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A Strela-2M communication satellite, similar to Kosmos 2251
At 16:56 UTC on 10 February 2009, it collided with Iridium 33, an Iridium satellite, in the first major collision of two satellites in Earth orbit. The Iridium satellite, which was operational at the time of the collision, was destroyed, as was Kosmos-2251.NASA reported that a large amount of debris was produced by the collision.