Light curves in the IVOA
Robert J Hanisch
hanisch at stsci.edu
Tue Jun 22 16:56:38 PDT 2010
Speaking not as an expert in this domain at all...
but seeing the usual conflict between doing it right and doing it well
We need low cost of entry. We need users, adopters, and a clientele. We
also need to be prepared for when they get frustrated with their limited
system, ready to provide the next step up. People like Josh Bloom at UCB
are doing this stuff and making it work. We would be stupid to ignore this.
Maybe Tweets (140-characters) are a relevant example. Huge buy-in, limited
content. (Full disclosure: I have never read nor posted a tweet, and I
cannot imagine why I would ever want to do either.)
>From a fundamental point of view, I don't like Roy's or Rob's suggestions,
and do like Doug's, but I am guessing that this is probably what we need to
do. Doug pointed out something very important, however: significant
collections of TD data is out there now, compliant with SSAP, and one can
interpolate that is was not all that difficult. Perhaps providing some
tools to map simple time series data into SSAP could bridge the gap.
On 6/22/10 7:35 PM, "Rob Seaman" <seaman at noao.edu> wrote:
> In particular, VOEvent use cases emphasize the "Simple" in
> SimpleTimeSeries. A primary goal of v2.0 is a schema that is hardened
> (and validate-able) for battlefield usage by third party troops. Much
> effort has gone into SimpleTimeSeries to make it compatible with that
> On Jun 22, 2010, at 4:07 PM, Roy Williams wrote:
>>> Not surprisingly I support Raul's suggestion that a time series
>>> interface be based upon SSA and its underlying data model.
>> I entirely agree that the formats derived from the SSAP and STC
>> should be subsetted for light curves and other relevant time series.
>> I would also suggest that IVOA endorse other representations that
>> are already in use. I would like to suggest the simple time series
>> from Berkeley:
>> It is closing in on compliance with STC, and is expected to be
>> incorporated into VOEvent.
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