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Does Phantom 4 Pro use WGS84, or EGM96 for elevation exif data

jherbranson

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Hi. I was wondering if anyone knew if the GPS EXIF data found in the Phantom 4 Pro images was based on either WGS 84 (ellipsoid) or EGM96 (geoid) to determine altitude. The reason I am asking is that I often find that my GCPs are off by about 30m compared to the EXIF data. I am measuring GCPs using GPS WGS84 ellipsoid (RTK). I believe the difference between the two datums are about 30m here in North California. This is my first post, it's a pleasure to be a part of the group!
 

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