IACT DL3 meeting, March 2017, MPIK Heidelberg

Basic information

• When?

  • Start: Monday, March 20 at 2:30 pm
  • End: Friday, March 24 at noon

• Where?

  • MPIK Heidelberg
  • Conference room in the library building #12 (see MPIK site map, up the stairs, to the right)

• Contacts:

  • Christoph Deil and Catherine Boisson

• Remote participation: yes, on CTA eZuce, but for Monday afternoon only. See monday_connection_info.txt

• We will do a call the week before to prepare the meeting.

  • "IACT DL3" call on Tuesday, March 14 at 11 am on CTA eZuce.
  • Connection info (no password, guests allowed) is here.

About

This is a meeting on the data level 3 (DL3) data model and formats for imaging atmospheric Cherenkov (IACT) telescopes.

• The topic is data level 3 (DL3), i.e. the interface between pipeline and science tools. See "Open high-level data formats and software for gamma-ray astronomy" (2016) for an introduction / overview / status / next steps on DL3.
• The main focus is on CTA! Participation by existing IACTS (e.g. H.E.S.S., MAGIC, VERITAS, FACT), or similar telescopes (e.g. HAWC, neutrinos) is encouraged.
• This is a follow-up on the workshop from last year (see 2016-04_IACT_DL3_Meeting).

Goals of the meeting are:

• Get an overview and update from the CTA side on the aspects that influence DL3, such as planned observing modes to support, IRF precision requirements and status and plans for IRF production.
• Make progress on the DL3 specifications at gamma-astro-data-formats.
• We have been stuck a bit since last year with major questions concerning the data model and formats, e.g. on how to organise the data and link the pieces. Other major points are listed in 2016arXiv161001884D. We would like to make some real progress on those key DL3 issues, and try to develop something that can support CTA well and then prototype it in the coming year.
• By the end of the week, have a document summarising the information that determines the CTA DL3, and one or more concrete options to do it outlined, with action items what to investigate next (in 2017) to make progress listed.

Agenda

Monday afternoon

• We will start with presentations on Monday 2:30 pm.

• A telcon connection will be provided (CTA eZuce, "IACT DL3", no password, see monday_connection_info.txt)

• Christoph Deil: DL3 Introduction and overview

  • Slides: 2017-03-20_DL3_Intro.pdf
  • https://github.com/open-gamma-ray-astro/2016-04_IACT_DL3_Meeting
  • https://arxiv.org/pdf/1610.01884.pdf
  • http://gamma-astro-data-formats.readthedocs.io/
  • https://github.com/open-gamma-ray-astro/gamma-astro-data-formats

• Jim Hinton and Alison Mitchell: CTA observation modes and IRF requirements overview

  • Slides: CTA_IRF_requirements.pdf

• Christoph Deil: DL3 FITS in HESS

  • Slides: 2017-03-20_DL3_HESS.pdf

• Tarek Hassan: DL3 FITS in Magic

  • Slides: MAGIC_DL3_report_thassan.pdf

• Tarek Hassan: proposal for point-like IRF format in DL3

  • Slides: PointLikeIRFs_proposal.pdf
  • Early discussion: open-gamma-ray-astro/gamma-astro-data-formats#71
  • Pull request: open-gamma-ray-astro/gamma-astro-data-formats#79
  • Preview of new version of spec: http://www.gae.ucm.es/~thassan/gamma/irfs/index.html

• Open discussion

The rest of the week is reserved for discussions & document or spec writing.

Participants

• Catherine Boisson
• Tarek Hassan
• Jose-Luis Contreras
• Bruno Khelifi
• Christoph Deil