Although the depth of the winter solstice is still a week or more away, energy levels have improved for Opportunity. One contributor is the improvement in solar array dust factor as winds blow some of the dust off the arrays. That said, the rover did spend one sol, Sol 4906 (Nov. 11, 2017), as a recharge sol.
On Sol 4903 (Nov. 8, 2017), Opportunity continued a multi-sol integration of the surface target, called "Mesilla" using the Alpha Particle X-ray Spectrometer (APXS). The rover also continued to collect the extensive Panoramic Camera (Pancam) panoramas as part of the comprehensive digital survey of the valley.
On Sol 4907 (Nov. 12, 2017), the rover drove 30 feet (9 meters) to the northeast set up for another surface target investigation and more imaging.
As of Sol 4909 (Nov. 14, 2017), the solar array energy production was 393 watt-hours with an atmospheric opacity (Tau) of 0.410 and an improved solar array dust factor of 0.619.
Total odometry is 27.99 miles (45.05 kilometers).
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