GCN Circular 5049
Subject
GRB060502: Super-LOTIS Observations
Date
2006-05-02T07:13:21Z (18 years ago)
From
Grant Williams at Steward Observatory <ggwilli@mmto.org>
G. G. Williams (MMTO), and P. A. Milne (Steward Observatory) on behalf of
the Super-LOTIS Collaboration, report:
The robotic 0.6-m Super-LOTIS telescope began observing the error box of
GRB060502 (Swift Trigger 208169, GCNC 5047) at 03:20:46 UT, 1034 seconds
after the burst (17.23 min; 33 seconds after the delayed GCN notice).
Our initial observations include 5 x 10s exposures, 5 x 20s exposures, and
30 x 60s exposures, all in the R-band.
Under thin cirrus we do not detect the Swift afterglow reported by La
Parola et al. and Cenko et al. (GCN 5047 & 5048) in our earliest 60 second
exposure to the following 3-sigma limiting magnitude estimated using
nearby USNO-B1.0 stars:
t_mid obs (UT) exp t (s) t-t_0 (s) Limit
--------------------------------------------------------
03:24:56 60 1284 R > 17.9
Additional observations and analysis, including image stacking, are
ongoing.