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Susie Slavney

Geo Staff
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Everything posted by Susie Slavney

  1. A new data set of MER Spirit Mini-TES artifact-corrected spectra is now available at the PDS Geosciences Node. This data set was prepared by Steve Ruff and funded by the NASA PDART program. See the readme file and the User's Guide for more information.
  2. Mars Exploration Rover Release 53

    Data from Release 53 of the Mars Exploration Rover mission is now online at the PDS Geosciences Node. This release includes APXS, Atmospheric Opacity, MI, Navcam, Pancam, and Rover Motion Counter data from sols 4591 through 4680 for the Opportunity rover.
  3. Repository for terrestrial geology applied to Mars

    Michael, Please reply to me at geosci@wunder.wustl.edu and tell me more about your project, including the science content and format of data products. Thanks, Susie Slavney
  4. Hi Emily, You don't mention which of the three Mars Climate Sounder (MCS) data sets you are using. If you are looking for surface temperatures, you probably want to use the MCS DDR (Derived Data Record) data set. The primary documentation for this data set is here: https://atmos.nmsu.edu/PDS/data/MROM_2128/DOCUMENT/DP_SIS.PDF. To see if this is the right one, look at Table 2, which describes the columns in the data table. These data tables are ASCII text, so you can open them in any text editor or even in your browser. The columns are also described in a software-readable way in the "format files" in the LABEL directory of the archive, here: https://atmos.nmsu.edu/PDS/data/MROM_2128/LABEL/. The other two MCS data sets are the RDR (Reduced Data Record) and EDR (Experiment Data Record). EDRs are raw data from the instrument sensors. RDRs are calibrated versions of the EDRs. Finally, the DDRs contain data converted to geophysical units, derived from the RDRs. For each of the three data sets, you'll find an overview of its contents in the file CATALOG/DATASET.CAT, a detailed description in the file DOCUMENT/DP_SIS.PDF, and complete column descriptions in *.FMT files in the LABEL directory. All these files are on the MCS archive volumes, which are hosted at the PDS Atmospheres Node at http://pds-atmospheres.nmsu.edu/data_and_services/atmospheres_data/Mars/Mars.html (scroll down to the MRO section). I hope this is enough to get you started. Susie Slavney
  5. M3

    First look in the Orbital Data Explorer's User Manual section on the M3 instrument, here: http://ode.rsl.wustl.edu/moon/pagehelp/quickstartguide/index.html?isros_chandrayaans_m3.htm. At the bottom of the page are some resources for finding and working with M3 data, including the M3 ENVI User's Guide. If you can't find the information you need, please contact the PDS Imaging Node, who archives the M3 data, at https://pds-imaging.jpl.nasa.gov/feedback.html.
  6. This forum is for questions about using data from the PDS Geosciences Node archives. If you are not already familiar with the archives, it is best to start by exploring the Geosciences Node web site, pds-geosciences.wustl.edu, especially the pages Frequently Asked Questions and Help for Data Users. Anyone may post a question or an answer in this forum, although posts are moderated, and irrelevant or offensive posts will not be permitted. You must be logged in to submit a post; register here to get an account.
  7. LRO Release 31

    Release 31 of Lunar Reconnaissance Orbiter data is now online at the Geosciences Node. This release includes new data acquired between March 15, 2017, and June 14, 2017, along with some revisions to previously released products, for CRaTER, Diviner, LAMP, LEND, LOLA, and LROC. Data can be found on the Geosciences Node LRO page. The Lunar Orbital Data Explorer allows searching and downloading of LRO data.
  8. MRO SHARAD EDR data released

    SHARAD EDR data from the ASI team members have been posted, covering previous MRO releases 23, 24, 33, and 34 (through Feb. 21, 2015). The team is recovering data from deliveries that were missed due to a hiatus in ground operations. See ERRATA.TXT for details. The data are available on the PDS Geosciences Node's SHARAD page.
  9. MRO Release 42

    Release 42 from the Mars Reconnaissance Orbiter mission includes new data for CRISM, SHARAD (U.S.), and Gravity / Radio Science. The data are online at pds-geosciences.wustl.edu/missions/mro.
  10. Mars Science Laboratory Release 15

    Release 15 of Mars Science Laboratory (MSL) data includes new raw and derived data acquired on sols 1515 through 1648.The data are available through PDS web sites, starting at the Geosciences Node MSL page. The MSL Analyst's Notebook is a useful tool for searching, browsing, and downloading MSL products.
  11. MRO SHARAD EDR data from the ASI operations facility have been delivered to cover the period February 9, 2013, through August 9, 2014. This is the first of several interim deliveries that will recover the backlog of data from the hiatus of operations that took place between June 2012 and March 2013. See ERRATA.TXT for details. Also, SHARAD radargrams from the U.S. team members have been delivered to cover the period May 12, 2016, through November 6, 2016 (MRO Releases 40 and 41). The data are available on the PDS Geosciences Node web page for SHARAD.
  12. Odyssey Release 60 data now online

    New Mars Odyssey GRS data are included in Release 60. Raw data, Derived Neutron Data (DND) and Derived HEND Data (DHD) products cover the period October 1 through Decemb er 31, 2016. Averaged Neutron Data (AND) and Averaged HEND Data (AHD) products cover the period October 13 through December 23, 2016, Ls 240 to 285. The data are online at the PDS Geosciences Node at http://pds-geoscienc...dyssey/grs.html.
  13. Mars Exploration Rover Release 52

    Data from Release 52 of the Mars Exploration Rover mission is now online at the PDS Geosciences Node. This release includes APXS, Atmospheric Opacity, MI, Navcam, Pancam, Rover Motion Counter, and RAT data from sols 4501 through 4590 for the Opportunity rover.
  14. LRO Release 30

    Release 30 of Lunar Reconnaissance Orbiter data is now online at the Geosciences Node. This release includes new data acquired between December 15, 2016, and March 14, 2017, for CRaTER, Diviner, LAMP, LEND, LOLA, and LROC. Data can be found on the Geosciences Node LRO page. The Lunar Orbital Data Explorer allows searching and downloading of LRO data.
  15. CRISM Analysis Tool Updates

    The CRISM Analysis Tool (CAT) is a collection of ENVI and IDL procedures for reading, displaying, and analyzing MRO CRISM data. CAT is now available for ENVI versions 4.x and 5.x, for both Unix and Windows systems. See details at http://pds-geosciences.wustl.edu/missions/mro/crism.htm#Tools.
  16. 'Unable to resolve host address pds-imaging.jpl.nasa'

    Sounds like the broken link is within ISIS. I suggest you contact the ISIS developers: https://isis.astrogeology.usgs.gov/fixit/projects/isis.
  17. Mars Odyssey Release 59

    New Mars Odyssey GRS data are included in Release 59. Raw data, Derived Neutron Data (DND) and Derived HEND Data (DHD) products cover the period July 1 through September 30, 2016. Averaged Neutron Data (AND) and Averaged HEND Data (AHD) products cover the period June 28 through October 7, 2016, Ls 165 to 240. The data are online at the PDS Geosciences Node at http://pds-geoscienc...dyssey/grs.html.
  18. Mars Exploration Rover Release 51

    Data from Release 51 of the Mars Exploration Rover mission is now online at the PDS Geosciences Node. This release includes APXS, Atmospheric Opacity, MI, Navcam, Pancam, Rover Motion Counter, and RAT data from sols 4411 through 4500 for the Opportunity rover.
  19. MSL Release 14

    Release 14 of Mars Science Laboratory (MSL) data includes new raw and derived data acquired on sols 1418 through 1514.The data are available through PDS web sites, starting at the Geosciences Node MSL page. The MSL Analyst's Notebook is a useful tool for searching, browsing, and downloading MSL products.
  20. LRO Release 29

    Release 29 of Lunar Reconnaissance Orbiter data is now online at the Geosciences Node. This release includes new data acquired between September 15 and December 14, 2016, for CRaTER, Diviner, LAMP, LEND, LOLA, and LROC. Data can be found on the Geosciences Node LRO page. The Lunar Orbital Data Explorer allows searching and downloading of LRO data.
  21. MRO Release 40

    Release 40 from the Mars Reconnaissance Orbiter mission includes new data for CRISM, SHARAD (U.S.), and Gravity / Radio Science. The data are online at pds-geosciences.wustl.edu/missions/mro.
  22. readsharadrdr.m.txt

    Version 1

    57 downloads

    Readsharadrdr.m.txt is a Matlab function called by the script sharad_radargram_2.m. Both scripts are from Roberto Orosei, ASI SHARAD team. After downloading, rename the file readsharadrdr.m.
  23. sharad_radargram_2.m.txt

    Version 1

    61 downloads

    Sharad_radargram_2.m.txt is a Matlab script that produces a SHARAD radargram. It uses the function readsharadrdr.m, also posted here. Both scripts are from Roberto Orosei of the ASI SHARAD Team. After downloading, rename the file to Sharad_radargram_2.m.
  24. Having trouble reading the .img file

    Look near the beginning of the label for a line like ^IMAGE = some-number. That's the record number where the image starts. You also have to know how long a record is; that's in the line RECORD_BYTES = some-number. It's also possible that the offset to the start of the image is given in bytes instead of records; in that case it will look like ^IMAGE = some-number <BYTES>. So for example, if ^IMAGE = 21 and RECORD_BYTES = 128, then you skip the first 20*128=2560 bytes in the file to get to the first byte in the image. It will always start on a record boundary. It doesn't necessarily start right after the END statement in the label; there might be some padding of NUL bytes to fill out the record, or there might be some header records or history records before you get to the image.
  25. Having trouble reading the .img file

    Samuel, You're right that LINES is the number of lines from top to bottom in the image (i.e. height), LINE_SAMPLES is the number of samples (pixels) in one line (i.e. width), and SAMPLE_BITS is the number of bits per pixel. The other important piece of information is SAMPLE_TYPE = MSB_INTEGER, which tells you each pixel is a signed integer stored in most-significant-byte-first order, which is the usual storage order on a Mac or a Unix-based system. For a Windows system, the usual storage order is LSB, least-significant-byte-first. That means when reading this image on a Windows system you will probably have to swap the two bytes in each pixel. If you display the image and it looks very strange, the first thing to try is swapping the bytes. The checksum for the file is a digital signature unique to that file; the simplest type of checksum is the sum of the values of all the bytes in the file. It's not the number of bytes in the file. The checksum is used to make sure the file has been downloaded without corruption. See our page http://pds-geosciences.wustl.edu/dataserv/checksums.html. Susie Slavney
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