Crossing the Dunes at Murray Buttes, Sites 54-62, Sols 1353-1659, May 28 2016-Apr 6 2017 |
Crossing the Dunes at Murray Buttes, Sites 54-62, Sols 1353-1659, May 28 2016-Apr 6 2017 |
May 27 2016, 11:01 AM
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Senior Member Group: Members Posts: 2430 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
Midnight Planets has reported Curiosity's movement of ~46.3m WSW (-116º) on Sol 1353.
Only 7 L-NavCams were available for this rough & ready stitch in MS ICE, the raws are a little overexposed, but they may assist in pinpointing the location. I cropped the stitch a little to get it under the upload limit. I'll post the full resolution 360 on an image host as the images become available, unless someone beats me to it |
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Jun 8 2016, 05:31 AM
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Member Group: Members Posts: 691 Joined: 21-December 07 From: Clatskanie, Oregon Member No.: 3988 |
I like the "UV darkening of the adhesive" theory. The trouble that I'm having though with it possibly being adhesive is it appears to take an exact imprint of the pattern like the pattern was intricately cutout then bonded which would support what we are seeing but that seems a little unlikely. I would have thought the pattern would be printed on some sort of backing surface with then a uniform adhesive on the back, which is not what we are seeing if that was the case. Need more information on these particular fidicual targets, how they were made and applied, and why they were removed. Though the latter isn't as important to know.
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Jun 8 2016, 11:31 AM
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Senior Member Group: Members Posts: 2430 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
I would have thought the pattern would be printed on some sort of backing surface with then a uniform adhesive on the back, which is not what we are seeing if that was the case. I really enjoy a good detective story So I throw a possible clue onto the table (just for fun)... I looked at the Photo-Journal page for PIA14131 which make reference to a 'space simulation chamber at JPL' Google pointed me to the actual chamber used LINK which even has a photo of Curi in the chamber before the doors were closed. The chamber contains a large 'collimating mirror' on the seiling that collects light from 37 xenon arc lamps installed in a 'solar basement,' and focuses the light onto a test subject. Each of the lamps are 20 to 25-kilowatts depending on which reference I found... the other link to the test chamber (Chamber 25 Space Simulator, Building 150) LINK So, returning to Jame's comment about one piece labels with a uniform adhesive / UV darkening etc. Xenon arc lamps produce a lot of light and a lot of UV, maybe enough to alter the backing adhesive of the temporary fiducial targets on the port covers. But why the different effects leaving our matching pattern behind? Possibly the intense UV from the xenon lamps passed through the black and white fiducial marks differently, one section being masked? Maybe this resulted in some change in sections of the uniform adhesive where some was altered or baked onto the surface? Just another 2 cents towards this discussion |
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