 Kosmos 2501

Kosmos 2501 ( meaning "Cosmos 2501"), also known as Glonass-K1 No.12L is a Russian navigation satellite which was launched in 2014.The second Glonass-K satellite to be launched, it is the second of two Glonass-K1 spacecraft which will serve as prototypes for the operational Glonass-K2 spacecraft.