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Jennifer Ward

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Everything posted by Jennifer Ward

  1. User pmishra Sep 20 2013 05:21 AM Hi... This was useful information. I am using LRO Lola's roughness data (LDRM_75N_240M.img). I was trying to open it in ENVI. However problem occurs in putting values for map projection. Which value should be given for latitude in true scale etc.? Could you please specify the values to be entered for this data type. It would be too helpful if you please tell me how to correctly open the LRO roughness data in ENVI. Regards- Pooja User June Wang Sep 25 2013 11:35 AM Update the Projection of LRO LOLA Products in ENVI 5.0 classic When working with the LRO LOLA Products, the JP2000 products are read in ESRI® ArcGIS with the correct map projection information, but ENVI cannot read the PDS IMG and JP2000 products correctly. The following steps will take LOLA GDR product: "LDRM_75N_240M.img" as an example, and show you how to fix this in ENVI 5.0 classic. 1. Update the map projection files - ENVI includes three map projection files related to the definition of datum, ellipse and map projections. First check where ENVI points to the map projection files. - Select File > Preference, under User Defined Files Tab, find Map Projection File. - If the right blank is empty, ENVI will point to the map projection files saved under the default system folder where ENVI was first installed, e.g.,"C:\Program Files\Exelis\ENVI50\classic\map_proj\" for ENVI 5.0 classic. This path may vary machine by machine. Otherwise, ENVI will point to the map projection files saved in the path as defined in the right blank. - Go to the folder where ENVI points to the map projection files. Backup the three files: "datum.txt", "ellipse.txt", and "map_proj.txt" before you make any changes. - Update file datum.txt - Open datum.txt - Add string "D_Moon_2000, GCS_Moon_2000, 0, 0, 0" to the end of the file - Save (If you have permission problem to save the file, please copy the file out to another folder. After changing, copy the saved file back to the original folder. If the permission is still denied, please give your system administrator to update the files.) - Update file ellipse.txt - Open ellipse.txt - Add string "GCS_Moon_2000, 1737400.0, 1737400.0" to the end of the file - Save (take care of the permission problem as above) - Update file map_proj.txt - Open map_proj.txt - Add string "31, 1737400.0, 1737400.0, 90.000000, 0.000000, 0., 0., Moon North Polar Stereographic" to the end of the file - Save (take care of the permission problem as above) - Restarting ENVI will update the changes in the map projections. 2. Open the file in ENVI and edit the map information in the image header (take LDRM_75N_240M.IMG as an example) - Open LDRM_75N_240M.IMG in ENVI 5.0 classic - Follow the instructions in the original blog post above to edit the map information - Select File > Edit ENVI Header and select the image. Click OK. - From Edit Attributes, choose Map Info. - Click Change Proj. - In the pop-up Projection Selection window - Choose the projection "Moon North Polar Stereographic " that was defined in the first step - Choose D_Moon_2000 as the projection datum for the lunar product. - Use meter as units - Click OK - We go back to the Edit Map Information dialog. In this dialog, enter values from the label. For example, image coordinate x,y of 1905.6, 1905.6 (the projection center of this product) might be 0,0 with pixel size of 240 m/pixel. Click OK to save map information and OK to save header. - You can follow the same operations in step 2 to edit the map information of the JP2000 products, E.g., LDRM_75N_240M.JP2. This JP2000 product has the same product ID with LDRM_75N_240M.img. ENVI will treat them with the same *.hdr file. If both JP2 and IMG file are saved in the same folder, ENVI will have problem to open both files together. Either save them to different folders or change one of the file names will solve the conflict. User pmishra Sep 25 2013 11:59 PM Hi June, In step 2, of Edit Map information dialogue, I have put map coordinates as 90 N and 0 E. Is it correct? Thanks Pooja User pmishra Sep 26 2013 12:07 AM Hi June, Could you please tell the procedure to open and process this data in ArcGIS also. Thanks Pooja User June Wang Sep 26 2013 09:15 AM Hi Pooja, 1) Regarding your question in step 2 -No. Since you already changed the map projection to the "Moon North Polar Stereographic", and the unit is meter. Even you put 90N and 0 E there, ENVI will interpolate this number as x = 0 m and y = 90m instead of degrees. Also it is kind of tricky. The pole actually corresponds to Lat 90, and Lon in [0, 360] or [-180, 180]. 2) Opening JP2000 map products in ArcGIS is straight forward. Using File->Open or directly dragging the file to the map window will work. ArcGIS will read those map projection parameters automatically. As for the PDS IMG data, ESRI mentioned in the following link that ArcGIS 10.1 supports some PDS 16-bit signed integer data, but still no multiband support. http://resources.arcgis.com/en/help/main/10.1/index.html#//009t0000000q000000. Trent at USGS also had a post about HiRISE PDS DEMs and ArcMap 10.x in the following link. https://isis.astrogeology.usgs.gov/IsisSupport/index.php?topic=3440.0. My suggestion is if your PDS img is not recognized by ArcGIS, try to convert the PDS IMG to an ENVI format, then ArcGIS will read the data in ENVI format. Please let me know if you need more help. Thanks, June
  2. This is the sixth release of CRISM MTRDR and TER data products. In addition, the volumes MROCR_2101 and MROCR_2102 are updated with new TRDR browse and extras data products.
  3. Shashwat, JPL was experiencing network issues this morning. You should be able to access the files now. Jennifer
  4. A new batch of Earth-based Venus radar data has been released on the PDS Geosciences Node web site at http://pds-geoscienc...radar/index.htm. This release contains data collected from May 26 - May 31, 2012. This data set contains Earth-based, polarimetric radar image data for Venus collected from 1988 onwards, using the Arecibo Observatory 12.6-cm (2380 MHz) transmitter in Puerto Rico and receivers at either the Arecibo Observatory or the Green Bank Telescope in West Virginia. The data were provided by Bruce Campbell of the Smithsonian Institution's Center for Earth and Planetary Studies and archived by the PDS Geosciences Node.
  5. This is the fifth release of CRISM MTRDR and TER data products. In addition, the volumes MROCR_2101 and MROCR_2102 are updated with new TRDR browse and extras data products.
  6. This is the fourth release of CRISM MTRDR and TER data products. In addition, the volumes MROCR_2101 and MROCR_2102 are updated with new TRDR browse and extras data products.
  7. A new Earth-based Venus radar dataset has been released on the PDS Geosciences Node web site at http://pds-geosciences.wustl.edu/missions/venus_radar/index.htm. This data set contains Earth-based, polarimetric radar image data for Venus collected from 1988 onwards, using the Arecibo Observatory 12.6-cm (2380 MHz) transmitter in Puerto Rico and receivers at either the Arecibo Observatory or the Green Bank Telescope in West Virginia. The data were provided by Bruce Campbell of the Smithsonian Institution's Center for Earth and Planetary Studies and archived by the PDS Geosciences Node.
  8. The MER Analyst's Notebook has been updated with data from release 49, containing data from sols 4231 to 4320 for the Opportunity rover.
  9. Data from Release 49 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 4231 through 4320 for the Opportunity rover.
  10. Hello again. This image is now available at the Geosciences node and through the ODE search. This image, along with 11 other TRDRs from 2010_168, had previously been omitted from the PDS archive because they did not meet the temperature cutoff criterion for IR data of -145.65C. They are now being released due to your request, since they are very close to the acceptable cutoff temperature. Please let me know if you have any additional questions. Jennifer
  11. We have forwarded your question to the CRISM team, and will post their response as soon as it's available. Jennifer
  12. This is the second release of CRISM MTRDR and TER data products. In addition, the volumes MROCR_2101 and MROCR_2102 are updated with new TRDR browse and extras data products.
  13. A new spherical harmonic model, GRGM1200A, is released from the Goddard Space Flight Center GRAIL team. This release also includes various new gravity map products in standard PDS image format and in GeoTIFF format. Please see errata.txt on the LGRS RDR archive volume for more information.
  14. The LRO Diviner Level-3 GDRs have been revised. They have been updated to use a new modeling component that corrects the slope and slope direction of the terrain. Please see gdrds.cat in the CATALOG directory for more information.
  15. Erika, The CRISM team doesn't have the resources for custom processing, but if you provide the target IDs (or at least the coordinates of the crater) they may be able to estimate when the data will be processed. Jennifer
  16. A new batch of data has been added to the Earth-based S-band Lunar Radar dataset available on the PDS Geosciences Node web site at http://pds-geoscienc...sband/index.htm. This data set contains dual-polarization backscatter maps of the lunar nearside collected at a wavelength of 12.6 cm (S-band), using the 305 m Radio Telescope at Arecibo to transmit and the NRAO's 105 m Robert C. Byrd Green Bank Telescope to receive. The data were provided by Bruce Campbell of the Smithsonian Institution's Center for Earth and Planetary Studies and archived by the PDS Geosciences Node.
  17. The Geosciences Node is pleased to announce the release of two new Mars Reconnaissance Orbiter CRISM data sets, the Targeted Empirical Record (TER) and Map-projected Targeted Reduced Data Record (MTRDR) product suites. TER products are image cubes derived from CRISM hyperspectral targeted observations, post-processed to standardize the illumination and observation geometry and remove atmospheric gas absorptions and instrument artifacts. MTRDR products are the same data map-projected using terrain models of the Martian surface. The first delivery of these data sets covers the data acquisition period 2006-11-10 through 2007-11-01. Future deliveries are planned.
  18. A new degree and order 1500 lunar spherical harmonic gravitational field model, GL1500E, which includes data from the GRAIL primary and extended missions, is released. Please see errata.txt on the LGRS RDR archive volume for more information.
  19. A new batch of data has been added to the Earth-based S-band Lunar Radar dataset available on the PDS Geosciences Node web site at http://pds-geoscienc...sband/index.htm. This data set contains dual-polarization backscatter maps of the lunar nearside collected at a wavelength of 12.6 cm (S-band), using the 305 m Radio Telescope at Arecibo to transmit and the NRAO's 105 m Robert C. Byrd Green Bank Telescope to receive. The data were provided by Bruce Campbell of the Smithsonian Institution's Center for Earth and Planetary Studies and archived by the PDS Geosciences Node.
  20. A new batch of data has been added to the Earth-based S-band Lunar Radar dataset available on the PDS Geosciences Node web site at http://pds-geoscienc...sband/index.htm. This data set contains dual-polarization backscatter maps of the lunar nearside collected at a wavelength of 12.6 cm (S-band), using the 305 m Radio Telescope at Arecibo to transmit and the NRAO's 105 m Robert C. Byrd Green Bank Telescope to receive. The data were provided by Bruce Campbell of the Smithsonian Institution's Center for Earth and Planetary Studies and archived by the PDS Geosciences Node.
  21. For users of MRO CRISM data: Version 7.3.1 of CAT, the CRISM Analysis Toolkit, is now available.
  22. Elyse, We have forwarded your question to the CRISM team and will post their response as soon as it's available. Jennifer
  23. The MER Analyst's Notebook has been updated with data from release 43, containing data from sols 3691 to 3780 for the Opportunity rover.
  24. The derived MRO SHARAD data set, produced by U.S. SHARAD team members, has been revised. Please see errata.txt in the root directory of the volume for more information.
  25. The third release of SHARAD Radargram data processed by the U.S. members of the SHARAD team is now available at the PDS Geosciences Node. It includes data acquired from September 9, 2010 through May 22, 2013 (orbits 19301 through 31965). Also included are some data from earlier orbits that were missing from previous releases (orbits 7899 through 10703). This data set differs from the original SHARAD RDR data set in that a different set of processing parameters were used, the details of which are described in the Radargram Processing Document in the DOCUMENT directory of the archive. Future releases of this data set are planned to occur approximately monthly until the data coverage has caught up with the regular MRO release schedule.
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