GCN Circular 20183
Subject
GRB 161117B: LCO optical observations
Date
2016-11-17T11:30:18Z (7 years ago)
From
Cristiano Guidorzi at Ferrara U,Italy <guidorzi@fe.infn.it>
C. Guidorzi (U. Ferrara), S. Kobayashi, I.A. Steele (LJMU), C.G. Mundell
(U. Bath), A. Gomboc (U. Nova Gorica) on behalf of a large collaboration
report:
One of the LCO 1-m telescope units in Siding Springs began observing
Swift GRB 161117B (Troja et al., GCN 20182) in the SDSS r filter on
November 17, 10:28:49 UT (39 minutes since the GRB trigger time). We do
not find any object within the XRT error circle down to the following limit:
Mid time from GRB Exposure Filter Magnitude
(min) (s)
----------------------------------------------------------
45 5x120 SDSS-R > 21.2
----------------------------------------------------------
Calibration is done against nearby USNOB-1 stars.