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Thank you very much for your reply! How do I correspond the reflectance read out to a specific longitude, latitude, and Solar-viewing geometry? Both are 450*270 matrices, while a certain band in EV_1KM_RefSB is 2023*1350. I want to obtain the longitude, latitude, and Solar-viewing geometry correspon...

I want to use MODIS L1B data to verify the cloud detection algorithm. I downloaded the MOD021KM data, and I want to extract the reflectance of 1380nm channel in EV_1KM_RefSB. I know that the value read from the table multiplied by reflectance_scales is the reflectance value I finally need. But I am ...