VizieR Online Data Catalog: OGLE/KMTnet VI bands photometry of OGLE-2019-BLG-0551 (Mroz+, 2020)

The magnification of the source flux induced by lensing was first found by the Optical Gravitational Lensing Experiment (OGLE) Early Warning System on 2019-April-27 (HJD'=HJD-2450000~8600). Two days later (HJD'~8602), the event was independently identified by the Korea Microlensing Telescope Network (KMTNet) and it was designated as KMT-2019-BLG-0519 in the KMTNet event list.

The OGLE survey is conducted utilizing the 1.3m Warsaw telescope located at Las Campanas Observatory in Chile. The telescope is equipped with a mosaic camera that consists of 32 2kx4k detectors, yielding a 1.4deg² field of view with a single exposure. The KMTNet survey uses three identical 1.6m telescopes that are globally distributed at the Siding Spring Observatory in Australia (KMTA), Cerro Tololo Interamerican Observatory in Chile (KMTC), and the South African Astronomical Observatory in South Africa (KMTS). Each of the KMTNet telescopes is equipped with a camera consisting of four 9kx9k chips, yielding 4deg² field of view. For both surveys, images are mainly taken in the I band and a small subset of images is obtained in the V band for the source color measurements.

(1 data file).