ESA released new set of HRSC images from orbits 1225 and 1863, which are map projected and radiometrically calibrated. At this moment you have to get them through the PSA interface

A color composite of a stripe of Meridiani Planum (includes Victoria) can be found here (2MB)

In fact, this is a 90deg rotated analglyph ( )... I'm not able to identify Victoria, even though there are many simil-Victoria crates... could you kindly show me where should be?

Actually, it's just simple color composite - exactly same as in Oppy subforum. I know the color doesn't feel right somehow but it's not rotated. Look for the 3 big lined craters on the right about 3/4 down the image. Then in the lighter "rectangle" left of the topmost crater, is Victoria. Pixelwise it's [1180;15588] Or look at the Victoria crop for context

Perhaps not intentional, but channel shift around this crater (located at 1/5th of image height) is really 3D if rotated 90deg clockwise and seen through 3D glasses

...and this crater is even more intriguing:
Click to view attachment
(3D too)

As with the calibrated MER images, there are radiance offsets and factors that need to be applied to get each image into absolute units. They are in the PDS tags. Hilariously, in the map projected images, there are two tags for offset and two tags for scaling, labeled identically. They are significantly different in value, and there's no mention of which is actually supposed to be used...but by trial and error, I think it's the second of each that is appropriate to the map projected images (could be COMPLETELY wrong about this.)

Here's a couple simple image->RGB channel color versions, but with the scaling factors applied (not even close to true color, but a step in the right direction)

The Meridiani image, thumbnail is rotated (left is south), full size has an arrow pointing at Victoria:


And a crop of the full swath containing the water-ice crater on Vastitas Borealis


I'm surprised they didn't mention the larger ice sheet north of the crater in their original releases. It is quite a sight.

Great work -as always, Daniel

The larger ice sheet is indeed very impressive.

Nico

BJORN - img2png has another 'requriement'

Dan - did you get those via the map interface or elsewhere? The bottom image is superb.

Doug

Thanks Nix, Doug!

Doug: classical interface, searching by orbit number, which works like a charm.
Having just discovered these radiometric map projected images (thank you jaywee!!!), well, I'm in 'little kid meets candy store' land to say the least

Here's another from much earlier in the mission.

In the Water at Martian South Pole image release, we saw an OMEGA false color image, and a b/w closeup of the South polar cap.

Here's that same area, in color (cropped, and at half res):

Man I'm enjoying these.. Keep the candy coming

Nico

Just getting stuff via the RSSD and I can see your folders on the server Dan

You know how some MER mosaics are large....

The Gusev obs from Jan 16th '04....oh my...

4295 x 75,543 - call it 325 Megapixels.

Doug

I'm getting that interface too now, yet where do you get info on orbit numbers and such?

Nico

I was playing with these a few months back and they made (what I thought was) a tidy computer setup slow to a crawl. I got bogged down in, what slinted calls "hilarious", tag hell and eventually gave up.

oooo- pretty

Orbit 648, nIR, G and B, not calibrated, but just adjust to look 'nice'

Doug

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

Doug:

About time, too! Happy mining!

Bob Shaw

I'm struggling to find meridiani obs using lat long search - what parameters are you using?

Doug

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.


I used the coords from Google Mars: -1.95 354.47

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.

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.

"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

There is a graph somewhere that plots 'Doug Productivity' vs ' Interesting Data Releases' - it's going to be pretty damning...

anyway - more fun...

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 )

Doug, great image of Pavonis Mons. Too easy.

Yummy ...

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

Thank you sooo much.

My favorite is Pollack with White Rock. Nice contex image.

You noticed that one has SIX DD's on it...SIX - and all fairly large to be detected at that res.

Doug

No. Six?? Where?

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

Anyone noticed the utterly CRAP flatfielding of the SRC images?

Doug

Don't hold back Doug, tell us what you really think!

Great work mind you, it's nice to see some images from MEX. Keep 'em coming.


i think i see at least another 7

If I said what I really though, I'd end up banning myself from the forum, which would result in a quantum administrative black hole and the forum would vanish in a cloud of irony.



As a heads up - the ND3 filter is much much higher resolution than the colour filters - me thinks colour overlay on greyscale is in order.

Doug

Thanks for pointing out the dusty whirlwinds.

Ooops - thought I'd get the ND3 of the early Gusev observation....and it's large..and you can't resume downloads ( very bad ).....eek....a single image product, 200 meg and still going.

After few weeks the entire dataset should be (I hope) also available at http://pds-geosciences.wustl.edu/geodata/

Just have to say - the polar images you made are simply stunning.

Just have to toss in a "wow" here -- these images are tremendous! I agree with jaywee -- and those dust devil images are tremendous too! Wish I had time to play, but I'm perfectly happy to be a spectator to your fun -- just keep the images coming!

--Emily

Wow...this is incredible!

Really nice stuff. Well done everybody.

Phil

A bit of Val.Mar joy before bed

Doug

The map interface for the PSA is crappy, and the classical PSA is as bug ridden as hell - null this, 1>=0 that, blah blah.....

Yuck

Doug

Emily will have some goodies to show you in the not too distant future re: the Dust Devils in the White-Rocks image...but meanwhile - another Gusev observation, this time Orbit 637, and I've changed my channel-mixing technique. I find using Colour Balance just on mid-tones is very effective ( +53, -10, -15 for those interested )

Doug

Duly blogged; these images are fabulous! Thanks Doug!

http://www.planetary.org/blog/article/00000561/
http://www.planetary.org/blog/article/00000562/

--Emily

The images are top notch, but the dust devil movies are *incredible*. Excellent catch, and great presentation!

Wonder if I squeeze a paper out of it?

ANyway - meanwhile, after noting that my martian geography is so bad I couldnt tell the difference between the north and south pole, I thought I'd play with something a little less...'dynamic'...

Thats just about every Val Mar image I can find from the first 1250 orbits, I may have missed a few - but as you can see then tend to drop into 'batches' of similar observations from which I could probably generate some nice regional mosaics.

Doug

great job! this is so cool

yay to more public releases

Where can I find NASAVIEW for Mac OSX? it's not in the usual JPL location.

Don

Here - http://pds.jpl.nasa.gov/tools/software_download.cfm - I think.

Doug

Doug,
I just can't stress enough how magnificent the DD animations you made are. I wonder if ESA knows what they have (Have you shown them to Jim Bell?)

Anyway, as I said before - the archive is now available at http://pds-geosciences.wustl.edu/geodata/m...approjected-v1/ it's biggest advantage is easy accessibility of the thumbnail jpg images.

Oddly, eventhough the ESA page says it covers 1-1863, it ends at 1295. Have you found data from newer orbits in the PSA interface?

Yup - via the psa you can get to 1800andsomething

The browse JPG's are utterly perfect - they're exactly what was needed, and being able to just grab an orbits data instead of using the lengthy convoluted pain-in-the-backside PSA system is a big big BIG bonus - if you can catch up to 1863, it would be great.

Doug