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Spirit Drained As Martian Dust Storms Continue
Pasadena CA (JPL) Dec 02, 2008 - Spirit's condition has improved during the past week, though skies remain fairly dusty after the recent Martian dust storm. Since sol 1730 (Nov. 14, 2008), solar-array energy has averaged 169 watt-hours (100 watt-hours is the amount of energy needed to light a 100-watt bulb for 1 hour). The latest measurement of atmospheric darkness caused by dust, known as Tau, is 0.858. The dust factor, representing the portion of sunlight penetrating the coating of dust on the solar panels, is 0.2912.
Dec 2, 2008