CIA-UAP-D001, Intelligence Information Report, USSR, 1973
This document is a Central Intelligence Agency (CIA) intelligence information report (IIR) that describes human intelligence gathering activities in the Union of Soviet Socialist Republics (USSR). This report characterizes its content as informational, not as finally evaluated intelligence. In section 14 of this document, the source describes an incident occurring in summer of 1973, where he allegedly observed an airborne, luminous, bright green, unidentified object. The source described concentric circles forming around the phenomenon over a period of several minutes, before it dissipated. The source also stated that no sound attended the observation. The source offered no opinion on the nature of the phenomenon and was unable to provide further details regarding the incident.
The summary above is sourced from the released file metadata as published to war.gov. The analysis sections below are original to this tracker.
Text of the document
Machine-extracted from the PDF war.gov published (its text layer or OCR), so expect errors, especially in names, numbers and handwriting; the PDF is the authoritative copy. Lines that did not extract as readable text are left out. Showing about 418 words from pages 1, 2, 3 of 3.
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Approved for Release 2026 intelligence 1nrormanon Kcpon THIS lS AN INFORMATION REPORT, NOT FINALLY EVALUATED lt-:JTHLIGENCE su~ECT The Sary Shagan Weapons Testing ACQ Germany FIELD NO. This report! Summary: This report· provides limited info:rza.tion on the Sarr security fencing, the re onal headquarters (V/Ch 0.3080)_ ud ~ warhead checkout unit (V 03142). Also included ii U•i~ed un1dent1f1ed aerial phenomenon. End of SU1111Ury.
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and/or Aldan. (Field Comment: :.ou;ce did not ~new if Aldan was checked at Site 4 were taken to ~-.it~-for laun-:hing. According to rumor, the missile ~as for antimissile defense (nrotivo System- ~oa;Alctan m1ss1le in avafj able rererence materi?.l as the li. The warhead for the Sy5tem-300/Aldan missile was about two meters long and 80 to 100 certimeters 1n diameter. The war head weighed approximately 400 kilograms, and it ~ontained an unrecalled number of black cassettes, 45 x 12 centimeters, which housed an unknown .number of meta] balls (shariki). Warheads for the Sys:em-75 [SA-2) missile had approximately 100 grey cassettes, 30 x 7 centimeters, each of which held about 200 to 300 meLal balls, each no more than 1.5 centimeters in diameter. (Field Comment: Source had no knowledge regarding nuclear warheads. He opined that all systems could be equipped ~ith nuclear warheads. However, Source stated all work done by his department was basically 13. According to hearsay, ecperiments involving laser weapons were being conducted at an unknown location at the range. Sup posedly, the tests involved powe:i:--Eul antennas (no further details). 14. On one evening in late :,ummer 1973, Source observed an
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SOURCES AND METHODS INVOLVED unidentified phenomenon at Site 7. While watching a sport com petition between Canada and·the.U::iSR on television, he stepped outside for some air and observed an.unidentified sharp (bright) green circular object or ~a~s in the sky. The object was situated \>.·est of the site at an angle· of sighting of approximately 70 degrees. The altitude of the object was undeter~inable. (Field Comment; Although there were no clouds in the sky that even1n6 , Source believed that the green mass would have been hiiher than cloud level. Source could not estimate the diameter of the object.) Within 10 to 15 seconds of observ~tion, the green circle widened and w'ith'in a brief period of time several ireen concentric circles formed around the mass. Within minutes the'coloring dis· appeared. There was no sound, such as an explosion, associated with the phenomenon. (Field ColllJllent: Source had no. opinion as to what this phenomenon was. 16 n-vas no resultant rumors. Source could not provide any further details.)
Where this file fits in the PURSUE archive
This file is one of CIA's 23 files in the Trump PURSUE disclosure. Within the CIA agency block it ranks #23 of 23 by Anomalousness Index. Across the entire 450-file archive it ranks #445 of 450.
That places it in the lower-scoring band of the archive (445 of 450 by score), typical of investigative-record style files where the report is paper-based rather than instrumented.
For the broader cluster context, this file is part of CIA-UAP-D001 (1973 USSR) - the 1973 CIA Intelligence Information Report describing a HUMINT source's observation of a bright green airborne UAP in the Soviet Union. The cluster page walks through all 1 member files with regional grouping, sensor breakdown, and standout analysis.
Anomalousness Index: 47/100
Evidentiary weight that this encounter remains unexplained after conventional analysis. Not a probability of extraterrestrial origin - that number is not honestly computable from the released files and this tracker refuses to publish it.
🤖 AI-ASSISTED SCORING · methodology
The six rubric components break down for this file as follows. Each component has a weighted contribution to the final score; the per-component explanation below describes what this file's particular value on that component means in the rubric's framework.
No sensor, camera, or instrument backs this observation - it is testimony, relayed through the CIA, and scored on the rubric's lowest sensor-quality tier for that reason. That doesn't bear on the witness's credibility (a separate axis); it reflects only that nothing beyond human perception recorded the event.
A civilian account, routed into the federal record via the CIA's investigative channels rather than an operational mission report. The rubric scores this tier below uniformed personnel specifically because of that remove - the witness wasn't reporting from within a federal mission context when the observation occurred.
On corroboration, this file from the CIA - like every single-tier file in the PURSUE archive - is a single-witness or single-instrument capture per the released metadata. The rubric doesn't infer multi-witness confirmation the summaries don't actually establish; this score reflects the honest limit of what was released, not a judgment about the underlying event.
The released file contains no speed, acceleration, or vector data precise enough to score on the kinematic axis - and that's true archive-wide, not specific to this file. The rubric declines to infer kinematic anomaly from a witness's narrative estimate of how fast something moved; that itself says something about what PURSUE actually released: descriptive accounts, not flight-path telemetry.
Every file in the archive, including this one, scores this tier: a conventional explanation was considered in the released record but isn't treated as dispositive. That's a pattern in how war.gov's own summaries are written - they consistently hedge against strong conclusions either way - and the rubric takes that hedging at face value rather than resolving it for them.
This file from the CIA is catalogued as unresolved, with no formal review process having concluded - logged into the system, but not yet finalized by any review. The rubric treats that differently from 'open after review,' because the absence of a completed review is itself part of the file's status, not a placeholder for one.
Bottom line on the score: the Anomalousness Index of 47/100 reflects evidentiary weight that this specific file's encounter remains structurally unexplained by the rubric's six axes - it is not a claim that the underlying event involved anything non-conventional, and it is not comparable across rubrics that use different weights. For the full per-axis weights and the rubric JSON, see /methodology.
Related files in CIA
Other PURSUE files in the same category, ranked by Anomalousness Index.
ODNI-UAP-D001, USPER Narrative, Senior USIC Official
CIA-UAP-002, Scientific Advisory Panel on Unidentified Flying Objects, Report, 1952-1953
CIA-UAP-003, The Central Intelligence Agency and Overhead Reconnaissance; The U-2 and OXCA…
CIA-UAP-004, CASE 17708 (CLOSED) and DR. Leon Davidson
CIA-UAP-005, German Scientist's Article on 'Flying Discs'
CIA-UAP-006, Sighting Of Unconventional Aircraft
Verification
SHA-256:
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