Third HSRC Release!, Includes map-projected calibrated images |
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Third HSRC Release!, Includes map-projected calibrated images |
 Apr 27 2006, 08:15 PM
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#16
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Founder  Group: Chairman Posts: 14431 Joined: 8-February 04 Member No.: 1  |
The middle part of that huge 70k tall Gusev observation
Looking around, it seems that a lot more nIR,G,B obs have been done than RGB. Doug
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Apr 27 2006, 08:29 PM
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#17
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 Senior Member Group: Members Posts: 2488 Joined: 17-April 05 From: Glasgow, Scotland, UK Member No.: 239 |
Doug:
About time, too! Happy mining! Bob Shaw -------------------- Remember: Time Flies like the wind - but Fruit Flies like bananas!
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Apr 27 2006, 08:32 PM
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#18
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Founder Group: Chairman Posts: 14431 Joined: 8-February 04 Member No.: 1 |
I'm struggling to find meridiani obs using lat long search - what parameters are you using?
Doug |
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Apr 27 2006, 10:43 PM
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#19
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Newbie Group: Members Posts: 17 Joined: 25-April 05 From: Pilsen, CZ, EU Member No.: 363 |
QUOTE (djellison @ Apr 27 2006, 10:15 PM)  The middle part of that huge 70k tall Gusev observation Looking around, it seems that a lot more nIR,G,B obs have been done than RGB. The HSRC doc says it has following filters: nadir, outer stereo (2), photometric (2) 675±90 nm; blue 440±45 nm; green 530±45 nm; red 750±20 nm; near-IR 970±45 nm. QUOTE (djellison @ Apr 27 2006, 10:32 PM) I'm struggling to find meridiani obs using lat long search - what parameters are you using? I used the coords from Google Mars: -1.95 354.47 |
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Apr 28 2006, 07:55 AM
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#20
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Founder Group: Chairman Posts: 14431 Joined: 8-February 04 Member No.: 1 |
1087, 1154, 1096 - all polar obs with nIR, G, B - perhaps the ice acts as an 'auto-level' thus making these look reasonable sans-radiometric-calibration
 1201 just doesnt quite work out right - it needs that offset and scale processing I would imagine - and just for the sake of looking, I did the 1201 Super-Res channel mosaic as well.
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Apr 28 2006, 08:54 AM
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#21
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Member Group: Admin Posts: 468 Joined: 11-February 04 From: USA Member No.: 21 |
Nix: those first couple were just me looking up the orbit number mentioned in the press releases, I'm just getting a feel for the interface now as well...
babakm: that wasn't the most appropriate word choice on my part, but if we aren't laughing then we're probably crying. I see this glass as being half-full of data (which, for the ESA, is pretty good!) Doug: 1201, with the scaling factors applied, looks...cartoonishly orange. I'm seeing a lot of individual images that are coming out that color, with almost no chromatic range at all. I'm not sure if a: I'm misapplying these factors, b: the factors are wrong c: it really did look this red from a high phase or illumination angle, both of which would exacerbate the atmospheric filtering or d: the red filter (which is realistically a Near-IR filter itself, with its center outside of human vision) is a bad indication of visible red. |
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Apr 28 2006, 09:33 AM
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#22
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Founder Group: Chairman Posts: 14431 Joined: 8-February 04 Member No.: 1 |
"Kid in Candy Store" T-Shirts now available...we're nearly there
There seems to have been a systematic survey of the south pole during the 1000-1200 orbit numbers. And similarly, a LOT of images of Val-Mar. Mosaic-o-rama-a-go-go at some point Doug |
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Apr 28 2006, 10:05 AM
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#23
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Founder Group: Chairman Posts: 14431 Joined: 8-February 04 Member No.: 1 |
There is a graph somewhere that plots 'Doug Productivity' vs ' Interesting Data Releases' - it's going to be pretty damning...
anyway - more fun...
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Apr 28 2006, 11:59 AM
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#24
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Founder Group: Chairman Posts: 14431 Joined: 8-February 04 Member No.: 1 |
Here's some interesting stuff....
A volcano ( I thought Ol.Mons but I have no idea to be honest - it isnt Ol Mons, a metaphorical cookie for whoever identifies it first ) from the HRSC, showing the coverage of the SRC - and then the SRC mosaic to match. Because this is a stereo camera, and because there are some serious elevation changes in this lot, you get slight channel miss-match in places - especially with high altitude clouds ( as with some of the polar images ) The HRSC colour image is at a best res of 102 m/pixel - the SRC 3.5m/pixel ( but I've downscaled, so 7m/pixel )
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Apr 28 2006, 01:02 PM
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#25
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 Member Group: Members Posts: 531 Joined: 24-August 05 Member No.: 471 |
Doug, great image of Pavonis Mons.
 Too easy.Yummy ... -------------------- - blue_scape / Nico -
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Apr 28 2006, 01:03 PM
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#26
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Founder Group: Chairman Posts: 14431 Joined: 8-February 04 Member No.: 1 |
You win....a metaphorical cookie
Do you realise than in the space of 36 hrs we've output more HRSC images than ESA would do in about 6 months Doug |
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Apr 28 2006, 01:10 PM
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#27
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Member Group: Members Posts: 531 Joined: 24-August 05 Member No.: 471 |
Thank you sooo much.
My favorite is Pollack with White Rock. Nice contex image. -------------------- - blue_scape / Nico -
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Apr 28 2006, 01:23 PM
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#28
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Founder Group: Chairman Posts: 14431 Joined: 8-February 04 Member No.: 1 |
You noticed that one has SIX DD's on it...SIX - and all fairly large to be detected at that res.
Doug |
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Apr 28 2006, 02:15 PM
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#29
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Member Group: Members Posts: 531 Joined: 24-August 05 Member No.: 471 |
QUOTE You noticed that one has SIX DD's on it No. Six?? Where?
-------------------- - blue_scape / Nico -
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Apr 28 2006, 02:28 PM
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#30
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Founder Group: Chairman Posts: 14431 Joined: 8-February 04 Member No.: 1 |
Actually - I'm going to pitch for more like 12...and I've not highlighted them but there's potentially another 2 in there as well, possibly more. I used Blue, Green and nIR for these...
Blue START_TIME = 2004-12-25T00:55:56.360Z Green START_TIME = 2004-12-25T00:55:37.866Z nIR START_TIME = 2004-12-25T00:55:04.547Z So - given that the red image is 'leading' the blue by 52 seconds, the full res is 89.5 m/pixel, and I'm getting between 6 and 9 pixels of motion between thsoe two frames...I'd estimate a speed of between 10 and 15 m/sec in a SE direction - one problem would be figuring out how much of that apparant motion is because of the slightly different p.o.v. between filters - but I think 10m/sec is a fair estimation. Look at me, getting all scientific Sadly - they didn't do all the filtes for this obs, but there's a normal red, and an ND filter obs that I've not looked at, so I'll try and do the maths with those later - see how well it ties in with 10-15m/sec Doug
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