An account in Val-d'Oise, France

On Wednesday, November 9, 2011 at 9:05 PM, several people in a car are intrigued by a brief sighting of a blue phenomenon (described as a flash, a lightning bolt, a half circle). Arriving at his home and getting out of the vehicle, one of the passengers observes again for 5 to 7 seconds a particular phenomenon in the sky: the witness describes a large stationary wheel, orange in color and of significant diameter. It disappears instantly. None of the other witnesses saw this second phenomenon at that time. The hypothesis of a Sky Tracker temporarily turned on (perhaps accidentally: the observation lasted only 5 to 10 seconds), and made particularly spectacular because of the fog, seems plausible; but this hypothesis could not be confirmed by the nightclub manager, and was completely refuted by the witness. Given these contradictions, and given the brevity of the observation, GEIPAN classifies this case as "C": lack of reliable information.

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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.