Dieter Egger @ FESG TUM
 
Observer's position
You can define an observer's position by entering geocentric coordinates or ellipsoidal coordinates.
The conversion is determined by two values which represent the reference ellipsoid that best matches the Earth's shape. You may change either the Earth's equatorial radius or its reciprocal oblateness (flattening) or both.
The Reset button will reinstall the default values of the Earth's ellipsoid.
Leave the cursor in the input text field. The conversion is done by hitting Return or pressing a button.

 

Dieter Egger,  last update 2002-02-26