Thursday, 9 November 2023 @ 17:30 to 19:00 Mountain Standard Time (HYBRID)

UTC: 12:30 to 2:00 UTC Friday, Nov. 10

Contents

Logistics

This is a hybrid meeting.

In Person: Main Conference Room at NOIRLab headquarters, 950 North Cherry Avenue, Tucson, Arizona 85719

Virtual: https://noirlab-edu.zoom.us/j/97209637799?pwd=VEMxVXZ1S05VK3hJQm1KMWFqc2JKQT09

Agenda

1. Roll call and agenda
2. Review and Approval of TM115 (PDF) Minutes
3. Review of Exec actions for TM116 (PDF)
4. Project Reports [Significant Events Only]
5. Overall TCG Status
6. Approval of new IVOA Recommendation(s) [Standing Item]
7. CSP Status
8. IVOA-IAU Liaison Group
9. Future Interop meetings
   • Northern Spring 2024: Sydney - Week of May 12
10. IVOA Website

• update to member organization graphic: remove HVO as member organization
• web content: near-term solution for curation and maintenance, user-focused landing page (see JE email to Exec dated 30 Aug. 2023)
• draft new website available → here
• comments on new site available → here

12. New IVOA Chair and Vice-Chair

• Christophe and Simon’s current terms coming to an end during current Interop

12. Date of next Exec meeting
13. AOB
14. Review of new actions

Reports from the Projects

NOVA (Argentina)

ArVO (Armenia)

AstroGrid (United Kingdom)

ASVO (Australia)

BRAVO (Brazil)

China-VO

ChiVO (Chile)

CVO (Canada)

ESA (Europe)

Euro-VO (Europe)

GAVO (Germany)

GAVO's Heidelberg data centre keeps adding resources at a rate of a few per semester. As the connector between the VO Registry and the EOSC, we have made some minor updates to the metadata mapping scheme to improve our representation and landing page for VO resources (prefix your favourite resource's ivoid with http://dc.g-vo.org/LP/ to try it out and give feedback). Also: if you have VO-related educational material, please register it so it shows up on http://dc.g-vo.org/VOTT.

We maintain and support our data publication package DaCHS. Notable improvements since the last interop include preliminary support for the new data-origin metadata and a proposed way to improve exporting of D-Links to ADS and similar services (“bibVO”). DaCHS 2.9 should be released shortly after the Interop.

We also participate in the development of pyVO, where we are working on global dataset discovery capabilities, drafted code to do epoch propagation based on our COOSYS proposal and keep rounding out the new registry API. GAVO has also funded an effort to improved the postgres extension pgsphere so catastrophic query plans (and hence execution times in the hours instead of seconds) become less likely.

In standards, we worked on astrometric functions in the UDF catalogue, tried to finally put sufficient annotation for epoch propagation into VOTable (outcome still uncertain) and fixed some other issues on the way to VOTable 1.5, produced another draft of the product-type vocabulary with a view to Datalink 1.1, and released an RFC-able version of VOUnits 1.1.

Also: Have a look at our blog, http://blog.g-vo.org

JVO (Japan)

Kazakhstan VO

NLVO (Netherlands)

OV-France

RVO (Russia)

SA^3 (South Africa)

SKAO (Square Kilometre Array Observatory; Australia & South Africa)

The SKAO is already in the active construction phase. The science verification phase for Array Assembly 2, AA2, composed of 64-station and 64-dish arrays in the two locations, is expected for Q3/Q4 2026. The SKA Regional Centres Network (SRCNet) is in the transition from prototyping to development phases, with the science verification phase milestone as the target for a simplified but open-to-the-community science platform.

During the last period, the SRCNet has been involved in several IVOA initiatives, in particular the ones related to the interoperability and connection between science platform nodes (required for the SRCNet federated deployment). SRCNet is participating in the leading of the Execution Planner standardisation and identifying other ways to transparently connect astronomical science platforms allowing heterogeneous local software stacks.

The SRCNet is making use of IVOA standards in its design and in its prototypes. The Data Management System prototypes include ObsCore TAP discovery services and metadata associated with the data using IVOA data models. Also, the Identity & Access Management (IAM) including Single Sign-on is designed to accept different identity providers and the Group Membership System makes use of the IVOA GMS protocol.

Apart from its active participation in the IVOA GWS WG, the SRCNet members are increasing their involvement in the IVOA Radio IG so radio data is better integrated into the IVOA context.

SVO (Spain)

UkrVO (Ukraine)

USVOA (United States)

VO-India

VObs.it (Italy)

Report from the TCG

Report from the CSP