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DESC Broker Workshop

Proposed Agenda for the DECS Brokers Workshop at Lawrence Berkeley National Labs on Thur/Fri Feb 21/22

Link to Talks

Link to Live Notes

Important Notes

On Thursday we are in Building 62 Room 203, and on Friday we are in Building 2 Room 100B.

More information about visiting LBNL can be found here:

This informal workshop has no funding for catering, so we have planned 30 minute breaks to allow time to go to the LBNL cafeteria for a coffee. Note the LBNL espresso bar closes at 3pm.


You should all be receiving an LBL Shuttle Pass. There are two shuttle routes, Blue and Orange. The routes and timetables are found in the following link:

Orange: Route goes through the full perimeter of campus including downtown. Route does not go by LBL Guest House. Route goes by Building 62 where we meet on Thursday.

Blue: Route goes through the north of campus and downtown but not the south of campys. Route goes by LBL Guest House. Route goes by Building 62 where we meet on Thursday and Building 2 (the stop marked 54) where we meet Friday.

The Guest House is very close to Building 2 and a 8 minute walk to Building 62.


Location: Building 62 Room 203

Session 1: Science Vision and Precursor Surveys (9:00 - 10:15)

Goals: To get everyone on the same page (welcome, introduction, work shop goals, “stand up” session), to establish the scientific priorities of a DESC broker, and review lessons from previous surveys.

Break: Coffee/snacks ON OUR OWN (10:15 - 10:45)

Session 2: LSST Prompt Processing Data Products (10:45 - 12:00)

Goals: Overview of the prompt processing data products from LSST and ones currently available from ZTF, and important differences. An overview of the Brokers proposal process. ** (Eric Bellm and Melissa Graham)

Break: Lunch ON OUR OWN (12:00 - 1:00)

Session 3: Broker Components (1:00 - 2:30)

Goals: Understand the building blocks of brokers, essential components for follow-up prioritization.

Break: Coffee/snacks ON OUR OWN (2:30 - 3:00; note the LBNL cafeteria espresso bar closes at 3pm)

Session 4: Infrastructure in Development (3:00 - 5:00)

Goals: Formal presentations that detail the plans from Broker and TOM developers, including implemented approaches to broker components, choice of API and schema formats. Speakers should please focus on aspects that would be most relevant to a DESC broker.

Optional/overflow: Preparation for Hands-On Work (TBD, if time allows)

This time might be used for account setup, permissions, a sandbox environment pre-tutorial, software installation, etc. Whatever is needed. We could also spend this time on a hands-on demo, or a general discussion about science objectives and alerts.



Location: Building 2 Room 100B

Session 5: Additional Talks and a Group Discussion on “Charting the Course Forward” (9:00 - 10:15)

Goals: (I) There are some people who can only attend on Friday, and some potential topics who still do not have an identified speaker. (II) We will discuss charting the course forward for a DESC broker and its components.


Discussion on Broker components:

As a group, we will compile a list of needs and make a rough flow-chart diagram for the DESC broker.

Break: Coffee/snacks ON OUR OWN (10:15 - 10:45)

Session 6: Sandbox Setup (10:45 - 12:00)

Goals: Based on the results of the morning’s “big-picture” discussion about a future DESC broker, we will focus on what is needed in terms of a common sandbox infrastructure that can use precursor data and simulations in order to develop the envisioned DESC broker components.

Session 7: Hacking with Alerts and Sandbox (1:00 - 2:30)

Goals: Face-to-face hack session to initiate sandbox session.

The hacking topics will include, e.g.:

Break: Coffee/snacks ON OUR OWN (2:30 - 3:00; note the LBNL cafeteria espresso bar closes at 3pm)

Session 8: DESC Broker Discussion and Planning (3:00 - 5:00)

Goals: Reports from the hack session, assignments of action items, and preparation of documentation.

An open discussion session for DESC to answer the following:

Preparation of a set of summary slides for presentation during the DESC meeting.