Progress 39 () was a

Soviet The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...

unmanned

Progress Progress is movement towards a perceived refined, improved, or otherwise desired state. It is central to the philosophy of progressivism, which interprets progress as the set of advancements in technology, science, and social organization effic ...

cargo spacecraft, which was launched in December 1988 to resupply the

Mir EO-4 Mir EO-4 (also called Principal Expedition 4) was the fourth long-duration expedition to the Soviet space station Mir. The expedition began in November 1988, when crew members Commander Aleksandr Volkov and Flight Engineer Sergei Krikalev arrived ...

expedition aboard the

Mir ''Mir'' (, ; ) was a space station operated in low Earth orbit from 1986 to 2001, first by the Soviet Union and later by the Russia, Russian Federation. ''Mir'' was the first modular space station and was assembled in orbit from 1986 to ...

space station.

Launch

Progress 39 launched on 25 December 1988 from the

Baikonur Cosmodrome The Baikonur Cosmodrome is a spaceport operated by Russia within Kazakhstan. Located in the Kazakh city of Baikonur, it is the largest operational space launch facility in terms of area. All Russian Human spaceflight, crewed spaceflights are l ...

in the

Kazakh SSR The Kazakh Soviet Socialist Republic, also known as Soviet Kazakhstan, the Kazakh SSR, KSSR, or simply Kazakhstan, was one of the transcontinental constituent republics of the Soviet Union (USSR) from 1936 to 1991. Located in northern Centr ...

. It used a

Soyuz-U2 The Soyuz-U2 (GRAU index 11A511U2) was a Soviet, later Russian, carrier rocket. It was derived from the Soyuz-U, and a member of the R-7 family of rockets. It featured increased performance compared with the baseline Soyuz-U, due to the use of ...

rocket.

Docking

Progress 39 docked with the aft port of the

Kvant-1 Kvant-1 (; English: Quantum-I/1) (37KE) was the first module to be attached in 1987 to the Mir Core Module, which formed the core of the Soviet space station ''Mir''. It remained attached to ''Mir'' until the entire space station was deorbited i ...

module of Mir on 27 December 1988 at 05:35:10 UTC, and was undocked on 7 February 1989 at 06:45:34 UTC.

Decay

It remained in orbit until 7 February 1989, when it was deorbited. The deorbit burn occurred at around 12:49 UTC and the mission ended at 13:49 UTC.

References

Progress (spacecraft) missions 1988 in the Soviet Union Spacecraft launched in 1988 Spacecraft which reentered in 1989 Spacecraft launched by Soyuz-U rockets {{USSR-spacecraft-stub

Launch

Docking

Decay

See also

References