bl2gk - Transformation: Geodaetic ellipsidic coordinaten to Gauß-Krüger-coordinaten (german convention)
eph2xyz - Function to calculate satellite coordinates (xyz) from the ephemerietes of the satellite.
gk2bl - Transformation: Gauß-Krüger-coordinates (convention of Germany) to geodaetic ellipsoidic coordinates
gmf - Calculating the "global mapping function" (GMF).
kepler - Calculate the excentric anomalie
nutwinkel - Calculates the parameter of the nutation.
praezwinkel - Calculates the parameter of the Precession.
tropKor_sm - Calculates the tropospheric adjustment with assumed default values (Saastamoinen).
xyz2blh - Transformation: Cartesian to ellipsoidic coordinates.