2011年4月2日星期六

Mars Rover down? Spirit remains silent

Spirit-sun-mars

Wake up efforts to help her despite NASA silent to Mars Exploration Rover spirit on the red planet. There is already a year since last we heard of the little mobile robot and hope for their revival has all but faded.

For the next month continue to hear from NASA for spirit, but after this time searches back to focus on the scale of sister Rover opportunity. Way continued their marathon drive endeavour crater, more than seven years since she landed on Mars.

BIG PIC Gallery: save spirit

Spirit was as sand trap stuck in Gusev crater in 2009 and an epic mission began to try, drive the Rover buried wheels out of the trap with the aptly named "Troy." Despite the joint efforts of the Rover drivers, scientists and engineers kept in the Martian soil loose the wheels turning.

For a time was a mind to do some valuable Science despite its stationary predicament. "" In fact, Mars Rover driver Scott Maxwell said, "this much land, break like your car right next to Disney in a 2009" free spirit update "," If the amazing science comment on, which still carried out be could stand in the spirit. But take this as long as she could adjust not their position against the Sun crept Mars winter.

How the Mars shorter moved nights and the sunlight reached hardly mind solar panels until March 2010 drained their batteries and a suspended state, self-preservation deleted it. Communication with Earth and other activities were interrupted and all remaining energy in the batteries warm and mission is ticking clock was used.

NASA has always tried to revive the Rover, but after months of overpasses of Mars, it has a satellite, no signal from the spirit. However, it looks as if it is succumbed to a lack of energy and icy temperatures.

In the light of this bad news noticed today Scott Maxwell:

"Spirit was so close to us, a year ago." "Snap your fingers, and she is a hundred million miles away and we not also prove that she is alive."

If this is indeed the end of the road for spirit, it is a sad time for the Mars exploration. But it's just sad, because this little Rover Martian landscape, synonym program of planetary exploration is exemplified the spirit.


Latest spirit update:

No communication has been over a year since Sol 2210 (22 March 2010), received by the spirit.

Listen to X-band deep space network and recovery commanded further. The project has systematically spans a range of frequencies and a local solar time on Mars. This includes the possibility, which has reduced receiver of Rovers and/or the clock has since considerably drove March 2010.

The project builds the Commander of the extra long ultra-high frequency (UHF) relay passes to account for possible Rover clock drift or clock errors and make the Rover on UHF relay (if it was a mission clock error). The project is also the backup solid-state power amplifier, commanded, if the primary X-band transmitter failed. Peak solar energy for spirit on the site of Gusev estimated again around 10 occurred in March 2011.

Total path and speed measurement is unchanged 7,730.50 meters (4.80 km).


Image: This synthetic picture of the spirit Mars Exploration Rover on a rock named "Jibsheet" with "Virtual presence in space" technology produced. Credit: NASA/JPL-Caltech/Cornell





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