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

GCN Circular 6418

GRB070518: OSN observation
2007-05-19T01:04:27Z (17 years ago)
Martin Jelinek at Inst.Astrophys.Andalucia,Granada <>
Martin Jelinek, Alberto J. Castro-Tirado, Victor Casanova,
Javier Gorosabel, Antonio de Ugarte Postigo, Stanislav Vitek,
Ronan Cunniffe and Petr Kubanek (IAA CSIC Granada, Spain)


We observed the optical afterglow of GRB070518 (Guidorzi et
al, GCN6415) with a 1.5m telescope at Observatorio Sierra
Nevada using R and I-band filters. The afterglow is found to
have R~22.2, relatively to the nearby USNO-A2.0 (R_usno=18.7)
on a 60-minute combined image with exposure mean time 23:04UT
(i.e. 8.6h after the GRB). 

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