LIGO - Virgo Collaboration

GW Open Data Workshop #3

May 26 - 28, 2020

Gravitational-Wave Open Data Workshop #3

Advanced LIGO and Advanced Virgo are now observing the gravitational-wave sky with unprecedented sensitivity. To date, there have been over 50 potential gravitational-wave transients observed, and planned detector upgrades are likely to accelerate the pace of discovery in the coming years. This new window on the universe is providing insights on a range of topics, including compact body populations, cosmology, and fundamental physics.

LIGO and Virgo strain data from past observation runs and data snippets around discoveries are made publicly available at, along with associated software libraries. The LIGO and Virgo collaborations are hosting an Open Data Workshop to facilitate working with these data products. This workshop is the third edition of a series that began in 2018. It is intended for scientists and students who wish to learn about using gravitational-wave data and software in order to conduct research of their own. The workshop will provide a mixture of lecture style presentations and hands-on programming exercises, using publicly available gravitational-wave data and specialized software tools.


Due to the ongoing, worldwide outbreak of the novel coronavirus (COVID-19), we have decided to hold this meeting remotely. This is a change from the previously announced location, and we appreciate your understanding as we adjust to the current conditions.

This meeting will take place remotely using zoom. Connecting instructions will be e-mailed to all registered participants in advance of the meeting. Participants are encouraged to test their connection, including any audio and video equipment, before the workshop dates, in order to help make the meeting work as smoothly as possible.


Advance registration for the workshop is required; attendance will be limited on a first-come, first-serve basis. There is no fee to attend the workshop. Registration is now closed. A list of registered attendees may be seen on the participant list.

Please sign-up for the GWOSC e-mail list to be informed about future workshops.


The program will include a mixture of lecture style presentations and hands-on programming exercises. For context, see programming from past workshops.



Setup Instructions:

Quiz Questions: Google Quiz

Before the workshop:

If you are not familiar with Python, see: If you are not familiar with working in the frequency domain, see (for example):


All times U.S. Pacific, unless otherwise noted. Lectures begin at 08:00 Pacific / 15:00 UTC. We will make an effort to post lecture videos here immediately after each lecture session. We hope this will enable people in all time zones to watch the lectures (live or recorded) at a convienient time. If possible, please watch lectures in advance of the corresponding hands-on session.

Day 1: May 26 - Recording
  • 08:00 - Workshop Welcome
  • 08:15 - Introduction to LIGO detectors: Gregg Harry (slides)
  • 09:00 - Public LIGO/Virgo data: Jonah Kanner (slides)
  • 09:30 - Coffee Break
  • 09:45 - Data quality and GWpy: Marissa Walker (slides)
  • 10:30 - Session end
  • --- Break ---
  • A hands-on session will follow lectures (see below)
Day 2: May 27 - Recording
  • 08:00 - Introduction to CBC: Alan Weinstein (slides)
  • 08:45 - Searches with PyCBC: Derek Davis (slides)
  • 09:30 - Coffee Break
  • 09:45 - Parameter estimation with bilby: Sylvia Biscoveanu (slides)
  • 10:30 - Session end
  • --- Break ---
  • A hands-on session will follow lectures (see below)
Day 3: May 28
  • 08:00 - Conclusion
  • 09:00 - End of workshop

Hands-on Sessions

Hands-on sessions provide a unique opportunity for workshop participants to discuss tutorials in a small group setting. Registered participants: please use the links below to to find your room assignment and scheduled times.

Room Assignments
Example schedule

Data Challenge

Workshop participants are invited to participate in a Data Challenge to test the skills they have learned in the workshop. Participants may submit solutions as individuals or in teams of up to 3 people. Solutions are due at the start of the "Conclusion" session on Day 3 (May 28 at 8:00 AM Pacific).


A great team of mentors is working hard to prepare the tutorials, and will provide help and guidance during the hands-on sessions.

Meet the mentors!