GCN Circular 22534
Subject
GRB 180325A: prompt LT observations
Date
2018-03-25T03:05:01Z (6 years ago)
From
Cristiano Guidorzi at Ferrara U,Italy <guidorzi@fe.infn.it>
C. Guidorzi (U. Ferrara), S. Kobayashi (LJMU), C.G. Mundell (U. Bath),
A. Gomboc (U. Nova Gorica), I.A. Steele (LJMU) on behalf of a large
collaboration report:
The 2-m Liverpool Telescope automatically began observing Swift GRB
180325A (Troja et al. GCN 22532) on March 25, 01:55:25 UT (143 seconds
since the GRB trigger time) with the RINGO3 polarimeter and the IO:O
camera in the SDSS-R filter. We clearly detect the optical afterglow
(Troja et al.) with the following magnitude:
Mid Time from GRB�� Exposure������������ Filter������������ Magnitude (AB)
(min)�������������������������� (s)
-------------------------------------------------------------
35.1���������������������������� 6x10�������������������� SDSS-R������������ 19.02 +- 0.05
-------------------------------------------------------------
as calibrated against nearby SDSS objects.