GCN Circular 20949
Subject
GRB 170331A: LCO Sutherland observations
Date
2017-03-31T08:30:47Z (7 years ago)
From
Cristiano Guidorzi at Ferrara U,Italy <guidorzi@fe.infn.it>
C. Guidorzi (U. Ferrara), S. Kobayashi, I.A. Steele (LJMU), A. Gomboc
(U. Nova Gorica), C.G. Mundell (U. Bath) on behalf of a large
collaboration report:
We observed Swift GRB 170331A (Melandri et al. GCN 20946) on March 31,
03:21 UT (1.7 hours since the GRB) with two 1-m LCO units in Sutherland
(South Africa) with the SDSS i filter. We do not find any object within
the prompt enhanced Swift-XRT error circle (Evans GCN 20948) down to
i>17.5 mag (with an exposure of 2x120s) as calibrated against USNOB-1
nearby stars.