Opportunity is exploring 'Marathon Valley' on the rim of Endeavour crater. The rover is up on very steep slopes to reach high-value science targets on 'Knudsen Ridge.'

For the past week, Opportunity has been collecting extensive Pancam panoramas of the location all around Knudsen Ridge.

One important purpose is to collect detailed imagery of the surface targets that the rover will approach next for detailed in-situ (contact) investigation.

As of Sol 4282 (Feb. 9, 2016), the solar array energy production was 493 watt-hours with an atmospheric opacity (Tau) of 0.443 and a solar array dust factor of 0.675.

Total odometry is 26.51 miles (42.66 kilometers), more than a marathon.