Endeavour Leaving the International Space Station

EVA
Astronauts on EVA
Image Credit: NASA TV

Endeavour is due to undock from the space station Sunday night at 8:55 PM Phoenix time (0355 30 May UTC) after nearly two weeks visiting the orbiting lab.

During the mission to the ISS, the Russian Soyuz spacecraft TMA-20 returned to Earth with astronauts Cady Coleman, Paoli Nespoli, and Russian cosmonaut Dmitri Kondratyev.

Following detachment from the space station, the crew of TMA-20 photographed the ISS and Endeavor. Details here.

During the current (and last visit) by Endeavour, four spacewalks were performed:

  • EVA 1. 19 May – Retrieve Materials International Space Station Experiment-7 (MISSE-7) from the ELC 2 and install in Endeavour’s payload bay, and installation of MISSE-8. Install P3-P4 ammonia jumpers. Install P5-P6 ammonia jumpers. Install wireless communications for Destiny Lab.
  • EVA2. 21 May – Began with rerouting the P3-P4 ammonia jumpers. The Solar Alpha Rotary Joint (SARJ) was exposed and lubricated, as was the Special Purpose Dexterous Manipulator (SPDM). And the ammonia system was vented.
  • EVA3. 25 May – Work was performed on the Zarya module, including installation of the Power Data Grapple Fixture (PDGF) and a variety of cables.
  • EVA4. 26 May – The 162nd and FINAL Space Shuttle spacewalk. The Orbiter Boom Sensor System (OBSS) was transferred from Endeavour to the ISS (at the Starboard 0 / starboard 1 truss interface) and a PDGF was installed so that the SPDM can attach it.

Coverage of the return will be on NASA TV.