Space Shuttle Endeavour
| Endeavour OV-105 |
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 Space Shuttle Endeavour on launch pad 39B prior to mission STS-126, September 19, 2008. |
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| OV designation | OV-105 |
|---|---|
| Country | United States |
| Contract award | July 31, 1987 |
| Named after | HM Bark Endeavour |
| Status | Active |
| First flight | STS-49 May 7, 1992 - May 16, 1992 |
| Last flight | STS-126 November 14, 2008 - November 30, 2008 |
| Number of missions | 22 |
| Time spent in space | 234.01 days |
| Number of orbits | 3,259 |
| Distance travelled | 136,910,237 km (73,925,614 nmi) |
| Satellites deployed | 3 |
| Mir dockings | 1 |
| ISS dockings | 9 |
Space Shuttle Endeavour (Orbiter Vehicle Designation: OV-105) is one of the three currently operational orbiters in the Space Shuttle fleet of NASA, the space agency of the United States.[1] (The other two are Discovery and Atlantis.) Endeavour was the fifth and final NASA space shuttle to be built.
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Current status
Endeavour is currently at Edwards Air Force Base in California. It landed on November 30, 2008 after completing its latest mission STS-126 to the International Space Station, which launched on November 14. Two scheduled landings at Kennedy Space Center were waved off due to poor weather conditions. Endeavour is scheduled be transported to Kennedy Space Center atop NASA's Shuttle Carrier Aircraft beginning December 7.
History
The United States Congress authorized the construction of Endeavour in 1987 to replace Challenger, which was lost in an accident in 1986. Structural spares from the construction of Discovery and Atlantis, two of the three remaining operating shuttles at the time, were used in its assembly. The decision to build Endeavour was favored over refitting Enterprise on cost grounds.
Endeavour was named through a national competition involving students in elementary and secondary schools. Entries included an essay about the name, the story behind it and why it was appropriate for a NASA shuttle, and the project that supported the name. Endeavour was the most popular entry, accounting for almost one-third of the state-level winners.[2] For example, Utah's state level winner, Nolan Butcher, a sixth grade student from Nibley Park Elementary school located in Salt Lake City Utah, selected Endeavour because some definitions of the word mean to be bold and put forth great effort. The national winners were Senatobia Middle School in Senatobia, Miss., in the elementary division and Tallulah Falls School in Tallulah Falls, Ga., in the upper school division. The national winners were selected based on the quality of the project submitted with their entries. They were honored at several ceremonies in Washington, D.C., including a White House ceremony where then-President George H.W. Bush presented awards to each school.[3]
The orbiter is named after HM Bark Endeavour, the ship commanded by 18th century explorer James Cook; the name also honored Endeavour, the Command Module of Apollo 15. This is why the name is spelled in the British English manner, rather than the American English spelling of "Endeavor." This has caused confusion, most notably when NASA themselves misspelled a sign on the launch pad in 2007.[4]
Endeavour was delivered by Rockwell International in May 1991 and first launched a year later, in May 1992, on STS-49. Rockwell International claimed that it had made no profit on Space Shuttle Endeavour, despite it costing $2.2 billion USD. On its first mission, it captured and redeployed the stranded INTELSAT VI communications satellite.
In 1993, it made the first service mission to the Hubble Space Telescope. Endeavour was withdrawn from service for eight months in 1997 for a retrofit, including installation of a new airlock. In December 1998, it delivered the Unity Module to the International Space Station. Endeavour completed its latest Orbiter Major Modification period, which began in December 2003, and ended on Thursday, October 6, 2005. During this time, the Orbiter received major hardware upgrades, including a new, multi-functional, electronic display system, often referred to as glass cockpit, and an advanced GPS receiver, along with safety upgrades recommended by the Columbia Accident Investigation Board (CAIB) for Shuttle return to flight after the disintegration of sister-ship Columbia during re-entry on February 1, 2003.
The STS-118 mission, the first for Endeavour following a lengthy refit, included astronaut Barbara Morgan, formerly assigned to the Educator Astronaut program, but now a full member of the Astronaut Corps, as part of the crew. Morgan was the backup for Christa McAuliffe on the ill-fated STS-51-L mission.
Upgrades and features
Endeavour features new hardware designed to improve and expand orbiter capabilities. Most of this equipment was later incorporated into the other two orbiters during out-of-service major inspection and modification programs. Endeavour's upgrades include:
- A 40-foot (12 m) diameter drag chute that is expected to reduce the orbiter's rollout distance by 1,000 to 2,000 feet (300 to 600 m).
- The plumbing and electrical connections needed for Extended Duration Orbiter (EDO) modifications to allow up to 28-day missions (although a 28-day mission has never yet been attempted; the current record is 17 days, which was set by Columbia).
- Updated avionics systems that include advanced general purpose computers, improved inertial measurement units and tactical air navigation systems, enhanced master events controllers and multiplexer-demultiplexers, a solid-state star tracker and improved nose wheel steering mechanisms.
- An improved version of the Auxiliary Power Units (APUs) that provide power to operate the Shuttle's hydraulic systems.
Modifications resulting from a 2005-2006 refit of Endeavour include:
- The Station-to-Shuttle Power Transfer System (SSPTS), which converts 8 kilowatts of DC power from the ISS main voltage of 120VDC to the orbiter bus voltage of 28VDC. This upgrade will allow Endeavour to remain on-orbit while docked at ISS for an additional 3- to 4-day duration. The corresponding power equipment was added to the ISS during the STS-116 station assembly mission, and Endeavour flew with SSPTS capability during STS-118.[5][6][7]
Decommissioning of Space Shuttle Endeavour
According to NASA, Space Shuttle Endeavour will be decommissioned in 2010, after 18 years of service, along with Discovery and Atlantis. NASA expects to have the Orion spacecraft ready no later than 2014. Based on the current (as of August 2007) consolidated launch manifest, Endeavour may be the last Orbiter to fly, contingent on the optional STS-133 mission to the International Space Station, which will carry the final components in the ISS assembly sequence, the EXPRESS Logistics Carrier ELC5 and ELC1, to orbit.
Flights
Space Shuttle Endeavour has flown 20 flights, spent 219.35 days in space, completed 3,259 orbits, and flown 85,072,077 miles (136,910,237 km) in total, as of August 2007[update].
| # | Launch date | Designation | Launch pad | Landing location | Notes |
|---|---|---|---|---|---|
| 1 | 1992-05-07 | STS-49 | 39-B | Edwards Air Force Base | First flight of Endeavour: Capture and redeploy Intelsat VI. First three-man EVA, longest US EVA since Apollo 17 |
| 2 | 1992-09-12 | STS-47 | 39-B | Kennedy Space Center | Spacelab mission J |
| 3 | 1993-01-13 | STS-54 | 39-B | Kennedy | Deploy TDRS-F |
| 4 | 1993-06-21 | STS-57 | 39-B | Kennedy | Spacelab experiments. Retrieve European Retrievable Carrier |
| 5 | 1993-12-02 | STS-61 | 39-B | Kennedy | First Hubble Space Telescope service mission (HSM-1) |
| 6 | 1994-04-09 | STS-59 | 39-A | Edwards | Space Radar Laboratory experiments |
| 7 | 1994-09-30 | STS-68 | 39-A | Edwards | Space Radar Laboratory experiments |
| 8 | 1995-03-02 | STS-67 | 39-A | Edwards | Spacelab Astro-2 experiments |
| 9 | 1995-09-07 | STS-69 | 39-A | Kennedy | Wake Shield Facility and other experiments |
| 10 | 1996-01-11 | STS-72 | 39-B | Kennedy | Retrieve Japanese Space Flyer Unit |
| 11 | 1996-05-19 | STS-77 | 39-B | Kennedy | Spacelab experiments |
| 12 | 1998-01-22 | STS-89 | 39-A | Kennedy | Rendezvous with Mir space station and astronaut exchange |
| 13 | 1998-12-04 | STS-88 | 39-A | Kennedy | International Space Station assembly mission (assembled the Unity Module (Node 1), first American component of the ISS) |
| 14 | 2000-02-11 | STS-99 | 39-A | Kennedy | Shuttle Radar Topography Mission experiments |
| 15 | 2000-11-30 | STS-97 | 39-B | Kennedy | International Space Station assembly mission (P6 truss segment) |
| 16 | 2001-04-19 | STS-100 | 39-A | Edwards | International Space Station assembly mission (Canadarm2 robotic arm and hand) |
| 17 | 2001-12-05 | STS-108 | 39-B | Kennedy | International Space Station rendezvous and astronaut exchange (Expedition 3/Expedition 4) |
| 18 | 2002-06-05 | STS-111 | 39-A | Edwards | International Space Station rendezvous and astronaut exchange (Expedition 4/Expedition 5) |
| 19 | 2002-11-23 | STS-113 | 39-A | Kennedy | International Space Station assembly mission and astronaut exchange/final successful shuttle flight before the Columbia disaster (Expedition 5/6 exchange; P1 truss segment assembly) |
| 20 | 2007-08-08 | STS-118 | 39-A | Kennedy | Four spacewalks conducted [8]. Installation of the International Space Station S5 Truss, of the Integrated Truss Structure. Carried a SPACEHAB module carrying 5,000 pounds of supplies and equipment to the International Space Station. Crew included the Educator Astronaut Barbara Morgan. Thermal tiles protecting the underside of the vehicle were damaged during launch. NASA decided not to fix this damage in-flight as it was not believed to be serious enough to result in loss of vehicle or crew. The craft landed a day early due to the possibility that Hurricane Dean would force Mission Control to evacuate. |
| 21 | 2008-03-11 | STS-123 | 39-A | Kennedy | International Space Station assembly mission which delivered the first element of Japan's Kibo module along with the Canadian Special Purpose Dexterous Manipulator robotic arm, and the Spacelab Pallet-Deployable 1. |
| 22 | 2008-11-14 | STS-126 | 39-A | Edwards[9] | International Space Station assembly mission that brought equipment and supplies in the Multi-Purpose Logistics Module Leonardo, and Expedition 18 crew rotation, Sandra Magnus replaced Gregory Chamitoff. Endeavour was the first and last orbiter to land on the temporary runway 22 at Edwards AFB, as the refurbished main runway will be operational from STS-119 onwards.[10] |
See also
- List of human spaceflights
- List of Space Shuttle crews
- List of space shuttle missions
- Timeline of Space Shuttle missions
- List of human spaceflights chronologically
- Thiokol
References
- ↑ "Space Shuttle Overview: Endeavour (OV-105)". NASA.
- ↑ "The Naming Of The Space Shuttle Endeavour". NASA.
- ↑ "The Naming Of The Space Shuttle Endeavour". NASA.
- ↑ "Shuttle's Name Misspelled On NASA Launch Pad Sign". WKMG-TV. Retrieved on 2007-07-14.
- ↑ "Vehicle Upgrades: Station-Shuttle Power Transfer System (SSPTS)". Boeing: Integrated Defense Systems.
- ↑ "NASA Presolicitation Notice: Station-Shuttle Power Transfer System (SSPTS)". NASA, United States.
- ↑ "NASA's Space Shuttle Processing Status Report: S05-034". NASA, United States.
- ↑ Space Shuttle Mission STS-122
- ↑ NASA (November 30, 2008). "NASA RSS archive". NASA. Retrieved on November 30, 2008.
- ↑ Chris Bergin (November 30, 2008). "Endeavour lands at Edwards to conclude STS-126". NASASpaceflight.com.
External links
- Mission Summary Archive
- Shuttle Orbiter Endeavour (OV-105)
- 04/16/07: Consolidated Launch Manifest: Space Shuttle Flights and ISS Assembly Sequence.
- Space Shuttle Endeavour Pictures at the ISS
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