Soyuz 37

USSR

International Flight nº: 75

Earth orbit Flight nº: 72

USSR launch Flight nº: 44

Interkosmos-6 flight

Launch & orbit data:

Designation	11905 / 80064A
Launch date - time	23 Jul 1980 - 18:33:03 UT
Launch site	Baikonur, LC1
Launch vehicle	Soyuz 11A511U
OKB name - S/Nº	Soyuz 7K-T s/n 53
Basic shape	Sphere-cylinder + 2 wings
Dimension (m)	7.5 long, 2.3 to 2.72 dia
Mass (kg)	6800? kg
Flight Crew (EP-8)	Gorbatko, Viktor V. (CDR) Tuân, Pham (CR)
Call Sign	Terek (Terek River)
Backup crew	Bykovsky V., Liem Bui Thanh
Earth orbit on Jul 23.8:
- Perigee / Apogee	190 x 272 km
- Eccentricity	0.006
- Inclination	51.58°
- Period	89.06 min

Docking & landing data:

Docking date - time	24 Jul 1980 - 20:02 UT
Target spacecraft/port	Salyut 6/aft
Undocking date - time	01 Aug 1980 - 16:43 UT
Redocking date - time	01 Aug 1980 - 18:20 UT
Target spacecraft/port	Salyut 6/Fwd
Undocking date - time	11 Oct 1980 - 06:30 UT
Landing date - time	11 Oct 1980 - 09:49:57 UT
Landing location	46° N, 69° E
Flight Duration (d:hr:min)	79d 15h 16m 54s (79.64 days)
Nbr orbits
Landing crew	Popov, Ryumin (crew S-35)

Launch Crew

Nr.	Surname	Given name	Job	Duration	Orbits
1	Gorbatko	Viktor Vasiliyevich	Commander	7d 20h 42m	124
2	Pham	Tuân	Research cosm. - Vietnam	7d 20h 42m	124

Gorbatko and Tuân Pham landed with Soyuz 36 on 31 Jul 1980

Mission details:

Launch from Baikonur; landing with Soyuz 36-capsule (31 Jul 1980) 180 km southeast of Dzheskasgan; sixth Intercosmos-mission; docking on Salyut 6; photography of Earth surface; comprehensive test of lungs-function.
Manned two crew. Transported to the Salyut-6 station the sixth international crew under the Intercosmos programme, comprising V V Gorbatko (USSR) and Pham Tuan (Viet Nam), to conduct scientific research and experiments.
Soyuz 37 docked with Soyuz 36 - Salyut 6 (2nd airlock) on 1980 July 24 at 20h 02m.
They returned to Earth in Soyuz 36, unlocking 1980 Jul 31 at llh 55m.
Soyuz 37 (piloted by Soyuz 35 crew) then undocked from 2nd airlock on 1980 Aug 1.70 and re-attached to lst airlock. Soyuz 37 landed with Soyuz 35 crew, with a manned dura- tion record of 184d 20h 12m.

Closeup of the engines of Salyut 6 as displayed in Moscow in 1981.

Astrophilately covers:

Launch cancel Baikonur, special Vietnam cancel: 250780, signed by crew: Gorbatko and Pham Tuan.

Cosmic Mail: Cover on board of Salyut 6, with five-side Salyut boardcancel, Vietnam and Russian board-cancel: 290780, signed by the crew.

Vietnam docking cancel: 250780, 1e undocking and redocking cancel: 010880, signed by crew: Gorbatko and Pham Tuan.

Undocking cancel 111080, signed by the crew Popov and Ryumin.

Cosmic Mail: Cover take with Soyuz 35 (launch 09.041980) to Salyut 6, with five-side Salyut boardcancel.
Special Hungarian and Russian cancel 28.5.80 signed by Kubasov and Farkas
Signed by Soyuz T-2: Malyshev and Aksyanov
board cancel Vietnam 290780, signed by Gorbatko and Pham Tuan
Cuban board cancel (20091980), signed by Soyuz 38 cosmonauts: Romanenko and Mendez
Back with Soyuz 37 and landing on 11.10.1980 with the cosmonauts Popov and Ryumin after a record flight of 185 days in space.

Ref.: #1, #2, #4, #7, #8, #16, #125, #206, #210 - update: 22.12.18

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