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Vera Rubin Ridge
neo56
post Jul 16 2017, 08:31 PM
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MC34 panorama taken on sol 1756 at 13h32 local time:



This panorama offers a new perspective on the top right outcrop already imaged on sol 1745 by MC100:



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serpens
post Jul 17 2017, 01:35 AM
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It is worthy of note that during question time following the public talk on Curiosity, James Erickson was extremely upbeat over the future use of the drill and was extremely confident that a fix to the current problem was imminent. This is good news indeed.
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PaulH51
post Jul 18 2017, 01:12 AM
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QUOTE (serpens @ Jul 17 2017, 09:35 AM) *
It is worthy of note that during question time following the public talk on Curiosity, James Erickson was extremely upbeat over the future use of the drill and was extremely confident that a fix to the current problem was imminent. This is good news indeed.

Possible evidence in support of that confidence in this L-MastCam from sol 1757 where we can see they have extended the drill feed mechanism. Emily Lakdawalla referred to "less standard uses of the drill" in her last Curiosity Blog post
Maybe leaving the drill extended to drill a hole without the supports, and then obtaining the powdered rock sample with the scoop... difficult on a windy day, but it could keep SAM working smile.gif
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serpens
post Jul 19 2017, 12:08 AM
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Using the drill even in rotary mode without using the contact sensors and stabilisers would seem to be pretty risky. The percussive action of the drill was designed to pulverise the rock to powder and the vibration, combined with the auguring action of the drill raised the powder to the collection chamber without clogging. I wonder whether rotary action alone would grind rock finely enough to transfer it up the drill shaft to the collection chamber? Given the small size of a drill hole and spoil it is hard to see how the scoop could secure a sample and even then there would be a high probability of cross contamination from surface dust. Still, the work arounds that have been achieved on MER and MSL have been impressive to say the least and it will be fascinating to see what magic they use with the drill.
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djellison
post Jul 19 2017, 01:31 AM
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Percussive drilling was pretty much off the table before the current drill issues arose - so that's not really a consideration. Rotary only drilling was planned when the problem with the feed first arose (and that was my 7th training shift on ECam - Sol 1536

I've not seen specifics of the drill testing they've been doing with the test-bed - but I've heard good things about their results. The fact that we're now 7.5 months after the drill anomaly occurred and only just beginning to see work arounds being discussed for use on Mars should give you some idea of how much care, diligence and attention is being paid to this. Depending on your value of 'risky' - I wouldn't say they were planning anything that puts the vehicle or other functional instruments at 'risk'.

(see this old press release - https://mars.jpl.nasa.gov/news/curiosity-ro...-hiatus&s=2 )
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fredk
post Jul 21 2017, 03:33 PM
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Clouds drifting by on 1758, unstretched:
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fredk
post Jul 21 2017, 03:36 PM
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Another navcam sequence on the same sol which needed some stretching (after subtraction of the mean):
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