MEXICO.

Millions of residents were outdoors, many with consumer video cameras pointed at the sky, watching the rare astronomical event. During the period of totality and the moments immediately surrounding it, a small metallic, disc-shaped object was filmed by numerous independent observers in different parts of the city, in different camera frames, and from different vantages.

Investigative journalist Jaime Maussan, then producer of the program 60 Minutos, made a televised appeal for any footage of unusual objects during the eclipse. Within weeks, dozens of separate videotapes were submitted. Researchers including Lee Elders and the Genesis III group attempted to triangulate the object's position from multiple synchronized recordings. Their analyses suggested the object was a single physical body filmed from multiple ground locations rather than a camera artefact, balloon, or aircraft.

In the years following the eclipse, Mexico saw an extended wave of urban UFO sightings, particularly over Mexico City and surrounding states. Mexican Air Force pilots subsequently filmed multi-object infrared returns over Campeche on March 5, 2004; the case was officially released by Mexico's Secretariat of National Defense, with then-Defence Secretary General Clemente Vega Garcia confirming the recordings were genuine and unexplained.

The 1991 eclipse event is significant for the breadth of independent imagery, the synchronization advantage of the eclipse moment (everyone was already filming), and the cultural resonance with pre-Columbian Mexican prophecies of "Sixth Sun" disclosure that some local commentators highlighted. Skeptical analyses have pointed to the planet Venus as the likely identification for some of the recordings; however, the analysis of object motion across separate frames is inconsistent with a planetary object for at least a subset of the videos.