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Cosmos 2521


Designation 42919 / 17037D
Launch date 23 Jun 2017 / 23 Aug 2017
Country of origin CIS
Mission Military: inspector satellite?
Perigee/Apogee 657/674 km, later 350/369 km
Inclination 97.9°
Period 98 min
Launch vehicle Soyuz 2 #48

This is the inspector satellite released by Cosmos 2519 on on 23 Aug 2017. Russia reported the satellite completed proximity experiments and the returned to its original satellite. The satellite carried a number of distant flying, slow flyby and rendezvous and orbit changes.

Released Cosmos 2523 in October 2017, a target object

End of life

Out of service  
Decay 12 Sep 2019

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