Tim,
> 1) GAIA does not follow the FITS-WCS paper III convention by default (goes
> to the CARLIN thing). GAIA can, and probably should, follow FITS WCS by
> default, or at least give an astrometry warning when reading a fits file
> and deciding to do something different. The CARLIN mode rectangular grid
> should be plotted over the entire map still, with dec increasing to the 90
> line then decrerasing again after the 90 line, with a 180 degree flip in
> RA.
How would you expect the 180 degree flip in RA to be represented by a set
of annotated axes? I can't picture it myself.
David
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