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<p class="MsoNormal"><span style="font-size:12.0pt">Hi Bruno,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">I’m interested in this discussion and am certainly available for the IVOA meeting. As you say, at a high level it will be interesting to discuss what is going well and what could work better, and what the
current thinking is on pyvo becoming an astropy coordinated package. IVOA contributions to pyvo (and astropy) have been increasing, but more participation would obviously be better. These lower level specific questions regarding where VO functionality should
be built and maintained may also help inform the discussion:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1"><span style="font-size:12.0pt">What is the timeline for deprecating TAPPlus in astroquery in favor of a unified pyvo TAP implementation? See
<a href="https://github.com/astropy/astroquery/pull/2034">https://github.com/astropy/astroquery/pull/2034</a>
<o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1"><span style="font-size:12.0pt">Where should handling of VOTable metadata live? A specific instance of this is here:
<a href="https://github.com/astropy/astroquery/issues/2036">https://github.com/astropy/astroquery/issues/2036</a>
<o:p></o:p></span></li></ul>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Tom<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">Bruno Merin <bruno.merin@sciops.esa.int><br>
<b>Date: </b>Thursday, April 22, 2021 at 1:40 PM<br>
<b>To: </b>Tom Donaldson <tdonaldson@stsci.edu>, Erik Tollerud <etollerud@stsci.edu>, Thomas Robitaille <thomas.p.robitaille@gmail.com>, Brigitta Sipocz <bsipocz@gmail.com>, Adam Ginsburg <adam.g.ginsburg@gmail.com>, TCG IVOA <tcg@ivoa.net>, Baptiste Cecconi
<baptiste.cecconi@obspm.fr>, AdaNebot <ada.nebot@astro.unistra.fr>, "Damian, Adrian" <Adrian.Damian@nrc-cnrc.gc.ca>, Kelle Cruz <kellecruz@gmail.com>, Christine Banek <CBanek@lsst.org>, Javier Duran <jduran@sciops.esa.int><br>
<b>Cc: </b>AstroPy Coordinators <coordinators@astropy.org>, csp <csp@ivoa.net><br>
<b>Subject: </b>Astropy - IVOA - pyVO follow-up online discussion in May<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Dear all, <o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">I hope my email finds you all and your families well and with good health.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">It is now roughly two years since some of us got together at a nice hackathon in Paris between astropy, astroquery and IVOA software engineers to identify possible synergies and to try to put a collaboration on
motion.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">In preparation for the upcoming IVOA online interop meeting from the 25th to the 28th of May, we would like to ask whether you could be available for a follow-up discussion of approx. 1.5 hours, on what worked well,
what is ongoing, and what could still do to better for the benefit of the astronomical community as a whole. Among other things, we would like to understand what is pending for pyvo to become an astropy affiliated package and to get your advice on what could
be the best use of people’s times in this collaboration or by contributing to astropy.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Please share your thoughts about this conversation and this collaboration via email and let me know whether you could participate in a session, whose exact date and time is still TBD.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Many thanks in advance for your time and I look forward seeing you soon,<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Bruno<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in;background:white"><span style="color:black"><br>
</span><b><span style="font-size:7.5pt;font-family:"Verdana",sans-serif;color:black">ESA - European Space Agency</span></b><span style="color:black">
<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in;background:white">
<span style="font-size:7.5pt;font-family:"Verdana",sans-serif;color:#00A1E0">Dr. Bruno Merín</span><span style="font-size:7.5pt;font-family:"Verdana",sans-serif;color:gray"><br>
Head of the ESAC Science Data Centre (SCI-SAA)</span><span style="color:black"><o:p></o:p></span></p>
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<b><span style="font-size:7.5pt;font-family:"Verdana",sans-serif;color:gray">European Space Astronomy Centre (ESAC)</span></b><span style="font-size:7.5pt;font-family:"Verdana",sans-serif;color:gray"><br>
Camino Bajo del Castillo s/n<br>
Villanueva de la Cañada, 28692 Madrid, Spain</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in;background:white">
<span style="color:black"><a href="mailto:bruno.merin@esa.int"><span style="font-size:7.5pt;font-family:"Verdana",sans-serif;color:gray">Bruno.Merin@esa.int </span></a></span><span style="font-size:7.5pt;font-family:"Verdana",sans-serif;color:black">| </span><span style="color:black"><a href="http://cosmos.esa.int/esdc"><span style="font-size:7.5pt;color:gray">cosmos.esa.int/esdc</span></a></span><span style="font-size:7.5pt;font-family:"Verdana",sans-serif;color:black"><br>
Phone: +34 91 813 1456 | Fax: +34 91 813 1218</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in">On 20 Mar 2019, at 18:32, Bruno Merin <<a href="mailto:bmerin@sciops.esa.int">bmerin@sciops.esa.int</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Dear Tom, Erik, Thomas, Brigitta and Adam,
<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">We are planning to organize a hackathon on May 15th 2019 in the afternoon at our Paris IVOA <a href="https://indico.obspm.fr/event/64/overview">interop meeting</a> where we would like to invite people to do hacks
that explore the links between astropy/astroquery and the VO infrastructure, in particular focussing possibly on time-domain use-cases. <o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Ada Nebot, who is coordinating the IVOA time domain interest group (TDIG), she proposed the following two areas of possible interest / overlap although there might be others:<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">1 - VOTable <—> astropy: Conversions between VOTables with the TIMESYS element and the astropy.time class.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">VOTable: <a href="http://www.ivoa.net/documents/VOTable/20190318/">http://www.ivoa.net/documents/VOTable/20190318/</a><o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">astropy.time <a href="http://docs.astropy.org/en/stable/time/index.html">http://docs.astropy.org/en/stable/time/index.html</a><o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">2 - T-MOC & astropy : The T-MOC format is a time-dependent Multi-Order Coverage structure, e.g. a healpix structure that indexes spatially the existing data in the sky (that is the MOC), but chopped off in time
intervals to allow easy visualization and access to data in both space and time (that is the T-MOC).<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><a href="https://wiki.ivoa.net/internal/IVOA/InterOpMay2018TDIG/TDIG-TBoch-TMOC-MOCPy.pdf">https://wiki.ivoa.net/internal/IVOA/InterOpMay2018TDIG/TDIG-TBoch-TMOC-MOCPy.pdf</a><o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><a href="https://github.com/cds-astro/mocpy/blob/master/notebooks/tmoc.ipynb">https://github.com/cds-astro/mocpy/blob/master/notebooks/tmoc.ipynb</a><o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">The reason of my message is to inform you about this hackathon, ask for your feedback on whether this would be of interest or not for some of the astropy developers and to ask for advice on how do you think this
event could be more useful to both the astropy users and IVOA users. It would also be great if you would know some astropy contributor who might be based in Paris and might want to come in person to the session.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Finally, should you be interested, you are all of course invited to join any of the two telecons described below where we will discuss what to prepare and how to organize the hackathon.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Thanks in advance for your time,<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Bruno<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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