Expedition 12
 Promotional poster | |
| Mission type | ISS Expedition |
|---|---|
| Mission duration | 187 days, 14 hours, 1 minute (at ISS) 189 days, 19 hours, 53 minutes (launch to landing) |
| Orbits completed | 2,987 |
| Expedition | |
| Space station | International Space Station |
| Began | 3 October 2005, 05:27UTC |
| Ended | 8 April 2006, 19:28UTC |
| Arrived aboard | Soyuz TMA-7 |
| Departed aboard | Soyuz TMA-7 |
| Crew | |
| Crew size | 2 |
| Members | William S. McArthur Valeri I. Tokarev |
| EVAs | 2 |
| EVAduration | 11 hours, 5 minutes |
 Expedition 12 mission patch  William S. McArthur, Jr. (United States left), Valeri I. Tokarev (Russia right) | |
Expedition 12(2005) was the 12th expedition to theInternational Space Station,launched fromKazakhstanusing theRussianSoyuz TMA-7spacecraft. The crew landed back in Kazakhstan on 8 April 2006 with the addition of the first Brazilian astronaut,Marcos Pontes.
American entrepreneurGregory Olsenwas launched in theSoyuz TMA-7spacecraft and returned withExpedition 11onSoyuz TMA-6on 11 October 2005 thereby becoming the thirdspace tourist.[1]
Crew[edit]
| Position | Astronaut | |
|---|---|---|
| Commander |  William S. McArthur,NASAFourth and last spaceflight | |
| Flight Engineer 1 |  Valeri I. Tokarev,RSASecond and last spaceflight | |
Mission parameters[edit]
- Perigee:
- Apogee:
- Inclination:51.6 degrees
- Orbital period:
Mission objectives[edit]
Station assembly preparations, maintenance and science in microgravity.
Spacewalks[edit]
There were twospacewalksoutside theISSduring Expedition 12. MacArthur and Tokarev participated in both of them.
EVA 1[edit]
The first EVA was on 7 November 2005 for 5 hours and 22 minutes. There were two main objectives, both of which were completed. The first was to install and set up a new camera on theP1 Trusswhich was later used in the installation of moretruss segments.The second was to jettison theFloating Potential Probewhich was a failed instrument, designed to measure the station's electrical potential and compare it to the surroundingplasma.[2]
EVA 2[edit]
The second spacewalk took place on 3 February 2006 and lasted 5 hours and 43 minutes. The astronauts jettisoned an old RussianOrlan spacesuit,namedSuitSat-1,that was equipped with a radio for broadcasts to students around the world. The suit reached the end of its operation life in 2004. They also retrieved the Biorisk experiment, photographed a sensor for a micrometeoroid experiment, and tied off the survivingumbilicalof the mobile transporter.[3]
Solar eclipse[edit]
On 29 March 2006 a totalsolar eclipsetook place, and the adjacent picture was taken by the Expedition 12 crew. It clearly shows the shadow of theMoonbeing cast on theEarth.
Concert[edit]
While wake-up music is a tradition aboard space shuttle missions, the ISS crew generally use an alarm clock to wake up. Expedition 12 astronauts received a special treat on 3 November 2005 whenPaul McCartneyperformedGood Day SunshineandEnglish Teain a first ever concert linkup from theArrowhead Pondin Anaheim, California on hisUStour. The event was broadcast live onNASA TV.[4]
References[edit]
This article incorporatespublic domain materialfromExpedition 12.National Aeronautics and Space Administration.
- ^BBC.news:Space tourist blasts off to ISS,accessed last 11 March 2011
- ^"NASA:EVA 1 - Spacewalkers Install New Camera Assembly, Jettison FPP".Archived fromthe originalon 23 June 2022.Retrieved9 April2006.
- ^"NASA:EVA 2 - Crew Back in Station After Spacewalk".Archived fromthe originalon 20 October 2008.Retrieved9 April2006.
- ^Fries, Colin (25 June 2007)."Chronology of Wakeup Calls"(PDF).NASA. p. 73. Archived fromthe original(PDF)on 5 June 2010.Retrieved13 August2007.
STS-5, STS-41-G
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