GCN Circular 15166
Subject
GRB 130831A: Optical Observations via Virtual Telescope, follow-up
Event
Date
2013-09-02T11:21:46Z (12 years ago)
From
Gianluca Masi at Bellatrix Astronomical Obs <gianluca@bellatrixobservatory.org>
G. Masi (Ceccano, Italy) and F. Nocentini (Frosinone, Italy)
report:
On Sept 1.9197 2013 UT, we imaged the field around GRB
130831A (GCN 15139)
remotely using the the 0.43m-f/6.8 robotic unit part of the
Virtual
Telescope robotic facility in Italy, about 33 hours after
the burst.
We co-added 12, 300-seconds unfiltered CCD images and
detected the afterglow at the same position we gave in GCN
15152.
We performed photometry, assuming R-mags from UCAC-4 for the
stars in the
field, getting an estimate for the magnitude of 20.7 (CR).