some remarks on VOEvent

[Elizabeth Auden]

>   I would think a VOEvent could take multiple Observations.  For instance, 
> one day one has images and spectra and then three days later one has more 
> images and spectra.   One notices significant changes in both so you send out 
> a VOEvent. Are there 4 Observations or 1?  And what if you include supporting 
> Observations by a colleague at another observatory?

Swift provides a good example of this - when MSSL has round-the-clock 
gamma-ray burst duty, part of the responsibilities include coordinating 
other instruments for multi-wavelength observations of the afterglow.

Elizabeth