TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1586 SUBJECT: GRB021004: continued fading DATE: 02/10/06 03:47:34 GMT FROM: David Bersier at Harvard-Smithsonian-CfA D. Bersier, J. Winn, K.Z. Stanek (Harvard-Smithsonian Center for Astrophysics), P. Garnavich (Notre Dame) report: Images of the afterglow associated with GRB 021004 (GCN 1564) were obtained with the Fred L. Whipple Observatory 1.2m telescope on Oct. 6, 2:30 UT. The afterglow has resumed fading (GCN 1585), after having shown short time scale variability (GCN 1576, GCN 1578). We give below our last measurement from the night of Oct. 5 and our first measurement on Oct. 6 Date Time R err_R ----------------------------- Oct 5 12:11 UT 19.29 0.05 Oct 6 02:30 UT 19.92 0.10 This message may be cited.