GCN Circular 4523
Subject
GRB 060116: ROTSE-III Optical Limits
Date
2006-01-16T15:12:28Z (19 years ago)
From
Eli Rykoff at U of Michigan/ROTSE <erykoff@umich.edu>
E.S. Rykoff (U Mich), S.A. Yost (U Mich), H. Swan (U Mich), report on
behalf of the ROTSE collaboration:
ROTSE-IIIb, located at McDonald Observatory, Texas, responded to GRB
060116 (Swift trigger 177533, Campana, et al, GCN 4519), producing
images beginning 9.0 s after the GCN notice time. An automated response
took the first image at 08:38:46.0 UT, 78.8 s after the burst, under
fair conditions. We took 10 5-sec, 10 20-sec and 70 60-sec eposures.
These unfiltered images are calibrated relative to USNO A2.0 (R).
Comparison to the DSS (second epoch) reveals no new sources within the
3-sigma BAT error circle, or in the XRT error circle (Campana, et al,
GCN 4522) for both single images and coadding into sets of 10.
Individual images have limiting magnitudes ranging from 15.6-16.9; we
set the following specific limits.
start UT end UT t_exp(s) mlim t_start-tGRB(s) Coadd?
--------------------------------------------------------------------
08:38:46.0 08:38:51.0 5 16.1 78.8 N
08:38:46.0 08:39:55.0 69 17.7 78.8 Y
08:40:07.6 08:44:50.7 283 18.0 160.4 Y