NAME

fitstorms - calculates RMS pointing from fits files

SYNOPSIS

fitstorms [nomatch] fits_files .....

DESCRIPTION

fitstorms calculates the difference between the CRVAL1, CRVAL2 and the RA, Dec in the header from FITs files that are WCS corrected; i.e. nmatch > 0. The data are put into stdout.

This script requires the following keywords from every file:

KeywordDescriptionunit
CRVAL1 RA of center ICRSdecimal degrees
CRVAL2 DEC of center ICRSdecimal degrees
RA observed RA from encoders for HH:MM:SS
DEC observed Dec from encoders for DD:MM:SS
EQUINOX Equinox of raw data decimal years

It is assumed that: 

CTYPE1  = 'RA---TAN'
CTYPE2  = 'DEC--TAN'
WCSDIM  =                    2
OPTIONS
nomatch - generates run.dat even if nmatch=0. Use this to do a NULL test of the pointing.
Pointing index