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June Wang

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Posts posted by June Wang

  1. January 5th, 2018 - Mar Odyssey Release 62 THEMIS Data Updates

    Updated THEMIS standard data products (IREDR, IRRDR, IRBTR, VISEDR, VISRDR and VISABR data) from February 19th, 2002 to June 9th, 2017
    Updated THEMIS geometry data products (IRGEO2, IRPBT2, VGEO2, and VISALB data) from September 28th, 2013 to June 9th, 2017
    Release 62 of NS and HEND data is delayed. The data would be available by January 15, 2018.
    See https://wufs.wustl.edu/ode/odeholdings/Mars_holdings.html.

  2. December 19th, 2017 - LRO Release 32 has been loaded into ODE.
    Updated LOLA EDR products from June 18th, 2009 to September 20th, 2017
    Updated LOLA RDR products from July 13th, 2009 to September 20th, 2017
    Updated LAMP EDR and RDR products from July 6th, 2009 to September 15th, 2017
    Updated LEND EDR_SCI, EDR_HK, RDR_RSCI, and RDR_CHK products from June 18th, 2009 to September 14th, 2017
    Updated LEND RDR_DLD and RDR_DLX products from June 27th, 2009 to June 14th, 2017
    Updated Diviner EDR and RDR products from July 5th, 2009 to September 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 September 15th, 2017

    Updated LOLA RDR query tool database from July 13th, 2009 to September 20th, 2017
    In Progress Diviner RDR query tool database from July 5th, 2009 to September 15th, 2017.

    A few LOLA GDR count gridded products have been revised; see ERRATA.TXT for details.

    Please see ODE Lunar Holdings - https://wufs.wustl.edu/ode/odeholdings/Moon_holdings.html

     

  3. December 3rd, 2017 - MRO Release 43 Loaded into ODE.
    -    Updated MRO CRISM EDR and CDR products from September 27th, 2006 to August 9th, 2017
    -    Updated MRO CRISM DDR products from September 27th, 2006 to July 15th, 2017
    -    Updated MRO CRISM TRDR products from September 27th, 2006 to July 15th, 2017
    -    Updated MRO raw gravity data products released through July 26th, 2017
    -    Updated SHARAD Radargram data products released through May 12th, 2017 (orbits through 50596).
    -    Updated MRO MCS EDR, RDR and DDR products from September 15th, 2006 to July 31st, 2017
    -    Updated MRO CTX EDR products from August 30th, 2006 to May 31st, 2017
    -    Updated MRO HiRISE EDR, RDR, anaglyph and DTM products released through October 31st (Orbit 52799), 2017

    Please see ODE Mars Holdings – https://wufs.wustl.edu/ode/odeholdings/Mars_holdings.html

     

  4. 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

     

  5. 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.

     

  6. 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

     

  7. User Bobo Xi
    August 30, 2017 9:06 AM

    
    Dear Prof.
    
    I'm a postgraduate in xidian university,china. I'm research in the hyperspectral imge of mars at present and have downloaded the CRISM data on the PDS Geosciences Node. The datatype of the data is MTRDR and  ID is “frt0000474a_07_if164j_mtr3”. Then,I have two problems with it :
    
    1.First, I have read the "CRISM Data Product Specification", it said that the TER datas is "A spatially reconciled, full spectral range 
    
    I/F targeted observation central scan image cube in the IR (L-detector) sensor space that has been corrected for geometric, photometric, atmospheric, and instrumental effects." and "MTRDRs are map-projected versions of TER data products." Then,I want to confim that does that mean that the MTRDR datas have calibrated for geometric, photometric, atmospheric,  instrumental effects and map-projected ? 
    
    2. Second,the attachment of this email is the Browse Image of the MTRDR data  I have dowmloaded . My question is that what is the meaning 
    
    of the curve below ?In addition, I have open the MTRDR data by envi5.1 and why the spectral curve almost stay the same for each pixel in the image ?
    
    I'm feeling very confused and looking forward to your reply!
    
    Best regards!

     frt0000474a_07_if164j_mtr3_composite.png
     

     
    User Seelos, Frank P.
    August 30, 2017 1:38 PM
     

    
    > I want to confim that does that mean that the MTRDR datas have calibrated for geometric, photometric, atmospheric,  instrumental effects and map-projected?
    
    This is correct. The only structural difference between the sensor space TER spectral image cube (the IF product) and the corresponding map-projected MTR spectral image cube is that radiometrically questionable bands have been removed from the MTR. The TER image cube has 545 bands and the MTR has 489.
    
    > Browse Image of the MTRDR ... My question is that what is the meaning of the curve below
    
    The plot shows the scene median and [5, 95] percentile envelope spectra.
    
    > the spectral curve almost stay the same for each pixel in the image
    
    The spectral variability in this scene is subdued by a relatively dusty atmosphere. The TER/MTRDR processing accounts for atmospheric gas absorptions and the relative geometric/photometric effects of aerosol scattering, but the data are top-of-atmosphere corrected I/F, not model ground reflectance.

    User Bobo Xi
    August 30, 2017 11:14 PM

    
    Hello,
    
    Thanks for your reply. but exuse me, I'm still not clearly understand my last question. In other words,if I want to make mineral classification in the image by using the material's spectral variability, does that mean that I have to use the TRDR datas and calibrate them myself by using some ground reflectance model rather than directly using the MTRDRs?

    User Seelos, Frank P
    2017-09-01 03:40:48

    
    If you’re interested in quantitative mineral abundance modeling then the retrieval of surface spectral reflectance through some type of surface/atmosphere separation or atmospheric correction will be required – either the TRDRs or the TERs/MTRDRs could be the starting point in this case. However, mineral identification, classification, and investigation of scene spectral variability are definitely possible with corrected I/F data – the majority of the CRISM-derived results in the literature used this type of workflow.
    
    Thanks,
    
    -Frank

    User Bobo Xi
    September 03, 2017 9:13 PM

    
    Sorry, I have been busy with something else and forgotten to write back. After seeing your reply I have totally understood, thank you very much!

     

  8. September 3rd, 2017 - MRO Release 42 Loaded into ODE.
    -    Updated MRO CRISM EDR and CDR products from September 27th, 2006 to May 9th, 2017
    -    Updated MRO CRISM DDR products from September 27th, 2006 to May 8th, 2017
    -    Updated MRO CRISM LDR products from July 10th, 2009 to April 29th, 2017
    -    Updated MRO CRISM TRDR products from September 27th, 2006 to May 8th, 2017
    -    Updated MRO raw gravity data products released through October 21st, 2017
    -    Updated SHARAD Radargram data products released through 2017-02-16 (orbits 48202 through 49499).
    -    Updated MRO MCS EDR, RDR and DDR products from September 15th, 2006 to April 30th, 2017
    -    Updated MRO CTX EDR products from August 30th, 2006 to March 1st, 2017

    "There is no derived gravity data in this release. Previous releases of HiRISE data cover this period, and HiRISE's next three months of data are not all available yet."

    Please see ODE Mars Holdings – https://wufs.wustl.edu/ode/odeholdings/Mars_holdings.html

     

  9. August 25, 2017 - ENVI header files have been loaded into ODE for MOLA topographic map products

    ENVI header files for the MEGDR image data products have been loaded into ODE. The ENVI headers can be downloaded from the data product search result page, along with the document MOLA_ENVI.PDF, which explains the use of the header files and other methods for providing correct map projection information to ENVI and ArcGIS. See http://pds-geosciences.wustl.edu/mgs/mgs-m-mola-5-megdr-l3-v1/mgsl_300x/extras/EXTRINFO.TXT for more information.
     

  10. August 25, 2017
    ENVI header files for the MEGDR image data products have been provided in the EXTRAS directory of the MOLA MEGDR archive in http://pds-geosciences.wustl.edu/mgs/mgs-m-mola-5-megdr-l3-v1/mgsl_300x/extras/, along with the document MOLA_ENVI.PDF, which explains the use of the header files and other methods for providing correct map projection information to ENVI and ArcGIS. See EXTRINFO.TXT for more information. The ENVI header files and MOLA_ENVI.PDF can be downloaded from the data product search result page in ODE. 



     

  11. July 10th, 2017 - Mar Odyssey Release 60 Data Updates

    Updated THEMIS standard data products (IREDR, IRRDR, IRBTR, VISEDR, VISRDR and VISABR data) from February 19th, 2002 to December 26th, 2016
    Updated THEMIS geometry data products (IRGEO2, IRPBT2, VGEO2, and VISALB data) from September 28th, 2013 to December 26th, 2016
    Loaded NS and HEND raw and derived data into ODE through December 31st, 2016
    See https://wufs.wustl.edu/ode/odeholdings/Mars_holdings.html and http://static.mars.asu.edu/pds/errata.txt.

     

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