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  Mission Updates :: Early January

Mission Updates
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Read how the mission unfolds week by week, day by day,
as the date of the shuttle launch approaches.

The Hubble Project
Excerpt from the Hubble Press Kit
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Reaction Wheel AssemblyThursday | Jan. 10, 2002
One of four reaction wheel assemblies (RWA), which is part of Hubble's pointing control system, will be replaced by a refurbished unit. Spin momentum in the reaction wheels moves the telescope into a commanded position and maintains it there in a stable position.

Kennedy Space Center
Vehicle: Columbia/OV-102
Shuttle & Payload Processing Status Report

Thursday | Jan. 10, 2002
Shuttle managers made the decision today to reschedule the launch of the STS-109 mission to Thursday, Feb. 28 to allow more preparation time for a replacement Reaction Wheel Assembly that will be installed on the Hubble Space Telescope.

In the Orbiter Processing Facility (OPF), forward and aft closeout operations of Shuttle Columbia are in progress in preparation for roll out to the Vehicle Assembly Building for space vehicle mate.

Thursday | Jan. 3, 2002
Pre-launch operations have resumed in the Orbiter Processing Facility (OPF) after the Christmas holidays, preparing Columbia for the Hubble Space Telescope servicing mission scheduled for no earlier than Feb. 21.

Verification testing of replaced Auxiliary Power Unit No 3 is complete and fuel connections will be worked this weekend. Forward and aft closeouts are in progress.


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