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Changes Introduced in V4.3

The following describes the most significant changes which occurred in the AST library between versions V4.2 and V4.3:

  1. The AST_GETFITSS function now strips trailing white space from the returned string, if the original string contains 8 or fewer characters

  2. The SpecFrame class has a new attribute called SourceSys that specified whether the SourceVel attribute (which specifies the rest frame of the source) should be accessed as an apparent radial velocity or a redshift. Note, any existing software that assumes that SourceVel always represents a velocity in km/s should be changed to allow for the possibility of SourceVel representing a redshift value.



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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
24th May 2011
E-mail:ussc@star.rl.ac.uk

Copyright (C) 2009 Science \& Technology Facilities Council