Exploring Mt Sharp - The Dunes - Part 1: Bagnold Dunes, Site 51-53, Sol 1172-1273, November 24, 2015-March 6, 2016 |
Exploring Mt Sharp - The Dunes - Part 1: Bagnold Dunes, Site 51-53, Sol 1172-1273, November 24, 2015-March 6, 2016 |
Nov 23 2015, 12:41 PM
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Senior Member Group: Members Posts: 2429 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
Midnight Planets reporting that Curiosity moved approximately 46.2m SSE (161º) on Sol 1172. LINK Quick and Dirty L-NavCam using the 5 available frames (MS ICE), reduced ~10% to get within the UL limit
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Dec 16 2015, 06:20 PM
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Junior Member Group: Members Posts: 58 Joined: 9-April 15 Member No.: 7433 |
http://mars.jpl.nasa.gov/msl/multimedia/ra...72M_&s=1194
Looks like they are getting some deck images to look at particles trails, plus from looks of other NavCam pics looks like we are skirting edge of dunes...amazing the dark albedo in contrast to the bright veins all over. Its interesting how these dunes are in such close proximity to other dunes with significantly different albedo...where is the source material? Maybe we will find it on the other side? I had imagined these dunes would not be as dark and "colorful" on the ground as the appeared from HiRise and MOC, but they are, maybe even more so :-) - I just hope the wheels stay together for a long time...some of the damaged areas are looking bad :-( |
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Dec 16 2015, 07:10 PM
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Senior Member Group: Members Posts: 4247 Joined: 17-January 05 Member No.: 152 |
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Dec 18 2015, 04:10 PM
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Junior Member Group: Members Posts: 58 Joined: 9-April 15 Member No.: 7433 |
Which other dunes do you mean? Direction of solar illumination and phase angle has a big effect on the brightness of these dunes. Almost all other "dunes" curi has visited to date seemed to have similar albedo and color (based on images released and debayering) as the surrounding outcrops, rocks, and bedrock: One example out of thousands: http://mars.jpl.nasa.gov/msl/multimedia/ra..._DXXX&s=993 this is also apparent from space images...What I am surprised about, is that the current dunes really do appear as or more dark than the images from the oribiters, which sometimes (due to their angle and perspective) give a false impression of color on the ground. Its a pleasant confirmation. Are you suggesting these dunes currently are not darker material, but are just a different angle? |
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