![]() SSPTS was outfitted to the ISS Pressurized Mating Adapter-2 (PMA2) during STS-116. SSPTS allows Endeavour to tap into the ISS power supply, converting up to eight kilowatts of electrical power from 120-volts direct-current (120VDC) ISS main voltage to the 28VDC system used by the orbiter. One of the most important modifications that debuted during STS-118 is an upgraded power-distribution module, the Station-Shuttle Power Transfer System (SSPTS). STS-118 served as Endeavour's return to flight after a planned orbiter re-fit and maintenance period that resulted in over 200 modifications to the orbiter. However, the Space Shuttle Columbia disaster altered the planned flight schedules, and the mission was rescheduled for Endeavour. The mission was originally scheduled to be flown by Columbia STS-118 would have marked that orbiter's 29th flight and its first visit to the International Space Station. Mission background New components added to the International Space Station after flight STS-118/13A.1. Launched in July 2006, the MISSE PEC-3 and 4 contained over 850 materials specimens that will be studied to determine the effects of long-term exposure to the environment of space. It returned cargo, including the MISSE PEC 3 & 4, a Department of Defense payload that had been installed on the ISS. The Spacehab Logistics Single Module, a pressurized aluminum habitat that is carried inside the payload bay, has a capacity of 6,000 pounds (2,700 kg), and carried a variety of cargo and research projects, including supply materials for the ISS. The mission was also the final flight to include the Spacehab Logistics Single Module. ![]() The STS-118 mission delivered and assembled the starboard S5 truss segment of the International Space Station, as well as External Stowage Platform 3, (ESP-3) and a replacement Control Moment Gyroscope (CMG). ![]() Mission payloads ESP-3 launch configuration From top to bottom: Orbiter docking system, Spacehab, S5 truss, ESP-3. Parazynski was assigned to STS-120 and Nowak was assigned to STS-121. Prior to the Columbia disaster, the crew manifest for STS-118 was: Griffin clarified at a post-mission press conference that Morgan was not considered a mission specialist educator, but rather a standard mission specialist, who had once been a teacher. The tip of the flames touched Morgan's name on the patch. Morgan was the backup to Christa McAuliffe, the teacher who was killed aboard Challenger in 1986. The official STS-118 mission patch included a flame of knowledge that represented the importance of education, and honored teachers and students everywhere. The Educator Astronaut Project is the successor to NASA's Teacher in Space Project, which ended with the Space Shuttle Challenger disaster in 1986. NASA press releases and media briefing documents stated that STS-118 was the first flight of a Mission Specialist Educator due to the presence of Barbara Morgan. Crew PositionĪstronaut Clayton Anderson was originally slated to be launched to the ISS on this mission, but was moved to STS-117. On August 31, 2007, NASA reported that the damaged tiles had been removed in the Orbiter Processing Facility, and engineers had found no evidence of heat-related damage to the orbiter itself. Leinbach mentioned in the post-flight news conference that upon initial inspection on the ground, " Endeavour appears to be the 'cleanest' post-flight orbiter since Return to Flight". The mission added two more components to the ISS and brought supplies for its crew.ĭuring and after the mission, the media focused heavily on a small puncture in the heat shield, created by a piece of insulation foam that came off the external tank during liftoff, though the foam impact that ultimately destroyed Columbia caused more damage and was in a critical area. The mission is also referred to as ISS-13A.1 by the ISS program. Columbia had originally been selected for this flight, for what would have been its 29th mission, and its first and likely only visit to the ISS, mainly due to its heavier weight. STS-118 pilot Charles Hobaugh had been the entry team CAPCOM for STS-107. This was the first flight of Endeavour since STS-113 in November 2002, which was also the last successful shuttle flight before STS-107 which culminated in the loss of Columbia when it disintegrated during reentry. STS-118 lifted off on August 8, 2007, from launch pad 39A at Kennedy Space Center (KSC), Florida and landed at the Shuttle Landing Facility at KSC on August 21, 2007. STS-118 was a Space Shuttle mission to the International Space Station (ISS) flown by the orbiter Endeavour. ![]()
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