NAME

precrot - calculates rotation between ICRS and observed

SYNOPSIS

precrot [mode=observed] [site=] [iso=yyyy-mm-ddTHH:MM:SSZ] [verbose] [debug]

DESCRIPTION

This program converts coordinate strings arriving in stdin and determines the rotation angle in degrees between the observed and the IRCS coordinate. It also prints out the scale expansion factor for 1 degree.

The baseline is +/- 0.5 degree off the input location.

OPTIONS

iso= changes the observation epoch.

site= sets the observing site.

mode= changes the final output mode to either astrometric, geocentric, topocentric, or icrs.

verbose - prints out ha,alt,az too.


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