The Salyut program (Russian: Салю́т, IPA: [sɐˈlʲut], Salute or Fireworks) was the first space station program undertaken by the Soviet Union, which consisted of a series of nine space stations launched over a period of eleven years from 1971 to 1982. Intended as a project to carry out long-term research into the problems of living in space and a variety of astronomical, biological and Earth-resources experiments, the program allowed space station technology to evolve from the engineering development stage to long-term research outposts in space. Ultimately, experience gained from the Salyut stations went on to pave the way for multimodular space stations such as Mir and the International Space Station, with each of those stations possessing a Salyut-derived core module at its heart.
The program consisted of a series of six scientific research stations and three military reconnaissance stations, the latter being launched as part of the highly secretive Almaz program. Salyut broke several spaceflight records, including several mission duration records, the first ever orbital handover of a space station from one crew to another, and various spacewalk records. By the time the program concluded, in 1991, it had seen space station technology evolve from basic, single-docking port stations to complex, multi-ported orbital outposts with impressive scientific capabilities, whose technological legacy continues to the present day.
The program was composed of DOS (Durable Orbital Station) civilian stations and OPS (Orbital Piloted Station) military stations. All were adapted from Vladimir Chelomei's original Almaz OPS spaceframe. For the military Orbital Piloted Stations modifications were small, and related to the rear docking port for Soyuz spacecraft. For the civilian DOS Orbital Space Station changes were great, with extra solar panels, rear and front docking ports for Soyuz spacecraft, TKS spacecraft and modules.
Salyut 1 (DOS-1) (Russian: Салют-1; English: Salute 1) was launched April 19, 1971. It was the first space station to orbit Earth. Its first crew launched in Soyuz 10 but were unable to board it due to a failure in the docking mechanism; its second crew launched in Soyuz 11 and remained on board for 23 productive days. A pressure-equalization valve in the Soyuz 11 reentry capsule opened prematurely when the crew returned to Earth, killing all three. Salyut 1 reentered Earth's atmosphere October 11, 1971.
DOS-2 was launched on July 29, 1972. It was similar in design to Salyut 1. The second stage of its Proton rocket failed, which meant that it never reached orbit. It crashed into the Pacific Ocean.
Salyut 2 (OPS-1) (Russian: Салют-2; English: Salute 2) was launched April 4, 1973. Despite its name, the space station was part of the highly classified prototype military space station program Almaz. It was given the designation Salyut 2 to conceal its true nature. Although it launched successfully, within two days the as-yet-unmanned Salyut 2 began losing pressure and its flight control failed; the cause of the failure was likely due to shrapnel piercing the station when the discarded Proton rocket upper stage that had placed it in orbit later exploded nearby. On April 11, 1973, 11 days after launch, an unexplainable accident caused four solar panels to be torn loose from the space station cutting off all power to the space station. Salyut 2 re-entered on May 28, 1973.
Cosmos 557 / DOS-3
Under the designation DOS-3, this Salyut space station launched on May 11, 1973, three days before the launch of Skylab, as part of the Almaz program. Due to errors in the flight control system while out of the range of ground control, the station fired its orbit-correction engines until it consumed all of its fuel. Since the spacecraft was already in orbit and had been registered by Western radar, the Soviets disguised the launch as "Cosmos 557" and quietly allowed it to re-enter Earth's atmosphere and burn up a week later. It was revealed to have been a Salyut station only much later.
Salyut 3 (OPS-2) (Russian: Салют-3; English: Salute 3) was launched on June 25, 1974. It was another Almaz military space station, this one launched successfully. It tested a wide variety of reconnaissance sensors, returning a canister of film for analysis. On January 24, 1975, after the station had been ordered to deorbit, trials of the on-board 23 mm Nudelman aircraft cannon (other sources say it was a Nudelman NR-30 30 mm gun) were conducted with positive results at ranges from 3000 m to 500 m. Cosmonauts have confirmed that a target satellite was destroyed in the test. The next day, the station was ordered to deorbit. Only one of the three intended crews successfully boarded and crewed the station, brought by Soyuz 14; Soyuz 15 attempted to bring a second crew but failed to dock. Nevertheless, it was an overall success. The station's orbit decayed, and it re-entered the atmosphere on January 24, 1975.
Salyut 4 (DOS-4) (Russian: Салют-4; English: Salute 4) was launched on December 26, 1974. It was essentially a copy of the DOS-3, and unlike its ill-fated sibling it was a complete success. Two crews made stays aboard Salyut 4 (Soyuz 17 and Soyuz 18), including one of 63 days duration, and an unmanned Soyuz capsule (Soyuz 20) remained docked to the station for three months, proving the systems' long-term durability. Salyut 4 was deorbited February 2, 1977, and re-entered the Earth's atmosphere on February 3.
Salyut 5 (OPS-3) (Russian: Салют-5; English translation Salute 5) was launched on June 22, 1976. It was the third and last Almaz military space station. Its launch and subsequent mission were both completed successfully, with three crews launching and two (Soyuz 21 and Soyuz 24) successfully boarding the craft for lengthy stays (the second crew on Soyuz 23 was unable to dock and had to abort). Salyut 5 reentered on August 8, 1977. Following Salyut 5 the Soviet Military decided that the tactical advantages were not worth the expense of the program and withdrew. The focus for the later missions was research and prestige.
Salyut 6 (DOS-5) (Russian: Салют-6; English: Salute 6) was launched on September 29, 1977. Although it resembled the previous Salyut stations in overall design, it featured several revolutionary advances including a second docking port where an unmanned Progress cargo spacecraft could dock and refuel the station. From 1977 until 1982 Salyut 6 was visited by five long-duration crews and 11 short-term crews, including cosmonauts from Warsaw Pact countries. Some unconfirmed reports say the station was functionally capable of even more missions and years, but combating the ever-increasing mold in living quarters was becoming impossible, and in practice caused the retirement decision. The very first long-duration crew on Salyut 6 broke a record set on board Skylab, staying 96 days in orbit. The longest flight on board Salyut 6 lasted 185 days. The fourth Salyut 6 expedition deployed a 10-meter radio-telescope antenna delivered by a cargo ship. After Salyut 6 manned operations were discontinued in 1981, a heavy unmanned spacecraft called TKS and developed using hardware left from the canceled Almaz program was docked to the station as a hardware test. Salyut 6 was deorbited July 29, 1982.
Salyut 7 (DOS-6) (Russian: Салют-7; English: Salute 7) was launched on April 19, 1982. It was the back-up vehicle for Salyut 6 and very similar in equipment and capabilities, though several more advanced features were included. It was aloft for eight years and ten months, during which time it was visited by 10 crews constituting 6 main expeditions and 4 secondary flights (including French and Indian cosmonauts). Aside from the many experiments and observations made on Salyut 7, the station also tested the docking and use of large modules with an orbiting space station. The modules were called "Heavy Cosmos modules." They helped engineers develop technology necessary to build Mir. Salyut 7 deorbited on February 7, 1991.
It was planned that two other stations (DOS-7 and DOS-8) would follow. These would be equipped with a total of four docking ports; two at either end of the station and an additional two ports on either side of docking sphere at the front of the station. DOS-7 continued to be developed, becoming the Mir Core Module, featuring upgraded computers and solar arrays, accommodations for two cosmonauts each having their own cabin and six docking ports.
Launched Reentered Days in
Salyut 1 April 19, 1971
October 11, 1971
175 24 3 2 0 18,500 DOS-2 July 29, 1972 July 29, 1972 0 0 0 0 0 18,000 Salyut 2 April 4, 1973
May 28, 1973
54 0 0 0 0 18,500 Kosmos 557 May 11, 1973
May 22, 1973
11 0 0 0 0 19,400 Salyut 3 June 25, 1974
January 24, 1975
213 15 2 1 0 18,500 Salyut 4 December 26, 1974
February 3, 1977
770 92 4 2 1 18,500 Salyut 5 June 22, 1976
August 8, 1977
412 67 4 2 0 19,000 Salyut 6 September 29, 1977
July 29, 1982
1,764 683 33 16 14 19,824 Salyut 7 April 19, 1982
February 7, 1991
3,216 816 26 12 15 18,900
- Proton (rocket) launch vehicle
- International Space Station
- Space station for statistics of occupied space stations
- Soviet Space Stations as Analogs - NASA report (PDF format)
- Mir Hardware Heritage
- Diaries of the Salyut missions
Salyut program Salyut stations (DOS) Almaz stations (OPS) Successors TKS spacecraft Support craftSoyuz · Progress ListsExpeditions · Spaceflights (manned · unmanned) · Visitors · Spacewalks Almaz program Manned stations Unmanned satellitesAlmaz-T · Kosmos 1870 · Almaz 1 · Almaz 2 (not flown) Space stations and habitats Active DefunctSoviet Union
and RussiaUnited States
Cancelled ISS-incorporated DevelopmentalChinaSpace Complex Alpha · Space Complex BravoRussiaOPSEK · LOS Proposed1 Never inhabited 2 Failed launch 3 Part of the Almaz military program Soviet and Russian government manned space programs Active Past Cancelled Spaceflight lists and timelines General Human spaceflightGeneralSalyut
- Spaceflights (manned
- Spacewalks and moonwalks (1965–1999
- Cumulative spacewalk records
Solar System exploration Earth-orbiting satellites Vehicles Launches by rocket type Agencies, companies
Other mission lists
Wikimedia Foundation. 2010.
Look at other dictionaries:
Salyut 1 — (DOS 1) Salyut 1 as seen from the departing Soyuz 11. Station statistics COSPAR ID … Wikipedia
Salyut — /sahl yooht /, n. one of a series of Soviet earth orbiting space stations, first launched in 1971. [ < Russ Salyút lit., SALUTE < F] * * * Any of a series of seven Soviet space stations (of two designs) placed into Earth orbit in the 1970s and… … Universalium
Salyut 7 — Infobox Space station station = Salyut 7 station station image size = station image caption = Salyut 7 photographed following the undocking of Soyuz T 13, September 25, 1985 extra extra image size = extra image caption = insignia = Salyut… … Wikipedia
Salyut 5 — Infobox Space station station = Salyut 5 (OPS 3) station station image size = station image caption = extra extra image size = extra image caption = insignia = Salyut insignia.jpg insignia size = insignia caption = sign = Salyut 5 crew = 6 launch … Wikipedia
Salyut 3 — Infobox Space station station = Salyut 3 (OPS 2) station station image size = station image caption = extra extra image size = extra image caption = insignia = Salyut insignia.jpg insignia size = 160px insignia caption = sign = Salyut 3 crew = 3… … Wikipedia
Salyut 2 — Infobox Space station station = Salyut 2 (OPS 1) station station image size = station image caption = OPS 1 Almaz station assembling extra extra image size = extra image caption = insignia = Salyut insignia.jpg insignia size = 160px insignia… … Wikipedia
Salyut — /ˈsæljut/ (say salyooht) noun the Soviet crewed space station program; seven Salyut space stations were orbited between 1971 and 1982 … Australian English dictionary
Buran program — This article is about the Buran space program in general. For specific information about the spacecraft, see Buran (spacecraft). For other uses, see Buran (disambiguation). Buran, 1989. The Buran (Russian: Буран, IPA: … Wikipedia
Soviet space program — The Soviet space program consisted of initiatives within the Soviet Union by competing design groups. Being primarily a ownage military program, it was classified. Sergey Korolyov (also transliterated as Korolev) was the head of the principal… … Wikipedia
Shuttle-Mir Program — The Shuttle ndash;Mir Program was a collaborative space program between Russia and the United States, which involved American Space Shuttles visiting the Russian space station Mir , Russian cosmonauts flying on the shuttle and American astronauts … Wikipedia