CLM-004507reported
“First Officer Vallee spotted an object that appeared to be a weather balloon... Duboc saw it in turn and immediately identified that it was not a balloon. It had the shape of a disc, was brown in color, and appeared to undergo variable geometry.”
The COMETA Report: UFOs and Defense - What Should We Prepare For?
SRC-002051 · COMETA Report (1999), Chapter I, pp. 9-10 · PRIMARY SOURCE