GEIPAN Public Archive and Case Database

GEIPAN's methodology involves receipt of testimony (often via gendarmerie), creation of a file, initial analysis, full investigation when warranted, classification, anonymization, and public release. Investigations draw on experts in astronomy, meteorology, aviation, and other fields. The vast majority of cases are resolved as known phenomena (aircraft, satellites, balloons, atmospheric effects, or hoaxes). The small percentage of D-class cases remain unexplained due to limited data or unusual characteristics but are not attributed to extraterrestrial origins or extraordinary technology. The program explicitly states it uses only recognized scientific knowledge without speculation.