(180 kilograms) of fuel left when
the gyroscope failed.
Then SOHO's last
gyroscope failed, forcing mission managers to develop a new way of keeping SOHO stable.
Kepler was approved far beyond its original mission length and was operating well until May 2013, when a second of its four reaction wheels or
gyroscopes failed.
Not exact matches
BeppoSAX has only one
gyroscope that still works, but if it
fails, a clever software fix will soon allow the craft to navigate, says John Heise of the Space Research Organization Netherlands in Utrecht.
Ideally, however, a «telerobotics» approach would let mission controllers replace Hubble's aging batteries and pointing - control
gyroscopes, now projected to
fail by 2007, O'Keefe said.
Without proper maintenance, the
gyroscopes could
fail.
Since the second Servicing Mission in February 1997, three of Hubble's six
gyroscopes had
failed, causing some concern among NASA officials.
Two of the three
gyroscopes had
failed, but the rest of its instruments appeared to be fine.