Unexplained yellow light point over Nice

Summary

In April 1997, a witness in Nice watched from his office as a yellow light point moved slowly from south to north over 20 to 25 minutes. The testimony did not reach GEIPAN until 2009. The initial hypothesis pointed to a high-altitude balloon, but the south-westerly winds recorded that day did not match the observed trajectory. With no other witnesses, no additional data, and a long elapsed time, the case was classified as C — insufficient information to determine its origin.