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  2. Overlay M3 and RELAB spectra

    Attached are some slides showing how I used ENVI to ingest M3 lunar data and lab data, resample the lab data to the M3 wavelengths, and overplot the two data sets. Ray Arvidson PDS Geosciences Node Manager spectral_resampling.pdf
  3. November 11th, 2017 - THEMIS IR-reprocessed data from releases 0048, 0049, and 0050 (orbits 52300-55599) have been loaded into ODE. Please see ODE Mars Holdings – https://wufs.wustl.edu/ode/odeholdings/Mars_holdings.html
  4. Earlier
  5. Mars elevation data: longtitude, lattitude, elevation.

    I asked the ODE developer if she could suggest a way to do this. Here's her answer. She reads this forum too. Hi Susie, Below link shows an example on how to read those MEGDR products with Matlab. The user could modify the code a little bit to output a table with lat, lon, and height. https://www.mathworks.com/matlabcentral/fileexchange/13444-using-data-from-mola?focused=6780621&tab=example&requestedDomain=www.mathworks.com Another way is to convert the PDS IMG to ERDAS IMG in ArcGIS. Then use ERDAS to convert the ERDAS IMG to an ASCII table with lat, lon, and height. Both Matlab and ERDAS are commercial software. Otherwise, the user needs to write his own program to read the PDS IMG data. The label includes everything that the user needs to know to read the data file. Please let me know if the user needs further help. Thanks, June
  6. Overlay M3 and RELAB spectra

    Here to help. I am not sure why you have a screen shot of a vertical profile, which suggests to me you opened the spectral library as an image. To examine the spectral library data you need to open the file as a spectral library, not as an image. Did you open it as a spectral library, and could you display spectra? If you did this and can display spectra, resampled to M3 bandpasses, you should be able to overlay spectra from an M3 cube pixel with the lab spectra. Let me know what you did and I can help more if the instructions above are not enough. Worst case is for me to try what you wanted to do with the exact data sets you used. Ray Arvidson
  7. The query tool you mentioned is for PEDRs, I'd like to look at the globally gridded MEGDR products. When I use the ODE data product search (as suggested at the top of the PEDR Query Tool 2 page), I can bring up a file, for example MEGT90N180GB.IMG, however, the PDS product files and Derived files do not include a simple text table (lat, lon, elevation), it only includes more images and some shapefiles. What is the easiest way to convert the MEGDR products to a simple text table?
  8. Mars elevation data: longtitude, lattitude, elevation.

    The MOLA PEDR Query Tool I mentioned before will allow you to create output as an ASCII text file.
  9. Overlay M3 and RELAB spectra

    Continued.... Some screenshots of the steps followed while following the spectral resampling procedure.
  10. Overlay M3 and RELAB spectra

    Hello! Thank you very much for your reply! I followed the steps mentioned using ENVI Classic and am sharing some of the results with you. First, I chose the 62231 ASCII file and converted it to a spectral library using the RELAB ENVI header file information, which I found here (https://lost-contact.mit.edu/afs/enea.it/software/rsi/envi_3.5/spec_lib/igcp264/igcp_2.hdr). Once that was done, I tried to match the same with a small region that I was able to subset from one of the M3 (Level 2) images. Unfortunately, I am still unable to match the two spectra. Please let me know where I am going wrong. For your convenience, I am attaching some screenshots.
  11. The MEGDRs in the link you gave are in a .img format. What is the easiest way to convert these .img files into simple text files that have lat, lon, elevation in the columns?
  12. Overlay M3 and RELAB spectra

    Greetings: You can use both the new ENVI5 series interfaces or the Classic ENVI interface to a resample spectral data set to a new set of center wavelengths and, optionally, band passes. You will find the spectral resampling procedure under the toolbox on the right hand side of the ENVI5 series interface, and under the spectral heading on the pull down Classic menu. Next select an input data file (it needs to have wavelengths in the header record) that you designate as the new wavelengths for the spectrally resampled data. The dialog box then asks you for the output file that will be resampled. If there are band passes (like Gaussians) in the input data file header these will also be used in resampling the output data set. I just tried it with an OMEGA L data set as the input and one of the ENVI JHU spectral libraries as an example and it worked. It resampled the JHU data to the OMEGA wavelengths and made a new JHU spectral library. Also works with spectral cubes as input and output data sets, etc. Let me know if you still have some problems and we can talk on the phone. Ray Arvidson PDS Geosciences Ndoe Manager. 11/6/17
  13. Overlay M3 and RELAB spectra

    Hi! I want to compare spectra generated from M3 with RELAB library spectra (62231, Apollo 16 landing site soil sample) using ENVI. One specific issue is, spectral library from RELAB (62231) has 451 bands, whereas M3 has 86 spectral bands. This is apparently creating a mismatch and is not allowing me to compare the two spectra. Please help!
  14. November 3, 2017 – MRO HiRISE Updates - MRO HiRISE EDR, RDR, DTM and Anaglyph data products released through September 30, 2017 (Orbit 52,399) See https://wufs.wustl.edu/ode/odeholdings/Mars_holdings.html
  15. The PDS Geosciences Node released the MakeLabels tool this July. The program can be used to generate PDS4 labels using a label template and one or two Excel spreadsheets. It replaces placeholders in the template with values from the spreadsheets. In fact it can be used to output any type of ASCII file. More information about the program and it's downloadable file can be found on the PDS Geosciences Node website. http://pds-geosciences.wustl.edu/tools/makelabels.html
  16. October 8, 2017 – MRO HiRISE Updates - MRO HiRISE EDR, RDR, DTM and Anaglyph data products released through August 30, 2017 (Orbit 51,999) - ODE also updated the “reprocessed COLOR RDR products and associated extras products for data acquired on orbits 800 - 5,999 (September 29, 2006 - November 6, 2007)” in this release. “The updated color products have improved color registration across all three bands and less aggressive noise filtering applied to make it easier for science users to identify color registration problems.” See https://wufs.wustl.edu/ode/odeholdings/Mars_holdings.html
  17. October 5th, 2017 - New OMEGA EDR data for extended mission 5 loaded into ODE Updated MEX OMEGA EDR data products released through December 11th, 2016 (Orbit 16398). See https://wufs.wustl.edu/ode/odeholdings/Mars_holdings.html
  18. October 4th, 2017 - Mar Odyssey Release 61 Data Updates Updated THEMIS standard data products (IREDR, IRRDR, IRBTR, VISEDR, VISRDR and VISABR data) from February 19th, 2002 to March 27th, 2017 Updated THEMIS geometry data products (IRGEO2, IRPBT2, VGEO2, and VISALB data) from September 28th, 2013 to March 27th, 2017 Loaded NS and HEND raw and derived data into ODE through March 31st, 2017 See https://wufs.wustl.edu/ode/odeholdings/Mars_holdings.html.
  19. Odyssey Release 61

    Mars Odyssey Release 61 includes new raw data (EDR) , Derived Neutron Data (DND) and Derived HEND Data (DHD) products covering the period January 1 through March 31, 2017. Averaged Neutron Data (AND) and Averaged HEND Data (AHD) products cover the period December 23, 2016, through March 10, 2017, Ls 240 to 330. The data are online at the PDS Geosciences Node at http://pds-geoscienc...dyssey/grs.html.
  20. September 26th, 2017 - LRO Release 31 has been loaded into ODE Updated LOLA EDR products from June 18th, 2009 to August 3rd, 2017 Updated LOLA RDR products from July 13th, 2009 to August 3rd, 2017 Updated LOLA GDR products from July 13th, 2009 to February 2nd, 2017 Updated LAMP EDR and RDR products from July 6th, 2009 to June 15th, 2017 Updated LEND EDR_SCI, EDR_HK, RDR_RSCI, and RDR_CHK products from June 18th, 2009 to June 14th, 2017 Updated LEND RDR_ALD, RDR_DLD and RDR_DLX products from June 27th, 2009 to March 14th, 2017 Updated Diviner EDR and RDR products from July 5th, 2009 to June 16th, 2017 Updated Diviner GDR products from July 5th, 2009 to October 23rd, 2016 Updated LROC EDR, CDR and RDR products from June 30th, 2009 to June 16th, 2017 Updated LOLA RDR query tool database from July 13th, 2009 to August 3rd, 2017 Updated Diviner RDR query tool database from July 5th, 2009 to June 16th, 2017. Please see ODE Lunar Holdings - https://wufs.wustl.edu/ode/odeholdings/Moon_holdings.html
  21. 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.
  22. 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.
  23. 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
  24. I am the PI on a proposal to NASA PSTAR for a project that will collect digital data (predominantly still images and video) from Earth-based geological studies. I estimate about 3 Tb of data will be collected over 3 years. Our data will address operations of the Mars 2020 mission. I am wondering if the PDS Geosciences Node might be a suitable archive for our data.
  25. 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
  26. Hello, I am currently trying to find examples of the surface temperature on Mars, as taken by the Climate Sounder on the MRO, for the 3rd of August 2015. However, I'm very new at working with this data set and it is proving tricky. Firstly, there are a range of columns which mention "temp" in their title, however no amount of internet searching will tell me which one relates to actual ambient temperatures. Secondly, there should be some mention of Channels (aka Channel A. being measurements closest to the ground) but there isn't, so I'm not sure how to work out which data entries are from the surface. Thirdly, of all the temperature-related columns, none of them have data which varies by more than 1 degree throughout the 24 hour period, which suggests that they are actually referring to instrument temperatures rather than planetary temperatures. All in all, it is proving a tad difficult. The dataset was downloaded from Mars Orbita Datal Explorer. Any help at all would be greatly appreciated. A huge thank you in advance, Emily
  27. September 19th, 2017 - More MEX HRSC RDR Version 3 Data Loaded into ODE HRSC new radiometrically calibrated (RDR version 3) image data have been loaded into ODE, with coverage through August 17th, 2016 (Orbit 10-16000). See https://wufs.wustl.edu/ode/odeholdings/Mars_holdings.html
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