Space Shuttle Atlantis (Orbiter Vehicle Designation: OV-104) is one of the three currently operational orbiters in the Space Shuttle fleet of NASA, the space agency of the United States.(The other two are Discovery and Endeavour.) Atlantis was the fourth operational shuttle built. Atlantis is named after a two-masted sailing ship that operated from 1930 to 1966 for the Woods Hole Oceanographic Institute.

In early 2008, NASA officials decided to keep Atlantis flying until 2010, the projected end of the Shuttle program.[3] This reversed a previous decision to retire Atlantis in 2008.


The first flight of Atlantis, STS-51-J, took place during October 1985. The mission was one of five flights during which crews conducted classified military activities. Atlantis flew one other mission, STS-61-B, before the Space Shuttle Challenger disaster temporarily grounded the shuttle fleet in 1986.

Atlantis was used for ten flights between 1988 and 1992. Two of these, both flown in 1989, deployed planetary probes (Magellan on STS-30 and Galileo on STS-34). Another mission, STS-37 flown in 1991, deployed the Compton Gamma Ray Observatory.

Beginning in 1995 with STS-71, Atlantis made seven straight flights to Mir (a Russian space station) as part of the Shuttle-Mir Program.

After STS-86, the seventh flight of Atlantis to Mir, the orbiter underwent a series of refitting operations. From November 1997 to July 1999, about 165 modifications were made to Atlantis, including the installation of the Multifunction Electronic Display System, or glass cockpit. In May 2000 Atlantis returned to service for STS-101, a flight to the International Space Station (ISS).

The first mission flown by Atlantis after the Space Shuttle Columbia disaster was STS-115, conducted during September 2006. The mission carried the P3/P4 truss segments and solar arrays to the ISS.

The longest mission flown using Atlantis -- STS-117 during June 2007—lasted almost 14 days. Because Atlantis is not equipped to take advantage of the Station-to-Shuttle Power Transfer System, missions cannot be extended by making use of power provided by ISS.

In May of 2009 Atlantis took its crew to the Hubble Space Telescope for its Servicing Mission 4. The mission was a success, with the crew completing five space walks to install new cameras, batteries, a gyroscope and other components to the telescope.

NASA had planned to withdraw Atlantis from service in 2008, as the orbiter would have been due to undergo the scheduled Orbiter Maintenance Down Period (OMDP); this is a major program of refit and maintenance which would have lasted at least a year. Because of the final retirement of the shuttle fleet in 2010, this was deemed uneconomic. It was planned that Atlantis would be kept in near flight condition to be used as a parts hulk for Discovery and Endeavour. However, with the significant planned flight schedule up to 2010, the decision was taken to extend the time between OMDPs, allowing Atlantis to be retained for operations. Atlantis has been swapped for one flight of each of the other orbiters in the flight manifest. As of May 2008, Atlantis is now projected to fly at least two more missions prior to the end of the shuttle program:

STS-129- ISS assembly mission (EXPRESS Logistics Carriers 1 & 2 ELC1 & ELC2) STS-131 - ISS logistics mission (Multi-Purpose Logistics Module Raffaello)

180px-ShuttleAtlantis launch

Space Shuttle Atlantis at the launch of STS-115


Atlantis Docked to Mir

Atlantis docked with Mir

Atlantis has completed 29 flights, spent 220.40-days in space, completed 3,468 orbits, and flown 89,908,732 nautical miles (166,510,972 km) in total, as of September 2006. Among the five Space Shuttles flown in space, Atlantis has conducted a subsequent mission in the shortest time after the previous mission when it launched in November, 1985, only 50 days after its previous mission.

# Launch date Designation Notes
1 1985 October 3 STS-51-J First Atlantis mission; mission dedicated to Department of Defense.
2 1985 November 26 STS-61-B 3 communications satellites deployed: MORELOS-B, AUSSAT-2 and SATCOM KU-2.
3 1988 December 2 STS-27 Mission dedicated to Department of Defense.
4 1989 May 4 STS-30 Deployed Magellan probe.
5 1989 October 18 STS-34 Deployed Galileo probe.
6 1990 February 28 STS-36 Mission dedicated to Department of Defense.
7 1990 November 15 STS-38 Mission dedicated to Department of Defense.
8 1991 April 5 STS-37 Deployed Compton Gamma Ray Observatory.
9 1991 August 2 STS-43 Deployed TDRS-5.
10 1991 November 24 STS-44 Mission dedicated to Department of Defense.
11 1992 March 24 STS-45 Carried Atmospheric Laboratory for Applications and Science (ATLAS) mission 1.
12 1992 July 31 STS-46 Deployed ESA European Retrievable Carrier and NASA Tethered Satellite System.
13 1994 November 3 STS-66 Carried ATLAS mission 3.
14 1995 June 29 STS-71 First shuttle docking with space station Mir.
15 1995 November 12 STS-74 Carried docking module to Mir.
16 1996 March 22 STS-76 Rendezvous with Mir, including crew transfer of Shannon Lucid.
17 1996 September 16 STS-79 Rendezvous with Mir, including crew transfer of Shannon Lucid and John Blaha.
18 1997 January 12 STS-81 Rendezvous with Mir, including crew transfer of John Blaha and Jerry Linenger.
19 1997 May 15 STS-84 Rendezvous with Mir, including crew transfer of Jerry Linenger and Michael Foale.
20 1997 September 25 STS-86 Rendezvous with Mir, including crew transfer of Michael Foale and David A. Wolf.
21 2000 May 19 STS-101 International Space Station assembly mission (re-supply ISS).
22 2000 September 8 STS-106 International Space Station assembly mission (re-supply ISS).
23 2001 February 7 STS-98 International Space Station assembly mission (carried and assembled the Destiny Laboratory Module).
24 2001 July 12 STS-104 International Space Station assembly mission (carried and assembled the Quest Joint Airlock).
25 2002 April 8 STS-110 International Space Station assembly mission (carried and assembled the S0 truss segment).
26 2002 October 7 STS-112 International Space Station assembly mission (carried and assembled the S1 truss segment).
27 2006 September 9 STS-115 International Space Station resupply and construction (P3 and P4 truss segments).
28 2007 June 8 STS-117 International Space Station resupply and construction (S3 and S4 truss segments).[1]
29 2008 February 7 STS-122 International Space Station construction (Columbus laboratory).
30 2009 May 11 STS-125 Hubble Space Telescope servicing (Fine Guidance Sensor).

+ Targeted date as mission has yet to launch
* No Earlier Than (Tentative)
** To Be Determined


NASA announced that 24 helium and nitrogen gas tanks, named Composite Overwrap Pressure Vessels, in
220px-Atlantis Sitting in the Vehicle Assembly Building prepared for decomission-1-

The space shuttle Atlantis resting in the Vehicle Assembly Building. Note the missing nose panels as the shuttle is prepared for display at the Kennedy Space Center

Atlantis are older than their designed lifetime (designed for 10 years, later cleared for another 10 years but in service now for 22 years). NASA said it cannot guarantee any longer that the vessels on Atlantis will not burst or explode under full pressure. Therefore, the vessels will only be at 80 percent pressure as close to the launch countdown as possible, and the launch pad will be cleared of all but essential personnel when pressure is increased to 100 percent. A launch pad explosion could damage parts of the shuttle and even wound or kill ground personnel. An in-flight failure to the vessels could even result in the loss of the orbiter and its crew. Because the original vendor is no longer available, the vessels cannot be rebuilt before 2010, when the shuttles are scheduled to be retired. NASA analyses originally assumed that the vessels would leak before they burst, but new tests showed that they would burst before they leak. The new launch procedure, of clearing the launch pad of all but the essential personnel and pressurizing the tanks to 100 percent as late as possible, will now be conducted during the remaining Atlantis launches if no other resolution is found. Atlantis will have to fly at least one more time in this setting. It is unclear, but possible, that Discovery, which will launch another five or six times, has the same problems and if the same launch procedure needs to be conducted with Discovery. Since Endeavour, which will launch another six or seven times, was built much later, around 1990, it is possible that Endeavour does not have the same problem.

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