Elaina McCartney, SOWG Documentarian
John Grant, SOWG Chair

August 19, 2002

Pre-downlink:

Resources predicted: 669 WHr, 10.91 Mb DTE, UHF allocation 24.55, 30 minutes FIDO time, 70m coverage. There is no data left in the buffer.

Uplink review:

Sol 25 was a spectroscopy sol on Black Lab. Sequence began with Mini-TES observations, Pancam mosaic of Camelback area (frame placement may be different from what was intended), CMI on Prieta, short APXS, short Moessbauer, RAT, CMI on soil, APXS on soil, Moessbauer on soil, sequence ends with arm still deployed. Mini-TES, APXS, Moessbauer, and Front Hazcams are expected on the DTE.

Assignments:

Think about high priority Pancam, given shift in frame placement. We have 30 minutes of operations, and the many creative solutions to add FIDO time will not be considered in this test. Three options to consider:

• If the Sol 25 sequence successfully executed, plan the sniff of the Scratch&Sniff
• If we didn't successfully RAT, use IDD for target of opportunity
• If IDD can't be used, plan remote sensing.

Atmosphere group is deferring full sky pan to Sol 27.

Science Assessment Meeting

DTE downlink indicates that placement of the IDD was successful, and there has been successful RATting of the dark rock target on Black Lab.

Rover state of health: Rover is in good health, arm is deployed at expected location with Moessbauer in contact. Sequence executed three minutes under expected time.

First activity of the Sol 26 sequence must be to move the IDD off the current arm target to a known location.

Tactical Downlink Assessment:

• Atmospheres: Estimated rover heading is the same as on previous sols. Three Mini-TES and one sky observation, in collaboration with the other theme groups to prioritize. No visible storms.
• Mineralogy: Mini-TES on quartz and quartz-like rocks, Mini-TES on and off the RATted rock, repeat an IPS scan from a previous sol to improve data (low priority), Moessbauer and APXS retransmit requested from Sol 24. Single touch on the RATted rock requested.
• Geology: Pancam won't come down until UHF, so have planned targets. Black Lab remains the priority target, in the context of the end of the mission.
• Soils: Expected decent spectroscopy data based on arm placement.
• Long Term Planning: In situ spectroscopy is planned for this sol. Two in situ targets would take about 20 minutes, which would leave 10 minutes for other science and stowing. IPS calibration is desired, but higher priority is Pancam imaging and MiniTES. Second in situ measurement may have to be cut.
• Test Director rules that we must stow the mast and the IDD at the end of this sol.
• Test Director rules that we can turn on APXS and Moessbauer at the same time (but can't read them out at the same time).

After the sequences are built, we need to trade between doing in situ measurements on two targets, acquiring supporting Pancam wedges, and doing any IPS.

SOWG Meeting

Rover state of health: No change. No specific requests, other than that the first command be to move the arm to a standoff position.

Resource predicts: No change.

Tactical Operations Summary:

Operations are constrained to 30 minutes.

• Mineralogy: Request Mini-TES on center of RATted rock and on soil adjacent to the RATted rock, and third priority (after Atmospheres) is a second MiniTES on rock center.
• Atmospheres: Mini-TES north at 30, 20, and 10 degrees elevation.
• Geology: Interested in spectroscopy on gradation across RATted annulus. RAT engineer expects lighter part of RATted area to be dust.
• Pancam collaboration: Top tier (3) looking back at lander is the first priority (lander localization). Next priority is center of bottom tier (2) to image cutbank at end of channel to look at structure and possible soil horizon. Then sky image looking near the sun, 25 degrees elevation (1 image, first or last). Next outside of lower tier (2). Then middle tier (3). Final priority, cal target for dust deposition (1).
• Min: single IPS scan in center channel 1x5 calibration dolomite. Priorities: Highest in situ on rock, retransmit, followed by MiniTES, then IPS scan.
• In situ sequence analysis: Arm standoff, CMI stepdown, Hazcam, APXS, Haz, Moessbauer looking at sky.

Considerations:

• Question whether there is a high risk (operating instruments simultaneously) of corrupting unique APXS data on the RATted rock. Moessbauer sky request is to analyze possible dust contamination of the instrument in order to interpret data (instrument health check). Second touch, from science perspective, falls below Pancam in priority.
• Want to minimize velocity noise in Moessbauer instrument.
• Engineering wants arm lifted before deploying mast to do remote sensing.
• DTE: Mini-TES, Hazcam images, APXS and Moessbauer (and IPS if it's included), and fill any other room with Pancam. No Hazcam to verify rotation to Moessbauer.
• Plan next sol as if it were a Panorama Sol (for example, Navcam pair into the Long Canyon from this position).

Science Observation Plan Summary:

Move arm to standoff position

Mast work (IPS is deleted during SOWG using SAP resource graph tool)

IDD work

Stow mast at end

Tactical Uplink Summary:

Did not include second "touch" on this sol.

Total of four Hazcam were sequenced (needed for placement verification).

There was extra time, so IPS calibrations were added to understand instrument health.

Retransmit of Sol 24 spectra was requested.

Got 3x2 Pancam on DTE, because good end of mission product.

Other Pancam images coming on UHF.

Sequenced 8 CMI series (UHF), followed by APXS, Moessbauer, and Moessbauer looking sideways to characterize instrument dust.

Arm is being left unstowed at end of sol.

Sequence radiation was followed by a high-level discussion of mission science findings from all the theme groups. These will be organized into a presentation.

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