Progress 1

Progress 1

Mission type	Salyut 6 resupply
Operator	OKB-1
COSPAR ID	1978-008A
SATCAT no.	10603
Mission duration	18 days, 18 hours and 20 minutes
Spacecraft properties
Spacecraft	Progress s/n 102
Spacecraft type	Progress 7K-TG
Manufacturer	NPO Energia
Launch mass	7020 kg
Dry mass	6520 kg
Payload mass	2300 kg
Dimensions	7.48 m in length and 2.72 m in diameter
Start of mission
Launch date	20 January 1978, 08:24:40 UTC
Rocket	Soyuz-U s/n E15000-075
Launch site	Baikonur, Site 31/6
Contractor	OKB-1
End of mission
Disposal	Deorbited
Decay date	8 February 1978, 02:45 UTC
Orbital parameters
Reference system	Geocentric orbit
Regime	Low Earth orbit
Perigee altitude	329 km
Apogee altitude	348 km
Inclination	51.66°
Period	91.3 minutes
Epoch	20 January 2020
Docking with Salyut 6
Docking port	Aft
Docking date	22 January 1978, 10:12:14 UTC
Undocking date	6 February 1978, 05:54 UTC
Time docked	14 days, 19 hours and 42 minutes
Cargo
Mass	2300 kg
Pressurised	1300 kg
Fuel	1000 kg
Progress (spacecraft) Progress 2 →

Progress 1 (Russian: Прогресс 1), was a Soviet unmanned Progress cargo spacecraft which was launched in 1978 to resupply the Salyut 6 space station. It was the maiden flight of the Progress spacecraft, and used the Progress 7K-TG configuration. It carried supplies for the EO-1 crew aboard Salyut 6, which consisted of Soviet cosmonauts Yuri Romanenko and Georgy Grechko. The cargo carried by Progress 1 also included equipment for conducting scientific research, and fuel for adjusting the station's orbit and performing manoeuvres.