ROME/REA Timeseries Photometry Data Release 1

The ROME/REA (Robotic Observations of Microlensing Events/Reactive Event Assessment) Survey was a Key Project at Las Cumbres Observatory (hereafter LCO) which continuously monitored 20 selected fields (3.76 sq.deg.) in the Galactic Bulge throughout their seasonal visibility window over a three-year period, between March 2017 and March 2020. Observations were made in three optical passbands (SDSS g', r', i'), and LCO's multi-site telescope network enabled the survey to achieve a typical cadence of ~10hrs in i' and ~15hrs in g' and r'.

In addition, intervals of higher cadence (<1hr) data were obtained during monitoring of key microlensing events within the fields. This catalog includes the full timeseries photometry for all ~8 million stars, down to a limiting magnitude of i~18mag.