Soyuz TM-20

The Soyuz-TM crew transports (T – транспортный – Transportnyi – meaning transport, M – модифицированный – Modifitsirovannyi – meaning modified) were fourth generation (1986–2002) Soyuz spacecraft used for ferry flights to the Mir and ISS space stations. It added to the Soyuz-T new docking and rendezvous, radio communications, emergency and integrated parachute/landing engine systems. The new Kurs rendezvous and docking system permitted the Soyuz-TM to maneuver independently of the station, without the station making "mirror image" maneuvers to match unwanted translations introduced by earlier models' aft-mounted attitude control.

Soyuz TM-20
Spacecraft properties

Mission type	Mir crew transport
Operator	Rosaviakosmos
COSPAR ID	1994-063A
SATCAT no.	23288
Mission duration	169 days, 5 hours, 21 minutes, 35 seconds
Orbits completed	~2,760


Spacecraft	Soyuz 7K-STM No.69[1]
Spacecraft type	Soyuz-TM
Manufacturer	RKK Energia
Launch mass	7,170 kilograms (15,810 lb)


Crew
Crew size	3
Members	Aleksandr Viktorenko Yelena Kondakova
Launching	Ulf Merbold
Landing	Valeri Polyakov
Callsign	Ви́тязь (Vityaz' – Knight)


Start of mission
Launch date	October 3, 1994, 22:42:30 (1994-10-03UTC22:42:30Z) UTC[1]
Rocket	Soyuz-U2
Launch site	Baikonur 1/5


End of mission
Landing date	March 22, 1995, 04:04:05 (1995-03-22UTC04:04:06Z) UTC
Landing site	50.52°N 67.35°E / 50.52; 67.35


Orbital parameters
Reference system	Geocentric
Regime	Low Earth
Perigee altitude	392 kilometres (244 mi)
Apogee altitude	394 kilometres (245 mi)
Inclination	51.6 degrees
Period	92.42 minutes
Epoch	3 November 1994[2]


Docking with Mir
Docking port	Core forward
Docking date	6 October 1994, 00:28:15 UTC
Undocking date	22 March 1995, 00:43:08 UTC

Soyuz programme (Crewed missions)

Soyuz TM-20 was the twentieth expedition to the Russian Space Station Mir.

Mir as seen from Space Shuttle Discovery during STS-63, with Soyuz TM-20 seen at the top

Crew


Position	Launching crew	Landing crew
Commander	Aleksandr Viktorenko Fourth and last spaceflight
Flight Engineer	Yelena Kondakova First spaceflight
Research Cosmonaut	Ulf Merbold Third and last spaceflight	Valeri Polyakov Second and last spaceflight

Mission highlights

20th expedition to Mir.

Carried 10 kg of equipment for use by Merbold in ESA's month-long Euromir 94 experiment program. During automatic approach to Mir's front port, the spacecraft yawed unexpectedly. Viktorenko completed a manual docking without additional incident.

References

McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 9 November 2013.
McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 9 November 2013.

External links

Spaceflight Mission Report

Soyuz programme

Main topics

Past missions
(by spacecraft type)

Soyuz 7K-OK (1966–1970)	Kosmos 133† Soyuz 7K-OK No.1† (uncrewed) Kosmos 140 Soyuz 1† Kosmos 186 188 212 213 238 Soyuz 2 (uncrewed) 3 4 5 6 7 8 9
Soyuz 7K-L1 (1967–1970) (Zond lunar programme)	Kosmos 146 154† Zond 1967A† 1967B† Zond 4 1968A† 1968B† 5 6 1969A† Zond-M 1† M 2† Zond 7 8 9 10
Soyuz 7K-L1E (1969–1970)	Soyuz 7K-L1E No.1† Kosmos 382
Soyuz 7K-LOK (1971–1972)	Soyuz 7K-LOK No.1† No.2†
Soyuz 7K-OKS (1971)	Soyuz 10† 11†
Soyuz 7K-T (1972–1981)	Kosmos 496 573 Soyuz 12 Kosmos 613 Soyuz 13 Kosmos 656 Soyuz 14 15† 17 18a† 18 20 (uncrewed) 21 23† 24 25† 26 27 28 29 30 31 32 (uncrewed landing) 33† 34 (uncrewed launch) 35 36 37 38 39 40
Soyuz 7K-TM (1974–1976)	Kosmos 638 672 Soyuz 16 19 (Apollo-Soyuz) 22
Soyuz 7K-S (1974–1976)	Kosmos 670 772† 869†
Soyuz-T (1978–1986)	Kosmos 1001† 1074 Soyuz T-1 (uncrewed) T-2 T-3 T-4 T-5 T-6 T-7 T-8† T-9 T-10a† T-10 T-11 T-12 T-13 T-14 T-15
Soyuz-TM (1986–2002)	Soyuz TM-1 (uncrewed) TM-2 TM-3 TM-4 TM-5 TM-6 TM-7 TM-8 TM-9 TM-10 TM-11 TM-12 TM-13 TM-14 TM-15 TM-16 TM-17 TM-18 TM-19 TM-20 TM-21 TM-22 TM-23 TM-24 TM-25 TM-26 TM-27 TM-28 TM-29 TM-30 TM-31 TM-32 TM-33 TM-34
Soyuz-TMA (2002–2012)	Soyuz TMA-1 TMA-2 TMA-3 TMA-4 TMA-5 TMA-6 TMA-7 TMA-8 TMA-9 TMA-10 TMA-11 TMA-12 TMA-13 TMA-14 TMA-15 TMA-16 TMA-17 TMA-18 TMA-19 TMA-20 TMA-21 TMA-22
Soyuz-TMA-M (2010–2016)	Soyuz TMA-01M TMA-02M TMA-03M TMA-04M TMA-05M TMA-06M TMA-07M TMA-08M TMA-09M TMA-10M TMA-11M TMA-12M TMA-13M TMA-14M TMA-15M TMA-16M TMA-17M TMA-18M TMA-19M TMA-20M
Soyuz MS (2016–present)	Soyuz MS-01 MS-02 MS-03 MS-04 MS-05 MS-06 MS-07 MS-08 MS-09 MS-10† MS-11 MS-12 MS-13 MS-14 (uncrewed test flight) MS-15 MS-16

Current missions

Soyuz MS-17

Future missions

2021
- MS-18
- MS-19
- MS-20

Uncrewed missions are designated as Kosmos instead of Soyuz; exceptions are noted "(uncrewed)".
The † sign designates failed missions. Italics designates cancelled missions.

Human spaceflights to Mir
1986–1990	Soyuz T-15 Soyuz TM-2 Soyuz TM-3 Soyuz TM-4 Soyuz TM-5 Soyuz TM-6 Soyuz TM-7 Soyuz TM-8 Soyuz TM-9 Soyuz TM-10 Soyuz TM-11
1991–1995	Soyuz TM-12 Soyuz TM-13 Soyuz TM-14 Soyuz TM-15 Soyuz TM-16 Soyuz TM-17 Soyuz TM-18 Soyuz TM-19 Soyuz TM-20 STS-63 Soyuz TM-21 STS-71 Soyuz TM-22 STS-74
1996–2000	Soyuz TM-23 STS-76 Soyuz TM-24 STS-79 STS-81 Soyuz TM-25 STS-84 Soyuz TM-26 STS-86 STS-89 Soyuz TM-27 STS-91 Soyuz TM-28 Soyuz TM-29 Soyuz TM-30

Shuttle–Mir program
Spacecraft	Space Shuttle Mir Soyuz
Missions	STS-60 STS-63 Soyuz TM-21 STS-71 STS-74 STS-76 STS-79 STS-81 STS-84 STS-86 STS-89 STS-91
Increments	Thagard Lucid Blaha Linenger Foale Wolf Thomas

← 1993 · Orbital launches in 1994 · 1995 →

Payloads are separated by bullets ( · ), launches by pipes ( | ). Crewed flights are indicated in bold text. Uncatalogued launch failures are listed in italics. Payloads deployed from other spacecraft are denoted in brackets.

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Soyuz TM-20

Crew

Mission highlights

See also

References

External links