Progress 5
A Progress 7K-TG spacecraft
Mission typeSalyut 6 resupply
COSPAR ID1979-022A
SATCAT no.11292[1]
Mission duration24 days
Spacecraft properties
SpacecraftProgress s/n 104
Spacecraft typeProgress 7K-TG[2]
ManufacturerNPO Energia
Launch mass7020 kg
Dry mass6520 kg
Payload mass2500 kg
Dimensions7.48 m in length and
2.72 m in diameter
Start of mission
Launch date12 March 1979, 05:47:28 UTC[1]
RocketSoyuz-U s/n Ye15000-162
Launch siteBaikonur, Site 31/6
End of mission
Decay date5 April 1979, 01:04 UTC[3]
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Perigee altitude189 km
Apogee altitude256 km
Period88.8 minutes
Epoch12 March 1979
Docking with Salyut 6
Docking portAft[4]
Docking date14 March 1979, 07:19:21 UTC
Undocking date3 April 1979, 16:10:00 UTC
Time docked20.4 days
Mass2500 kg

Progress 5 (Russian: Прогресс 5), was a Soviet unmanned Progress cargo spacecraft which was launched in 1979 to resupply the Salyut 6 space station. Served as a receptacle for contaminated fuel from the damaged Salyut 6 propulsion system.


Progress 5 was a Progress 7K-TG spacecraft. The fifth of forty three to be launched, it had the serial number 104.[5][6] The Progress 7K-TG spacecraft was the first generation Progress, derived from the Soyuz 7K-T and intended for uncrewed logistics missions to space stations in support of the Salyut programme. On some missions the spacecraft were also used to adjust the orbit of the space station.[7]

The Progress spacecraft had a dry mass of 6,520 kilograms (14,370 lb), which increased to around 7,020 kilograms (15,480 lb) when fully fuelled. It measured 7.48 metres (24.5 ft) in length, and 2.72 metres (8 ft 11 in) in diameter. Each spacecraft could accommodate up to 2,500 kilograms (5,500 lb) of payload, consisting of dry cargo and propellant. The spacecraft were powered by chemical batteries, and could operate in free flight for up to three days, remaining docked to the station for up to thirty.[7]


Progress 5 launched on 12 March 1979 from the Baikonur Cosmodrome in the Kazakh Soviet Socialist Republic. It used a Soyuz-U rocket.[2]


Progress 5 docked with Salyut 6 on 14 March 1979 at 07:19:21 UTC.[8]


It remained in orbit until 5 April 1979, when it was deorbited. The deorbit burn occurred at 01:04 UTC.

See also


  1. ^ a b "Launchlog". Jonathan's Space Report. Retrieved 23 December 2017.
  2. ^ a b "Progress 1 - 42 (11F615A15, 7K-TG)". Gunter's Space Page. Retrieved 23 December 2017.
  3. ^ "Progress 5". NASA. Retrieved 23 December 2017. Public Domain This article incorporates text from this source, which is in the public domain.
  4. ^ "Cargo spacecraft "Progress-5"". Manned Astronautics figures and facts. Archived from the original on 10 September 2007.
  5. ^ Krebs, Gunter. "Progress 1 - 42 (11F615A15, 7K-TG)". Gunter's Space Page. Retrieved 26 November 2010.
  6. ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 26 November 2010.
  7. ^ a b Hall, Rex D.; Shayler, David J. (2003). Soyuz: A Universal Spacecraft. Springer-Praxis. pp. 239–250. ISBN 1-85233-657-9.
  8. ^ "Salyut 6". Astronautix. Retrieved 23 December 2017.