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GCN Circular 9529

GRB 090618: SARA observations
2009-06-18T23:00:02Z (15 years ago)
Adria C. Updike at Clemson U <>
Adria Updike, Sean Brittain, Dieter Hartmann (Clemson University), Andrew
Colson, Renata Cumbee, Brianne Hackett, Josiah Lewis, and Marten Kronberg
(SARA REU) report:

We observed the field of GRB 090618 (Schady et al., GCN 9512) using the
0.9m SARA telescope at Kitt Peak National Observatory beginning 1.5 hours
after the trigger and continuing for 2 hours.  Our observations consisted
of 45 sec exposures in the I and R bands.  The afterglow was detected in
every image.  Magnitudes are given below as compared to the USNOB.1
catalog.  Time is given in seconds after the trigger; exposure time in

Time   Filter   Exp      Mag
5400     I      45     16.2 +/- 0.05
6300     R      45     16.8 +/- 0.05

Further observations are planned.
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