SxAP and Frames

[Arnold Rots]

Doug,

I recommend the STC document; it has lots of useful information.
Table 3 contains a standard list of spatial reference frames; in the
"frames" context that's the relevant one.
Table 2 is a list of accepted time scales.
Table 1 contains a list of standard reference positions.

Cheers,

  - 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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