Progress M-23M

Progress M-23M (Russian: Прогресс М-23М), identified by NASA as Progress 55P, is a Progress spacecraft used by Roskosmos to resupply the International Space Station (ISS) during 2014.^[2] Progress M-23M was launched on a six-hours rendezvous profile towards the ISS. The 23rd Progress-M 11F615A60 spacecraft to be launched, it had the serial number 427 and was built by RKK Energia.

Progress M-23M

Night time view of Progress M-23M docked at the ISS.
Mission type	ISS resupply
Operator	Roskosmos
COSPAR ID	2014-018A
SATCAT no.	39648
Mission duration	113 days
Spacecraft properties
Spacecraft type	Progress-M s/n 427
Manufacturer	RKK Energia
Launch mass	7280 kg
Start of mission
Launch date	9 April 2014, 15:26:27 UTC[1]
Rocket	Soyuz-U
Launch site	Baikonur, Site 1/5
End of mission
Disposal	Deorbited
Decay date	31 July 2014, 22:42 UTC
Orbital parameters
Reference system	Geocentric
Regime	Low Earth
Perigee altitude	193 km
Apogee altitude	245 km
Inclination	51.66°
Period	88.59 minutes
Epoch	9 April 2014
Docking with ISS
Docking port	Pirs
Docking date	9 April 2014, 21:14 UTC
Undocking date	21 July 2014, 21:44 UTC
Time docked	103 days
Cargo
Mass	2383 kg
Pressurised	1215 kg (dry cargo)
Fuel	880 kg
Gaseous	48 kg
Water	420 kg
Progress ISS Resupply ← Progress M-22M Progress M-24M →

Launch

The spacecraft was launched on 9 April 2014 at 15:26:27 UTC from the Baikonur Cosmodrome in Kazakhstan.^[3]

Docking

Progress M-23M docked with the Pirs docking compartment on 9 April 2014 at 21:14 UTC, less than six hours after launch.

Cargo

The Progress spacecraft carries 2383 kg of cargo and supplies to the International Space Station.^[4]

Undocking and Reentry

Progress M-23M undocked from the ISS on 21 July 2014, and was deorbited on 31 July after participating in the Radar-Progress experiment.