Standards Of Fundamental Astronomy – Home

Standards Of Fundamental Astronomy – Home
The SOFA Collection consists of two libraries of routines, one coded in Fortran 77 the other in ANSI C. There is a suite of vector/matrix routines and various utilities that underpin the astronomy algorithms, which include routines for the following:Calendars

Time Scales

Earth rotation and sidereal time

Ephemerides (medium precision)

Geocentric/geodetic transformations

Precession, nutation, polar motion

Star space motion

Star catalogue conversion