Documents / Report

UAP Reported at Sandia Base, 1948-1950

U.S. Department of War · 1948 · 116 pages · text by GLM-OCR

This U.S. Department of War release compiles 1949 records tied to Sandia Base, New Mexico. It includes a Sandia Base security inspection reply and a W. D. Crozier letter to Lincoln LaPaz. It also contains Crozier and Seely's report on collecting airborne copper particles after the July 24, 1949 fireball near Socorro, which they judged negative or inconclusive. LaPaz's sixth report on green fireballs disputes parts of that finding, and a Fourth Army report describes unusual lights around the Q Area at Camp Hood, Texas, in March 1949.

From the source:Release of 2026-05-22 Incident: 1948-1950, New Mexico. This file contains 116 pages of documentation from the Armed Forces Special Weapons Program (AFSWP) – the direct, post-World War II successor to the Manhattan Project – and from the U.S. Air Force – relating to a series of sightings and investigations in Sandia, New Mexico, from 1948-1950. This file contains 209 sightings of “green orbs,” “discs,” and “fireballs” reported near the military base. Witnesses reported unidentified anomalous phenomena (UAP) maneuvering, flying out of sight, disappearing, or exploding. The documents also include the results of contemporary investigations into residual copper powder found in some areas where sightings were reported. A few of these investigations became the basis for Project Grudge, which collected reports of unidentified flying objects from various other military installations – also included in this collection.

Read from the scan by GLM-OCR; expect the odd misread word.

Summary of Sightings of Unknown Aerial Phenomena, 17th District OSI (cont)

Number	Date	Time	Number of Observers	*Reliability of Observers	General Area of Occurrence	Apparent Direction of Flight	Apparent Altitude	Course Horizontal to Vertical	Color	Train or Trail	Duration of Observation	Sound	Shape	Apparent Size	Apparent Speed	Manner of Disappearance	**Evaluation
117	1949/27 Sep	0300	1	Unk	Sandia Base, New Mexico	SE to NW	15°-20° above horizon	Traveling in arc toward earth	Bright green	None	2 secs	None	Round	Same size as perimeter fence light at distance of about 200 yds.	45° in 2 secs.	Brightened then went out	(1)
118	27 Sep	0150	1	Unk	Sandia Base, New Mexico	S to N	20° above horizon	Made a gentle arc toward earth	Dark blue	Yes	2 secs	None	Coni-icle w/tail twice its diameter	Looked like a sky rocket	50° in 2 secs.	Burnt out	(3)(1)
119	27 Sep	0130	1	Unk	Sandia Base, New Mexico 45° above horizon	Moving tangent to earth	Green	None	1 sec	None	Round	Fist at arm's length	20° in 1 sec	Burnt out	(3)(1)
120	30 Sep	2257	1	Unk	Sandia Base, New Mexico	S to W	55° to horizon Yellow orange	None	2-3 secs	None Slightly larger than shooting star	200-300 mph (1)
121	2 Oct	2110	1	R	Los Alamos, New Mexico 20,000-30,000'	Went up & then down	Bright green	Yes	3 secs (1)
122	6 Oct	1745	1	Unk	Mescalero, New Mexico 15½° above horizon	Descended in slight arc	Dark green	None	30 secs	None	Round	Big ball Disappeared behind hills	(1)

Cases discussed

About this file

Report, from the pursue collection. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 116 pages are in the text index: search them above, or from the library's search.