TITLE: GCN GRB OBSERVATION REPORT NUMBER: 334 SUBJECT: radio detection of X-ray/GRB transient DATE: 99/05/20 22:55:34 GMT FROM: Dale A. Frail at NRAO D. A. Frail (NRAO), S. R. Kulkarni (Caltech) and C. H. Young (MSU, NRAO) report: "On 1999 May 20.69 UT we carried out VLA observations at 4.8 GHz of the fast X-ray transient detected by BeppoSAX (GCN 333). There is only one radio source detected in the 3-arcminute error circle. Its position is (equinox 2000) R.A.=8 36 0.7 (+/-0.1s), decl.=+51 17 8.4 (+/-1"). There is no source at this position in the 1.4 GHz NRAO VLA Sky Survey taken in 1993 November. Further VLA observations are underway to determine whether this source is related to the X-ray transient. This message is citeable."