STS-109 Extravehicular Activity 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 (PCU) 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 EVA Timeline

Mission Description:

The Third Planned HST servicing mission, (part B) will see a new science instrument: the Advanced Camera for Surveys (ACS) installed in the HST. In addition, Four large flexible solar array (SA) panels (wings) will be installed replacing the older panels so as to provide power to the observatory. Several other activities such as NICMOS Cryocooler (NCC) Installation and Power Control Unit (PCU) replacement, are planned over 5 Extra Vehicular Activity (EVA) days.

STS-109 News

 12 March 2002: STS-109 Status Report #23 Tuesday, March 12, 2002 - 4 a.m. CST, NASA JSC

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 11 March 2002: STS-109 Status Report #22 Monday, March 11, 2002 - 3:30 p.m. CST, NASA JSC

 11 March 2002: ISS On-Orbit Status 11 Mar 2002, NASA HQ

 11 March 2002: Space Shuttle Processing Status 11 Mar 2002, NASA KSC

 11 March 2002: Columbia Scheduled to Land at KSC March 12, NASA KSC

10 March 2002: STS-109 Status Report #20 Sunday, March 10, 2002 - 11 a.m. CST, NASA JSC

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9 March 2002: STS-109 Status Report #19 Saturday, March 9, 2002 - 10:30 p.m. CST, NASA JSC

9 March 2002: STS-109 Status Report #18 Saturday, March 9, 2002 - 10:30 a.m. CST, NASA JSC

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8 March 2002: STS-109 Status Report #17 Friday, March 8, 2002 - 10:30 p.m. CST, NASA JSC

8 March 2002: STS-109 Status Report # 16 Friday, March 8, 2002 - 2:30 p.m. CST, NASA JSC

8 March 2002: STS-109 Astronauts Install Experimental Camera Cooling System, NASA JSC

8 March 2002: STS-109 Grunsfeld Report #4 - 7 Mar 2002, NASA JSC

7 March 2002: STS-109 Status Report # 15 Thursday, March 7, 2002 - 10:30 p.m. CST, NASA JSC

7 March 2002: STS-109 Status Report # 14 Thursday, March 7, 2002 - 2:30 p.m. CST, NASA JSC

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6 March 2002: STS-109 Status Report # 13 Wednesday, March 6, 2002 - 10:30 p.m. CST, NASA JSC

6 March 2002: STS-109 Status Report #12 Wednesday, March 6, 2002 - 3:00 p.m. CST, NASA JSC

6 March 2002: STS-109 Crew Replaces Power Control Unit, NASA JSC

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5 March 2002: STS-109 Status Report # 11 Tuesday, March 5, 2002 - 9:30 p.m. CST, NASA JSC

5 March 2002: STS-109 Status Report # 10 Tuesday, March 5, 2002 - 12 p.m. CST, NASA JSC

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4 March 2002: STS-109 Status Report # 09 Monday, March 4, 2002 - 9 p.m. CST, NASA JSC

4 March 2002: STS-109 Grunsfeld Report #3 Grabbing the Hubble, NASA JSC

4 March 2002: STS-109 Status Report #08 Monday, March 4, 2002 - 12 p.m. CST, NASA JSC

4 March 2002: Space Shuttle Processing Status 4 Mar 2002, NASA KSC

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3 March 2002: STS-109 Status Report #07 Sunday, March 3, 2002 - 9 p.m. CST, NASA JSC

3 March 2002: STS-109 Status Report #06 Sunday, March 3, 2002 - noon CST, NASA JSC

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2 March 2002: STS-109 Status Report # 05 Saturday, March 2, 2002 - 9 p.m. CST , NASA JSC

2 March 2002: STS-109 Status Report # 04 Saturday, March 2 - 2:30 p.m. CST , NASA JSC

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1 March 2002: STS-109 Status Report #03 Friday, March 1, 2002 - 9:30 p.m. CST, NASA JSC

1 March 2002: Space Shuttle Processing Status 1 March 2002, NASA KSC

1 March 2002: STS-109 Status Report # 01 March 1, 2002 - 6:00 a.m. CST, NASA JSC

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28 Feb: Weather forecast for STS-109 launch on March 1, NASA KSC

28 Feb: Space Shuttle Processing Status 28 Feb 2002, NASA KSC

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27 Feb: STS-109 Launch Delayed by 24 Hours: The launch of Columbia on the STS-109 Hubble Servicing Mission has been delayed by 24 hours due to cold temperatures at the launch site. The next launch attempt will be at 6:22 AM EST on Friday.

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26 February 2002: Space Shuttle Processing Status 26 Feb 2002, NASA KSC

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25 February 2002: L-3 day launch weather status - STS-109, NASA KSC

25 February 2002: Space Shuttle Processing Status 25 Feb 2002, NASA KSC

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14 February 2002: Columbia to Begin Third Decade in Space with Feb 28 Liftoff, NASA HQ