LOLA PDS release #5 |
LOLA PDS release #5 |
Feb 25 2011, 06:50 PM
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#1
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Junior Member Group: Members Posts: 22 Joined: 20-June 09 Member No.: 4830 |
Hi All,
Some LOLA products for the PDS release (#5), which will be officially out on March 15, 2011, are now available on the LOLA PDS node ! Label files and documentation are still being worked out, but I thought it'd be good to post (and some of you know we usually put those products online a bit early) The data released are from July 13, 2009 to January 31, 2011. There are EDRs/RDRs (individual profiles) for the courageous ones. But most of you will prefer the map products ( http://imbrium.mit.edu/DATA/LOLA_GDR/ ). In addition to IMG products (int16), there are JP2 files (GeoJPEG2000) which are compressed (lossless) and contain projection information. If you use a GIS programs, that should be helpful. The attached XML files contain the statistics already, which could save you 10+ minutes for the bigger grids upon loading. (Due to PDS filenaming conventions, you need to rename them to file.JP2.aux.xml for that to work properly; tested on ArcGIS). And keep in mind that in both those formats, the data were digitized at a 0.5m granularity, so you will need to divide the values by 2 to get the actual heights (in meters). Also of interest for visualization are the updated LOLA texture packages for Celestia. ZIP files here: http://imbrium.mit.edu/EXTRAS/CELESTIA/ and a few screenshots: It'd be great also to know how this community is using the LOLA data, so please reply if you do: 1- Experimental Data Records (EDR) [raw telemetry] 2 - Reduced Data Records (RDR) [altimetric profiles] 3 - IMG Gridded Data Records (GDR) [maps] 4 - JP2 Gridded Data Records (GDR) [maps] 5 - Celestia Virtual Textures Enjoy !! Erwan EDIT 2011.02.25 08:30pm EST I realized there was a mistake in the level 0 normal map. (The files were the same as the topography texture...) The ZIP files have been updated. In case you downloaded the "old" version, you can download the two level 0 files here instead of re-downloading the ZIP. |
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Mar 11 2011, 10:09 PM
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#2
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Member Group: Members Posts: 890 Joined: 18-November 08 Member No.: 4489 |
joertexas
seeing as these IMG files ( the lola img)are RAW images with NO image information in them The information is in the lbl ( label) file you open them with the appropriate PDS software or as a RAW image and you get the image size from the lbl label and img2png will do this Photoshop will even open the raw image ( though the singed format might be an issue ) |
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Mar 11 2011, 11:05 PM
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#3
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Newbie Group: Members Posts: 17 Joined: 30-January 11 Member No.: 5787 |
UNNECESSARY QUOTING DELETED
I can't get img2png to start, but I was able to create a png file with Irfan. Is this what I need to do? My computer doesn't have the memory to open the resulting file in Integrated Data Viewer, so I'm not able to check if it worked. JR |
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