Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to https://gcn.nasa.gov.
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 4474

Subject
GRB 060110a: RAPTOR detection of early optical emission.
Date
2006-01-10T19:55:23Z (18 years ago)
From
Przemyslaw R. Wozniak at LANL <wozniak@lanl.gov>
P.R. Wozniak, W.T. Vestrand, J. Wren, R. White, S. Evans
of Los Alamos National Laboratory report:

Our autonomous Raptor-S telescope responded to Swift trigger
176702 (Zane et al. GCN  4463) at 08:01:42.42 UT (6.8 seconds
after receiving the trigger).  We clearly detect a fading optical
source at the location of the IR counterpart identified by Bloom et al.
(GCN 4471).  The measurements show that the optical counterpart faded
from magnitude R=16.1+/-0.1 (5-second exposure) to about 17.5 over
the first ten minutes.  Our unfiltered magnitudes were calibrated
using R2 magnitudes of the field sources in USNO B1.0 catalog.
Looking for U.S. government information and services? Visit USA.gov