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Nathan Weinstein

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Everything posted by Nathan Weinstein

  1. Hi, I’m using code that quarry data from the PDS archive, and I wonder if there is a way to utilize Aspera in batch/bash coding in a cluster with or without the Aspera program installed to increase the downloading speed. Thanks Nathan
  2. Great! Thank you so much! Cheers, Nathan
  3. Hello, How to correctly open and overlay map-projected HiRISE and CRISM products? I know that they both should have the same projection (with different pixel size/map scale/spatial resolution). But, unexpectedly they opened from the first pixel's location of the first opened raster layer and not accordingly and independently by the map coordinates of each rasters. See attached. Thanks, Nathan
  4. I want to calculate the summary product sensitivity matrices of some new analog laboratory material spectrum and represent by a representative browse product RGB as Viviano et. al. (2014) did (attached figure), to use it to search similar RGB corresponding response of CRISM, which also leads me to this question I posted. Thank you, Nathan
  5. Hi Ray, In the MTRDR pipeline, the BR (8-bit) derived from the SR that is 32-bit. My question is, how it was converted/processed? Thank you, Nathan
  6. Hello, What do I need to define a new mineral Type Locality? How do I search for new minerals that have not yet been defined with a type locality? I thought of calculating the RGB color of a target mineral lab reference spectrum, with related summary products and then looking for pixels in the related Browse Product scene that have a similar color. Is it a good way? If yes, how do I do the band math on a spectrum instead of on an image? And is there a way to do this with the codes from the directory ‘CAT_ENVI\save_add\CAT_programs\Additions\SummaryParams2014’ ? Thanks, Nathan
  7. Hello, How exactly is each summary product converted to an 8-bit RGB channel component of the browsing product? Is there a code procedure in CAT to use with IDL? Are the values in the summary product at a normalized intensity from 0 to 1? If so then is it only left to convert the values to a range [0, 255]? Thanks, Nathan
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