MSL drove nearly 17 meters on Sol 1571, to a location with bedrock outcrops in the arm workspace.
MSL drove nearly 17 meters on Sol 1571, to a location with bedrock outcrops in the arm workspace.
So the weekend plan includes lots of arm work as well as remote
observations. On Sol 1572, MAHLI will take images of the REMS booms
to diagnose recent problems with the wind sensors. Some of the wind sensors on one boom have not functioned since landing, and sensors on the
other boom have been acting up lately . Later that afternoon, MAHLI will take a couple images of a
yellow/red color boundary at “Greenstone” and a full
suite of images of a yellow bedrock target named “Isle Au Haut.” The
APXS will then be placed on Isle Au Haut for an overnight integration.
Early on the morning of Sol 1573, Navcam will search for clouds and
Mastcam will measure the amount of dust in the
air by imaging the Sun and the distant crater rim. These dust
measurements will be repeated at two other times of day later that sol.
Later that morning, ChemCam will acquire passive (no laser)
observations of its calibration target. Then the arm will go
to work again to perform new diagnostic tests of the drill feed
mechanism, to help us understand whether the drill feed stall is more sensitive to rotary-only or percussive
drilling. The test data
acquired to date indicate an intermittent problem with the
internal brake within the motor that feeds the drill forward and
backward relative to the rest of the turret.
Fortunately, we
are able to do everything except drilling while the investigation
continues, but the team has decided not to try again to drill at
Precipice, and to continue driving up the flank of
Aeolis Mons (“Mount Sharp”).
After
the drill tests, ChemCam will perform some more calibration activities,
and acquire LIBS data on Greenstone and a bedrock exposure called
“Birch Harbor Mountain.” The Right Mastcam
will then image these targets and bright vein targets dubbed
“Tarrantine” and “Flying Mountain.” On Sol 1574, ChemCam and Right
Mastcam will observe Isle Au Haut before the rover drives away. After
the drive, the arm will be unstowed and Navcam will take
a stereo pair of images of the arm workspace to set us up for possible
contact science on Sol 1575. It will be another busy weekend for our
intrepid rover!
by Ken Herkenhoff Dates of planned rover activities described in these reports are subject to change due to a variety of factors related to the Martian environment, communication relays and rover status.
Written by Ken Herkenhoff, Planetary Geologist at USGS Astrogeology Science Center