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geolocation subset from MOD03

Posted: Tue Jul 08, 2025 9:50 am America/New_York
by LP DAAC - dgolon
Posting on behalf of a user:

I am using the MOD14/MYD14 Level-2 active fire products. I can only find the latitude/longitude for fire pixels in the hdf file. However, I also care about the location of 'no-fire' pixels.
While MOD03/MYD03 files provide this, their large size is impractical for my use case.

Are there:

Tools to extract only the geolocation subset from MOD03?

Python libraries to calculate coordinates from MODIS metadata?

Thanks for any tips!

Re: geolocation subset from MOD03

Posted: Tue Jul 08, 2025 11:05 am America/New_York
by LAADS_UserServices_M
If the need is only geolocation information for each granule, they can use LAADS Terra and Aqua geoMeta, extracted from MxD03 and stored in text file format, available at:
https://ladsweb.modaps.eosdis.nasa.gov/archive/geoMeta/61/
Otherwise, the simplest and easiest way is to use LAADS post-processing tool available through FindData interface (final step in ordering process), for example as:
https://ladsweb.modaps.eosdis.nasa.gov/search/order/1/MOD03--61
For more information consult:
https://ladsweb.modaps.eosdis.nasa.gov/learn/how-to-use-laads-daac-post-processing-tools/