GCN Circular 9926
Subject
GRB 090726: Skynet/GORT Observations
Date
2009-09-19T20:44:14Z (15 years ago)
From
Josh Haislip at U.North Carolina <haislip@physics.unc.edu>
J. Haislip, D. Reichart, L. Cominsky, K. McLin, T. Graves, G. Spear, K.
Ivarsen, A. LaCluyze, A. Foster, J. Moore, A. Oza, M. Schubel, J. Styblova,
A. Trotter, J. A. Crain, and M. Nysewander report:
Skynet observed the Skynet/BAT localization of GRB 090726 (Page et al., GCN
9706) with the 14" GORT telescope at Hume Observatory in California
beginning 5.9 hours after the the trigger in I.
We do not detect the afterglow (Page et al., GCN 9707; Moskvitin,
Fatkhullin & Valeev, GCN 9709). Stacking only images that increase the
limiting magnitude yields:
mean 1-sig. 1-sig.
time 3-sig. sys. stat.
since lim. cal. cal. cal.
trig. tel. exp. fil. mag. stars unc. unc.
(h) (# x s) (mag) (mag)
6.2 GORT 15 x 80 I 19.8 84 USNO B1 0.213 0.002
6.8 GORT 8 x 80 R 20.2 178 USNO B1 0.235 0.001