Recent Multispectral Imaging Results from the Pancam Instruments on the Mars Exploration Rovers Spirit and Opportunity

Mathematics – Logic

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5400 Planetary Sciences: Solid Surface Planets, 5464 Remote Sensing, 6225 Mars, 6297 Instruments And Techniques

Scientific paper

As of early September 2006, the Mars Exploration Rover Panoramic Camera (Pancam) instruments have acquired more than 57,000 and 52,000 multispectral images, respectively, from the rovers' landing sites and traverse paths within Gusev crater and Meridiani Planum. These observations include more than 950 and 600 full multispectral imaging observations, respectively, in the 11 distinct near-UV to near-IR wavelengths sampled by the Pancams. Both rovers have faced challenges in their exploration activities during 2006 because of power restrictions imposed by the low-Sun, southern hemisphere winter conditions. Still, major science campaigns have been conducted at both landing sites. At Gusev, Pancam imaging documented major geomorphic and color units during the Spirit rover's traverse down the south side of Husband Hill and across the Southern Basin to the possible volcanic or impact feature known as Home Plate. More recently, at Spirit's "Winter Haven" stationary location in Gusev crater, a full-resolution, 360 degree, low-compression panorama (the "McMurdo" panorama) has been obtained using all of Pancam's filters. In Meridiani, the geology and color properties of the terrain during Opportunity's traverse south from Erebus crater to its current location at the rim of Victoria crater has been documented in detail by Pancam multispectral imaging, including a number of albedo measurements and other coordinated observations with orbiting NASA and ESA spacecraft designed to enhance surface-orbital "ground truth" connections. Panoramas, mosaics, and multispectral analysis results from these recent Pancam data sets will be summarized and discussed in terms of their geologic context and complimentarity to other MER remote sensing and in situ investigations and results obtained during this past year.

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