3/4 of an inch pin. The mission will also mark the final flight of Space Shuttle Endeavour.
Design changes in AMS-02 as well as delays to STS-133 have led to delays in the mission, and it is now targeted to launch on February 26, 2011. The experiment leader, Samuel Ting, has decided to replace the powerful superconducting magnet inside the spectrometer with an ordinary magnet.
Mission name STS-134
Space shuttle Endeavour
Launch pad 39A
Launch date May 16 2011
Landing NET June 1 2011
Mission duration 14 days
Orbital altitude 225 kilometres (121 nmi)
Orbital inclination 51.6 degrees
Commander Mark E. Kelly
Pilot Gregory H. Johnson
Mission Specialist 1 Michael Fincke
Mission Specialist 2 Roberto Vittori, ESA
Mission Specialist 3 Andrew J. Feustel
Mission Specialist 4 Gregory Chamitoff