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More Data From Mars Rover Spirit's First Month Now Online

Millions of people have viewed pictures from NASA's Spirit on the Mars rovers home page and other Internet sites. Beginning today, a more complete set of science data from Spirit's first 30 martian days is posted on a site primarily for scientists and technical researchers, but also available to anyone who's interested.

The first installment of images, spectroscopic measurements, daily reports, and other information from NASA's Mars Exploration Rover project has been posted on NASA's Planetary Data System. It is available with a new "Analyst's Notebook" user interface at: http://pds-geosciences.wustl.edu/meran . Home page for the Planetary Data System is http://pds.jpl.nasa.gov . Images are also available from the system's Planetary Image Atlas, at http://pdsimg.jpl.nasa.gov/cgi-bin/MER/sea...PLORATION_ROVER . Data from Opportunity's first 30 martian days, or "sols," will be added Aug. 24, and data from later portions of both rovers' missions will be added in October.

"All the raw images and selected processed images and other information have been shared with the public since the rovers first reached Mars in January. This release adds other derived images and maps used for planning, all the non-image data from the spectrometers, daily operational reports and activity plans," said Dr. Ray Arvidson of Washington University, St. Louis, deputy principal investigator for the twin rovers' science payload.

"The 'Analyst's Notebook' is designed to help you navigate through the data and understand the synergies," he said. "You can't deal with the Moessbauer spectrometer readings from a given sol without information about other observations that go with it."

"We are proud to be releasing such a comprehensive set of data from the surface science mission of the twin rovers so quickly," said Dr. Jim Garvin, NASA's chief scientist for Mars. "It's a testament to the dedication and commitment of the science and engineering teams that this remarkable collection of information is now available to the entire world for interpretation, education, and to help guide NASA's new exploration focus," added Garvin.

JPL, a division of the California Institute of Technology in Pasadena, manages the Mars Exploration Rover project for NASA. Images and additional information about the project are available from JPL at http://marsrovers.jpl.nasa.gov and from Cornell University, at http://athena.cornell.edu . The Planetary Photojournal, at http://photojournal.jpl.nasa.gov , is another resource for easy public access to images of Mars and other worlds.

[djellison]

Alrighty then - got me some Rad files

BUT

Still the same issue. I'm converting to tif, tga, gif, or even raw using Thumbs Plus 4 - and the three image-sets that make a slice from horizon to midground to right infront of you change in colour

I'm going to try agian using img2png with 16 bit pleasure before REALLY going bonkers

Doug

[djellison]

RIGHT - think I've found it

http://anserver1.eprsl.wustl.edu/mera/mera_search.htm

When using that ( probably the best search tool - and using I.E. , one can get netnats to download the complete list on the left ) I search for MPL file types - Results to be posted shortly

Doug

[djellison]

Bingo.

Doug

[Baltic]

Bingo.

Wow, great news! And the colors are so much more mars!

I hope you have a lot of free time ahead.

Tom

[slinted]

Alrighty then - got me some Rad files

BUT

Still the same issue. I'm converting to tif, tga, gif, or even raw using Thumbs Plus 4 - and the three image-sets that make a slice from horizon to midground to right infront of you change in colour

I'm going to try agian using img2png with 16 bit pleasure before REALLY going bonkers

Doug

Yeah, Thumbs Plus 4 wouldn't know that it needs to scale the files according to the values "RADIANCE_SCALING_FACTOR" and "RADIANCE_OFFSET_FACTOR", so you're not getting the data out of them in an absolute scale. (as far as i can tell from reading, no PDS files have used this in the past, so its doubtful that any PDS reading software that hasn't been updated recently would be able to handle this)

The reason why that doesn't matter for the MIPLRAD files, even though they have a radiance_scaling_factor and radiance_offset_factor is that they're all the same. Every one is scaled by 1x10^-5, and offset by 0.

I'm sure you would see very similar results working from the cornell RAD files if you scaled them by ( (pixel * scaling) + offset ). There is still variation, but its very minimal (similar to the variation seen in the MIPLRAD files you posted.

[djellison]

I'm not quite that technical

I just go

"Wrong

Wrong

Wrong

Wrong

Nearly there

OOO - OOO - Look - PRETY COLOURS "

Thing with these is that that are radiance calibrated - but also - geometrically adjust so they simply stitch one to the other all on their own. No PTGUI -just stitch-and-save

Pity that of the first 30 sols, Spirit lost about 10 to the flash crash. Opportunity will have a much better first 30 sols- but also - the 30-90 sol section for Spirit will be fab. The images from sols 38 - 42 are excellent, with nice look-backs to the lander which have been adjusted very badly for brightness on the JPL Raw pages.

What is the Navcam equiv of these pancam adjusted file (the MRL's )- with radiometric and geometric ajustments all taken out?

Doug

Doug

[djellison]

Slowing working out the acronyms.

MRL is Pancam images that are Radiometric and Geometricly adjusted. They will all be the proper brightness, but the left hand side of all the image is slightly skewed to compensate for the geometry of cameras and can almost be stitched straight together in photoshop etc.

From what I can tell - EDN files are the same - but not geometrically shifted. They're the full frame, but corrected colourifically, not geometrically. These would be best for use in some
thing like PTGui etc.

Doug

[slinted]

Thing with these is that that are radiance calibrated - but also - geometrically adjust so they simply stitch one to the other all on their own. No PTGUI -just stitch-and-save

What is the Navcam equiv of these pancam adjusted file (the MRL's )- with radiometric and geometric ajustments all taken out?

MRD (and their linearized versions, the MRL files) apply to any camera...so there should be MRL files for the navs. The documentation for the dataset ( http://anserver1.eprsl.wustl.edu/sis/sis_ver3_7-2-04.pdf ) lists that there is a linearized version of the RAD files, called a RAL file, though it doesn't appear that any were released with the PDS.

The EDN files are not corrected at all (it might help to print out pages 22-24 of the document above, its got all the labels.) EDN's are downsampled EDR's (which have no camera model linearization or radiometric correction applied).

[slinted]

File tag master list:

Data Product, Non-linearized (NOMINAL), Linearized


Full frame EDR, “EFF”, “FFL”
Sub-frame EDR, “ESF”, “SFL”
Downsampled EDR, “EDN”, “DNL”
Thumbnail EDR, “ETH”, “THN”
Row Summed EDR, “ERS”, n/a
Column Summed EDR, “ECS”, n/a
Reference Pixels EDR, “ERP”, n/a
Histogram EDR, “EHG”, n/a
Inverse LUT RDR, “ILF” “ILL”
Inverse LUT RDR (Sub-frame), “ISF”, “ISL”
Inverse LUT RDR (Downsampled), “IDN”, “IDL”
Inverse LUT RDR (Thumbnail), “ITH”, “IHN”
Radiometrically-corrected RDR calibrated to absolute radiance units, “RAD”, “RAL”
Radiometrically-corrected RDR calibrated to absolute radiance units (Thumbnail), "RAT”, “RAN”
MIPLRAD Radiometrically-corrected RDR calibrated to absolute radiance units, specific to archived datasets only, “MRD”, “MRL”
MIPLRAD Radiometrically-corrected RDR calibrated to absolute radiance units, specific to archived datasets only (Thumbnail),“MRT”, “MRN”
Rad-corrected Float (32-bit) RDR, “RFD”, “RFL”
Rad-corrected Float (32-bit) RDR (Thumbnail), “RFT”, “RFN”
Radiometrically-corrected RDR calibrated to I/F radiance factor, “IOF”, “IOL”
Radiometrically-corrected RDR calibrated to I/F radiance factor (Thumbnail), “IOT”, “ION”
Rad-corrected Float (32-bit) RDR calibrated to I/F radiance factor, “IFF”, “IFL”
Rad-corrected Float (32-bit) RDR calibrated to I/F radiance factor (Thumbnail), “IFT” ,“IFN”
Radiometrically-corrected RDR calibrated for instrument effects only, in DN, “CCD”, “CCL”
Radiometrically-corrected RDR calibrated for instrument effects only, in DN Thumbnail), “CCT”, “CCN”
Rad-corrected Float (32-bit) RDR calibrated for instrument effects only, in DN, “CFD”, “CFL”
Rad-corrected Float (32-bit) RDR calibrated for instrument effects only, in DN (Thumbnail), “CFT”, “CFN”
Disparity RDR, “DIS”, “DIL”
Disparity RDR (Thumbnail), “DIT”, “DIN”
Disparity of Samples RDR, “DSS”, “DSL”
Disparity of Samples RDR (Thumbnail), “DST”, “DSN”
Disparity of Lines RDR, “DLS”, “DLL”
Disparity of Lines RDR (Thumbnail), “DLT”, “DLN”
XYZ RDR, “XYZ”, “XYL”
XYZ RDR (Thumbnail), “XYT”, “XYN”
XYZ Rover Vol Exclusion Mask RDR, “MSK”, “MSL”
XYZ Rover Vol Exclusion Mask RDR (Thumbnail) “MST” “MSN”
X Component RDR “XXX” “XXL”
X Component RDR (Thumbnail) “XXT” “XXN”
Y Component RDR “YYY” “YYL”
Y Component RDR (Thumbnail) “YYT” “YYN”
Z Component RDR “ZZZ” “ZZL”
Z Component RDR (Thumbnail) “ZZT” “ZZN”
Range (Distance) RDR “RNG” “RNL”
Range (Distance) RDR (Thumbnail) “RNT” “RNN”
UVW (XYZ) Surface Normal RDR “UVW” “UVL”
UVW (XYZ) Surface Normal RDR (Thumbnail) “UVT” “UVN”
U (X) Surface Normal RDR “UUU” “UUL”
U (X) Surface Normal RDR (Thumbnail) “UUT” “UUN”
V (Y) Surface Normal RDR “VVV” “VVL”
V (Y) Surface Normal RDR (Thumbnail) “VVT” “VVN”
W (Z) Surface Normal RDR “WWW” “WWL”
W (Z) Surface Normal RDR (Thumbnail) “WWT” “WWN”
Surface Roughness RDR “RUF” “RUL”
Surface Roughness RDR (Thumbnail) “RUT” “RUN”
Slope RDR “SLP” “SLL”
Slope RDR (Thumbnail) “SLT” “SLN”
IDD Reachability RDR “IDD” “IDL”
IDD Reachability RDR (Thumbnail) “IDT” “IDN”
VISTA Terrain RDR “VIS” “VIL”
VISTA Terrain RDR (Thumbnail) “VIT” “VIN”
ASD Terrain RDR “ASD” “ASL”
ASD Terrain RDR (Thumbnail) “AST” “ASN”