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Declassified UFO / UAP Document

Unidentified Flying Object - Cajamarca, Peru

📅 26, 28, 29 October 1957 and 8 November 1957 📍 S of Caja Marca, Peru 🏛 OAirA, Lima 📄 Air Intelligence Information Report
VenusCajamarcaPeruZeiss-Recording-TheodoliteProject 10073Air Intelligence

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AI-Generated Summary

TL;DR

A series of sightings of an unidentified object near Cajamarca, Peru, in late 1957 were investigated by the U.S. Air Attache. The object was determined to be the planet Venus, observed during daylight hours using a precision theodolite.

This document is an Air Intelligence Information Report (IR-364-57) dated November 29, 1957, originating from the Office of the Air Attache (OAirA) in Lima, Peru. It details a series of sightings of an unidentified flying object observed by a qualified weather observer at the Weather Observatory of the Compañia Peruana de Servicios Meteorologicos, S.A., located on the continental divide near Cajamarca, Peru, at an altitude of 3750 meters. The observer, using a Zeiss-Recording-Theodolite, reported sightings on October 26, 28, 29, and November 8, 1957. The object was described as white, steel-colored, and gleaming, and was observed to be practically stationary. The observer meticulously recorded the azimuth and elevation angles of the object over several days. The report includes detailed tables of these measurements, noting the Lima time, GMT, azimuth, elevation, and visibility conditions. The investigation concluded that the plotted positions of the object corresponded almost exactly to the position of the planet Venus at the times given. While the report acknowledges that it is rare for Venus to be visible during daylight hours, it notes that the precision instruments used by the observer made such an observation possible. The document includes a Project 10073 Record Card, several supplements to AF Form 112 containing the observation data, a memorandum for the case file dated April 1, 1958, and a press clipping titled 'Venus Most Prominent' by James Stokley, which provides astronomical context for the visibility of Venus during that period. The report was prepared by Lt. Col. Vergil N. Nestor, Air Attache.

Plotted positions indicate obj almost exact position of planet Venus at times given. Although rare that this body could be seen in day time, instruments used could make this possible.

Official Assessment

Plotted positions indicate object almost exact position of planet Venus at times given.

The object was identified as the planet Venus. Although rare for the body to be seen in daylight, the instruments used by the observer made this possible.

Witnesses

  • [illegible]Weather observerCompañia Peruana de Servicios Meteorologicos, S.A.

Key Persons

Organizations

Military Units