It a test to retry the Kurs-NA automatic rendezvous and docking system, the Progress M-021M was released from the International Space Station. at 0858 GMT on 23 April 2014. Issues with the system resulted in a longer than planned approach to the station on a previous docking attempt After two days away from the ISS, after what appeared to be a successful approach a docking was made at 1216 GMT on 25 April 2014.
Progress M-021M has a jaunt away from International Space Station to test rendezvous system
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