[meteorite-list] Mars Rover Opportunity Update: March 22-27, 2012

From: Ron Baalke <baalke_at_meteoritecentral.com>
Date: Sun, 1 Apr 2012 20:24:42 -0700 (PDT)
Message-ID: <201204020324.q323OgqD011242_at_zagami.jpl.nasa.gov>

http://marsrovers.jpl.nasa.gov/mission/status.html#opportunity

OPPORTUNITY UPDATE: Slight Drop of Left-Front Wheel -
sols 2901-2906, March 22-27, 2012:

Opportunity is positioned on the north end of Cape York on the rim of
Endeavour Crater with an approximate 15-degree northerly tilt for
favorable solar energy production.

Radio Doppler tracking passes for the geo-dynamic investigation were
performed on Sols 2903 and 2904 (March 24 and 25, 2012). Atmospheric
argon measurements were performed with the Alpha Particle X-ray
Spectrometer on Sols 2904 and 2905 (March 25 and 26, 2012). Additional
Panoramic Camera (Pancam) images were taken on several sols.

The project is continuing to investigate the anomalies from Sol 2899
(March 20, 2012), that indicates apparent downward motion of the
left-front wheel and a stall in the robotic arm (Instrument Deployment
Device, or IDD). On Sols 2901, 2904 and 2906 (March 22, 25 and 27,
2012), further imaging of the rover's position and detail imaging of the
Mossbauer (MB) spectrometer on the end of the IDD were performed along
with a series of diagnostic robotic arm motions. The IDD moved without
any problems. Motor currents and actuator motion were all nominal.
Detailed images of the M?ssbauer spectrometer showed no evidence of any
off-nominal contact with the ground. Careful review of the left-front
wheel suggests that the wheel might have moved more than one time,
although these are very small motions (a few millimeters). No other
wheel has shown any indication of motion. The project continues to
assess the left-front wheel stability.

As of Sol 2906 (March 27, 2012), solar array energy production was 306
watt-hours with an atmospheric opacity (Tau) of 0.521 and a solar array
dust factor of 0.488.

Total odometry is unchanged at 21.35 miles (34,361.37 meters).
Received on Sun 01 Apr 2012 11:24:42 PM PDT