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by dortenzio » Thu Dec 03, 2020 7:39 am America/New_York
I experienced the "1 december 2020" issue related to the planetary ephemeris and I followed the instruction to download and install a new de200.eos file (as indicated here) . However, i didnâ€™t find the $OCDATAROOT/modis/static/ directory and, instead, I copied the new de200.eos file in $OCDATAROOT/modis/static. l2gen produced again wrong lat and lon fields.
The OCDATAROOT environment variable is defined by the OCSSW_bash.env file provided with the SeaDAS ocssw code. It is relative to the OCSSWROOT variable, which defines the location of the installed ocssw code. Typically, OCDATAROOT points to <seadas installation directory>/ocssw/share/. Make sure the new de200.eos file is placed in the correct path, or the MODIS geolocation code will not find it (and will use the old version).