VOEvent priorities

[Andrew Drake]

Hi Andy,

I think that we can deal with small static values of N as
we both have in past VOEvents (with groups and params).
It seems that we need to decide is whether there a range where
N (params, measurements, characters, bytes, etc) that is better
contained within the VOEvents than referenced from them. For
event sources (or follow-up) without any secure and robust
repository it certainly seems like a good idea to include such
info. For very large N this would seem to create additional
difficulties. There is also the question of whether we should
actually be thinking beyond the SimpleTimeSeries data model for
all the other kinds of tabulated data that are related to events
(perhaps not full sodsets). I expect that VOEvent v3.0 could
well address issues relating to additional types of tables.

cheers,
        Andrew
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On Thu, 4 Feb 2010, Andy Becker wrote:

> Hi - At least for LSST, I could envision us publishing in the event the 
> photometry from our 2 back-to-back exposures.  If you ascribe to the 
> zero-one-infinity rule of thumb, this calls for some sort of time series to 
> represent these N>1 blocks of information.
>
> Andy
>
>
> Andrew Drake wrote:
>> 
>> Hi Rob,
>> 
>> On Thu, 4 Feb 2010, Rob Seaman wrote:
>>> On Feb 3, 2010, at 8:11 PM, Andrew Drake wrote:
>>>> Your comment above seemed clear, "astronomers often include time series 
>>>> in their "telegrams"".
>>> That also includes people on this group.  LSST is only one of the upcoming 
>>> projects that - in effect - will be taking movies of the sky.  Those 
>>> movies will often be expressed as simple time series of some object or 
>>> another.
>> 
>> I wasn't aware that LSST had agreed to use this particular representation 
>> of a simple time series. If they do want to include their full time series
>> within events, rather than simply link to it, we should certainly ponder 
>> how this amount data can be handled within the VOEvent network.
>> 
>>>> Based on Roy's limited results I would think that this is not often the 
>>>> case. Rather, even
>>>> though it is possible to include time series in ATels, it is uncommon.
>>> 
>>> There are many kinds of telegrams: http://bit.ly/a7tpoL
>> 
>> There certainly are still sources of VOEvents to tap. Even though
>> most of the sources on this slide do not issue telegrams or VOEvents,
>> and a couple have long since closed shop, including time series would
>> certainly be useful if attracts a few more groups to use VOEvents.
>> Even though most groups create links to their time series data, the
>> amateur astronomers often do include small pieces of time series
>> data in their emails to VSNET and AAVSO.
>> 
>> cheers,
>>        Andrew
>
>

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