IVOA Technical Coordination Group

This Committee is formed by the Chairs of the Working and Interest Groups and includes the IVOA chairs and vice-chairs.

TCG Charter & History

The Charter is detailed here

The Chair/V Chair History is detailed here


  Chair Vice-Chair
TCG Janet Evans Marco Molinaro
Working Groups
Applications Tom Donaldson Adrian Damian
Data Access Layer James Dempsey Gregory Mantelet
Data Model Laurent Michel Jesus Salgado
Grid and Web Sevices Giuliano Taffoni Christine Banek
Registry Theresa Dower Pierre Le Sidaner
Semantics Markus Demleitner Carlo Maria Zwoelf
Interest Groups
Data Curation & Preservation André Schaaff Tim Jenness
Education Hendrik Heinl Giulia Iafrate
Knowledge Discovery Raffaele D'Abrusco  
Operations Mark Taylor Steve Groom
Radio Astronomy Mark Lacy Francois Bonnarel
Solar System Anne Raugh Baptiste Cecconi
Theory Gerard Lemson Simon O'Toole
Time Domain Brent Miszalski Mark Cresitello-Dittmar
IVOA Committees
Exec Bruce Berriman JJ Kavelaars
Standard and Processes Patrick Dowler  
Science Priorities Ada Nebot  
Inactive Working Groups
VOTable Assigned to Apps WG
VO Query Language Merged with DAL in May 2010
VOEvent Transformed into Time Domain IG in Oct 2012

IVOA Architecture

The current version of the IVOA Architecture Note (01 Nov 2021) can be found here

  • Note: Up-to-date architecture diagrams can be generated from with the ivoatex package. The complete inout filr with all RECs and some pre-RECs can be found in the IVOA Architecture document source: https://github.com/ivoa-std/architecture

On-going Recommendations

Standard Title Short Name RFC Page RFC period
      TCG Review Rec to Exec
Group Membership Service PR-GMS-1.0 GMSRFC 2021-08-25 to 2021-09-30  
EPN-TAP PR-EPN-TAP-2.0 EPNTAPV20RFC 2021-09-30 to 2021-11-14  
SimpleDALRegExt PR-SimpleDALRegExt-1.2 SimpleDALRegExtV12RFC 2021-10-13 to 2021-11-24  
MOC PR-MOC-2.0 MOC20RFC 2021-11-02 to 2021-12-17  
Measurements PR-Meas-1.0 MeasRFC2 HOLD  
Coordinates PR-Coords-1.0 CoordsRFC2 HOLD  

For WG chairs convenience,

Current Errata

Title Errata Page TCG Review
ConeSearch v.1.03 Erratum 2: Drop mandatory VOTable version SCS-1_03-Err-2 WG
SSA v1.1 Erratum 1: Base URL trailing separator clarification SSA-1_1-Err-1 WG

Current Note

Title Note Page TCG Review

Status column definitions,

  • WG means dicussions are underway
  • TCG means that TCG members should review and be prepared to vote at the next TCG meeting (telecon or face-to-face)
  • PASS/Date is when TCG reviewed and approved the errata
  • Note: Row will be removed in table by TCG VCh after Errata has made it to Doc&Stds pages - reviewed periodically during TCG mtg prep

IVOA Technical Assessment and Roadmap Documents

Standards Process Review

IVOA Interop Planning Notes

Meetings / Teleconf / Discussions / Coordination

Past Recommendations

Topic attachments
I Attachment Action Size Date Who Comment
PDFpdf Arch-2021-09-14.pdf manage 813.1 K 2021-09-16 - 21:26 PatrickDowler  
PDFpdf TCG_ActiveStds.pdf manage 63.8 K 2019-05-30 - 16:17 JanetEvans  
Unknown file formatxlsx TCG_ActiveStds.xlsx manage 13.1 K 2019-05-30 - 16:17 JanetEvans  
PDFpdf VOArchitecture-IVOAStandards_20160506.pdf manage 3843.5 K 2016-09-20 - 07:02 MatthewGraham  
Unknown file formatpptx VOArchitecture-IVOAStandards_20160506.pptx manage 439.9 K 2016-09-20 - 07:04 MatthewGraham  
Topic revision: r426 - 2021-11-26 - JamesDempsey
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