My Assistant
| Posted on: Sep 23 2012, 09:08 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
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| Forum: MSL · Post Preview: #191986 · Replies: 529 · Views: 461044 |
| Posted on: Sep 18 2012, 07:31 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
but for me, it's a total mistake to stretch picture like this. And come one, the previous ones were no so dark… Given that the primary purpose of these images is for people to look at them as they are, without photoshop to stretch them - they have done the right thing. Many of the previous images were too dark. http://mars.jpl.nasa.gov/msl/multimedia/ra...0424M_&s=40 http://mars.jpl.nasa.gov/msl-raw-images/pr...NCAM00418M_.JPG http://mars.jpl.nasa.gov/msl-raw-images/pr...NCAM00302M_.JPG http://mars.jpl.nasa.gov/msl-raw-images/pr...NCAM00417M_.JPG These images would be 'better' for people to look at with the newer stretch. Yes - we get clipping at each end as a result, but the image occupies a larger part of the histogram and, combined with lower compression, is far better for people to actually look at. |
| Forum: MSL · Post Preview: #191686 · Replies: 529 · Views: 461044 |
| Posted on: Sep 17 2012, 06:41 AM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
Every MARDI frame of landing IS down. How do you think he made that video, or indeed the versions that JPL have released? |
| Forum: MSL · Post Preview: #191598 · Replies: 370 · Views: 290187 |
| Posted on: Sep 17 2012, 04:58 AM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
Wow - a load of fuss over a bit of photoshop in half a second of video. |
| Forum: MSL · Post Preview: #191595 · Replies: 370 · Views: 290187 |
| Posted on: Sep 16 2012, 03:12 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
Is anybody attempting to map Curie's positions on sol 39&40? Obviously the team at JPL are doing just that, and the amateur efforts will appear here when people have had the time to figure it out http://www.unmannedspaceflight.com/index.p...20&start=20 |
| Forum: MSL · Post Preview: #191557 · Replies: 587 · Views: 801618 |
| Posted on: Sep 16 2012, 03:11 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
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| Forum: MSL · Post Preview: #191556 · Replies: 370 · Views: 290187 |
| Posted on: Sep 16 2012, 07:04 AM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
Blue filters on a bayer filter can often be nIR transparent. |
| Forum: MSL · Post Preview: #191544 · Replies: 529 · Views: 461044 |
| Posted on: Sep 14 2012, 09:35 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
It's a mistake to think of MSL as RTG powered. Like MER it is really battery powered. The RTG just trickles power into the batteries. (as I understand it, and really I'm just repeating others here - I think Doug said pretty much exactly this). Exactly that. It consumes more than 110Watts to 'run' the rover - and some activities use much much more than that. You use up battery power during the day, and then recharge with the RTG over night. QUOTE (MahFL) What happened to Pete ?, as I see on the MSL website Cook is now the MSL Project Manager. That information is probably out of date. Richard was MSL ProjMang for a while a few years back as Pete had some medical issues to deal with. Then Pete took the position again. At the moment, it's still Pete at the top and Richard as his deputy. |
| Forum: MSL · Post Preview: #191434 · Replies: 587 · Views: 801618 |
| Posted on: Sep 14 2012, 06:03 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
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| Forum: MSL · Post Preview: #191405 · Replies: 587 · Views: 801618 |
| Posted on: Sep 9 2012, 03:19 AM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
'Eyes...' has nothing for surface operations. We intend to replace the EDL trajectory with a reconstructed trajectory of actual events in a few weeks time when the team's had a chance to process all that data. |
| Forum: MSL · Post Preview: #190960 · Replies: 370 · Views: 290187 |
| Posted on: Sep 8 2012, 09:41 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
As i understand correct, during live stream, Eyes used real telemetry data from vehicle for the graphic presentation of whole EDL sequence. No, it didn't. It was a predict from 3 weeks before landing. There was a realtime visualization via Mars Odyssey telemetry - but it wasn't Eyes on the Solar System and it updated at something under 1hz. D |
| Forum: MSL · Post Preview: #190948 · Replies: 370 · Views: 290187 |
| Posted on: Sep 7 2012, 09:59 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
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| Forum: MSL · Post Preview: #190879 · Replies: 199 · Views: 178815 |
| Posted on: Sep 7 2012, 04:21 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
The problem with the thrust/acceleration problem is that you're not exactly sure what the performance of the thrusters is any more. It's uncertainty is probably more than our fuel uncertainty. F=MA and all that...but while IMU's will give you A, F has error bars that then induce errors in M. The thermal inertia idea is one that's been put out there as an option for Cassini as well. |
| Forum: Exploration Strategy · Post Preview: #190835 · Replies: 19 · Views: 35631 |
| Posted on: Sep 7 2012, 02:23 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
Oh - glad something got published on that - thanks for the ref Mike. |
| Forum: Exploration Strategy · Post Preview: #190822 · Replies: 19 · Views: 35631 |
| Posted on: Sep 7 2012, 01:53 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
The challenges on keeping track on the exact amount of fuel remaining was one of the reasons why the burned Stardust to depletion when they switched it off...to find out exactly how much was left compared to their various means of measuring it. It's not easy. |
| Forum: Exploration Strategy · Post Preview: #190817 · Replies: 19 · Views: 35631 |
| Posted on: Sep 6 2012, 10:41 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
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| Forum: MSL · Post Preview: #190784 · Replies: 252 · Views: 429901 |
| Posted on: Sep 6 2012, 09:55 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
In a talk by Marc last week for the EPO folk on lab - he echoed what you describe Floyd. Marz - I think you have things wrong. |
| Forum: Dawn · Post Preview: #190776 · Replies: 68 · Views: 177158 |
| Posted on: Sep 6 2012, 08:22 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
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| Forum: Dawn · Post Preview: #190769 · Replies: 68 · Views: 177158 |
| Posted on: Sep 6 2012, 08:21 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
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| Forum: MSL · Post Preview: #190768 · Replies: 199 · Views: 178815 |
| Posted on: Sep 6 2012, 05:06 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
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| Forum: MSL · Post Preview: #190731 · Replies: 252 · Views: 429901 |
| Posted on: Sep 6 2012, 01:14 AM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
That paper is slightly outdated. I believe the throttle level ended up being 60% ( about twice what it was during the hover phase...which is actually a continual .75m/sec downward motion of the descent stage toward the ground ) And it ran for approx 6 seconds. D |
| Forum: MSL · Post Preview: #190689 · Replies: 199 · Views: 178815 |
| Posted on: Sep 6 2012, 01:11 AM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
No motion between +6 and +12 sols. |
| Forum: MSL · Post Preview: #190688 · Replies: 199 · Views: 178815 |
| Posted on: Sep 5 2012, 09:44 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
So - time warp for a thread time but... http://www.planetary.org/blogs/emily-lakda.../2008/1673.html In that awesome article, Emily mentioned that it would need to be reactivated in 2012 for a 2014 recapture. Any news on that? I've heard nothing. |
| Forum: Cometary and Asteroid Missions · Post Preview: #190670 · Replies: 91 · Views: 140049 |
| Posted on: Sep 5 2012, 09:35 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
but isn't the test (driving) rover specially lightened to compensate for that? The Scarecrow rover yes. http://www.flickr.com/photos/planetaryblog/7197573662/ VSTB, no. http://photojournal.jpl.nasa.gov/catalog/PIA15876 (Some of my own photos of the VSTB are here : http://dougellison.smugmug.com/Machines/Ma...9&k=ZnpCztC ) |
| Forum: MSL · Post Preview: #190669 · Replies: 313 · Views: 278336 |
| Posted on: Sep 5 2012, 07:55 PM | |
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
Regarding wheel damage....the VSTB (test rover) is effectively 3x too heavy for its wheels....it's eaten its way thru a set already and they've been replaced with an extra beefy set. There will be dings and dents on the wheels on Mars, but I wouldn't expect anything as bad as is in that video. |
| Forum: MSL · Post Preview: #190658 · Replies: 313 · Views: 278336 |
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