| Operator | Roscosmos |
|---|---|
| COSPAR ID | 2008-015A |
| SATCATno. | 32756 |
| Mission duration | 198d 16h 21m |
| Spacecraft properties | |
| Spacecraft type | Soyuz-TMA |
| Manufacturer | Energia |
| Crew | |
| Crew size | 3 |
| Members | Sergey Volkov Oleg Kononenko |
| Launching | Yi So-Yeon |
| Landing | Richard Garriott |
| Callsign | Eridan |
| Start of mission | |
| Launch date | April 8, 2008, 11:16:39 (2008-04-08UTC11:16:39Z) UTC |
| Rocket | Soyuz-FG |
| Launch site | Baikonur1/5 |
| End of mission | |
| Landing date | October 24, 2008, 03:37 (2008-10-24UTC03:38Z) UTC[1] |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Docking withISS | |
| Docking port | Pirs nadir |
| Docking date | 10 April 2008 12:57 UTC |
| Undocking date | 24 October 2008 00:16 UTC |
| Time docked | 196d 11h 19m |
From left to right: Yi So-yeon, Sergey Volkov, Oleg Kononenko Soyuz programme (Crewed missions) | |
Soyuz TMA-12 was aSoyuz mission to theInternational Space Station (ISS) which was launched by aSoyuz FG rocket at 11:16 UTC on 8 April 2008. It docked to thePirs module of the station on 10 April 2008.[2] Landing occurred at 03:37 on 24 October. It was the first nominal landing in three missions, following separation failures on theSoyuz TMA-10 and11 spacecraft.
| Position | Launching crew | Landing crew |
|---|---|---|
| Commander | Expedition 17 First spaceflight | |
| Flight Engineer | Expedition 17 First spaceflight | |
| Spaceflight Participant | Only spaceflight | Only spaceflight |
| Position | Launching crew | Landing crew |
|---|---|---|
| Commander | ||
| Flight Engineer | ||
| Spaceflight Participant | ||
Yi So-yeon flew as a guest of theRussian government through theKorean Astronaut Program after the Korean government paid the Russian government 25 million US dollars in agreement to support the first Korean astronaut in space. Her role aboard the Soyuz is referred to as aSpaceflight Participant in English-languageRussian Federal Space Agency andNASA documents and press briefings.[6] Ko San was originally scheduled to fly, with Yi as his backup. On 10 March 2008, it was announced that Ko breached regulations surrounding removal of books from the training centre in Russia,[7] and therefore would not be allowed to fly.[4]

Richard Garriott flew as a private astronaut through a program run bySpace Adventures. He is also referred to as aSpaceflight Participant in English-language Roscosmos and NASA documents.
Soyuz TMA-12 saw the joined landing of the world's first two second-generation space travellers, Sergey Volkov and Richard Garriott. Volkov's father,Aleksandr Volkov, flew to space three times and visited theSalyut 7 andMir space stations. Garriott's father,Owen Garriott, flew to space twice and visited theSkylab space station.