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

GCN Circular 6977

GRB071010b: optical observation
2007-10-22T18:22:00Z (17 years ago)
Alexei Pozanenko at IKI, Moscow <>
V. Rumyantsev (CrAO),   A. Pozanenko (IKI) report on behalf of larger GRB 
follow-up collaboration:

We observed the optical afterglow (Oksanen GCN 6873, Kann et al. GCN 6884) 
of  GRB071010b  (Markwardt  et al., GCN 6871) in R-band on Oct.19 between 
(UT) 01:39:50 - 02:54:14  with Zeiss-1000 (Simeiz) telescope of CrAO 
observatory.  Based on  USNO-A2.0 star RA (J2000) = 10 01 59.67, Dec. 
(J2000) = +45 46 12.80, R=18.30 we estimated brightness of  the optical 

T0+,       Exposure,   R_mag,   err
(mid time)

8.230 d    58x60 s     21.9     +0.37 -0.27

The message may be cited.
Looking for U.S. government information and services? Visit