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John Grunsfeld Reports: STS-109 Edition of Notes from Space
posted: 30 June 2005
04:50 am
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Columbia astronaut John Grunsfeld is offering a first-person account of his crew's mission to service the Hubble Space Telescope, e-mailing to Earth a daily journal of the activity and his thoughts about how things are going and what he feels. You can find his reports on NASA's Human Spaceflight Web site or by following the direct links below. Current MessageEVA Day 3 -- PCU day, the power control unit changeout. The PCU is the main power relay box for the whole Hubble Space Telescope. A problem with the old one threatened to end the telescope's life early, so it was decided by NASA to change it out. The interesting part is that the box is not really designed for change-out by space walkers. Full Report
Report No. 1: Introduction The Space Shuttle Columbia sits ready on the launch pad at the Kennedy Space Center, with a payload bay filled with the Advanced Camera for Surveys (ACS), new solar arrays, a reaction wheel, power system components, and a new scientific instrument cooling system for the Near Infrared Camera and Multi-Object Spectrometer (NICMOS). Full Report
Report No. 2: Liftoff The launch count was just about as smooth as it could be. Lying on our backs, fully dressed in our orange launch suits and parachutes, the wait for liftoff was not particularly comfortable. As the count progressed it was clear to us that any concerns about clouds or winds were not going to stop our trip up to the Hubble. Full Report
Report No. 3: Grabbing the Hubble "A firm handshake with Mr. Hubble the telescope." Those were the historic words from the crew on the first servicing mission of the Hubble Space Telescope almost 10 years ago. Hubble is now firmly held in the berthing ring in the payload bay of Columbia, and the telescope is still a beautiful sight, after nearly 12 years on orbit. Full Report
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