GCN Circular 8617

Subject

GRB 081203A: Skynet/GORT Detections

Event

Date

2008-12-05T01:15:13Z (18 years ago)

From

James Philip West at UNC/Chapel Hill <jpwest@uncg.edu>

J. P. West, K. McLin, T. Brennan, J. Haislip, D. Reichart, L. Cominsky, T.
Graves, G. Spear, K. Ivarsen, J. A. Crain, A. Foster, R. Holmes, A.
LaCluyze, M. Schubel, J. Styblova, A. Trotter, and E. Weaver report:

Skynet observed the localization of GRB 081203A (Parsons et al., GCN 8595Loading...
 
 )
with the 14" GORT telescope at Hume Observatory in California beginning 122
seconds after the trigger (101 seconds after notification) in RI.

Only five exposures were taken before morning twilight.  We detect the
afterglow (Parsons et al., GCN 8595Loading...
 
 ) in all five exposures.  Calibrated to
five USNO B1 stars, we find:

mean time
since trigger   exposure        filter          magnitude
(sec)           (sec)

134             20              I               12.79 +/- 0.02
235             40              R               12.60 +/- 0.01
345             40              I               11.58 +/- 0.01
476             80              R               12.51 +/- 0.01
625             80              I               12.02 +/- 0.01

[GCN OPS NOTE(05dec08): Per author's request, the "magnutude time" column label
was changed to "magnitude".]