On May 8, 2026, the U.S. Department of War added a 200‑page PDF titled “DOW‑UAP‑D49, Launch Summary, Vandenberg AFB, 2000” to the publicly‑accessible PURSUE archive. The document, originally compiled by the 30th Space Wing Office of History, catalogues every major launch that took place at Vandenberg Air Force Base, California, from the base’s inaugural flight on 16 December 1958 through 3 February 2000.
The Department of War’s release note describes the file as a “record of launches occurring at the base between 1958 and 2000,” with the incident date recorded as 3 February 2000. No precise launch site beyond Vandenberg is given, and the file does not reference any unidentified aerial phenomena (UAP) or anomalous events.
According to the foreword signed by Jeffrey Geiger of the Office of History, the registry lists vehicles in chronological order, using Vandenberg local time for each launch date. The report is divided into two principal matrices—“Annual Launch Summary by Booster” and “Annual Launch Summary by Command”—and is supplemented by a “Launch Facility Guide” and an extensive glossary of acronyms used in missile and space programs. The glossary defines terms such as ICBM (Intercontinental Ballistic Missile), ABRES (Advanced Ballistic Re‑entry System), DMSP (Defense Meteorological Satellite Program) and ERCS (Emergency Rocket Communications System).
Distribution of the document was limited to thirty recipients, including Headquarters USAF, NASA, and major contractors such as Boeing Defense & Space Group, Aerospace Corporation and the Jet Propulsion Laboratory. The foreword explicitly notes that the cumulative figures presented reflect only Vandenberg operations and exclude launches conducted elsewhere, for example Titan IV missions from Cape Canaveral, Florida.
The release is part of the PURSUE archive, a government initiative that has been publishing declassified material related to UAP investigations. While the archive’s purpose is to provide records that could shed light on unexplained aerial sightings, the Vandenberg launch summary itself offers no direct connection to such phenomena. Its inclusion under the UAP banner appears to stem from the broader categorisation of the archive rather than any specific incident documented within the file.
Wikipedia defines “unidentified flying object” as any aerial sighting that has not yet been identified, noting that most reports are later explained as known objects or atmospheric effects, with a small fraction remaining unexplained. The PURSUE archive aims to make government documents that might relate to these unexplained cases publicly available. In this context, the Vandenberg launch log serves as a baseline record of routine space and missile activity, potentially useful for cross‑referencing with other, more directly UAP‑related releases.
The document’s official summary provides limited detail beyond its description as a launch log, and the February 3, 2000 date likely corresponds to the “as‑of” timestamp on the distribution list rather than a particular launch event. No mention is made of any anomalous sightings, and the glossary’s focus on missile re‑entry systems and advanced maneuverable vehicles underscores the technical rather than investigative nature of the record.
Observers note that the file’s placement in the UAP section raises unanswered questions about the Department of War’s criteria for inclusion. Future PURSUE releases may clarify whether the Vandenberg summary is intended as contextual background for other UAP documents or simply as part of a comprehensive declassification effort.
