VOTable session @ Interop.Moscow

[Roy Williams]

Is Sir Isaac Newton risen from his grave and come to the Moscow  
meeting? Sure looks like he is giving Einstein the boot! We have been  
told for years now by Arnold and others, indeed since 1905, that  
space and time are linked and should not be separated. Therefore I  
prefer the Option 1, where space and time frames are linked.

My algorithm for reading the VOTable has two parts, first a list of  
spacetime frames that are blessed by the VOEvent document [1], then  
the algorithm [2] for extracting which table columns have Time, RA,  
Dec from a point in the frame.

I want to do a SINGLE STRING COMPARISON of space-time frame from the  
VOTable with space-time frames that I know. I have no interest in  
picking apart and reassembling the space piece and the time piece.  
Why have space and time been pulled apart like this?

Roy


[1] Recognizable coordinate frames (for me) are
  TT-ICRS-TOPO
  UTC-ICRS-TOPO
  TT-FK5-TOPO
  UTC-FK5-TOPO
  TT-ICRS-GEO
  UTC-ICRS-GEO
  TT-FK5-GEO
  UTC-FK5-GEO
  TDB-ICRS-BARY
  TDB-FK5-BARY


[2] How to read Option 1 (Einsteinian) representation:
Find a GROUP with utype equal to "stc:AstroCoords.Coord, and Find  
it's ID
If I recognize this (see above), then I can understand the coords,  
and so:
	Find a Field with utype set to  
stc:AstroCoords.Time.TimeInstant.ISOTime (this is UTC)
         Find a Field with utype set to  
stc:AstroCoords.Position2D.Value2.C2 (this is RA)
         Find a Field with utype set to  
stc:AstroCoords.Position2D.Value2.C2 (this is Dec)




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