Soyuz 19 (ASTP)

USSR

International Flight nº: 57

Earth orbit Flight nº: 54

USSR launch Flight nº: 27

Launch, orbit & landing data:

Designation 08030 / 75065A
Launch date - time 15 Jul 1975 - 12:20:00 UT
Launch site Baikonur, LC1
Launch vehicle  Soyuz 11A511U
OKB name - S/N° Soyuz 7K-TM s/n 75
Basic shape  Sphere-cylinder + 2 wings
Dimension (m) 7.48 long, 2.30 dia
Mass (kg) 6680 kg
Flight Crew Leonov, Aleksei A. (CDR)
Kubasov, Valeri N. (FE)
Call Sign Soyuz (Union)
Backup crew Dzhanibekov V., Andreyev
Earth orbit on Jul 15.7:
   - Perigee / Apogee 186 x 220 km
   - Eccentricity 0.003
   - Inclination 51.78°
   - Period 88.49 min

Docking & landing data:

1th Docking date - time 17 Jul 1975 - 16:04 UT (16:09:09?)
Target spacecraft Apollo 18
Undocking date - time 19 Jul 1975 - 14:52 UT (15:26:12?)
2e Docking date - time 19 Jul 1975 -
Target spacecraft Apollo 18
Undocking date - time 19 Jul 1975 -
Deorbit date - time 21 Jul 1975 - 10:10:21 UT
Landing date - time 21 Jul 1975 - 10:50:51 UT
Landing location 51°N, 66°°
34km NW of Arkalyk
Flight Duration (d:hr:min) 05d 22h 30m 51s (5.94 days)
Nbr orbits 97

Flight Crew

Nr. Surname Given name Job Duration Orbits
1  Leonov  Aleksei Arkhipovich  Commander 5d 22h 30m  97 
2  Kubasov  Valeri Nikolayevich  Flight engineer 5d 22h 30m  97 

Flight


Leonov and Kubasov ready to launch

1e US/USSR docking in space, docking with US-Apollo-spacecraft ASTP at 17.07.1975; docking time 52 hours; exchange of crewmembers at time; material experiments; after separation second short-time docking with Soyuz 19 as the active part; no more crew transfer.
Call Sign: Soyuz (Union ). Backup Crew: Filipchenko, Rukavishnikov. Support Crew: Andreyev, Dzhanibekov, Ivanchenkov, Romanenko. Launch Vehicle: Soyuz 11A511U . Payload: Soyuz ASTP s/n 75 (EPSA). Mass: 6,790 kg. Perigee: 186 km. Apogee: 220 km. Inclination: 51.8 deg. Period: 88.5 min.
Apollo 18 (ASTP) Soyuz 19 (ASTP) - View of launch pad at the Baykonur Cosmodrome showing Soyuz spacecraft - Credit: NASA.
Soyuz ASTP in Orbit Soyuz ASTP in Orbit - Credit: NASA. .
Apollo 18 (ASTP) Soyuz 19 (ASTP) - Mock-ups of USSR Soyuz spacecraft on display at Star City - Credit: NASA.
Summary: Docked with Apollo ASTP. Recovered July 21, 1975 10:51 GMT. Landed 9. 6 km from aim point 87 km NE Arkalyk.

Maneuver Summary:
191 km X 218 km orbit to 185 km X 240 km orbit. Delta V: 7 m/s
185 km X 240 km orbit to 198 km X 223 km orbit. Delta V: 8 m/s
198 km X 223 km orbit to 190 km X 229 km orbit. Delta V: 3 m/s
190 km X 229 km orbit to 218 km X 231 km orbit. Delta V: 8 m/s
Total Delta V: 26 m/s

Astrophilately covers:

Soyuz 19

Launch cancel, signed by crew: Leonov & Kubasov

 ASTP

Speciale docking cancel Baikonur, Apollo-Soyuz

Soyuz 19

Launch cancel "Kosmodrom Baikonur"

 ASTP

Launch cancel Vandenberg

Soyuz 19

Spain tracking station cancel.

 ASTP

Landing cancel Arkalik

Soyuz 19

Launch cancel Baikonur, landing Apollo cancel Houston.

Ref.: #1,#2, #4, #7, #8, #16, #125, #206, #210, #404 - update: 22.12.2025 Home