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Moon Images By SMART-1
Phil Stooke
post Mar 4 2008, 04:49 PM
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Here's a map of SMART-1 coverage by resolution. Yellow is coverage better than 250 m/pixel, essentialy global. Red is better than 100 m/pixel, most of the southern hemisphere. Black is better than 50 m/pixel. The central longitude of the map is zero degrees, the ends are 180 degrees, north at top.

And goodish news - the images themselves are still being worked on for ingestion into the PSA, ESA's version of PDS. So we will get them eventually. I understand that calibration has been difficult because camera properties changed during the mission.

Phil

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Phil Stooke
post Mar 4 2008, 04:56 PM
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And here it is with a Clementine mosaic overlay.

Phil

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Anders
post Sep 27 2010, 09:49 AM
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Emily noted that the SMART-1 data has been released:

http://sci.esa.int/science-e/www/object/in...fobjectid=47714
QUOTE
The complete archive of data sets from ESA's 3-year SMART-1 mission to the Moon has been released to the scientific community.


I have just started to look around in the archive, but it looks like a huge FTP archve

with files like:

File:AMI_EE7_031003_00004_01000.IMG 292 KB 07/08/2010 12:37:00 PM
File:AMI_EE5_031003_00002_00010.IMG 164 KB 07/08/2010 12:42:00 PM
File:AMI_EE3_031003_00005_10000.IMG 548 KB 07/08/2010 12:51:00 PM
File:AMI_EE7_031003_00001_00010.IMG 292 KB 07/08/2010 12:53:00 PM

I do not yet have any personal experience with processing raw data, but it would be fun to be able to browse these images.

CODE
PDS_VERSION_ID                 = PDS3                                        
                                                                              
/***      FILE CHARACTERISTICS                                            ***/
FILE_NAME                      = "AMI_EE1_031003_00001_00010.IMG"            
RECORD_TYPE                    = FIXED_LENGTH                                
RECORD_BYTES                   = 1024                                        
FILE_RECORDS                   = 292                                          
LABEL_RECORDS                  = 20                                          
INTERCHANGE_FORMAT             = BINARY


So I guess that it's just a matter of dig into the documentation or wait for someone here to point
out what tools are available.
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ugordan
post Sep 27 2010, 10:25 AM
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There are both raw and calibrated products available. However, the way the metadata is organized makes it a pain to see which image was taken when and of what target. The browse thumbnails seem to be actually imbedded inside the IMGs so that's not really helpful. Also, the calibrated products seem to be missing all the lunar phase images that also show Earth in the FOV, in fact entire such orbits of interest are missing from the calibrated products.


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Phil Stooke
post Sep 27 2010, 03:20 PM
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Yes, I don't get that browse image thing at all. Let's have a folder of browse images, and a clickable map interface!

Phil


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ugordan
post Sep 27 2010, 05:09 PM
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Here's a Moon approach sequence of 13 images. Supposedly shows the north pole.
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Phil Stooke
post Sep 28 2010, 02:54 AM
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I managed to pull this one out, just to prove I could.

Phil

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elakdawalla
post Sep 28 2010, 04:38 AM
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To be honest, that image doesn't look so great. Does it even improve on Clementine? Do these images have any use beyond their novelty value ("hey, Europe had a lunar orbiter once too")?

Here's one of those North Pole images from when it was released back in 2004. Neat to see it's part of an longer sequence, and definitely an unusual viewpoint on the Moon.


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ugordan
post Sep 28 2010, 09:04 AM
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AMIE is not exactly the best imager in the world. It appears to be affected by scattered light, is fairly low resolution and uses lossy wavelet compression with varying degrees of compression. Though in all honesty, that image of Phil's looks like it's taken in high sun so only albedo variations are seen (contrast-enhanced?).


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Phil Stooke
post Sep 28 2010, 11:20 AM
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See my map, higher up the page - the black areas, including the south pole itself, are 50 m/pixel, better than Clementine's UV-VIS images. So some small areas are better. Plus, the polar coverage was much better in time sampling - all seasons at both poles (Clementine operated for only about 3 months).

One unfortunate thing is that there was only a short period during which the SMART-1 images were the best. Now we have them, but most people are more likely to want to use LROC WAC images, or others (Kaguya, and ISRO is said to be releasing its Chandrayaan images by the end of this year) if they can get them.

I just chose my image at random, not even noting where it was from.

Phil


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Phil Stooke
post Sep 29 2010, 01:48 PM
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Here's another random image:

Attached Image


A near-terminator shot. Again I didn't check its location. These are 32-bit images, but all the action is in the lower 16 bits, so as a tip for people who want a quick way to browse them: import as a Photoshop raw, using 16 bit IBM format and either 1024 by 548 or 512 by 548 as the size (depending on the file size). That splits each 32 bit pixel into two, making vertical lines down the image, alternating between image and blank. Now use 'image size' and nearest neighbor sampling (will not work otherwise!) to reduce to 512 by 548 or 256 by 548 (depending on file size). Now you have just the image lines left, and a contrast stretch will optimize it for viewing. After a good stretch it can be saved in 8 bit if you prefer, as this has been.

Phil


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ugordan
post Sep 29 2010, 02:33 PM
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Phil, that sounds like a rather un-quick way to browse images! Wouldn't a faster method be to just dump an image properly into a PNG?


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Phil Stooke
post Sep 29 2010, 05:20 PM
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True! Obviously IMG2PNG would be better than the approach I described. I just wanted to offer a method to people who don't have, or don't want to get into, that software.

I doubt if I will ever do very much with these images. Sadly, their time may have passed already.

Phil


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Anders
post Sep 30 2010, 09:03 PM
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Now I've got a hang on the data set and I manage do create my first cross eye 3d image from the data set.
Attached Image

Dated or not, SMART-1 was built in Sweden and assembled in my home town, Linköping, that's why I'm interested. =)
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