GCN Circular 7486
Subject
GRB 080319B: Gemini-South photometry
Date
2008-03-20T14:26:36Z (16 years ago)
From
Daniel Perley at U.C. Berkeley <dperley@astro.berkeley.edu>
D. A. Perley, J. S. Bloom (UC Berkeley) and H.-W. Chen (U Chicago) report:
On the night of 2008-03-20 (UT) we observed the optical afterglow of GRB
080319B (GCN 7427, Racusin et al.) with Gemini-South + GMOS in g, r, i,
and z filters (4x180s in each filter). The source is well-detected in
all bands. Magnitudes, calibrated to SDSS DR6, are:
UTstart UTend t(hr) filt mag err
06:52:17 07:10:19 24.808 g 20.95 0.09
07:11:19 07:26:11 25.099 r 20.55 0.03
07:27:10 07:42:04 25.363 i 20.40 0.05
07:43:04 07:57:55 25.686 z 20.32 0.03
We thank the observing staff for performing these observations.