Using the Reach RS+ can I assume ellipsoid height in the manual base setup and correct in post processing? Or is there a better alternative?
I would like to setup on a know monument (benchmark) and work in RTK with a fixed position but the only known information is the latitude, longitude, and orthometric height. I can calculate the ellipsoid based on geoid models but without knowing the specific geoid model used in establishing the monument I will be off by 0.04-0.21 feet. https://geodesy.noaa.gov/GEOID/models.shtml
Can I perform a work flow like this…?
- Assumed ellipsoid height of say 500m for manual base setup.
- Collect survey points from the rover and points from the base over the monument.
- Export project to csv and calculate the elevation difference between the known monument elevation and the surveyed monument elevation.
- Apply the difference to all of the surveyed points.