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It will be mated with an external tank and solid rocket boosters before its launch on mission STS-103.

NASA

NASA
Washington, DC, United States

In this aerial view, the orbiter Discovery is out of the Orbiter Processing Facility (OPF) bay 1 and rolling back before onto the tow-way for its rollover to the Vehicle Assembly Building where it will be mated with an external tank and solid rocket boosters before its launch on mission STS-103. The launch date is currently under review for early December. STS-103, the third Hubble Space Telescope servicing mission, is a "call-up" due to the need to replace portions of the pointing system, the gyros, which have begun to fail on the Hubble Space Telescope. Although Hubble is operating normally and conducting its scientific observations, only three of its six gyroscopes are working properly. The gyroscopes allow the telescope to point at stars, galaxies and planets. The STS-103 crew will also be replacing a Fine Guidance Sensor and an older computer with a new enhanced model, an older data tape recorder with a solid-state digital recorder, a failed spare transmitter with a new one, and degraded insulation on the telescope with new thermal insulation. The crew will also install a Battery Voltage/Temperature Improvement Kit to protect the spacecraft batteries from overcharging and overheating when the telescope goes into a safe mode

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  • Title: It will be mated with an external tank and solid rocket boosters before its launch on mission STS-103.
  • Location: Kennedy Space Center, FL
  • Owner: KSC
  • Album: cbabir
  • About Title: To help you find images you’re searching for, previously untitled images have been labelled automatically based on their description

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