Hubble begins new operation

Published: Sep 02, 2005
Source: www.spaceflightnow.com



NASA's Hubble Space Telescope entered a new era of science operations this week, when engineers shut down one of the three operational gyroscopes aboard the observatory. The two-gyro mode is expected to preserve the operating life of the third gyro and extend Hubble's science observations through mid-2008, an eight-month extension.

This conclusion followed detailed analysis by engineers and scientists at NASA's Goddard Space Flight Center, Greenbelt, Md., and the Space Telescope Science Institute (STScI) in Baltimore. Thorough testing of the two-gyro mode was completed prior to implementation.

The gyros are an integral part Hubble's complex pointing control system. The system maintains precise pointing of the telescope during science observations. The system was originally designed to operate on three gyros, with another three in reserve. Two of the six are no longer functional.continue..