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Beyond Lewis and Clark Gap, Sol 4482- (September 2, 2016-)
jvandriel
post Jan 13 2017, 09:04 PM
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The Navcam L0 view on Sol 4609-4610.

Jan van Driel

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fredk
post Jan 15 2017, 10:27 PM
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We had some images of what is probably Phobos on the evening of sol 4612. Here I've tried to isolate the stars, by registering and averaging the two differences of two similarly exposed frames (with stretches and Gaussian smoothing):
Attached Image

The stars are the short streaks aligned roughly from 2 o'clock to 8 o'clock. (You can see some residual scarring from imperfect subtraction of Phobos.)

Edit: I realized I could get a cleaner subtraction of Phobos by smoothing before subtraction; result replaced.
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Phil Stooke
post Jan 15 2017, 11:17 PM
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It's Deimos (from tweets by Mike Seibert, and the file descriptions on Midnight Planets).

Phil


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... because the Solar System ain't gonna map itself.
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fredk
post Jan 16 2017, 05:37 AM
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Thanks, Phil. I'm out of practice with the moons - it should've been obvious. Phobos has marked "retrograde" motion, while Deimos is nearly synchronous, and this bright object is in nearly the same position in each frame (hence the good subtraction).
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serpens
post Jan 16 2017, 06:08 AM
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Regardless of moon identity, it is an impressive effort Fred.
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jvandriel
post Jan 21 2017, 03:53 PM
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The Navcam L0 view on Sol 4611-4612.

Jan van Driel

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jvandriel
post Jan 21 2017, 04:06 PM
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and the navcam T-shirt view on Sol 4614-4616.

Jan van Driel

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Phil Stooke
post Jan 21 2017, 09:21 PM
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Thanks, Jan. It's not easy to get a good result from reprojecting panoramas taken on a steep slope, at least the way I do it, but this is Jan's panorama from sols 4611-4612 in circular form, so you can see the approximate layout of the terrain here.

Phil

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... because the Solar System ain't gonna map itself.
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jvandriel
post Yesterday, 02:03 PM
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The Navcam L0 Panoramic view on Sol 4618-4619.

Jan van Driel

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Explorer1
post Yesterday, 05:26 PM
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Almost at the peak!
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charborob
post Yesterday, 06:44 PM
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QUOTE (Explorer1 @ Jan 22 2017, 12:26 PM) *
Almost at the peak!

Well, still some 200 m to go, but we're getting there.
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