Soyuz 10

Launch, orbit & landing data: Designation  05172 / 71034A Launch date - time  22 Apr 1971 - 23:54:06 UT Launch site  Baikonur, LC1 Launch vehicle  Soyuz 11A511 (#25) OKB name - S/N°  Soyuz 7K-T s/n 31 Basic shape  Sphere-cylinder + 2 wings Dimension (m)  7.5 long, 2.2 dia Mass (kg)  6575? Flight Crew  Shatalov, Vladimir A. (CDR) Yelisyev, Alexei S. (FE) Rukavishnikov, Nikolai N. (CR) Call Sign  Granit (Granite) Backup crew  Leonov, Kubasov, Kolodin Earth orbit on Apr 23.7:    - Perigee / Apogee  209 x 258 km    - Eccentricity  0.004    - Inclination  51.60°    - Period  89.11 min

Docking date - time  24 Apr 1971 - 01:47 UT Target spacecraft  Salyut 1 Undocking date - time  24 Apr 1971 - 04:18 UT 2e Docking date - time  24 Apr 1971 - 05:47 UT Target spacecraft  Salyut 1 Undocking date - time  24 Apr 1971 - 07:17 UT (unable to hard dock) Deorbit date - time  24 Apr 1971 - 22:59 UT Landing date - time  24 Apr 1971 - 23:40 UT Landing location  51°N, 72°E 120 km NW Karaganda Flight Duration (d:hr:min)  01d 23h 45min 54s (1.99 days) Nbr orbits

Flight Crew

Soyuz 7K-T,original. Soyuz 10 or 11

Flight:

• 1st docking with unmanned spacestation "Salyut 1", which had been launched 3 days before; no transfer of cosmonauts into the spacestation because of technical problems; separating after 5,5 hours.
  1st night landing in the aera of human spaceflights.
• Soyuz 10 docked with Salyut 1 from Apr 24.07 to Apr 24.30.
• The crew were unable to enter the station due to a faulty hatch on their own spacecraft. When Shatalov tried to undock from the Salyut, the jammed hatch impeded the docking mechanism, preventing undocking. After several attempts he was able to undock and land.
• During the landing, the Soyuz air supply became toxic, and Rukavishnikov (much like the case of Vance Brand during the Apollo ASTP return) was overcome and became unconscious.

Astrophilately covers:

Launch cancel Magadan.

Launch cancel Tartu.

Launch cancel Moscou, signed by crew: Rukavishnikov, Shatalov and Yeliseyev

Docking cancel Tartu.

Return to Earth cancel Moscou.