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Probably explained

Sighting in Parthenay-de-Bretagne, July 1, 2010

Ille-et-Vilaine, Bretagne, France

Sighting on July 1, 2010 in Parthenay-de-Bretagne (Ille-et-Vilaine, France). According to GEIPAN, it was most probably the International Space Station (ISS) (class B).

What happened

At around 11 p.m., a witness noticed a luminous phenomenon crossing the sky from west to east. It moved slowly at a steady speed and made no particular noise.

The GEIPAN had calculated predicted passes of the International Space Station for a news item about the summer 2010 sky, published on its website. Those predictions match what the witness described. The investigation concluded that they had most likely seen the ISS pass overhead, so the case was classified B (probably identified).

Account rewritten by SkyUnknown from the investigation report published by GEIPAN (CNES). The original text and case documents are on the official record.

Date
July 1, 2010
Location
Parthenay-de-Bretagne · town centre
Type of sighting
From the ground
Source classification
B
Explanation
Space station (ISS)

Sources

Summary written by SkyUnknown from the facts published by the source.