GCN Circular 9575
Subject
GRB 090618: SARA Second Epoch Observations
Event
Date
2009-06-25T21:08:25Z (17 years ago)
From
Adria C. Updike at Clemson U <aupdike@clemson.edu>
Adria Updike, Sean Brittain, Dieter Hartmann (Clemson University), Andrew
Colson, Renata Cumbee, Brianne Hackett, Josiah Lewis, and Marten Kronberg
(SARA REU) report:
We re-observed the field of GRB 090618 (Schady et al., GCN 9512) using the
0.9m SARA telescope at Kitt Peak National Observatory beginning 20 hours
after the trigger and continuing for 3 hours. Our observations consisted
of 45 sec exposures in the R and I bands under good conditions. The
afterglow is detected in stacked images. Magnitudes are given below as
compared to the USNOB.1 catalog. Time is given in days after the trigger;
exposure time in seconds.
Time Filter Exp Mag
------------------------------------
0.84 R 1215 19.4 +/- 0.1
0.86 I 1215 18.8 +/- 0.1
http://www.saraobservatory.org/