spacetoday.net: space news from around the webin association with SpaceNews


FUSE spacecraft in safe mode
Posted: Fri, Dec 14, 2001, 8:05 PM ET (0105 GMT)
FUSE spacecraft illustration NASA's Far Ultraviolet Spectroscopic Explorer (FUSE) spacecraft entered safe mode earlier this week because of a reaction wheel problem, project officials said Friday. On December 10 the second of four reaction wheels on FUSE stopped spinning, triggering a safe mode condition where the spacecraft stops scientific operations and orients its solar panels towards the Sun. The first reaction wheel shut down last month. Engineers have been unable to spin up the wheels, and are looking at an alternative method for attitude control using magnetic torquer bars on the spacecraft. Engineers and managers at NASA, Johns Hopkins University, and Orbital Sciences Corporation are looking into this alternative but did not mention when they believe when the spacecraft's attitude control will be restored. FUSE was launched in June of 1999 on a three-year mission to study the universe at far ultraviolet wavelengths.
Related Links:
<<previous article   next article>>
news in brief
Kepler goes into safe mode as fuel runs low
Posted: Sun, Jul 8 9:43 AM ET (1343 GMT)

Inmarsat rejets EcoStar takeover bid
Posted: Sun, Jul 8 9:42 AM ET (1342 GMT)

Shuttle-era engine tested for DARPA spaceplane
Posted: Sun, Jul 8 9:41 AM ET (1341 GMT)

news links
Sunday, July 22
Space interest gets boost from Orlando Science Center
Orlando Sentinel — 9:08 am ET (1308 GMT)


about spacetoday.net   ·   info@spacetoday.net   ·   mailing list