Laser Interferometer Gravitational-wave Observatory

Welcome to the public data portal for the Laser Interferometer Gravitational-wave Observatory (LIGO) project. Please select a day from the calendar to see archived data from the LIGO Hanford (LHO; pictured left) and Livingston (LLO; right) observatories.

These pages contain daily information about the LIGO and GEO600 detectors beginning on November 30, 2016, as well as summary information for the first and second Advanced LIGO Observing Runs. Since the second observing run concluded on August 25, 2017, the Advanced LIGO detectors are currently in an upgrade phase. The pages for dates after August 25, 2017 may contain little or no data.

Information about the Virgo detector is available from July 14, 2017 onward. A summary of Virgo's perfomance during the second observing run can be found here.

For questions or comments, please contact the LIGO Open Science Center.

This page is a product of the LIGO Open Science Center. All data were recorded at the LIGO observatories in Hanford, Washington and Livingston, Louisiana, USA; see ligo.org for more information.

To learn more about physical environment monitoring near the LIGO detectors, including seismic and weather activity, see pem.ligo.org.