GCN Circular 13853
Subject
GRB 121011A: TNG optical observations
Date
2012-10-11T21:24:30Z (12 years ago)
From
Daniele Malesani at Dark Cosmology Centre, Niels Bohr Inst <malesani@dark-cosmology.dk>
D. Malesani (DARK), P. D'Avanzo (INAF/OABr), A. Melandri (INAF/OABr), V.
Nascimbeni (Univ. Padova), C. Padilla (INAF/TNG), report on behalf of
the CIBO collaboration:
We observed the optical afterglow of GRB 121011A (Racusin et al., GCN
13845) with the TNG equipped with DOLoRes.
The afterglow is well detected in a single 5-min exposure, with a mean
time Oct 11.829 UT (8.63 hr after the GRB). Its magnitude is R = 21.74
+- 0.06, assuming R = 17.84 for the USNO star at RA = 17:20:44.70, Dec =
+41:04:52.7.
The afterglow has the following coordinates (calibrated against USNO-B1
stars):
RA = 17:20:51.22
Dec = +41:06:37.4
with an estimated uncertainty of 0.4".