Google Earth State Plane Coordinate and Geoid Plug-ins

Very helpful when creating missions from no information and also creating rough GCP’s. Install these to Google Earth. You right-click and refresh to update the point after getting it right in the middle of the object.

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http://www.metzgerwillard.us/EarthSurvey.html

SPCS83 Example

Ortho to Geoid/Ellipsoid Heights

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