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Testing for a spectral coordinate system is basically the same as testing
for a celestial coordinate system (see the previous section). The one
difference is that you use the
AST_ISASPECFRAME routine
in place of the
AST_ISASKYFRAME routine.
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Up: How To...
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AST A Library for Handling World Coordinate Systems in Astronomy
Starlink User Note 210
R.F. Warren-Smith & D.S. Berry
30th April 2003
E-mail:ussc@star.rl.ac.uk
Copyright (C) 2003 Central Laboratory of the Research Councils