page_title: STS-127
section_title: 16 July (Flight Day 2)
hierarchical_section_title: STS-127 / Mission timeline / 16 July (Flight Day 2)
caption_attribution_description: English: Canadian Space Agency astronaut Julie Payette, STS-127 mission specialist, looks through an overhead window while operating controls on the aft flight deck of Space Shuttle Endeavour during flight day two activities.
context_page_description: STS-127 was a NASA Space Shuttle mission to the International Space Station. It was the twenty-third flight of Space Shuttle Endeavour. The primary purpose of the STS-127 mission was to deliver and install the final two components of the Japanese Experiment Module: the Exposed Facility, and the Exposed Section of the Experiment Logistics Module. When Endeavour docked with the ISS on this mission in July 2009, it set a record for the most humans in space at the same time in the same vehicle, the first time thirteen people have been at the station at the same time. It also tied the record of thirteen people in space at any one time.
  The first launch attempt, on 13 June 2009, was scrubbed due to a gaseous hydrogen leak observed during tanking. The Ground Umbilical Carrier Plate on the external fuel tank experienced a potentially hazardous hydrogen gas leak similar to the fault that delayed the Space Shuttle Discovery mission STS-119 in March 2009.
context_section_description: The thermal protection system was inspected with the Shuttle Robotic Arm/Orbiter Boom Sensor System (OBSS) and the voluminous data downlinked for analysis. The orbital maneuvering system pods were inspected for tile damage or protruding tiles. The extravehicular mobility units were checked in addition to the rendezvous system tests and centerline camera installation. In preparation for the docking, the docking ring was extended.
caption: Julie Payette looks through an overhead window while operating controls on the aft flight deck of Endeavour during flight day two activities.
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