Soyuz 27
Mission typeCrewed mission to Salyut 6
COSPAR ID1978-003A Edit this at Wikidata
SATCAT no.10560
Mission duration65 days
Orbits completed1025
Spacecraft properties
SpacecraftSoyuz s/n 44
Spacecraft typeSoyuz 7K-T
ManufacturerNPO Energia
Launch mass6800 kg
Crew size2
LaunchingVladimir Dzhanibekov
Oleg Makarov
LandingYuri Romanenko
Georgy Grechko
CallsignПамир Pamir
Pamir Mountains
Start of mission
Launch date10 January 1978, 12:26:00 UTC
RocketSoyuz-U s/n D15000-106
Launch siteBaikonur, Site 1/5[1]
End of mission
Landing date16 March 1978, 11:18:47 UTC
Landing site310 km at west of Tselinograd
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Perigee altitude198.9 km
Apogee altitude253.8 km
Period88.73 minutes
Docking with Salyut 6
Docking date11 January 1978, 14:05:54 UTC
Undocking date16 March 1978, 07:58:00 UTC
Soyuz programme
(Crewed missions)

Soyuz 27 (Russian: Союз 27, Union 27) was a 1978 Soviet crewed spacecraft which flew to the orbiting Salyut 6 space station, during the mission EP-1.[2] It was the third crewed flight to the station, the second successful docking and the first visitation mission. Once docked, it marked the first time that three spacecraft were docked together.

The main function of the EP-1 mission was to swap Soyuz craft with the orbiting crew, in so doing freeing a docking port for a forthcoming supply tanker. Cosmonauts Vladimir Dzhanibekov and Oleg Makarov returned to Earth in the Soyuz 26 spacecraft after spending five days on the station. The descent module is displayed at the Sergei Pavlovich Korolyov Museum of Cosmonautics in Zhytomyr, Ukraine.[3]


Position Launching Cosmonaut Landing Cosmonaut
Commander Vladimir Dzhanibekov
First spaceflight
Yuri Romanenko
First spaceflight
Flight Engineer Oleg Makarov
Third spaceflight
Georgy Grechko
Second spaceflight

Backup crew

Position Cosmonaut
Commander Vladimir Kovalyonok
Flight Engineer Aleksandr Ivanchenkov
The launching and landing crews had the same backups

Mission parameters


  1. ^ "Baikonur LC1". Encyclopedia Astronautica. Archived from the original on 15 April 2009. Retrieved 4 March 2009.
  2. ^ Becker, Joachim. "Spaceflight mission report: Soyuz 27". Retrieved 10 August 2017.
  3. ^ "Подорож у минуле". Музей космонавтики ім. С.П. Корольова Житомирської обласної Ради. Sergei Pavlovich Korolyov Museum of Cosmonautics. 2013. Retrieved 17 July 2016.