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June Wang

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Everything posted by June Wang

  1. June Wang
    Hi Lex, Here is the post. If you still have problem, you can send me a sample image of both data sets. I haven't work with Europa or Io data before, but I can take a look. Thanks, June
  2. June Wang
    February 3, 2021 Release of PDS4 migrated Lunar Prospector data archives at the Geosciences Node are loaded into ODE. This includes calibrated GRS and NS data, GRS elemental abundance tables, and RSS spherical harmonic gravity models archived in the below four bundles. lp_grsns_calibrated lp_grs_derived lp_rs_goddard_gravity_derived lp_rs_jpl_gravity_derived Please see below links for more information. https://pds-geosciences.wustl.edu/missions/lunarp/index.htm ODE Moon Holdings - https://ode.rsl.wustl.edu/odeholdings/Moon_holdings.html
  3. June Wang
    January 21st, 2021 - New Extended Mission 7 MEX MARSIS EDR and Subsurface RDR Data loaded into ODE. - Updated MEX MARSIS EDR data products released through December 31st, 2019 (Orbit 1- 20228) - Updated MEX MARSIS Subsurface RDR data products released through December 29th, 2019 (Orbit 1885-20221) See https://ode.rsl.wustl.edu/odeholdings/Mars_holdings.html for a full list of data holdings in ODE.
  4. June Wang
    January 8, 2021 – MRO HiRISE Updates - MRO HiRISE EDR, RDR, DTM and Anaglyph data products released through December 4, 2020 (Orbit 67299) See https://ode.rsl.wustl.edu/odeholdings/Mars_holdings.html
  5. June Wang
    January 7th, 2021 - Mars Odyssey Release 74 and Re-release of 50 &51 Data Updates Loaded NS and HEND raw and derived data into ODE through June 30th, 2020 Updated THEMIS standard data products (IREDR, IRRDR, IRBTR, VISEDR, VISRDR and VISABR data) from February 19th, 2002 to May 31st, 2020 Updated THEMIS geometry data products (IRGEO2, IRPBT2, VGEO2, and VISALB data) from September 28th, 2013 to May 31st, 2020 Updated re-release volumes for THEMIS VIS calibrated and derived products from release 50 and 51 See more information at https://ode.rsl.wustl.edu/odeholdings/Mars_holdings.html and http://static.mars.asu.edu/pds/errata.txt
  6. June Wang
    December 18th, 2020 SHARAD RDRs from SHARAD Operations for MRO Release 55 are now loaded into ODE, with data coverage from March 1, 2020 to May 9, 2020. There are no SHARAD data from February 9-29, 2020 due to maintenance activity on MRO.
  7. June Wang
    December 15th, 2020 - LRO Release 44 has been loaded into ODE. Updated LAMP EDR and RDR products from July 6th, 2009 to September 14th, 2020 Updated LEND EDR_SCI, EDR_HK, RDR_RSCI, and RDR_CHK products from June 18th, 2009 to September 14th, 2020 Updated LEND RDR_DLD and RDR_DLX products from June 27th, 2009 to June 14th, 2020 Updated Diviner EDR and RDR products from July 5th, 2009 to September 16th, 2020 Updated LROC EDR, CDR and RDR products from June 30th, 2009 to September 15th, 2020 Loaded Mini-RF new Version 3 Bistatic radar data products (EDR, RDR, and DDR) from January 28th, 2019 to March 31st, 2020 Updated LOLA EDR products from June 18th, 2009 to October 15th, 2020 Updated LOLA RDR products from July 13th, 2009 to October 15th, 2020 Updated LOLA RDR query tool database from July 13th, 2009 to October 15th, 2020 In Progress Diviner RDR query tool database from July 5th, 2009 to September 16th, 2020 Please see ODE Lunar Holdings - https://ode.rsl.wustl.edu/odeholdings/Moon_holdings.html
  8. June Wang
    December 3rd, 2020 - MRO Release 55 Loaded into ODE. - Updated MRO CRISM EDR and CDR products from September 27th, 2006 to August 9th, 2020 - Updated MRO CRISM DDR products from September 27th, 2006 to August 8th, 2020 - Updated MRO CRISM TRDR products from September 27th, 2006 to August 8th, 2020 - Updated MRO raw gravity data products released through November 10th, 2020 - Updated MRO SHARAD EDR products from ASI through May 9th, 2020 (orbits through 64623) - Updated SHARAD Radargram data products released through May 7th, 2020 (orbits through 64597) - Updated MRO MCS EDR, RDR and DDR products from September 15th, 2006 to July 31st, 2020 (orbits through 65689) - Updated MRO CTX EDR products from August 30th, 2006 to May 31st, 2020 - Updated MRO HiRISE EDR, RDR, DTM and anaglyph products released through November 3rd, 2020 (Orbit through 66899) Please see ODE Mars Holdings – https://ode.rsl.wustl.edu/odeholdings/Mars_holdings.html Note: SHARAD RDRs from ASI have not been delivered yet.
  9. June Wang
    November 25th, 2020 Release 15 of MRO CRISM MTRDR (Map-projected Targeted Reduced Data Record), TER (Targeted Empirical Record), and TRDR (Targeted Reduced Data Record) browse and extras data has been loaded into ODE. This release fills in data from August 9 through November 8, 2008. See https://ode.rsl.wustl.edu/odeholdings/Mars_holdings.html for more information.
  10. June Wang
    November 24th, 2020 - New MEX VMC Data Loaded into ODE - Loaded MEX new VMC EDR & RDR data products released with coverage through June 30th, 2020 (Orbit 20854). See https://ode.rsl.wustl.edu/odeholdings/Mars_holdings.html
  11. June Wang
    November 13, 2020 – MRO HiRISE Updates - MRO HiRISE EDR, RDR, DTM and Anaglyph data products released through October 3, 2020 (Orbit 66499) See https://ode.rsl.wustl.edu/odeholdings/Mars_holdings.html
  12. June Wang
    October 19th, 2020 - SHARAD EDR and RDR data from ASI for MRO Release 54 loaded into ODE, also loaded missing SHARAD RDRs from previous MRO Release 24. - Loaded delayed SHARAD EDRs and RDRs from release 54 (Data coverage: November 10, 2019, through February 8, 2020) - Loaded SHARAD RDR (ASI) missing data from release 24 (Data coverage: June 3 through August 3, 2012)
  13. June Wang
    No-data area will not change the line and sample value of each pixel in the data. So the data will still start from (1,1) for the top-left corner. All you need is just ignore those no-data pixels in your calculation without changing the line and sample values.
  14. June Wang
    One more finding is if using the function of “y = (1 - L0 - Line) * Scale” in line 128 of ‘DSMAP.CAT’ file, y value will always be negative with current label value input, which doesn’t match with the real y value in the data. It looks to me this equation could be changed to “y = ( L0 – Line-1) * Scale”. You can try LINE_PROJECTION_OFFSET = 4476. This value is just my guess, may not be correct. I have contacted with the data provider. I will post the final solution here when I hear anything back from the data provider’s.
  15. June Wang
    Hi Ayushman, Two things here. In your code, you looped around all the pixels. Please don’t include the nodata area in your calculation. The LINE_PROJECTION_OFFSET value in the label doesn’t match with the value of CENTER_LATITUDE. Need to check with the data provider to see what the value used in their processing pipelines. Thanks, June
  16. June Wang
    October 9, 2020 – MRO HiRISE Updates - MRO HiRISE EDR, RDR, DTM and Anaglyph data products released through September 1, 2020 (Orbit 66099) See https://ode.rsl.wustl.edu/odeholdings/Mars_holdings.html
  17. June Wang
    Hi Ayushman, Attached is the screen capture of the LROC RDR (orange color, NAC_ROI_VIKRAM__LOC_P708S0237_5M.TIF) overlain on a WAC mosaic near the South Pole area together with its spatial reference information. The feature matches well. If everything is correct in the book, it looks to me equation 20-15 is a better fit for this case. Have you checked other parameters or steps in your calculation? If you can send me your code and your original value input for the calculation, I can take a further look. Thanks, June
  18. June Wang
    Hi Ayushman, Question 1-> It looks to me C = 2* ARCTAN[P/(2*Rp)] is correct, when compared this with the equation (21-15) in book page 159 of the book “Snyder, J. P. (1987). Map Projections: A Working Manual. U.S. Geological Survey Professional Paper 1395. Washington, DC: United States Government Printing Office.” Please let me know if this is not correct to your test. Question 2-> Please use the value in the attached label. The sentence written in the DSMAP.CAT is more like a general case. Thanks, June
  19. June Wang
    Hi Ayushman, To get the lat&lon for each pixel of the LROC map projected RDRs, please read the ‘DSMAP.CAT’ at https://pds.lroc.asu.edu/data/LRO-L-LROC-5-RDR-V1.0/LROLRC_2001/CATALOG/, which gives the equations and steps on how to convert image array coordinates (Sample, Line) to map coordinates (x, y), and then from map coordinates (x, y) to planetocentric coordinates (Lat, Lon) for different kind of projections. All the parameters needed for the calculation could be find in the attached label of this product. Please let me know if you need more information. Thanks, June
  20. June Wang
    Hi Ayushman, Sorry, these are LROC NAC CDR data products. They are not map projected, but you can still use Arcmap and Gdal to read the data. I confused them with the LROC RDR data in your other post at https://geoweb.rsl.wustl.edu/community/index.php?/topic/2804-details-needed-for-lroc-nac-mosaic-img-file/&tab=comments#comment-4594. I will keep a post there on how to get the lat&lon for each pixel of the LROC map projected RDRs. In the index table under INDEX directory of the LROC CDR volumes, e.g., https://pds.lroc.asu.edu/data/LRO-L-LROC-3-CDR-V1.0/LROLRC_10**/INDEX/, you will find the lat&lon coordinates of the center point and 4 corner points. If you want to get the lat&lon for each pixel in the image, you will probably need to try the NAIF SPICE tools https://naif.jpl.nasa.gov/naif/toolkit.html or USGS ISIS https://isis.astrogeology.usgs.gov/index.html to see if they have function for this. Thanks, June
  21. June Wang
    October 6th, 2020 - New MEX OMEGA EDR Data Loaded into ODE - Updated MEX OMEGA EDR data products for extended mission 7 released through December 22nd, 2019 (Orbit 20196). See https://ode.rsl.wustl.edu/odeholdings/Mars_holdings.html
  22. June Wang
    Hi Ayushman, You can use gdal_translate command from gdal tool to translate the img data into a Geotiff, and use this Geotiff in any GIS tools. Arcmap can read the PDS IMG data directly with all its spatial reference information. The version I used here is an old one 10.2.2. Higher version should also work. June
  23. June Wang
    Hi Ayushman, This LROC IMG data has an attached label. You can view the label content with UltraEdit or a Nodepad tool. From the link you gave above, you can also download the Geotiff image from Extra Downloads box. When adding this Geotiff in Arcmap and moving you mouse on the image, you can see the coordinates of each pixel. Because this product is in Polar Stereographic projection, the default coordinates display is in meters. You can change the map setting to view the coordinates in degrees. Since this data including NoData, the red part as shown below, the westernmost longitude is not the left side of the mosaic and the maximum latitude doesn't correspond to the top of mosaic. Please let me know if you need more help. Thanks, June
  24. June Wang
    October 2nd, 2020 - Mars Odyssey Release 73 Data Updates Loaded NS and HEND raw and derived data into ODE through April 9th, 2020 Updated THEMIS standard data products (IREDR, IRRDR, IRBTR, VISEDR, VISRDR and VISABR data) from February 19th, 2002 to March 2nd, 2020 Updated THEMIS geometry data products (IRGEO2, IRPBT2, VGEO2, and VISALB data) from September 28th, 2013 to March 2nd, 2020 See https://ode.rsl.wustl.edu/odeholdings/Mars_holdings.html FYI – THEMIS team have some important electrical work that needs to be done on their building this weekend. Most likely all of their servers will be unavailable from Friday, Oct 2 (6pm AZ) through Monday, Oct 5 (6am AZ).
  25. June Wang
    September 28th, 2020 Updated LROC RDR data products with version 0057 for this release. Updated Diviner RDR query tool database from July 5th, 2009 to June 16th, 2020.
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