Progress M-51

Progress M-51 departing the ISS.
Mission type	ISS resupply
Operator	Roskosmos
COSPAR ID	2004-051A
SATCAT no.	28503
Mission duration	77 days
Spacecraft properties
Spacecraft type	Progress-M s/n 351
Manufacturer	RKK Energia
Start of mission
Launch date	23 December 2004, 22:19:34 UTC
Rocket	Soyuz-U
Launch site	Baikonur, Site 1/5
End of mission
Disposal	Deorbited
Decay date	9 March 2005, 17:03:11 UTC
Orbital parameters
Reference system	Geocentric
Regime	Low Earth
Perigee altitude	351 km
Apogee altitude	356 km
Inclination	51.6°
Period	92.0 minutes
Epoch	23 December 2004
Docking with ISS
Docking port	Zvezda aft
Docking date	25 December 2004, 23:57:45 UTC
Undocking date	27 February 2005, 16:06:30 UTC
Time docked	64 days
Cargo
Mass	2500 kg
Progress ISS Resupply ← Progress M-50 Progress M-52 →

Progress M-51 (Russian: Прогресс М-51), identified by NASA as Progress 16P, was a Progress spacecraft used to resupply the International Space Station. It was a Progress-M 11F615A55 spacecraft, with the serial number 351.^[1]

Progress M-51 was launched by a Soyuz-U carrier rocket from Site 1/5 at the Baikonur Cosmodrome. Launch occurred at 22:19:34 UTC on 23 December 2004.^[1]

The spacecraft docked with the aft port of the Zvezda module at 23:57:45 UTC on 25 December 2004.^[2][3] It remained docked for 64 days before undocking at 16:06:30 UTC on 27 February 2005.^[2] to make way for Progress M-52^[4] Between undocking and deorbit, Progress M-51 was used for a series of tests. It was deorbited at 16:17:00 UTC on 9 March 2005.^[2] The spacecraft burned up in the atmosphere over the Pacific Ocean, with any remaining debris landing in the ocean at around 17:03:11 UTC.^[2][5]

Progress M-51 carried supplies to the International Space Station, including food, water and oxygen for the crew and equipment for conducting scientific research.

• List of Progress flights
• Uncrewed spaceflights to the International Space Station