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MARSDAILY
Winter Solstice Just Three Weeks Away For Spirit

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by Staff Writers
Pasadena CA (SPX) Apr 28, 2010
Spirit remains silent at her location called "Troy" on the west side of Home Plate. No communication has been received from the rover since Sol 2210 (March 22, 2010).

It is likely that Spirit has experienced a low-power fault and has powered off all sub-systems, except her master clock. The rover will use the available solar array energy to recharge her batteries.

When the batteries recover to a sufficient state of charge, Spirit will wake up and begin to communicate. When that does happen, Spirit will also trip an up-loss timer fault.

This fault response will allow the rover to communicate over Ultra-High Frequency (UHF) as well as X-band.

It is not know when the rover will wake up, so the project has been listening for any X-band signal from Spirit through the Deep Space Network every day.

The relay orbiters are also listening over any scheduled UHF relay passes. The winter solstice is just three weeks away (Sol 2261, or May 13, 2010).

Total odometry is unchanged at 7,730.50 meters (4.80 miles).



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MARSDAILY
Picking Up Pace To Endeavour Crater
Pasadena CA (JPL) Apr 16, 2010
Opportunity has picked up the pace a little as she presses on toward Endeavour crater, recharging her batteries between drives. First, the rover must clear a region of large ripples, so Opportunity is heading south before the turn to the East. Sols 2206 (April 8, 2010) and 2208 (April 10, 2010), each saw a roughly 50-meter (164-foot) drive straight south. On Sol 2211 (April 13, 2010) ... read more









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