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MER Spirit - Trek over Husband Hill
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Cleaning Event
These two images from 10 days apart show that dust
was removed from the panoramic camera's
calibration target on NASA's Mars Exploration
Rover Spirit. Spirit's panoramic camera took the
picture on the left on the rover's 416th martian
day, or sol, (March 5, 2005) and took the picture
on the right on sol 426 (March 15, 2005). During
the time in-between, other evidence of
dust-lifting winds were a jump in power output by
Spirit's solar arrays on sol 420 from removal of
some accumulated dust, and sighting of two dust
devils in sol 421 images from Spirit. The size of
the base plate on the calibration target shown in
both of these images is 8 centimeters on each side.
Image and text credit: NASA/JPL-Caltech
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