Skip to main content
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 3671

GRB 050724: RTT150 optical observations
2005-07-24T22:40:13Z (19 years ago)
Rodion Burenin at IKI, Moscow <>
R. Burenin, M. Pavlinsky, R. Sunyaev (IKI), 
I. Khamitov, Z. Aslan (TUG), U. Kiziloglu (METU), A. Alpar (SabUni), 
I. Bikmaev, N. Sakhibullin (KSU/AST)


We observed the error box of GRB 050724 (Covino et al., GCN 3665) with
Russian-Turkish 1.5-m telescope (RTT150, Bakyrlytepe, TUBITAK National
Observatory, Turkey). We made a set of 600s exposures in R, starting at
18:11 UT, July 24, i.e. approximately 5.6 hours after the burst.
Observations were made at very high zenith distance (65-75 degrees) and
in poor seeing conditions (~2 arcsec).

We found no variable sources brighter than our limiting magnitude, which
is only slightly deeper than DSS.

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