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 by Staff Writers Pasadena CA (JPL) Apr 03, 2018
Opportunity is continuing the exploration of "Perseverance Valley" on the west rim of Endeavour Crater. The rover is positioned about halfway down the approximately 656 feet (200-meter) valley. Opportunity is investigating the surface target called, "Aguas Calientes," an exposed rock outcrop. Although the target had been ground already, the science team wanted to grind "Aguas Calientes" another 2 millimeters deeper. On Sol 5032 (March 20, 2018), the Rock Abrasion Tool (RAT) was placed back into the ground hole and ground further. During the grind the Inertial Measurement Unit (IMU) reported a questionable flag. However, the IMU was tested again on Sol 5035 (March 24, 2018) and was found to be healthy. After the deeper grind, the Microscopic Imager (MI) collected a mosaic of the grind and then the Alpha Particle X-ray Spectrometer (APXS) was placed for a multi-sol integration. The rover also collected a set of 13-filter Panoramic Camera (Pancam) images of selected targets. On Sol 5035 (March 24, 2018), the robotic arm offset the APXS for further integrations, along with the IMU test, and imaged the RAT bit for wear. No additional bit wear was seen after the grind. By Sol 5038 (March 27, 2018), the in-situ (contact) work on "Aguas Calientes" was finished and the rover bumped away about 7.5 feet (2.3 meters). As of Sol 5038 (March 27, 2018), the solar array energy production was 670 watt-hours with an atmospheric opacity (Tau) of 0.524 and an improved solar array dust factor of 0.830. Total odometry is 28.04 miles (45.12 kilometers).
Opportunity making extensive study of rock target Aguas Calientes Washington DC (SPX) Mar 28, 2018 Opportunity is continuing the exploration of "Perseverance Valley" on the west rim of Endeavour Crater. The rover is positioned about half way down the approximately 656 feet (200-meter) valley. Opportunity is engaged in an extensive in-situ (contact) science campaign on the surface target called "Aguas Calientes," an exposed rock outcrop. After previously brushing the surface, on Sol 5026 (March 14, 2018), the rover used the robotic arm (IDD) to collect a Microscopic Imager (MI) mosai ... read more
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