palGeoc
palGeoc
- Convert geodetic position to geocentric
- Description:
- Convert geodetic position to geocentric.
- Invocation:
- void palGeoc( double p, double h, double
r, double
z );
- Arguments:
-
-
p = double (Given)
-
latitude (radians)
-
h = double (Given)
-
height above reference spheroid (geodetic, metres)
-
r = double
(Returned)
-
distance from Earth axis (AU)
-
z = double
(Returned)
-
distance from plane of Earth equator (AU)
- Notes:
- Geocentric latitude can be obtained by evaluating atan2(z,r)
- Uses WGS84 reference ellipsoid and calls iauGd2gc