Comments on Image Data Model

[Arnold Rots]

I just noticed Doug Tody's presentation in the last DM session (which
ran in parallel with DCP) on an image DM.

He tries to relate FITS WCS concepts to IVOA standard concepts, but I
find the table that he presents totally unacceptable.
The IVOA has a direct equivalent of FITS WCS: STC. Therefore, this
list of associations needs to be cast in terms of STC concepts.

I'll be happy to provide that list - if anyone cares.

  - Arnold

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Arnold H. Rots                                Chandra X-ray Science Center
Smithsonian Astrophysical Observatory                tel:  +1 617 496 7701
60 Garden Street, MS 67                              fax:  +1 617 495 7356
Cambridge, MA 02138                             arots at head.cfa.harvard.edu
USA                                     http://hea-www.harvard.edu/~arots/
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