Seine-et-Marne, France · 2015-03-05 · from the GEIPAN archive
On March 5, 2015 at 7:13 a.m., a witness at Longueville station is intrigued by the shape of an airplane contrail. As the witness clearly saw, this contrail is rather exceptional. GEIPAN submitted the photograph to Météo-France experts: "This is indeed a condensation trail that, after its formation, was deformed by the turbulence prevailing at the place where it was created. Very agitated zones can indeed exist in clear sky (this is called 'clear-air turbulence'). These zones are feared by pilots because they are difficult to predict, are not visible on radar, and are the site of violent phenomena that force crews to change flight level to preserve passenger comfort. Such a photo with such marked sinuosities is however a first for us. This rare case is classified 'A' observation of a condensation trail from the Airbus A319 of flight AF7614 Marseille-Lille (see Flight Radar map at 7:13 a.m. local time), strongly disturbed by atmospheric turbulence. Attachments: Flightradar data, Météociel ground data, at Melun.
What stood out: moving in formationphotographed
2012 observation case reported to GEIPAN in 2015. On August 31, 2012, a passenger in a car driving from Chartres (28) to Caen (14) is intrigued by the presence of a very bright yellow-fire c…
both described moving in formation · photographed · 113 km away
On September 6, 2015 at 12:15 AM, a witness was driving between Airvault (79) and Viennay (79) when he observed the silent movement of 8 to 9 lights in a clear sky. They first formed two dif…
both described moving in formation · photographed · 335 km away
Two witnesses observe, several evenings in a row, a luminous phenomenon in the sky toward the west-northwest. This fixed light sets slowly. They take photographs. This observation case owes …
both described moving in formation · photographed · 243 km away
On April 14, 2016, a witness, a farmer by profession, leaves his home accompanied by his father to carry out agricultural work on his land near the hamlet of Proulieu (01). The observation b…
both described moving in formation · photographed · 332 km away
On February 6, 2017 at around 8:45 PM, a female driver noticed a very intense light in the sky. When she got home, the witness continued to see this light, stationary. She observed it with b…
both described moving in formation · photographed · 468 km away
On August 29, 2013 at 7:45 p.m., a motorist is surprised to notice two luminous phenomena not far from the setting sun. He takes the time to stop to photograph the phenomenon. This testimony…
both described moving in formation · photographed · 468 km away
On June 29, 2014, from 9:30 PM, a witness is intrigued by the straight-line passage in the sky of a white aircraft he does not recognize: the witness sees no condensation trail, no wings, no…
the accounts read alike, found by meaning rather than by shared details
On August 22, 2014 at 1:30 PM, two witnesses were intrigued by the movements of several bright white dots several kilometers away in the sky. Only one testimony was collected. The attached M…
the accounts read alike, found by meaning rather than by shared details
This observation made on January 11, 2014 at 4:50 p.m. and the associated photograph has all the characteristics of an airplane contrail observed at sunset. See on this subject information f…
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