GraceDB Overview
The Gravitational-Wave Candidate Event Database (GraceDB) is a service operated by the LIGO Scientific Collaboration. It provides a centralized location for aggregating and retrieving information about candidate gravitational-wave events. GraceDB provides an API for programmatic access, and a client package is available for interacting with the API.
Useful information
- Information about GW alerts and real-time data products is available in the LIGO/Virgo Public Alert Guide
- Real-time status of the LIGO Data Grid (LVK Credentials Required)
- Need help? Send an email to computing-help@ligo.org, or LIGO/Virgo/KAGRA users can report issues on the GraceDB Gitlab page
Playground instance
This GraceDB instance is designed for users to develop and test their own applications. It mimics the production instance in all but the following ways:
- Phone alerts (calls/SMS) are disabled
- Email alerts are disabled
- igwn-alert messages to kafka://kafka.scimma.org/ are enabled
- Messages are sent to group: gracedb-playground
- Test events and superevents are removed after 21 days
- Hourly mock MDC events and superevents are removed after 30 days
- Production-like events and associated data will be preserved on a best-effort basis
- Only LIGO logins are provided
Server code version: 2.33.0
