Essonne, France · 2011-11-06 · from the GEIPAN archive
On November 6, 2011, at around 1 p.m., a witness notices in the sky the presence of a ball that he describes as the size of a pinhead, orange in color but dull. It seems stationary at a high altitude, but one that remains difficult to assess. The witness looks away for a moment and will not find the object in the sky again. The observation lasted 10 seconds. No other testimony will be collected. The hypothesis of an orange party balloon flying at about 500m seems to explain this observation. Its apparent immobility can be explained on the one hand by the fact that, even if the balloon goes at the speed of the ground wind (30km/h), at 500m that gives an apparent angular displacement speed of about 1°/s, a speed difficult for the human eye to appreciate against a uniform sky background near the zenith, and on the other hand the wind at 500m is not always the same as on the ground. Since helium-filled party balloons generally burst fairly quickly during their ascent to altitude, the sudden disappearance of this balloon is quite normal. This case is therefore classified "B": probable balloon.
On September 17, 2012 at 2:20 PM, a witness notices in the sky a black ball that seems stationary. The witness observed in the sky this black object appearing motionless, fairly low on the h…
the accounts read alike, found by meaning rather than by shared details
A witness observes on September 26, 2009 at 11:11 a.m. a very bright ball of silver color that moves very slowly horizontally in the sky. It disappears instantly. This observation is probabl…
the accounts read alike, found by meaning rather than by shared details
On October 9, 2013 at around 5:45 p.m., two witnesses observed in the sky the presence of a dark flying object whose upper part was ovoid in shape, and the lower part cylindrical. It was at …
the accounts read alike, found by meaning rather than by shared details
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This is an official case file of GEIPAN, the French space agency's unidentified aerospace phenomena office, machine translated from French. The original text and the full investigation file are at geipan.fr. We reproduce it with thanks and remove anything on request.
Anomaly