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BillsBlots
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re: Updated: NASA releases first color image from Curiosity
BillsBlots   8/9/2012 2:14:01 PM
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Great updates, thanks. I haven't exhausted every resource by any means, but doesn't Curiosity have a "nuclear" power source instead of solar panels? I've looked around a bit but haven't found much on it, considering this is a remarkable difference from previous space craft or 'rovers'.

seaEE
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re: Updated: NASA releases first color image from Curiosity
seaEE   8/9/2012 3:16:49 AM
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Looking forward to more photos, and this got me wondering: how long might the Curiosity outlive its official mission life? And how far could it travel? In theory, if there were no major obstacles, like the Grand Canyon of Mars, could it travel to one of the poles (and what is its top speed?), or will its mission be lived out entirely in the crater area?

george.leopold
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re: Updated: NASA releases first color image from Curiosity
george.leopold   8/8/2012 11:15:23 PM
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Good piece in Nature on the future of planetary exploration: http://www.nature.com/nature/journal/v488/n7410/full/488129b.html?WT.ec_id=NATURE-20120809 Bottom line: Unless NASA gets a budget increase, Curiosity is likely to be the last U.S. rover to land on Mars for the foreseeable future.

george.leopold
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re: Updated: NASA releases first color image from Curiosity
george.leopold   8/8/2012 6:22:11 PM
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Highlights from today's (8/8) Curiosity briefing: -All rover antennas and links are deployed and working "perfectly" -100 Mbytes relayed back to Earth during Sol 2 (second day on the Martian surface) -Surface temperature at Gale Crater a little warmer than expected. -a 360-degree panorama of the landing site is expected to be taken on Sol 3 -Rocket motors on sky crane provided some "free trenching" of the surface that exposed bedrock. "We've already got an exploration hole drilled for us," said John Grotzinger, JPL project scientist -Official landing time for Curiosity at Gale Crater was 10:17 p.m. PDT, but signal was not received on Earth until about 10:32 p.m. PDT. -JPL image managers showed an image of a line of small impact craters made by ballast weights dropped before touchdown that were used to leverage the lander's angle of attack during descent. There are no plans to drive to these spots. Much more to come.

george.leopold
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re: Updated: NASA releases first color image from Curiosity
george.leopold   8/8/2012 4:28:01 PM
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NASA/JPL reports that Curiosity's mast containing its seven of the rover's 17 cameras has been successfully deployed. View the first picture taken from the mast here: https://twitter.com/#!/search/?q=%23MSL&src=hash A press briefing on the status of Curiosity is scheduled for 10 a.m. PDT

george.leopold
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re: Updated: NASA releases first color image from Curiosity
george.leopold   8/7/2012 9:38:51 PM
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JPL managers have said they will take it's time bringing up different Curiosity systems, noting that the rover is a "precious national resource." We'll be seeing Gale Crater in high-def soon enough.

ReneCardenas
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re: Updated: NASA releases first color image from Curiosity
ReneCardenas   8/7/2012 8:28:58 PM
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Neat, for a sec I was feeling dissapointed of the quality of the picture, then all makes sense. It is necessary to protect optics until all dust picked up from descent has settled down. Very smart indeed, we are waitting with excitment for the follow up images...



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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