I found the geolocation files from OB and from LAADs that have the same timestamp, usually have slight difference since their 4 decimals. It seems this difference is within the allowed accuracy of 0.1 pixel, after I read the ATBD of geo-location.
But I'm not sure I understand it correctly, and how large the impact of this difference from two source of MODIS geolocation files will be for other MODIS products.
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Sorry for the delay in response. Can you please explain your question "... impact of this difference from two source of MODIS geolocation files will be for other MODIS products.", which other MODIS products, from LAADS or from OB DAAC?
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Thank you for replying my post. Sorry for the confusion. I mean other MODIS products in OB like L1A whose locations rely on these geolocation files.
For example, if I use geofiles from OB to select region of my interest in L1A from OB, can I get the same ranges of scan numbers and frame number when I use geofiles and L1As from LAADS?
Well, as in this case I suppose geofiles from LAADs be the reference for the comparison, maybe my dear folks from OB could have an answer to me.
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