneuverability: None~«fixed flash 8) Altitude: 26° above horizon 2 Sound: None (10) Zxhaust trail: Nono Ц. Prom observation point #7 (see attached overlay) а. location: 909.0 ~ 856,9; Time: 015 hours. b. Weathers Glesr (see attached weather report). бе Witness: Pfc Max Bugene Manlove, AF 15418997 18% Provost Security 84 Camp Hood, Texas Object sighted: Mumbor: 1 1 Teardrop "About 2 ft by 1 ft" ë 3 i, No deviation № when first seen--dropped vertically None (10) Exhéust trail: None (11) Remarks} Witness said this "light" dropped vortically to ground and disappeared behind trees directly in front of han. In view “about 2 seconds." Observations on 8 March 1919; 1. Prom observation point #1 (see attached overlay). a. location: 914.5 ~ 855.7; Timer About 0103 hours. be Weather: Clear (see attached weather report). 0: Witness: Pvt Charlie H. Payne, US 57211002 ind АТВ, Company А Camp Hood, Texas - NW 91526 8/1, Office of the AC of 8, 0-2, Headquarters Fourth Army, Fort Sam Houston, Texas, 16 March 1919, subj, Lights" 4. Object sighted: Number: 1 Shape: Roundish head with hazy smoke trail, Size: Not known Colors Pale white light at head Speeds Not known Direction: From 8 589 5 to 8 519 E Maneuverability: No deviation Altitude: From 589 above horizon to 519 above Sounds lone Exheust treil: Left hasy white smoke trail Remarks: Travelled in arc and visible "long enough to snap your fingers.” 2. Prom observation point # (see attached overlay). а. location: 914,5 856,7; Timer About 0103. be Weather: Clear (see attached weather report). T Gpl luke Burke Sims, RA 58755116 A, lina АІВ Camp Hood, Texas Objeet sighted: Naaber: 1 Shape: Lemon with tail Size: Not known Color: Pale reddish nose, whitish red trail Not known, but very fast Prom М 969 W to 8 619 W No deviation above horizon at beginning and end of arose Exhaust trail: Whitish red trail Remarks: Good observers Stated that "light" started from point ebove horizon then erced upward and down to 15° when it disappeared. Was perfect are. Но was able to run 10 paces toward field telephone to report light before it vanishode The following incident may or may not be oonnooteds At about 1930 hours on 7 March 1919, в flashlight was seen moving about the Q Area fence lino near the air strip, Tt oculd not be told by the observer whether the light was within or 6 -ЕЕЕГСІ — «NW 91526 8/1, Office of the AC of 6, 6-2, Headquarters Fourth Army, Fort Sam Houston, Texas, 16 March 1919, subj, "Unusual Lignte" without the fences The Security Officer of Site Baker is investigating. Не stated the light was not carried by апу of tho АРБИР personnel. Investigation continues in an effort to determine cause of the "lights." last information is that 52 trip flares have been put into the general area by the 2nd Armored Division and that some may have been set off by wild animals. Subse» quent sumaary will be rendered when more exact evidence on flares із obtained. It is presently known, however, that these flares explode on the ground and do not shoot into the aire No conclusion is drawn fran the data on attached overlay other than to note that the "lights" form a rough cirele about the "Q" Area, бору of surface weather observations for Camp Hood on the б, 7, and 8 March 1919 are attached as a possible eid in analysis. This report covers only day hours since the USAF weather service at Camp Hood closes at 1700 hours and opens st 0730 hours. (2-2) EXHIBIT I ~ Overlay, Tank Destroyer Center, Camp Hood, Texas EXHIBIT II + Weather Report, 6 March 1919, Camp Hood, Texas EXHIBIT III ~ Weather Report, 7 March 1919, Camp Hood, Texas EXHIBIT IV > Weather Report, 8 Maroh 1919, Camp Hood, Texas NW 91526 LENGTH OF RAY LINES DOES NOT INDICATE DISTANCE FROM OBSERVATION POINT TO OBJECT. DISTANCE FROM OBSERVATION POINT TO OBJECT IS UNKNOWN. 7 MAR 7 MAR Y GREEN DESI 3l ATES ( BJĘ TS SIG ITEC 5 MARCH: 1949 RED ' : : 7 MARCH 1949 BLUE и ° е в МАКОН 1949 <» MOVING OBLONG FIRE BODY WITHOUT TRAIL т FIXED FLASH S(O MOVING FIRE BALL | ТОО MOVING OBLONG FIRE BODY WITH TRAIL 1.0.— INITIAL OBSERVATION T.O — TERMINAL OBSERVATION 6 MAR | ews NO 7 MAR 28 95, 860000 ¥035 e ` © ТАНК DESTROYER CENTER CAMP HOOD, TEXAS ^ 5 SCALE 1:62, 500 >, FIRST EDITION 1943 LINES AS SHOWN ON OVERLAY HAVE BEEN CONVERTED FROM MAGNETIC TO GRID AZIMUTH. Р Ж p ІШ NW 91526 rME2 ve MOM OW ou LO ешр YSIWNLH' 66 ix mae aia a | | % COMAEKLED lH ^ WES x к LIKBL EDILIOM lód? p шу, | kask eM. | LA | ' А. | sevre nas 200 NT MERE С Жш * Ë i 28. 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