Status Report

STS-109 Astronauts Install Experimental Camera Cooling System

By SpaceRef Editor
March 8, 2002
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STS-109 Extravehicular Activity

  • STS-109 Mission Guide
  • EVA Operations Reference

  • STS-109 EVA Timeline

  • Spacewalk Number One, Flight Day Four: Replace -V2 Solar Array and
    Diode Box Assembly, Install Diode Box Controller Cross Strap Harness

  • Spacewalk Number Two, Flight Day Five: Replace +V2 Solar Array and
    Diode Box Assembly and Reaction Wheel Assembly-1

  • Spacewalk Number Three, Flight Day Six: Replace Power Control Unit

  • Spacewalk Number Four, Flight Day Seven: Replace Faint Object Camera
    with the Advanced Camera for Surveys, Install Electronics Support Module
    and Perform Power Control Unit Cleanup Tasks

  • Spacewalk Number Five, Flight Day Eight: Install the Near-Infrared Camera
    and Multi-Object Spectrometer (NICMOS) Cryogenic Cooler and NICMOS
    Cooling System Radiator

  • The STS-109 crew is performing its fifth space walk to service and upgrade the Hubble Space Telescope Friday morning. The primary objective of this excursion, which is being conducted by Mission Specialists John Grunsfeld and Rick Linnehan, is the installation of an experimental cooling system onto Hubble’s Near-Infrared Camera and Multi-Object Spectrometer (NICMOS).

    The space walk began at 2:46 a.m. CST (0846 GMT) and is slated to wrap up about 9:16 a.m. CST (1516 GMT) today.

    NICMOS operates at extremely low temperatures, but it has been dormant since 1999 when its coolant was depleted earlier than expected. It is hoped that the cooling system will allow NICMOS to come back online.

    Once again, the space walkers are receiving assistance from inside Space Shuttle Columbia. The primary robotic arm operator is Mission Specialist Nancy Currie. Mission Specialists Jim Newman and Mike Massimino are coordinating space walk activities, and Commander Scott Altman and Pilot Duane Carey are documenting the extravehicular activity with still images and video.

    Following the space walk, Altman and Carey will fire Columbia’s jets in a series of pulses to raise the telescope’s orbit by 6 kilometers (3.7 statute miles).

    SpaceRef staff editor.