VOEvent 1.1 new draft with STC elaboration

[Arnold Rots]

Correction:

Assuming that times will typically be corrected for pathlength delay
(please speak up if that is not the plan), times will be Heliocentric,
while some of the solar spatial systems are intrinsically
heliocentric, others topocentric.
I suggest the following standard systems:

  UTC-HPC-TOPO
	Describes raw observational data
  UTC-HELIO-HPC-TOPO
	For time-corrected observational data
  UTC-HGC-HELIO
	Suitable for reporting solar events
The following seem useful:
  UTC-HELIO-HEEQ-TOPO
  UTC-HELIO-HCC-TOPO

Are there any among these that you don't expect to be used at all?
Are there any among these that you don't expect to be used in VOEvent?
Are there others that you expect to be used?

Thanks,

  - Arnold

Arnold Rots wrote:
> Silvia and I had a chat, this evening, and here is the suggestion for
> the list of solar-related coordinate systems in STC (F&H: Fraenz &
> Harper, T: Thompson):
> 
>   MAG	 Geomagnetic (F&H)
>   GSE	 Geocentric Solar Ecliptic (F&H)
>   GSM	 Geocentric Solar Magnetic (F&H)
>   SM	 Solar Magnetic (F&H)
>   HGC	 Heliographic-Carrington (T)
>   HEEQ	 Heliocentric Earth Equatorial (F&H)
>   HRTN	 Heliocentric Radial-Tangential-Normal (F&H)
>   HPC	 Helioprojective Cartesian (T)
>   HCC	 Heliocentric Cartesian (T)
>   HGI	 Heliographic Inertial (F&H)
> 
> For VOEvent I suggest that we add as standard systems:
> 
>     UTC-HPC-TOPO
>     UTC-HGC-TOPO
> 
>   - Arnold
> 
> 
--------------------------------------------------------------------------
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/
--------------------------------------------------------------------------