Expedition EO-4

Crew & mission data: No.: 1 2 3 Exp.crew:  Volkov, Aleksandr  Krikalyov, Sergei  Polyakov, Valeri Job:  CDR  Flight Engineer  Doctor cosmonaut Launch vehicle:  Soyuz TM-7  Soyuz TM-7  from EO-03 crew Docking date/time:  28 Nov 1988 - 17:15  28 Nov 1988 - 17:15   - Undocking date/time:  26 Apr 1989 - 23:28:01  26 Apr 1989 - 23:28:01  26 Apr 1989 - 23:28:01 Landing vehicle:  Soyuz TM-7  Soyuz TM-7  Soyuz TM-7 Mir-mission duration:  151d 11h 09m?  151d 11h 09m?  240d 22h 36m? Orbits:  2396?  2396?  3812?

EVA data:

Mission details:

• Mir Expedition EO-04
• Following a two day solo flight the Soyuz docked with the MIR/Kvant-complex on 28 Nov 1988. Scientific work with third resident crew. Volkov and Krikalyov together with Polyakov became the fourth resident crew.
  
  
  
• EVA by Volkov and Chrétien on 09 Dec 1988 (5h 57m), installing the 240 kg French ERA experimental deployable structure and a panel of material samples. Chrétien became the first non-American and non-Soviet cosmonaut to perform a spacewalk.
• Progress-39 docked on 27 Dec 1988 at 05:35 UT.
• Progress-39 undocked on 07 Feb 1989 at 06:45 UT, loaded with refuse and surplus equipment. It was made to reenter over the Pacific Ocean and was destroyed.
• The Progress-40 spacecraft linked up with Mir on 12 Feb, and will remain attached to the station for about a month.
• Progress-41 docked with Mir on 18 Mar at 20:51 UT and undocked on 21 Apr at 01:46 UT.
• The Soyuz TM-7 crew undocked from the Mir station on Apr 26 and landed in Kazakstan on Apr 27 leaving the Mir station unpiloted for the first time in over two years. (The Soyuz TM-8 mission to Mir has been cancelled, a new crew is trained to repair the electrical power system.)
• During this mission experiments in 16 different fields were performed as topografic and spectrografic research of the Earth surface, biological and medical research (incl. Blood- and heart-tests).