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Ellipsoid


#1

Could you please confirm what ellipsoid the Alpha RTK uses.


#2

WGS84 ellipsoid used as default.


#3

Thank you for confirming.


#4

The geoid model, please? Thanks,


#5

Not sure what is the geoid model you need exactly.

The altitude in GGA is Mean Sea Level Altitude.

(WGS84 altitude) = (Mean Sea Level Altitude) + (Geodal Separation from GGA)

My guess is that if you need to transform to other geoid model, you can first convert WGS84 longitude / latitude / altitude to ECEF(x,y,z) then make other transformation?