GCN Circular 17493
Subject
GRB 150222A: TNG optical observations
Date
2015-02-23T02:32:04Z (9 years ago)
From
Daniele Malesani at Dark Cosmology Centre, Niels Bohr Inst <malesani@dark-cosmology.dk>
D. Malesani (DARK/NBI), V. D'Elia (INAF/OAR and ASI/ASDC), P. D'Avanzo
(INAF/OABr), A. Melandri (INAF/OABr), S. Covino (INAF/OABr), V. Lorenzi
(INAF/TNG), Albar Garcia de Gurtubai Escudero (INAF/TNG), report on
behalf of the CIBO collaboration:
We observed the field of GRB 150222A (Bernardini et al., GCN 17486) with
the 3.6m TNG telescope equipped with the DOLoRes camera. Observations
consisted of 4 images in the I band for a total of 20 min exposure. The
seeing was poor (3.2").
No object is detected within the (currently unenhanced) XRT position,
down to a limiting magnitude I > 22.3 (calibrated against nearby USNO
stars). The mean time of the observation was 2015 Feb 23.055 UT, that is
8.4 hr after the GRB.