As of last
Opportunity started exhibiting memory
this month similar to events seen with Spirit in
2009. This is not a health and
safety concern, but can cause
loss of some data intended for downlink. It can
for more important data by downlinking before any rover nap.
suspect cause is corruption in the flash file system
used by the rover for
non-volatile telemetry storage. The
project implemented a detection diagnostic
on Sol 3189 (Jan.
12, 2013) to flag the occurrence of these events in separate
non-volatile memory. No events have occurred since Sol 3183
(Jan. 6, 2013),
and the rover remains in good health.
As of Sol 3193 (Jan. 16, 2013),
the solar array energy
production was 498 watt-hours with an atmospheric
(Tau) of 1.08 and a solar array dust factor of 0.623.
odometry is 22.03 miles (35455.34 meters).
So it is
starting to wear out. Arthritic joint in its
arm, bad wheel bearing, and now
signs of memory corruption.
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