TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1478 SUBJECT: GRB020813, astrometric position DATE: 02/08/13 16:29:56 GMT FROM: Arne A. Henden at USNO/USRA A. Henden (USRA/USNO) and H. Guetter (USNO), on behalf of the USNO GRB Team, report: We have imaged the field of GRB020813 (GCN 1471), containing the afterglow candidate reported by Fox et al. (GCN 1470). Two Ic-band exposures were made with the USNO 1.55m Strand astrometric telescope, centered at 020813.2974 UT. Rhoads et al. (GCN 1474) reported coordinates using USNO-A2.0; we have independently derived the position of the afterglow candidate using the UCAC2 astrometric catalog. Our position is: 19:46:41.874 -19:36:04.81 (J2000) with an estimated uncertainty of under 50mas in each coordinate. The 1.0m telescope is undergoing repairs, but should be available starting UT 020815. Our intention is to calibrate this field at UBVRI shortly after this date unless other calibration is published in the interim.