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Ken Herkenhoff • Jan 22, 2014

Curiosity update, sols 488-520: Steady driving while watching the wheels

Editor's note: This blog is reposted with permission from the United States Geological Survey Astrogeology Science Center website. Images have been added by me. My favorite place to browse these images is midnightplanets.com. My favorite place to follow the rover's driving progress is curiositylog.com. Read this for an introduction to Herkenhoff's blog posts. --ESL

Sol 488: Damage Assessment (19 December 2013)

The Sol 488 plan includes ChemCam and Mastcam observations of the Cumberland drill sample that was dumped in front of the rover, completing the campaign on the dump pile. Then MAHLI will be used to image the rover's wheels, to more completely assess any damage.

MAHLI image of Cumberland dump pile, sol 487
MAHLI image of Cumberland dump pile, sol 487 Image: NASA / JPL / MSSS / Emily Lakdawalla

Sol 489-491: Wheel Imaging Campaign (20 December 2013)

The 3-sol weekend plan starts with targeted remote science (ChemCam and Mastcam observations), then completion of the thorough wheel imaging campaign. MAHLI and Mastcam images of the wheels are planned to document wear, and MARDI images of the terrain near the left front wheel will also be acquired. I'll be on vacation for a week, but plan to monitor MSL's progress.

Sol 502: Back to Full Science Operations (2 January 2014)

The MSL rover completed the relatively light set of activities planned for the recent holiday, and is now ready to resume full science operations. The Sol 502 plan includes lots of ChemCam and Mastcam observations, plus some RMI images of the right-side wheels.

During the holiday break from tactical operations, I was happy to help John Grotzinger finalize his excellent new blog. I'm expecting that MSL will continue to produce such interesting results in 2014!

Sol 503: Fully Re-engaged (3 January 2014)

The MSL tactical operations team is fully re-engaged after the holiday break, planning a bunch of activities to keep the rover busy this weekend. Sol 503 starts with remote sensing observations, followed by MAHLI and APXS measurements of a couple of targets in front of the rover. Sol 504 is dominated by driving, with new MAHLI and Mastcam images of the wheels. Finally, untargeted remote sensing and CheMin data processing are planned for Sol 505.

As was noted during both MER and MSL SOWG meetings today, January 3rd is the 10th anniversary of Spirit's successful landing on Mars. No data have been received from Spirit since March 2010, but Opportunity is still operating!

Sol 506: 10th Anniversary of MER Landings (6 January 2014)

The CheMin data processing planned for Sol 505 was deleted from the plan, but SAM made another measurement of the atmosphere that night. The Sol 504 drive went well, and the rover is in a stable position, so a "touch and go" is planned for Sol 506. First, MAHLI images and APXS data will be acquired on a rock named "Oneida" in front of the rover. Then the rover will drive about 26 meters and take the usual post-drive images to allow planning the next drive and new scientific activities. Images of the wheels will be taken both during and after the drive.

I'll be traveling starting tomorrow to a meeting of the MER science team in Maryland, so it will be difficult for me to follow MSL's progress this week. But I'm looking forward to discussing the latest Opportunity results and celebrating the 10th anniversary of the MER landings.

ChemCam/Mastcam mosaic of Mount Sharp dunes and foothills, sol 507
ChemCam/Mastcam mosaic of Mount Sharp dunes and foothills, sol 507 Curiosity used the ChemCam Remote Micro-Imager (RMI) on sol 507 as a telescope to look at detail in the distant foothills of Mount Sharp. The image has been colorized with a lower-resolution Mastcam image.Image: NASA / JPL / LANL / CNES / IRAP / MSSS / Greenish / Vitaliy Egorov

Sol 512: Kodak (13 January 2014)

The weekend activities executed as planned, and the rover is in a good location to start a full campaign of wheel imaging. Originally, a short drive or "bump" was planned for Sol 512 to get the rover in position for wheel imaging. Because this bump was not needed, more time was available for contact science. This meant the Science Theme Groups and I (as SOWG Chair) had a hectic morning, preparing for both contingencies as the rover planners evaluated the data to determine whether the bump was needed. We ended up adding an additional APXS/MAHLI target for contact science, including an overnight APXS integration on "Kodak." Planning is unrestricted this week, and due to the timing of the uplink we had to start earlier than usual, at 6:00 Pacific time this morning.

Sol 513: Early Planning (14 January 2014)

I'm SOWG Chair again today, planning Sol 513, which will be dominated by a full set of MAHLI images of wheels. The images will be taken between short drives, to turn the wheels a bit and allow the entire surfaces of the wheels to be imaged. This will require a fair amount of power, so the main constraint on science planning was ensuring that we don't take too much charge out of the battery. But we were still able to add some post-drive science, including a DAN active measurement of hydrogen below the surface, a Navcam cloud search, and the usual imaging needed to plan targeted observations on Sol 514. The command sequences must be sent to the rover by about 5 PM Pacific time, so planning started 1.5 hours earlier than usual--not as early as yesterday though, when it was still dark when I drove in to work.

Curiosity wheel survey, sol 513
Curiosity wheel survey, sol 513 On sol 513 (January 15, 2014), Curiosity performed a series of short drives followed by MAHLI imaging of each of the wheels, to survey their condition. Here, the images have been sorted and the inter-cleat spaces numbered to make it easier to survey the locations of specific marks, tears, and punctures.Image: NASA / JPL / MSSS / Emily Lakdawalla

Sol 514: Nearby Rocks (15 January 2014)

Today was a busy planning day, as we put a lot of activities into the Sol 514 plan. We used the data acquired after the "bump" on Sol 513 to pick a couple of interesting nearby rocks for thorough ChemCam and Mastcam observations. Then one last set of MAHLI images of the wheels will be taken before the rover drives about 30 meters toward the SSW. Today was my last day as SOWG Chair this month, and I'm happy about the way it went.

Colorized Curiosity panorama, late afternoon of sol 514
Colorized Curiosity panorama, late afternoon of sol 514 This panorama was composed of images captured at about 4:00 p.m. local time at the Curiosity landing site on sol 514 (January 16, 2014). It has been artistically colorized. The setting sun lights up the distant eastern rim of Gale crater.Image: NASA / JPL / Damia Bouic

Sol 515 - 518: Oscar Contention (17 January 2014)

The drive planned for Sol 514 did not complete due to a sequencing error, so the error was corrected and successfully implemented on Sol 515. The post-drive data look good, so targeted remote sensing contact science is planned for Sol 516, including ChemCam, Mastcam, APXS and MAHLI observations of a rock dubbed Oscar. More targeted remote sensing is planned for Sol 517, then another drive (about 16 meters) with wheel imaging on Sol 518. The rover will be busy again this weekend!

Sol 520: No Rest for the Rover (22 January 2014)

Another drive was planned on Monday, despite the federal holiday, and it went well. The images taken after that drive were used to plan targeted remote sensing (Mastcam and ChemCam) on rocks dubbed Doran and Togo on Sol 520. Then another drive was planned to get the rover in position for another set of wheel images, which are planned every time the rover has driven 100 meters.

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