First Set of O3 Bulk Strain Data Released

The LIGO and Virgo collaborations have released bulk strain data taken during the first six months of O3 on 30 April 2021. This is the O3a data release. It includes data taken between 1 April 2019 and 30 September 2019. We plan to release the remaining strain data from O3 later this year. For more information about LIGO-Virgo data releases, visit Gravitational Wave Open Science Center.