Time Domain Interest Group Chair: John Swinbank Deputy: Mike Fitzpatrick IVOA September 26, 2013 – Waikoloa, HI

Time Domain Interest Group (TDIG) One Session Thursday @ 4pm, (Naupaka 7) Status of Documents SimpleTimeSeries, VOEvenRegExt, VOEvent Transport Protocol What’s left to do and who’s going to do it? Followup to Focus Session in Heidelberg Review feedback received from panelists Who’s working on what? Organizational Matters Wiki Page updates, can we make better use of it, etc HotWired III, Nov 13-15, Santa Fe, NM

TD Focus Session Followup Presentation Comments: Time Series Need discovery, access, std serialization & tools Want <any> vs. Time capability Data Queries By: Spectral Types, Classification, period, etc Tools To do period determination, filtering, detrending, fit sine funcs,… Data mining tools Follow-up or data augmentation, e.g. assoc catalogs/mages VOEvent Want to send all info in one packet, avoid callbacks Need a compact serialization (40 bytes info, 787 bytes XML)

TD Focus Session Followup Panel Discussion Points: Standards Implementations lagging stds, need more up-front for adoption Centralized IVOA code repository Simple Time Series Not perfect, but adequate until TS data model complete Tools Java vs Python No good clients for ObsCore VOEvent Transient distribution network, unclear who will build it Scalability of svcs a growing issue, e.g. image archive followup

Discussion Provocation Bulk Transport The “LSST Problem” (but applies to LOFAR and others) Query, Storage and Retrieval Individual subscriptions vary widely Searches custom to service, not positional, etc What does a Repository really look like? Available Toolkits Can we collect these for the TD community (if they exist) Is there general purpose software out there? Infrastructure Do we really have a backbone? Could we build a TransientZoo if we wanted to? Community What is the Venn diagram of IVOA and Hotwired?

Shameless Plug http://www.hotwireduniverse.org

Mahalo !