GCN Circular 22712
Subject
GRB 180512A: OASDG optical observations
Date
2018-05-12T23:39:22Z (6 years ago)
From
Luca Izzo at IAA-CSIC <Luca.Izzo@ICRA.it>
L. Izzo (HETH/IAA-CSIC) reports:
We observed the field of GRB 180512A (Deich et al., GCN Circ. 22710) with the 0.5m telescope of the Osservatorio Astronomico S. Di Giacomo located in Agerola, Italy ( http://acgo.it/oa )
We began observing at 22:31:54 UT (~30 min after the GRB trigger), and obtained 7x180s images in the Rc band. In our stacked image, we find no source inside the Swift-XRT error box down to a 3-sigma limit of Rc (Vega) > 20.2. The calibration was performed using nearby stars in the USNO B1 catalog.