TITLE: GCN GRB OBSERVATION REPORT NUMBER: 4828 SUBJECT: GRB 060218: Refined analysis of the radio afterglow DATE: 06/02/24 23:31:34 GMT FROM: Dale A. Frail at NRAO Alicia M. Soderberg (Caltech) and Dale A. Frail (NRAO) report on behalf of a larger collaboration: "Using additional data we have been able to obtain a flux calibration of the radio afterglow detected with the VLA on February 20.01 UT (GCN 4794). At 8.46 GHz the peak flux density was 453 +/- 77 microJy at a position (epoch J2000) of R.A.=03:21:39.683, dec.+16:52:01.82, with conservative errors of +/-0.06 arcsec. Further observations are planned. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc."