Satellite Tracking Toolkit

Required libraries:
qfits-5.2.0: ftp://ftp.eso.org/pub/qfits/qfits-5.2.0.tar.gz
pgplot-5.2.2: http://www.astro.caltech.edu/~tjp/pgplot/
gsl-1.15: ftp://ftp.gnu.org/gnu/gsl/gsl-1.15.tar.gz 
wcslib-2.9

Required environment variables: 
ST_COSPAR: COSPAR number 
ST_DATADIR: path to sattools directory 
ST_TLEDIR: path to TLE directory