TDIG at Paris interop

[AdaNebot]

Dear TDIGers, 

Last week during the Paris IVOA interop we saw lots of interesting things related to Time Domain!  

You can find all the Time Domain related presentations under:   
https://wiki.ivoa.net/twiki/bin/view/IVOA/InterOpMay2019TDIG <https://wiki.ivoa.net/twiki/bin/view/IVOA/InterOpMay2019TDIG>

And the closing remarks under: 
https://wiki.ivoa.net/internal/IVOA/InterOpMay2019PlenaryTCG/TDIG_Closing2019A.pdf <https://wiki.ivoa.net/internal/IVOA/InterOpMay2019PlenaryTCG/TDIG_Closing2019A.pdf>

Looking forward to seeing you again for yet another productive interop meeting in Groningen,
Ada for the TDIG
 
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A summary of things we saw during the meeting:
+ TIMESYS in VOTable1.4 
   - There are implementations in services: VizieR in beta and GAVO)
   - There are implementations in clients too: Topcat, Stilts, SPLAT
   - VOTable1.4 in validator: votlint 
   - Discussion about the case "refposition=TOPOCENTER” since it is not specific enough for clients to fully exploit it. 
+ Space-Time MOCs: 
   - Coverage in Space and Time of any image collection or catalog containing positions and time
   - Filter catalogs by intersection of Space-Time MOCs 
   - IVOA note is ready (Durand, Fernique, Nebot et al. 2019) http://ivoa.net/documents/stmoc/index.html <http://ivoa.net/documents/stmoc/index.html>
   - Proto for tests: http://aladin.u-strasbg.fr/java/stmoc/index.html <http://aladin.u-strasbg.fr/java/stmoc/index.html> 
+ VOEvents: 
   - Baptiste is one of the editors of VOEvent. We will work together to take feedback from community into account (FRBs and SSIG cases). 
   - Discussions over how to make VOEvents services and streams discoverable.

A list of things we will keep on working until Groningen: 
+ TimeSeriesDM: 
   - Explore how the current status of the data model is able to describe ZTF-DR1 products (Objects Table, lightcurves, single-epoch images, quality flags)
+ ST-MOC: 
   - Work with data providers to precompute STMOCs: VizieR catalogs and HiPS, and for solar system body ephemeris — work close to SSIG for that. 
   - Ingest in CDS MocServer: => clients can resource by Space-Time. 
   - Create library in python and add to mocpy. 
   - Do we need a standard IVOA 2.0 MOC for SMOC, TMOC and STMOC? 
   - VO registry coverage by STMOC? Work with registry for that. 
+ Work with Semantics to improve discovery and client use of: 
   - VOEvents services and streams (What and where)
   - Time Series as distributed by datalink (data product (sub)type)
   - Get the refposition case of topocenter started for TIMESYS in VOTable1.4

As you can see the week was a busy and productive one! 
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