Susie Slavney
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Posts posted by Susie Slavney
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GRS/HEND data from Release 40 of the Mars Odyssey Mission are now online at the PDS Geosciences Node at http://pds-geosciences.wustl.edu/missions/odyssey/index.htm These raw and derived data were acquired from October 1 through December 31, 2011. There are no GRS/NS (neutron spectrometer) data for this release due to spacecraft orientation.
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Data from Release 10 of the Lunar Reconnaissance Orbiter mission are now online. This release includes data acquired between December 15, 2011, and March 14, 2012, for most instruments. It also includes the Mini-RF polar mosaics. Direct links to the LRO archives are on the PDS Geosciences Node LRO web page, and tools for searching, displaying and downloading selected data products are available through the Lunar Orbital Data Explorer.
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The current version of CAT is 7.1.1. It's available from our CRISM web page.
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Two releases of new data from the PDS Geosciences Node:
Release 32 of Mars Exploration Rover data from the APXS, Atmospheric Opacity, Microscopic Imager, Navcam, Pancam, RAT, and Rover Motion Counter experiments is available from the PDS Geosciences Node at http://pds-geosciences.wustl.edu/missions/mer/. This release includes data from the Opportunity rover only, and covers sols 2701 through 2790.
Release 21 of Mars Reconnaissance Orbiter data from the CRISM, SHARAD, and Radio Science experiments is available at http://pds-geosciences.wustl.edu/missions/mro/. This release includes data acquired between August 9 and November 8, 2011.
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GRS/HEND data from Release 39 of the Mars Odyssey Mission are now online at the PDS Geosciences Node. These raw and derived data were acquired from July 1 through September 30, 2011. There are no GRS/NS (neutron spectrometer) data for this release due to spacecraft orientation.
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Data from Release 9 of the Lunar Reconnaissance Orbiter mission are now online. This release includes data acquired between September 15 and December 14, 2011, for most instruments. Direct links to the LRO archives are on the PDS Geosciences Node LRO web page, and tools for searching, displaying and downloading selected data products are available through the Lunar Orbital Data Explorer.
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Please send your question directly to the programmer, Sun Yu.
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Data are now online from Release 7 of the MESSENGER Mission to Mercury. This release includes data from the first six months of orbital operations, through September 18, 2011. Data from the GRS, NS, MASCS, MLA, XRS, and Radio Science experiments are available from the PDS Geosciences Node MESSENGER web page. The page also has links to the EPPS, MAG, MDIS, and SPICE data sets, which are archived at other PDS nodes.
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Rachel,
The short answer to your question is no, it doesn't matter if you have trimmed the wavelength range.
I asked some CRISM team members and that was the consensus, after going through all their responses.
In particular, Frank Morgan says,
"There's one other step she might have to take to get the CIRRUS routines to
work on TRR3 data.
In addition to the spectral subsetting Rachel does, she might also have to
remove the two lines at each end of the image. Those are filled with 65535
at all bands in TRR3 data and can cause a "No good data..." failure.
With ENVI Basic Tools/Resize Data, click "Spatial Subset" and in the "Lines"
boxes, make sure the minimum is >= 3, and the max is <= NL-2 (where NL is
the number of lines in the full image, usually something like 420, 480,
etc).
If Rachel's already doing spatial subsetting and removing the lines at the
ends, this won't be a problem."
Hope this helps. If you have more questions, post them here; I'll see them.
We all apologize for taking so long to respond.
Susie
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New Mars Reconnaissance Orbiter data from the CRISM, SHARAD, and Radio Science experiments were released by the PDS Geosciences Node on March 1, 2012. This release covered the data acquisition period May 9 through August 8, 2011. The data are available from the MRO page on the Geosciences Node web site.
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Sarah,
The LOLA team has provided additional resources for understanding and using the surface roughness and slope GDRs:
1) Rosenburg, M.A., Aharonson, O., Head, J. W., Kreslavsky, M.A., Mazarico, E., Neumann, G.A., Smith, D.E, Torrence, M.H., Zuber, M.T. (2011), Global Surface Slopes and Roughness of the Moon from the Lunar Orbiter Laser Altimeter, Journal of Geophysical Research, 116, E02001, doi: 10.1029/2010JE003716. (available at http://www.agu.org/pubs/crossref/2011/2010JE003716.shtml )
2) The LOLA team has included a set of “extra” products that include maps of the coefficients that indicate a measure of surface roughness at http://imbrium.mit.edu/EXTRAS/FRACTAL/. See the README_FRACTAL.TXT for a description of these extra products.
I hope these help you understand the data set.
Regards,
Susan Slavney
PDS Geosciences Node
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New Mars Express ASPERA NPI data through June 30, 2011, has been posted on the PDS Geosciences Node.
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Release 31 of Mars Exploration Rover data from the APXS, Microscopic Imager, Navcam, Pancam, Rover Motion Counter, and Atmospheric Opacity experiments is available from the PDS Geosciences Node at http://pds-geosciences.wustl.edu/missions/mer/. This release includes data from the Opportunity rover only, and covers sols 2611 through 2700.
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Call for Abstracts
Planetary Data: A Workshop for Users and Software Developers
Flagstaff, AZ (USA)
June 25-29, 2012
The Astrogeology Group at the USGS announces Planetary Data: A Workshop for Users and Software Developers to be held June 25–29, 2012, at Northern Arizona University (NAU) in Flagstaff, Arizona. The meeting facility is at the du Bois Conference Center on the NAU campus. The two content tracks will share a common day on Wednesday to hold talks of overlapping interest. One or both tracks can be attended and there is no registration fee for either. Abstract submissions for presentations and/or posters are due by April 30, 2012.
Planetary Data Users Track
- Share information on digital planetary data, including availability, access and analysis methods.
- Present how-to guides for locating, acquiring, processing and working with digital planetary data.
Planetary Software Developers Track
- Bring researchers and technology experts together to discuss and exchange ideas to identify difficult planetary research issues that can be addressed by software development.
- Present planetary data processing and software development methods and techniques.
The Planetary Data Users track is sponsored by the NASA Planetary Data System, the Planetary Geology and Geophysics Program, and the Regional Image Facility network. The Planetary Software Developers track is sponsored by the NASA PG&G Cartography Program.
Schedule
April 30, 2012 Deadline for Abstract Submission (for presentation or poster)
June 15, 2012 Registration Deadline (if not submitting an abstract).
June 25-29, 2012 Workshop: Data Users (June 25-27), Software Developers (June 27-29)
The primary points of contact for the workshop are Trent Hare (thare@usgs.gov) and Lisa Gaddis (lgaddis@usgs.gov)
- Share information on digital planetary data, including availability, access and analysis methods.
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Rachel,
I have forwarded your question to a software developer on the CRISM Team, Frank Morgan.
Susie Slavney
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Mars Express HRSC Radiometrically Calibrated Image Data and Map Projected Image Data have been extended with coverage through June 30, 2011 (orbit 9565). The data are online at the PDS Geosciences Node, on the HRSC page.
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The third release of Radio Science data from the Lunar Reconnaissance Orbiter (LRO) mission is now online at the PDS Geosciences Node. This release includes new data through September 6, 2011, and revisions of all previously released Range data products.
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GRS/HEND and GRS/NS data from Release 38 of the Mars Odyssey Mission are now online at the PDS Geosciences Node. These raw and derived data were acquired from April 1 through June 30, 2011.
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Data from Release 8 of the Lunar Reconnaissance Orbiter mission are now online. This release includes data acquired between June 15 and September 14, 2011, for most instruments. Direct links to the LRO archives are on the PDS Geosciences Node LRO web page, and tools for searching, displaying and downloading selected data products are available through the Lunar Orbital Data Explorer.
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New Mars Reconnaissance Orbiter data from the CRISM, SHARAD, and Radio Science experiments were released by the PDS Geosciences Node on December 1. This release covered the data acquisition period February 9 through May 8, 2011. The data are available from the MRO page on the Geosciences Node web site.
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Well, June came and went without a new CAT release. I have asked the developers on the CRISM team. They expect to release CAT 6.8 by mid-February. It will be used in CRISM Data Users' Workshop being planned for the Lunar and Planetary Science Conference, March 19-23, 2012.
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The structure of the SGS record defined in the script is based on the format file summed_gamma_spectra_cols.fmt in the LABEL directory of the SGS archive. By comparing the script and the format file you can figure out how to specify 4-byte real numbers, 8-byte real numbers, 2-byte unsigned integers and character strings in IDL. To modify the script to read AND and AHD files, you'll need to create similar structures based on the AND and AHD format files, in avg_neutron_data_cols.fmt and avg_hend_data_cols.fmt.
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Chase,
I have posted an IDL script that demonstrates how to read an SGS data file. It reads as many records as you specify into an IDL array. It also writes a few selected columns of data (not the spectra) to an output text file. You can, of course, change what is written out; this is just an example of how to do it. The output is a csv (comma-separated-value) file that is easily opened in Excel.
The download is sgs_read.txt on the Downloads tab of this forum. Rename it to sgs_read.pro to use in IDL.
To run this script in IDL, use the command
sgs_read, "sgs_01_015_030_00.dat", my_sgs, 72
This will read all 72 records in the data file. The spectra go into the IDL variable my_sgs[*].gamma_spectrum. You can then plot one of them with a command like
plot, my_sgs[70].gamma_spectrum
Good luck,
Susie
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Chase,
I can help you better if you narrow down the problem a bit. Which of the GRS data sets do you want to use? Probably not the EDR (raw) data. The CGS data set has calibrated individual spectra, which are not very useful unless you bin them to improve the signal to noise. The SGS data set has binned data. There are higher level derived products which are tables of various parameters by latitude and longitude. What do you want to do with the data, and what have you already tried that didn't help you?
Susie Slavney
How to get SHARAD data ground track
in For data users
Posted
Jun,
The label gives you the starting and ending sub-spacecraft points for the entire SHARAD file. Each record in the file has information about a single SHARAD observation, including the sub-spacecraft latitude and longitude at the time of the observation. You'll find these in columns 77, 78, and 79 of each record. See the file RDR.FMT in the LABEL directory of the archive for a description of all the columns. Both the planetocentric and planetographic latitude values are recorded. (For an explanation of the difference, see the PDS Standards Reference, section 2.4, Body-Fixed Planetary Coordinate Systems.)
I hope this helps you.
Susan Slavney