 Progress M-21M undocking from the ISS during the 2nd Kurs system test on 23 April 2014. | |
| Mission type | ISS resupply |
|---|---|
| Operator | Roskosmos |
| COSPAR ID | 39456 |
| SATCAT no. | 2013-069A |
| Mission duration | 196 days |
| Spacecraft properties | |
| Spacecraft type | Progress-M s/n 421 |
| Manufacturer | RKK Energia |
| Launch mass | 7250 kg |
| Start of mission | |
| Launch date | 25 November 2013, 20:53:06 UTC |
| Rocket | Soyuz-U |
| Launch site | Baikonur, Site 31/6 |
| End of mission | |
| Disposal | Deorbited |
| Decay date | 9 June 2014, 17:23 UTC |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Inclination | 51.6° |
| Epoch | 25 November 2013 |
| Docking with ISS | |
| Docking port | Zvezda aft |
| Docking date | 29 November 2013, 22:30:20 UTC |
| Undocking date | 23 April 2014, 08:58 UTC |
| Time docked | 145 days |
| Docking with ISS | |
| Docking port | Zvezda aft |
| Docking date | 25 April 2014, 12:13 UTC |
| Undocking date | 9 June 2014, 13:29 UTC |
| Time docked | 45 days |
| Cargo | |
| Mass | 2398 kg |
Progress ISS Resupply | |
Progress M-21M (Russian: Прогресс М-21М), identified by NASA as Progress 53P, was a Progress spacecraft used by Roskosmos to resupply the International Space Station (ISS) during 2013.[1] Progress M-21M was built by RKK Energia.