Date: Wednesday, April 23, 2025

Time: 13:00 UTC

Zoom Link: https://aao.zoom.us/j/84831315252?pwd=TjJZb0VBRVgxcDZ1cVVqTENZMWNMZz09

Contents

Agenda

1. Roll call and agenda
2. Review and approval of TM125 Minutes
3. Review of ACTIONS_for_TM126.pdf
   
4. Report on the IAU General Assembly/Working Group
5. Project Reports [Significant Events Only]
6. Overall TCG Status [Standing Item]
7. Approval of new IVOA Recommendation(s) [Standing Item]
   • VOResource-1.2 (final approval after last quick changes: final PR available here
8. CSP Report
9. IVOA Website [New Standing Item]
   • Draft new website available: https://webtest.ivoa.info/
   • Git Hub repository: https://github.com/ivoa/ivoa-web
     • Bug reporting and change requests: https://github.com/ivoa/ivoa-web/issues
10. Future Interop meetings
    • Northern Spring 2025 - Maryland, USA
    • Northern Fall 2025 - Görlitz (ADASS dates: 9-13 November 2025, Interop held after ADASS)
11. Date of next Exec meeting
12. AOB
13. Review of new actions

Reports from the Projects

NOVA (Argentina)

ArVO (Armenia)

AstroGrid (United Kingdom)

ASVO (Australia)

BRAVO (Brazil)

China-VO

• The National Astronomical Observatories, Chinese Academy of Sciences (NAOC) and Zhejiang Lab successfully hosted the “AI-Empowered Astronomy for Open Science” conference from 7 - 9 April 2025 in Hangzhou, China. The event convened global experts to explore AI-driven infrastructure for astronomical mega-projects, emphasising sustainable and equitable solutions to transform research, education, and outreach. Representatives from 6 VO projects, including China-VO, ArVO, BRAV, RVO, SA3 and VO-India gathered at the conferences. Talk topics from VO projects cover AI applications in Astronomy, LLM, AI-empowered Outreach and Education, etc. A BOF on Scientific Education was initiated and chaired by Chenzhou Cui. Topics related to VO training and IVOA liaison group are also discussed at the event.

CVO (Canada)

ESA (Europe)

Euro-VO (Europe)

GAVO (Germany)

JVO (Japan)

Kazakhstan VO

NLVO (Netherlands)

OV-France

RVO (Russia)

SA^3 (South Africa)

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

SVO (Spain)

UkrVO (Ukraine)

USVOA (United States)

VO-India

VObs.it (Italy)

• worked on IVOA web assets (maintenance & updates)
• INAF participation in a big nation-wide project is turning out as a place where new standard implementations happened (trying to bring authors to showcase their work)
  • under the same project an activity started to identify metadata for simulation runs discovery: might have SimDM /SimDAL impact
• just after the last Exec (end of February / start of March) the VO was the topic for a lively session discussion at an INAF workshop and for a dissemination of the ongoing work at an ASI workshop on future developments for space based projects

Report from the TCG

TCG met (vconf) twice since last Exec meeting

• 11 March - 14UTC
• 7 April - 21UTC

• main goal: interop schedule and preparation

Activity on documents on track include:

• VOResource-1.2 (Exec approval request)
• VOEvent-2.1
• StandardsRegExt -1.1

• Parquet in the VO - Note published
• ObsCore & Extensions (porting to ivoatex plus Radio, HE, TD IGs documents)

Recommendations discussion/activity highlights:

• ObsCore revision and Extensions discussion is continuously moving on and will see a plenary in College Park.
• Data Models modularity, levels/scope, and endorsement is an open discussion; another plenary planned for College Park.
• An effort is starting to discuss and promote guidelines about transitioning major versions (of protocols) in the Registry, server-side and client-side perspectives. There will be a discussion session with examples report in College Park.
• OPS IG / DAL / Apps are thinking about a convention to help providing common statistics on TAP (& other protocols) clients (agents) access.
• discussion is starting for a revision of the Documents Standard

Other activities:

• web assets (web, docs, ...): looking forward to switching to the new website before College Park
• GWS->DSP renaming ongoing, a few pages and links still need update

Interop preparation status:

• programme drafted, looking for further input
  • 10 (parallel slots) still available
• heads count nearly definitive: ~40% TCG in person
• looking forward to solve session chairs at the next TCG

Report from the CSP