A glitchwith one of the key instruments ? an imaging spectrograph ? aboard the HubbleSpace Telescope continues to plague the 19-year-old spacecraft after attempts lastweek to fix the problem, NASA said today.
Mission managers regrouped today to decidewhat their next steps should be to fix the anomaly with the Space TelescopeImaging Spectrograph (STIS) that caused the Hubble team to suspend theinstrument's operations July 6.
"We'remaking sure we understand it fully," Ed Ruitberg, a Hubble Program Managerat NASA's Goddard Space Flight Center in Greenbelt, Md., told SPACE.com.
"We'renot going to turn it fully operational until we know [more about theproblem]," Ruitberg said, though he's optimistic the instrument will fullyrecover.
While theglitch has delayed the preparation of STIS for science operations, "itdoesn't affect the other instruments," Ruitberg said.
The STISglitch came a few weeks after a separate glitch that froze the observatory'snew data handling unit, installed by shuttle astronauts in May during the fifthand finalservicing mission of the telescope. That glitch was resolvedin mid-June.?
On ahappier note, a third glitch, with one of Hubble's cameras, was resolved lastweek.
?Hubble'sAdvanced Camera for Surveys (ACS) suspended operations on June 24 after theinstrument's flight software detected a problem in its new electronics box. Mission controllers were able to revive the camera on July 6.
"Webasically just had to re-initialize the instrument and it came back up andrunning," Ruitberg said.
ACS hasfinished its Servicing Mission Observatory Verification, or SMOV program, andis ready to do science, though there's still a chance that the glitch couldoccur again. The team is working on mitigation strategies in case that happens,Ruitberg said.
"Everythingelse is going very well," he added.
- Video ? Home Movies from Hubble
- SPACE.com Show: Hubble's Final Shuttle Service Call
- Images ? Hubble's Latest Views of the Universe: Part 1, Part 2
