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The following non-standard features are supported when reading spectral
axes from a FitsChan:
- Conversion of ``-WAV'', ``-FRQ'' and ``-VEL'' algorithm codes
(specified in early drafts of paper III) to the corresponding
``-X2P'' form.
- Conversion of ``RESTFREQ'' to ``RESTFRQ''
Next: Paper IV - Coordinate Distortions
Up: Paper III - Spectral Coordinates
Previous: Requirements for a Successful Write Operation
AST A Library for Handling World Coordinate Systems in Astronomy
Starlink User Note 210
R.F. Warren-Smith & D.S. Berry
24th May 2011
E-mail:ussc@star.rl.ac.uk
Copyright (C) 2009 Science \& Technology Facilities Council