For data users
Questions and comments related to locating, accessing, and using PDS Geo data
180 topics in this forum
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Consider an image downloaded from the Lunar Orbital Data Explorer (http://ode.rsl.wustl.edu/moon/indexProductSearch.aspx). If you filter the LROC-CDRNAC product by the below location then you will get the image with the product ID M1106080949LC. Minimum Lattitude : 29 and Max Lattitude : 30. Minimum Longitude : 334 and Max Longitude : 335. However if you compare the above image with the LROC image in the below link then you will realize that the images do not match and there is a flip along the vertical line. http://quickmap.lroc.asu.edu/?layers=NrBsFYBoAYchGSJQBYF3gXSaUdZY4Ds%2BC2YAHKYWAJzXlGzNlJGIs0BMttVn5HrwaZBoLtSTAuoDhnIBmaF37ykKpSPLx4UAuhA…
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Hello, I had downloaded the LRO diviner RDR products,but filed to open these by ENVI. what tools should I use to mosaic the data. thanks.
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- uncertainty
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Good morning I was looknig at the gravitational data provided in JGMRO_110C_SHA.TAB and I could not understand how to use the uncertainties provided. I see that for example the third column of the first line provides a value of 1.9E-05 and the description of this number is "For a gravity field model the uncertainty in the gravitational constant GM in kilometers cubed per seconds squared for the planet" I wanted to generate a "perturbed" gravity field based on this uncertainty. How would you recommend to do it? Shall I assume a uniform distribution and compute the Real_GM = Nominal_GM + uniform(-1,1)*uncertainty Or do you recomend using a gaussian …
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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!
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Hi everybody, Can anybody please tell me where I can find global Mars data on longtitude, lattitude and elevation. Just a txt file, not all sorts of mumbo jumbo interactive maps and such. I have been looking for it but this site is the pits and other sites don't help you out any further either. It would be a great help. Thanks in advance, Roel Knol, Netherlands.
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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 ha…
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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 m…
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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.
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I wonder if anyone would have a good book recommendation for getting stuck into ENVI+IDL coding with a focus on this type of data? Has anyone self taught with a particularly useful book?
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Hi, I'm having trouble downloading altitude data. Entering lat long, query count and preparing files all works but right at the end of the download I get a network error message. I asked someone else on another computer to try and he gets the same problem. Any help much appreciated. Phil
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Hi everybody, I'm currently experiencing problems with ISIS3 probably related to the recent change of the PDS internet address. In particular, I'm using CTX image pairs to create DEM with Socet Set. During the preparation of images for use within Socet Set workstation (step 1,2,3,4 of the Image Stereo Processing Workflow in the Socet Set user manual), when I run the bash file within the ISIS3 Workstation that downloads images and extracts MOLA data, I receive an error message stating that it is unable to resolve host address pds-imaging.jpl.nasa and that input image does not exist. I've double checked the script and there are no typos. I've tri…
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Solar spectrum for M3 Global mode wavelength
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Hello, Currently I'm working on a data analysis project using images from the Mars Opportunity Rover Pancam. I'm having trouble reading the .img files. I know the ascii detachable string contains all the information necessary. I'm trying to write a script to extract intensity of each pixel and place it into an array. Right now I'm thinking LINES is height, LINE_SAMPLES is width and SAMPLE_BITS is bit per pixel. The checksum for this specific image is 7231232, but if I use the dimensions given in the lines, line_samples and sample_bits I get 65536 (for 64 x 64 x 16). Here is the data from the header. Am I interpreting the dimensions wrong? /* IMAGE DATA ELEMEN…
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[From Frank Lemoine, GSFC, in response to a user's request.] The radio science data for at least the Mars-orbiting spacecraft and Venus as well (meaning Magellan) and MESSENGER (Mercury) are at the Geosciences Node of the Planetary Data System. For example for MRO the direct link is the following URL. http://pds-geosciences.wustl.edu/mro/mro-m-rss-1-magr-v1/mrors_0xxx/ Or by navigating from the higher level directory. http://pds-geosciences.wustl.edu/ The MRO archive has directories labelled "tnf" -- Raw TRK2-34 data and "odf" -- Orbit Data File, TRK2-18. The TRK2-18 is easier to handle -- the TRK2-34 takes a lot more work to decode. I'm uncerta…
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Hi, I have been looking for a CRISM image, HRL000195B9_07_IF182L_TRR3. This image is listed and displayed on the John Hopkins CRISM map website, but not available in the archive. The ODE archive does have the HRL000195B9_07_IF182S_TRR3 VNIR image, but not the IR image. There is no indication on the Johns Hopkins site that it has been superseded by another image or removed for a particular reason. Any help appreciated. Thanks in advance!
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I hope this is the appropriate subforum to ask this question. The LRO pages at NASA led me to http://ode.rsl.wustl.edu/moon/index.aspx to get LRO imagery data. I'm looking to use images of craters from the LRO data there, with labels, at Wikipedia to fix some currently incorrect imagery and descriptions. I intend to get the zoom level and framing I want and then do screengrabs with Snipping Tool. My issue is that the only copyright information I've been able to locate on the wustl.edu site is a link that says most imagery emanating from the JPL website is fair to use. Does data from here follow the same - am I free to repost screencaps to Wikipedia? And is ther…
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Hi there, I am working on my Astronomy Bachelor thesis and for that I need to analyse the Mars ground temperatures during at least one Mars year. My problems is that I can't seem to find the relevant data to process while I am sure it must be available in the available data sets. And I can assure: this was not due to lack of searching; can anyone help me please? I think I am looking for the wrong thing. How did others manage to extract (ground) temperatures? Any ideas are welcome. Big thanks in advance, Regards, Roel Knol, Holland.
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To whom it may concern: I would like to ask if, by any chance, I could request for MTRDR and TER data products that cover an impact crater in Tyrrhena Terra. I'm studying it for my thesis. I would like to know if this request is possible or I should wait until that area is processed by the CRISM team. Thank you very much! Kind Regards, Erika
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Hello, This is largely an IDL question concerning the new release of 2014 CRISM summary parameters in the CAT v7.3.1, so I'm not sure if it's appropriate here. I am working with: CAT_ENVI/save_add/CAT_Programs/Supplementals/select_summary_parameters.pro CAT_ENVI/save_add/CAT_Programs/Event_Handlers/mro_crism_summary_params_2014_event.pro Is there a way to bypass the control widget in 'select_summary_params.pro' and simply generate the default selections (basic products) without waiting for "OK" to be pressed? I want to link several CAT pre-processing steps together and don't require the widgets, but I am finding it difficult to manage widgets and …
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Odyssey GRS HEND and Neutron Spectrometer raw and derived data for Release 54 are now online at http://pds-geosciences.wustl.edu/missions/odyssey/grs.html. This release includes data acquired between April 1 and June 30, 2015.
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A user emailed this question to the Geosciences Node: "Dear LOLA Team, I was not sure but I probably found a large mount of data gap when processing LOLA-GDR data. The attached file [not included here] with resolution of 1024pixels/degree is a good representative for lacking data between adjacent orbital LOLA data. This part of a projected map is established through a combination of a set of LOLA-GRD data using GMT software. Easily seen from this map, some area can display more detailed information than others lacking altimeter data in adjacent orbits which is relative flat. If you size it up, you can see it more clearly. Is it necessary that if i need to build higher r…
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Hello, When using the CIRRUS corrections within CRISM CAT I obtain an error - part of which is "no good data found". I know that CIRRUS corrections are generally unnecessary with TRR3 data, but the extra pre-processing really helps further on in my analysis. The destriping step is performed correctly, and I obtain an output image, so data exists. I have read the help file and taken a look at the .pro files for these corrections so that I can see what is going on, and varied my input parameters (spatial/spectral kernel size - yet always leaving spectral smoothing at 0) but to no avail. As I understand, in order to flag a spike neighboring spectral bands must both be hig…
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Hi, I installed CAT Tool in Envi 4.8 (Windows OS). But when doing ATP correction, it shows an error "VS CDR file not found. Aborted ". How to give path to read the aux files?? Please help. Thanks in advance
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Hi, first this service is very impressive. I downloaded 3 different kmz files from the LFCE pages. They all opened fine. They just loaded their mapping data onto the Earth. I don't know if maybe somehow this could have to do with my computer being a Linux system. I can't think of another explanation.
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This fortran code will convert the LP ODF data on PDS node to ASCII records so that it would be much easier to convert it to another data format. This program is designed to run on a PC with window OS and Compaq Visual Fortran (6.6 or heigher virsion (a lower vision donnot have data type integer*8), you don't have to change it too much to transfer it to another platform or compile it with other compliers. If you have any questions, please donnot hesitate to contact me at sunyuwoody@126.com ---------------------- the following is the original code ----------------------------- C Program ReadODF Program ReadODF CCCCCCCCCCCCCCCCCCCC…
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