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  3. PDS products for the first two 3D radar images encompassing the polar regions of Mars, produced from observations on thousands of orbital passes of MRO SHARAD under MDAP funding, are now available at https://pds-geosciences.wustl.edu/missions/mro/sharad_3d.htm. Non-PDS SEG-Y formatted data and other recent products continue to be available via https://sharad.psi.edu/3D.php.
  4. October 13th, 2021 - Loaded reprocessed SHARAD radargram data from March 27, 2017, through April 20, 2018 into ODE.
  5. The Astromaterials Database bundle is posted. This bundle is a compendium of published geochemical data on astromaterials analyzed in terrestrial laboratories. The data were compiled by Kerstin Lehnert and colleagues as part of a PDART project now available online (https://www.astromat.org/) and further archived by the PDS Geosciences Node. The data may be accessed here: https://pds-geosciences.wustl.edu/missions/labdata/astromat.htm
  6. October 11th, 2021 - LRO LROC Release 48A has been loaded into ODE. - Loaded LRO LROC EDR and CDR data products released from 2021-06-16 to 2021-07-15 New data available through below links ODE product search page: https://ode.rsl.wustl.edu/moon/indexproductsearch.aspx ODE map search page: https://ode.rsl.wustl.edu/moon/indexMapSearch.aspx Please see ODE Lunar Holdings - https://ode.rsl.wustl.edu/odeholdings/Moon_holdings.html
  7. October 8, 2021 – MRO HiRISE Updates - MRO HiRISE EDR, RDR, DTM and Anaglyph data products released through September 2, 2021 (Orbit 70799) New data available through below links ODE product search page: https://ode.rsl.wustl.edu/mars/indexproductsearch.aspx ODE map search page: https://ode.rsl.wustl.edu/mars/indexMapSearch.aspx ODE data holdings page: https://ode.rsl.wustl.edu/odeholdings/Mars_holdings.html
  8. October 5th, 2021 - New MEX VMC Data Loaded into ODE - Loaded MEX new VMC EDR &RDR data products released with coverage through December 31st, 2020 (Orbit 21486). See https://ode.rsl.wustl.edu/odeholdings/Mars_holdings.html
  9. Thanks Ray. I only had doubts of them being artifact and not real absorptions. I'll find out explanation for them like you suggested. Deepali
  10. You need files of the same size to do New File Builder. Read up on making and using masks to subset another data set. Ray
  11. OK, now I see what you mean. These 1.2 micrometer features could be real absorptions. Smectite clays present such an absorption. Look at the ENVI spectral library that is part of CAT. Given that my job is to help you get to the spectra and interpret without interpreting artifacts, I will leave it to you to do the assignments. Ray
  12. Dear Ray, Please find the plot showing spectra in which I observed features around 1.2 micron. The wavelength region in question has been highlighted with a yellow box. The CRISM IDs are mentioned next to their respective spectrum. Full IDs were shared in one of the previous comments. Thank you. Deepali
  13. October 4th, 2021 - Mars Odyssey Release 77 Data Updates - Loaded NS and HEND raw and derived data into ODE through April 12th, 2021 - Updated THEMIS standard raw (IREDR, VISEDR), calibrated (IRRDR, VISRDR), derived (IRBTR, VISABR) data products from February 19th, 2002 to February 27th, 2021 - Updated THEMIS Projected Data Products volume (ODTGEO), including special projected (IRGEO2, VGEO2) and projected derived (IRPBT2, VISALB) data products from September 28th, 2013 to February 27th, 2021 New data available through below links ODE product search page: https://ode.rsl.wustl.edu/mars/indexproductsearch.aspx ODE map search page: https://ode.rsl.wustl.edu/mars/indexMapSearch.aspx ODE data holdings page: https://ode.rsl.wustl.edu/odeholdings/Mars_holdings.html
  14. October 4th, 2021 - Loaded reprocessed SHARAD radargram data from April 21, 2018 to August 9, 2020 into ODE. See errata.txt (https://pds-geosciences.wustl.edu/mro/mro-m-sharad-5-radargram-v2/mrosh_2101/errata.txt) for more information.
  15. Hello Sir, Please I don't clearly understand your instructions above, I read about "New File Builder" from I3harrisgeospatial.com, but it doesn't include what you mentioned, they give only instructions about files of the same size. Rochdi.
  16. You must join files of the same size, in terms of lines and samples. Subset the larger file using the smaller file to generate a mask of for the smaller size and then use the mask to subset the larger file to fit the size of the smaller file. Then use New File Builder. Read the instructions on doing New File Builder and you will see where you went astray. Rochdi, as before in our many emails, may I suggest that you need to read the documentation before embarking on a new process. Ray
  17. You lost me. Please resend the plots with the features labeled at 1.2 micrometers that you think might be due to mineralogy. Ray
  18. Geosciences Node data for InSight Release 10 are online at https://pds-geosciences.wustl.edu/missions/insight/index.htm. This includes data for RISE, RAD, IDA, and SEIS.
  19. Hello there, Please any help concerning my question? I'm trying to dedug the errors occurred in the code above but nothing seems to work as well as "New File Builder" and layer stacking tools. The first requires to have files that share the same size, and second tool gives inconvenient results. Looking forward to your reply,
  20. Dear Ray, I studied the 8778 spectra (Attachment 2) again and the locations from which both these spectra were recorded did not have any sharp boundaries. I also noted (please see 1.2-1.3 micron range) that despite being taken from different locations both the 8778 spectra have absorption at 1.2 micron. The feature has shoulders at 1.18 and 1.27 micron it appears as a curve rather than a spike. In fact this is true for all spectra in fig. 2 although I didn't reexamine all of them. I'll do that again and probably look at radiance data. Various explanations for decrease in band depth are also available through experimental studies. Therefore, I am in doubt that if artifacts display curved absorptions? I'll be grateful if you could give your insight in this. Thank you. Deepali
  21. Mars Odyssey Release 77 includes new GRS data. The new Raw data (EDR), Derived Neutron Data (DND), and Derived HEND Data (DHD) products cover the period January 1 through March 31, 2021. The new Averaged Neutron Data (AND) and Averaged HEND Data (AHD) products cover the period December 13, 2020 to April 12, 2021, which is Ls=330 to 360 in Odyssey mapping year 10 and Ls=0 to 30 in Odyssey mapping year 11. The data are online at the PDS Geosciences Node at http://pds-geosciences.wustl.edu/missions/odyssey/grs.html.
  22. Dear Ray, The absorption at 1.2 are curved and do not appear as spikes. I apologise if I am wrong in assuming so, I am new to this field. The second picture represents putative carbonate signatures. I studied that hydrous carbonates also have absorption bands at this wavelength. You obviously know better than me but I am not sure therefore I want to confirm. Thank you. Deepali
  23. These are spike artifacts in the data. Sometimes the instrument individual detectors are ill behaved and this is an example. Sometimes it is associated with going over sharp albedo boundaries where a detector has memories of what it was just sampling. There are no minerals that I know of that have such narrow single detector absorptions. Please ignore these spikes. Ray
  24. Thanks Ray. Here are two images of the spectra in which I observed the feature. The image IDs are FRT00008778, FRT0002BAD2, FRS0003C0E8, FRT00007A2D. Deepali
  25. Please attach a spectrum that shows this feature. I strongly suspect that it is an instrument artifact. Include the scene ID from which the spectrum was retrieved. Ray Arvidson PDS Geosciences Node Manager CRISM Science Team Member
  26. Hello, I am a PhD scholar exploring water associated morphology and mineralogy of the Martian surface. While analysing CRISM dataset for secondary minerals in my study area, I have observed a narrow band near 1.2 micron. This feature was observed in at least 3 datasets. I carried out literature survey for clarification regarding this feature. Some studies have attributed this an artifact while others propose it to be a result of (i) fe substitution in plagioclase feldspar (ii) fe-rich/coarse grained olivine (iii) weathering of impact glasses etc. (based on band centre and depth). Can anyone give pointers regarding its classification. Thank you.
  27. Absolutely, I launched the process with "New File Builder" under "Raster Management", but the same error has occurred once I added the second cube (as been below). Any help?
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