>
>> 4) time series via SDM (<What>)
> I think this can be done, if we all agree to use the same time scale
> -- otherwise it will be difficult to control which time standards
> are allowed, and parser will become difficult. Suggest Barycentric
> Modified Julian Day for this.
Agreed that the simplicity of a single time model is appealing, but there will be many applications for which the marshaling into such a framework either is conceptually awkward (e.g. pulsar timing) or is limiting. Indeed any short episodic event that needs to be tracked over a significant time in the Earth's motion around the Sun would be more naturally described in heliocentric terms.
That said, selling the timeseries addition in 2.0 as a beta representation is reasonable way to gain acceptance. (Afterall, MJD should satisfy 90%? of the current VOEvent users). So I'm for the proposal.
Since the ultimate question here is how clever a parser can be, we should hear from those more familiar with XML schema validation as to how complex the timeseries model can be.
>>
-Josh
Received on 2008-01-21Z21:25:57