GCN Circular 19247
Subject
GRB 160327A: Early RAPTOR Limits
Date
2016-03-29T22:58:53Z (8 years ago)
From
James Wren at LANL <jwren@lanl.gov>
J. Wren, W.T. Vestrand, P. Wozniak, and H. Davis,
of Los Alamos National Laboratory report:
The RAPTOR network of robotic optical telescops made observations of Swift
trigger 680655 (Racusin, et al., GCN 19235). Our Raptor-S telescope began
imaging at 09:16:27.58 UT, 19.9 s after the Swift trigger time. We do not
detect the optical counterpart reported by RATIR (Golkhou, et al., GCN 19236).
We derive the following 3-sigma limits for our unfiltered observations based
on comparison to the USNO-B1.0 catalog R-band.
t-mid(s) exp(s) mag_limit
-------------------------------
32.5 5 17.4
67.8 40 18.6
131.8 10 18.0
180.4 100 19.2
249.9 200 19.6