Salyut 7

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**Salyut 7**
Mission Insignia

Salyut 7 station

Mission Statistics
Mission name:	Salyut 7
Call sign:	Salyut 7
Launch:	April 19, 1982 19:45:00 UTC Baikonur, U.S.S.R
Reentry:	February 7, 1991
Crews:	6 long duration 4 short duration
Occupied:	816 days
In orbit:	3,216 days
Number of orbits:	51,917
Apogee:	173 mi (278 km)
Perigee:	136 mi (219 km)
Period:	89.2 min
Inclination	51.6 deg
Distance traveled:	~1,308,792,358 mi (~2,106,297,129 km)
Orbital mass:	19,000 kg

Salyut 7 space station

Salyut 7 (Салют-7) was launched on April 19, 1982, the last of the Salyut space station program. It was the back-up vehicle for Salyut 6 and very similar in equipment and capabilities. With delays to the Mir programme it was decided to launch the back-up vehicle as Salyut 7. In orbit the station suffered a number of technical failures though it benefited from the improved payload capacity of the visiting Progress and Soyuz craft and the experience of its crews who improvised many solutions. In September 1983 a fuel line ruptured requiring EVAs by the Soyuz T-10 to repair. It was aloft for four years and two months, during which time it was visited by 10 crews constituting 6 main expeditions and 4 secondary flights (including French and Indian cosmonauts). Also saw two flights of Svetlana Savitskaya making her the second woman in space since 1963 and the first to perform an EVA. 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" though in reality were variants of the TKS spacecraft intended for the cancelled Almaz military space station. They helped engineers develop technology necessary to build Mir. Salyut 7 deorbited on February 7, 1991.

It had two docking ports, one on either end of the station, to allow docking with the Progress unmanned resupply craft, and a wider front docking port to allow safer docking with a Heavy Cosmos module. It carried three solar panels, two in lateral and one in dorsal longitudinal positions, but they now had the ability to mount secondary panels on their sides. Internally, the Salyut 7 carried electric stoves, a refrigerator, constant hot water and redesigned seats at the command console (more like bicycle seats). Two portholes were designed to allow ultraviolet light in, to help kill infections. Further, the medical, biological and exercise sections were improved, to allow long stays in the station. The BST-1M telescope used in Salyut 6 was replaced by an X-ray detection system.

1 Crews and missions
- 1.1 Salyut 7 expeditions
- 1.2 Salyut 7 spacewalks
2 Specifications
3 Visiting spacecraft and crews
4 See also
5 References

[edit] Crews and missions

Salyut7 with docked spacecraft

TKS 3 and Salyut 7

Following up the use of Cosmos 1267 on Salyut 6, the Soviets launched Cosmos 1443 on March 2, 1983, from a Proton SL-13. It docked with the station on March 10, and was used by the crew of Soyuz T-9. It jettisoned its recovery module on August 23, and re-entered the atmosphere on September 19. Cosmos 1686 was launched on September 27, 1985, docking with the station on October 2. It did not carry a recovery vehicle, and remained connected to the station for use by the crew of Soyuz T-14. Ten Soyuz T crews operated in Salyut 7. Only two InterCosmos "guest cosmonauts" worked in Salyut 7. The first attempt to launch Soyuz T-10 was aborted on the launch pad when a fire broke out at the base of the vehicle. The payload was ejected, and the crew was recovered safely.

Salyut 7 had six resident crews.

The first crew, Anatoli Berezovoy and Valentin Lebedev, arrived on May 13 1982 on Soyuz T-5 and remained for 211 days until December 10 1982.
On June 27, 1983 the crew of Vladimir Lyakhov and Alexander Alexandrov arrived on Soyuz T-9 and remained for 150 days, until November 23, 1983.
On February 8 1984 Leonid Kizim, Vladimir Solovyev, and Oleg Atkov began a 237 day stay, the longest on Salyut 7, which ended on October 2, 1984.
Vladimir Dzhanibekov and Viktor Savinykh (Soyuz T-13) arrived at the space station on June 6, 1985.
On September 17, 1985 Soyuz T-14 docked with the station carrying Vladimir Vasyutin, Alexander Volkov, and Georgi Grechko. Eight days later Dzhanibekov and Grechko left the station and returned to Earth after 103 days, while Savinyikh, Vasyutin, and Volkov remained on Salyut 7 and returned to Earth on November 21, 1985 after 65 days.
On May 6, 1986 Soyuz T-15 carrying Leonid Kizim and Vladimir Solovyov docked with the space station. The Soyuz had come from the Mir space station and returned to Mir after 50 days on Salyut.

There were also four visiting missions, crews which came to bring supplies and make shorter duration visits with the resident crews.

[edit] Salyut 7 expeditions

Expedition	Crew	Launch date	Flight up	Landing date	Flight down	Duration (days)
Salyut 7 - EO-1	Anatoli Berezovoy, Valentin Lebedev	May 13, 1982 09:58:05 UTC	Soyuz T-5	December 10, 1982 19:02:36 UTC	Soyuz T-7	211.38
Salyut 7 - EP-1	Vladimir Dzhanibekov, Aleksandr Ivanchenkov, Jean-Loup Chrétien - France	June 24, 1982 16:29:48 UTC	Soyuz T-6	July 2, 1982 14:20:40 UTC	Soyuz T-6	7.91
Salyut 7 - EP-2	Leonid Popov, Aleksandr Serebrov, Svetlana Savitskaya	August 19, 1982 17:11:52 UTC	Soyuz T-7	August 27, 1982 15:04:16 UTC	Soyuz T-5	7.91
Salyut 7 - EO-2	Vladimir Lyakhov, Aleksandr Pavlovich Aleksandrov	June 27, 1983 09:12:00 UTC	Soyuz T-9	November 23, 1983 19:58:00 UTC	Soyuz T-9	149.45
Salyut 7 - EO-3	Leonid Kizim, Vladimir Solovyov, Oleg Atkov	February 8, 1984 12:07:26 UTC	Soyuz T-10	October 2, 1984 10:57:00 UTC	Soyuz T-11	236.95
Salyut 7 - EP-3	Yuri Malyshev, Gennady Strekalov, Rakesh Sharma - India	April 3, 1984 13:08:00 UTC	Soyuz T-11	April 11, 1984 10:48:48 UTC	Soyuz T-10	7.90
Salyut 7 - EP-4	Vladimir Dzhanibekov, Svetlana Savitskaya, Igor Volk	July 17, 1984 17:40:54 UTC	Soyuz T-12	July 29, 1984 12:55:30 UTC	Soyuz T-12	11.80
Salyut 7 - EO-4-1a	Viktor Savinykh	June 6, 1985 06:39:52 UTC	Soyuz T-13	November 21, 1985 10:31:00 UTC	Soyuz T-14	168.16
Salyut 7 - EO-4-1b	Vladimir Dzhanibekov	June 6, 1985 06:39:52 UTC	Soyuz T-13	September 26, 1985 09:51:58 UTC	Soyuz T-13	112.13
Salyut 7 - EP-5	Georgi Grechko	September 17, 1985 12:38:52 UTC	Soyuz T-14	September 26, 1985 09:51:58 UTC	Soyuz T-13	8.88
Salyut 7 - EO-4-2	Vladimir Vasyutin, Alexander Volkov	September 17, 1985 12:38:52 UTC	Soyuz T-14	November 21, 1985 10:31:00 UTC	Soyuz T-14	64.91
Salyut 7 - EO-5	Leonid Kizim, Vladimir Solovyov	March 13, 1986 12:33:09 UTC	Soyuz T-15	July 16, 1986 12:34:05 UTC	Soyuz T-15	125.00 50 on S7

[edit] Salyut 7 spacewalks

Spacecraft	Spacewalker	Start - UTC	End - UTC	Duration	Comments
Salyut 7 - PE-1 - EVA 1	Lebedev & Berezevoi	July 30, 1982, 02:39	July 30, 1982, 05:12	2 h, 33 min	Retrieve experiments
Salyut 7 - PE-2 - EVA 1	Lyakhov & Alexandrov	Nomember 1, 1983, 04:47	Nomember 1, 1983, 07:36	2 h, 50 min	Add solar array
Salyut 7 - PE-2 - EVA 2	Lyakhov & Alexandrov	November 3, 1983, 03:47	November 3, 1983, 06:62	2 h, 55 min	Add solar array
Salyut 7 - PE-3 - EVA 1	Kizim & Solovyov	April 23, 1984, 04:31	April 23, 1984, 08:46	4 h, 20 min	ODU repair
Salyut 7 - PE-3 - EVA 2	Kizim & Solovyov	April 26, 1984, 02:40	April 26, 1984, 07:40	4 h, 56 min	Repair ODU
Salyut 7 - PE-3 - EVA 3	Kizim & Solovyov	April 29, 1984, 01:35	April 29, 1984, 04:20	2 h, 45 min	Repair ODU
Salyut 7 - PE-3 - EVA 4	Kizim & Solovyov	May 3, 1984, 23:15	May 4, 1984, 02:00	2 h, 45 min	Repair ODU
Salyut 7 - PE-3 - EVA 4	Kizim & Solovyov	May 18, 1984, 17:52	May 18, 1984, 20:57	3 h, 05 min	Add solar array
Salyut 7 - VE-4 - EVA 5	Savitskaya & Dzhanibekov	July 25, 1984, 14:55	July 25, 1984, 18:29	3 h, 35 min	First woman EVA
Salyut 7 - PE-3 - EVA 6	Kizim & Solovyov	August 8, 1984, 08:46	August 8, 1984, 13:46	5 h, 00 min	Complete ODU repair
Salyut 7 - PE-4 - EVA 1	Dzhanibekov & Savinykh	August 2, 1985, 07:15	August 2, 1985, 12:15	5 h, 00 min	Augment solar arrays
Salyut 7 - PE-6 - EVA 1	Kizim & Solovyov	May 28, 1986, 05:43	May 28, 1986, 09:33	3 h, 50 min	Test truss, retrieve samples
Salyut 7 - PE-6 - EVA 2	Kizim & Solovyov	May 31, 1986, 04:57	May 31, 1986, 09:57	5 h, 00 min	Test truss

[edit] Specifications

Length - about 16 m
Maximum diameter - 4.15 m
Habitable volume - 90 m³
Weight at launch - 19,824 kg
Launch vehicle - Proton (three-stage)
Orbital inclination - 51.6°
Span across solar arrays - 17 m
Area of solar arrays - 51 m²
Number of solar arrays - 3
Electricity available - 4.5 kW
Resupply carriers - Soyuz-T, Progress, TKS
Number of docking ports - 2
Total manned missions - 12
Total unmanned missions - 15
Total long-duration missions - 6
Number of main engines - 2
Main engine thrust (each) - 2.9 kN

[edit] Visiting spacecraft and crews

(Launched crews. Spacecraft launch and landing dates listed.)

Soyuz T-5 - May 13 - August 27, 1982
- Anatoli Berezovoy
- Valentin Lebedev

Soyuz T-6 - June 24 - July 2, 1982 - Intercosmos Flight
- Vladimir Dzhanibekov
- Aleksandr Ivanchenkov
- Jean-Loup Chrétien - France

Soyuz T-7 - August 19 - December 10, 1982

Soyuz T-8 - April 20 - 22, 1982 - Failed docking

Soyuz T-9 - June 27 - November 23, 1983
- Vladimir Lyakhov
- Alexander Alexandrov

Soyuz T-10-1 - September 26, 1983 - Launch abort
- Vladimir Titov
- Gennady Strekalov

Soyuz T-10 - February 8 - April 11, 1984

TKS 2 - March 4 - August 14, 1983 - Launched unmanned as Cosmos 1443.

Soyuz T-11 - April 3 - October 2, 1984 - Intercosmos Flight
- Yuri Malyshev
- Gennady Strekalov
- Rakesh Sharma - India

Soyuz T-12 - July 17 - 29, 1984

Soyuz T-13 - June 6 - September 26, 1985
- Vladimir Dzhanibekov
- Viktor Savinykh

Soyuz T-14 - September 17 - November 21, 1985

TKS 3 - September, 1985 - February 7, 1991 - Launched unmanned as Cosmos 1686. Featured a high-resolution photo apparatus and optical sensor experiments (infrared telescope and Ozon spectrometer).