action items

[Arnold Rots]

ISO-8601 is not a unit.
And you can't append "UT" to the string.
You really should specify a proper coordinate system and, to me, it
makes much more sense to include this stuff in the WhereWhen - or use
an STC-type table (see earlier emails of mine).

  - Arnold

Roy Williams wrote:
[ Charset ISO-8859-1 unsupported, converting... ]
> 
> 
> Rob Seaman wrote:
> > Rather than send three more emails separately, here is a cafeteria 
> > plan.  Please select at least one of these three goals to work to 
> > bring to fruition:
> >
> >     1) VOEvent v2.0 - we need to reach a final decision (whether or 
> > not that means consensus) on time series - and we need to pick up the 
> > pen again and work discussions of time series, orbital elements, 
> > revised references, and the few other outstanding items into the 
> > document.
> 
> One approach that I have advocated is the following. First we allow the 
> <What> section of the VOEvent to contain a simple table as in (*). It is 
> a stripped down version of VOTable with just <Table>, <Field>, <Data>, 
> <TR>, and <TD> elements. An external table can also be referenced with 
> the <Reference> tag as anything elase can be. Note that many types of 
> table can not be used, we are not restricted to time series.
> 
> Then we define a Time series as a table that has a column which has time 
> (identified by the ucd=time.epoch). Or there can be other 
> specializations of the table concept, identified by Group Type.
> 
> (*)
> <What>
> <Group type="TimeSeries">
>  <Param name="first" value="2007-07-01T21:44:00UT" ucd="time.epoch" 
> unit="iso8601" />
>  <Table>
>    <Field name="Time"         ucd="time.epoch"              unit="s"/>
>    <Field name="Mag"          ucd="phot.mag; em.opt.R"              />
>    <Field name="Uncertainty"  ucd="stat.err; phot.mag; em.opt.R"    />
>    <Data>
>    <TR>
>          <TD>0</TD>
>          <TD>13.2</TD>
>          <TD>0.01</TD>
>    </TR>
>    <TR>
>          <TD>30</TD>
>          <TD>13.5</TD>
>          <TD>0.01</TD>
>    </TR>
>    </Data>
> </Group>
> <What>
> 
> 
> 
> -- 
> 
> California Institute of Technology
> 626 395 3670
> 
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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/
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