On Sunday, December 18, 2016 at 9:05 PM, three people on a public square observe the silent movement of a very bright phenomenon in the night sky. This intense white light seems to stop above a building and then quickly departs again. The light intensity decreases and the UAP disappears heading North, hidden by fog. The observation lasts about one minute. Only one testimony is collected in 2017. It is probable that the witness saw a Thai lantern: the indications of shape (rounded) and glow (very bright white) are compatible. The UAP arrives from the NE, like the prevailing wind that evening measured at 15 km: see the weather report on Infoclimat. The fact that the UAP did not have a regular trajectory (stop, change of trajectory, acceleration) results from the variable characteristics of the wind current in a valley near a major river. A weekend night (moreover during Christmas holidays) is favorable for festive events such as lantern releases. Consequently, GEIPAN classifies this case as B: probable observation of a Thai lantern.
Aveyron, France · 2016-12-18 · from the GEIPAN archive
An account in Aveyron, France
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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.