STS-134

STS-134
Endeavour (left) docked to the ISS, viewed from Soyuz TMA-20; AMS-02 is visible as a white box atop the station's truss, between its solar arrays
NamesSpace Transportation System-134
Mission typeISS assembly
OperatorNASA
COSPAR ID2011-020A
SATCAT no.37577
Mission duration15 days, 17 hours, 38 minutes, 51 seconds
Distance travelled10,477,185 km (6,510,221 mi)
Spacecraft properties
SpacecraftSpace Shuttle Endeavour
Launch mass2,052,443 kilograms (4,524,863 lb) (total)
121,830 kilograms (268,580 lb) (orbiter)[1][2]
Landing mass92,240 kilograms (203,354 lb)[1][2]
Payload mass15,770 kilograms (34,760 lb)[1][2]
Crew
Crew size6
Members
  • Mark E. Kelly
  • Gregory H. Johnson
  • Michael Fincke
  • Roberto Vittori
  • Andrew J. Feustel
  • Gregory Chamitoff
Start of mission
Launch dateMay 16, 2011, 12:56:28 (2011-05-16UTC12:56:28Z) UTC[3][4][5][6]
Launch siteKennedy, LC-39A
End of mission
Landing dateJune 1, 2011, 06:35 (2011-06-01UTC06:36Z) UTC[7]
Landing siteKennedy, SLF Runway 15
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Perigee altitude321 kilometres (199 mi)[8]
Apogee altitude343 kilometres (213 mi)[8]
Inclination51.6 degrees
Period91.17 minutes[8]
EpochMay 17, 2011[8]
Docking with ISS
Docking portPMA-2
(Harmony forward)
Docking dateMay 18, 2011, 10:14 UTC
Undocking dateMay 30, 2011, 03:55 UTC
Time docked11 days, 17 hours, 41 minutes

Pictured clockwise in the STS-134 crew portrait are NASA astronauts Mark Kelly (bottom center), commander; Gregory H. Johnson, pilot; Michael Fincke, Greg Chamitoff, Andrew Feustel and European Space Agency's Roberto Vittori, all mission specialists.
Space Shuttle program

STS-134 (ISS assembly flight ULF6)[9] was the penultimate mission of NASA's Space Shuttle program and the 25th and last spaceflight of Space Shuttle Endeavour.[10] This flight delivered the Alpha Magnetic Spectrometer and an ExPRESS Logistics Carrier to the International Space Station.[11] Mark Kelly served as the mission commander. STS-134 was expected to be the final Space Shuttle mission if STS-135 did not receive funding from Congress. However, in February 2011, NASA stated that STS-135 would fly "regardless" of the funding situation.[12][13] STS-135, flown by Atlantis, took advantage of the processing for STS-335, the Launch on Need mission that would have been necessary if the STS-134 crew became stranded in orbit.

Changes in the design of the main payload, AMS-02, as well as delays to STS-133, led to delays in the mission. The first launch attempt on April 29, 2011, was scrubbed at 12:20 pm by launch managers due to problems with two heaters on one of the orbiter's auxiliary power units (APU). Endeavour launched successfully at 08:56:28 EDT (12:56:28 UTC)[14] on May 16, 2011,[15] and landed for the final time on June 1, 2011.[16]

  1. ^ a b c "STS-134 Press Kit" (PDF). NASA. April 2011. Archived from the original (PDF) on December 26, 2018. Retrieved May 16, 2011.
  2. ^ a b c Cite error: The named reference obss was invoked but never defined (see the help page).
  3. ^ "Endeavour space shuttle launch faces more delay". KNXV-TV. Associated Press. May 6, 2011. Archived from the original on May 9, 2011.
  4. ^ Bergin, Chris (May 1, 2011). "STS-134: Launch slips to NET May 8 as APU troubleshooting finds LCA fault". NASASpaceflight. Archived from the original on July 2, 2025.
  5. ^ Harwood, William (May 15, 2011). "STS-134 Launch Windows". Spaceflight Now. Archived from the original on July 2, 2025.
  6. ^ Moskowitz, Clara (April 30, 2011). "NASA Delays Last Launch of Shuttle Endeavour Due to Malfunction". Space.com. Archived from the original on May 16, 2025. Retrieved April 19, 2011.
  7. ^ "Space Shuttle Launch and Landing". NASA. Archived from the original on May 24, 2011. Retrieved May 16, 2011.
  8. ^ a b c d McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved May 24, 2013.
  9. ^ NASA (September 24, 2009). "Consolidated Launch Manifest". NASA. Archived from the original on March 7, 2009. Retrieved October 15, 2009.
  10. ^ Pearlman, Robert Z. (April 26, 2010). "NASA shuffles shuttle schedule: Endeavour to fly after Discovery for final planned flight". collectSPACE. Archived from the original on July 20, 2025. Retrieved April 26, 2010.
  11. ^ Ryba, Jennifer, ed. (October 14, 2009). "NASA's Shuttle and Rocket Launch Schedule". NASA. Archived from the original on October 14, 2009. Retrieved October 15, 2009.
  12. ^ Bergin, Chris (February 13, 2011). "NASA managers insist STS-135 will fly – Payload options under assessment". NASASpaceflight. Archived from the original on April 20, 2025.
  13. ^ Ray, Justin (June 1, 2011). "STS-134 Mission Status". Spaceflight Now. Archived from the original on June 29, 2025.
  14. ^ Ryba, Jeanne. "Space Shuttle Archive". NASA. Archived from the original on October 16, 2009. Retrieved November 14, 2012.
  15. ^ Dunn, Marcia (May 16, 2011). "Endeavour soars on 2nd-to-last space shuttle trip". phys.org. Associated Press. Archived from the original on March 13, 2023.
  16. ^ "Endeavour completes final mission; NASA has one left". CNN. June 1, 2011. Archived from the original on January 2, 2013. Retrieved June 1, 2011.
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