[ssig] Hello, IVOA Solar System Interest Group!

[Stéphane Erard]

Hello Anne



> Le 13 juin 2023 à 14:57, Anne Catherine Raugh <araugh at umd.edu> a écrit :
> 
> Hi Stépane!
> 
> On the subject of spectral cubes - as I suspect you know, this has been a sore point in PDS for a long time. The variations in the data typically reflected the variations in the instruments and how the cubes were assembled during an observing sequence. Of course the software used by the instrument teams also had an influence.

Yes, I've had a concern for years as OMEGA, VIMS, CRISM, VIRTIS, VIR and DeepImpact use inconsistent formats. 
Part of the pb was due to fuzzy/incomplete specs in PDS3 (additional planes + geometry & wvl), and I'm not sure how this evolved in PDS4. 
This prevents using generic tools to visualize the data (except as successive planes, eg, in ENVI)

> Is the goal to define a standardized format, or a standardized way of describing the various formats out there?

This has been an open issue for years but this was never really discussed I think. This is probably on a longer time scale than the roadmap, but we should at least start an inventory and a comparison with existing solutions in astronomy, and look at recent dev in OGC.

Best wishes
Stéphane

> 
> Regards,
> 
> -Anne.
> 
> On Tue, Jun 13, 2023 at 4:22 AM Stéphane Erard <stephane.erard at obspm.fr> wrote:
> Hello
> 
> Thanks for the roadmap at
> https://wiki.ivoa.net/twiki/bin/view/IVOA/2023ARoadmap#Data%20Access%20Layer%20WG
> 
> Comments, from VESPA side: 
> - planetary CRS IDs also need to be compliant with OGC standards, there has been some progress on this side recently. This is important to allow interoperability with OGS tools (GIS) used for planetary surfaces. Support is being added in astropy.
> - making Dataproduct_type consistent between ObsCore and EPN-TAP will be tricky, but we'll have a try
> - We're also working on a new EPN-TAP extension to support rotational parameters. This will require inputs from service providers.
> - I'm wondering if we want to start thinking about spectral cubes standards for solar system instruments. The current situation allows for many inconsistent variations, and poor generic support in tools. Again, there is something new we want to look at on OGC side.
> 
> Best wishes
> Stéphane
> 
> 
> > Le 12 juin 2023 à 16:44, Anne Catherine Raugh <araugh at umd.edu> a écrit :
> > 
> > Dear Colleagues,
> > 
> > It has been some time since this mailing list has seen much activity, so perhaps I should introduce myself: I'm your Solar System Interest Group Chair, Anne Raugh. I work at the Planetary Data System's Small Bodies Node and have been chair for a couple years now. My new Vice-Chair is Markus Demleitner.
> > 
> > If you've been following planetary developments at the IVOA, then you know that EPN-TAP 2.0 and MOC 2.0 (with temporal coverage) were approved last year, progress is being made on generating a comprehensive list of observatory codes using WikiData and other resources, VESPA is going strong, and there is increasing interest at astrophysical observatories in supporting planetary IVOA users as reported at recent Interops.
> > 
> > The "big ticket" item on our roadmap for this semester is to prototype the incorporation of body-fixed planetary reference frames into the Reference Frames Vocabulary. If you have particular interest in this topic, now would be an excellent time to start an email thread on that subject.
> > 
> > Also, if there are other pressing planetary issues that should be raised or prioritized for Solar System Interest Group attention, please do raise them here. (Note that the next meeting of the TCG is next Wednesday.)
> > 
> > Regards,
> > 
> > Anne Raugh
> > Solar System Interest Group Chair
> > PDS Small Bodies Node
> > University of Maryland
> > College Park, MD 20742-2421
> > 301-405-6855
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