Expedition 12

Expedition 12

ISS Expedition
Name = Expedition 12
Insignia = ISS Expedition 12 patch.png CallSign = Expedition 12
NumberOfCrew = 2
LaunchDate = October 1, 2005 03:55 UTC
LaunchSite = Baikonur LC1
LaunchVehicle = Soyuz TMA-7
StationVisitLength = October 3, 2005, 07:27 UTC
StationEVALength = 1st EVA: 5 Hours 22 Minutes
2nd EVA: 5 Hours 43 Minutes
LandingDate = April 8, 2006 23:48 UTC
LandingSite = Kazakhstan
LandingVehicle = Soyuz TMA-7
Duration = 189 Days
Orbits = 2,987
Distance =
Mass = 187,016 kg
CrewPhoto = ISS Expedition 12 crew.jpg
CrewCaption = William S. McArthur, Jr. (U.S.A. left), Valery I. Tokarev (Russia right)
previous = Expedition 11
next = Expedition 13

Expedition 12 (2005) was the 12th expedition to the International Space Station, launched from Kazakhstan using the Russian Soyuz TMA-7 spacecraft. The crew landed back in Kazakhstan on April 8, 2006 with the addition of the first Brazilian astronaut, Marcos Pontes.

American entrepreneur Gregory Olsen was launched in the Soyuz TMA-7 spacecraft and returned with Expedition 11 on Soyuz TMA-6 on 2005 October 11, thereby becoming the third space tourist. [http://news.bbc.co.uk/1/hi/sci/tech/4298814.stm]


*William McArthur (4) ISS Commander - flagicon|USA NASA
*Valery Ivanovich Tokarev (2) ISS Flight Engineer - flagicon|Russia RSA

(#) number of spaceflights each crew member has completed, including this mission.

Mission parameters

*Inclination: 51.6 degrees
*Orbital period:

*Docked: October 3, 2005 07:27 UTC
*Undocked: April 08, 2006 20:28 UTC
*Docked Duration: 186 Days, 13 Hours

Mission objectives

Station assembly preparations, maintenance and science in microgravity.


There have been two spacewalks outside the ISS during Expedition 12. MacArthur and Tokarev participated in both of them.


The first EVA was on November 7, 2005 for 5 hours and 22 minutes. There were two main objectives, both of which were completed. The first was to install and setup a new camera on the P1 Truss which will be used in the installation of more truss segments. The second was to jettison the Floating Potential Probe which was a failed instrument, designed to measure the station's electrical potential and compare it to the surrounding plasma. [http://www.nasa.gov/mission_pages/station/expeditions/expedition12/exp12_eva.html]


The second spacewalk took place on February 3, 2006 and lasted 5 hours and 43 minutes. The astronauts jettisoned old Russian Orlan spacesuit, named SuitSat-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 surviving umbilical of the mobile transporter. [http://www.nasa.gov/mission_pages/station/expeditions/expedition12/exp12_eva2.html]

olar eclipse


External links

* [http://www.nasa.gov/mission_pages/station/expeditions/expedition12/index.html Expedition 12 NASA page]

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Expedition — Expedition …   Deutsch Wörterbuch

  • expédition — [ ɛkspedisjɔ̃ ] n. f. • XIIIe; lat. expeditio I ♦ 1 ♦ Vx Action d expédier (I, 1o) ce qu on a à faire. L expédition d une affaire. ⇒ achèvement, exécution. Admin. Le président du Conseil démissionnaire est chargé de l expédition des affaires… …   Encyclopédie Universelle

  • Expedition 26 — Mission insignia Number of crew 6 Launch craft Soyuz TMA 01M, Soyuz TMA 20 Start 26 November 2010 04:46 UTC …   Wikipedia

  • Expedition — Ex pe*di tion, n. [L. expeditio: cf.F. exp[ e]dition.] 1. The quality of being expedite; efficient promptness; haste; dispatch; speed; quickness; as to carry the mail with expedition. [1913 Webster] With winged expedition [1913 Webster] Swift as… …   The Collaborative International Dictionary of English

  • expedition — Expedition. s. f. v. Action par laquelle on expedie. Prompte expedition. Il se dit des depesches, des lettres qu on expedie, soit missives particulieres, soit ordres, instructions, memoires, soit actes de Justice. Ce Courrier attend ses… …   Dictionnaire de l'Académie française

  • Expedition — may refer to: * A journey undertaken for a specific purpose, usually exploration and/or research *Military expedition * Expedition , the science fiction book by Wayne Douglas Barlowe. * Ford Expedition, a Ford Motor Company s large sports utility …   Wikipedia

  • Expedition — Sf std. (16. Jh.) Entlehnung. Entlehnt aus l. expedītio ( ōnis) Erledigung, Abfertigung, Feldzug , einem Abstraktum zu l. expedīre erledigen, losmachen, eigentlich den Fuß aus Fesseln befreien , einer Präfixableitung zu l. pēs (pedis) m. Fuß .… …   Etymologisches Wörterbuch der deutschen sprache

  • expedition — et achevement, Confectio. Expedition et charge de conduire une armée, Ducatus. La chose sera de longue expedition, Longe res abibit, B. ex Vlp …   Thresor de la langue françoyse

  • expedition — UK US /ˌekspɪˈdɪʃən/ noun [U] FORMAL ► speed in doing something: »We will deal with your order with the greatest possible expedition …   Financial and business terms

  • expedition — early 15c., military campaign; the act of rapidly setting forth, from M.Fr. expédition (13c.) and directly from L. expeditionem (nom. expeditio), noun of action from pp. stem of expidere (see EXPEDITE (Cf. expedite)). Meaning journey for some… …   Etymology dictionary

  • expedition — [n1] journey; people on a journey campaign, caravan, cavalcade, company, crew, crowd, cruise, crusade, enterprise, entrada, excursion, exploration, explorers, fleet, jaunt, junket, mission, outing, party, patrol, peregrination, picnic, posse,… …   New thesaurus

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.