TITLE: GCN GRB OBSERVATION REPORT NUMBER: 558 SUBJECT: GRB 000115, BVRI field photometry DATE: 00/02/15 16:46:53 GMT FROM: Arne A. Henden at USNO/USRA A. Henden (USRA/USNO) reports on behalf of the USNO GRB team: We have acquired BVRcIc all-sky photometry for the field of GRB000115 with the USNOFS 1.0-m telescope on two photometric nights. This is a single 11x11arcmin field located towards the southeastern corner of the RXTE error box. We have placed the photometric data on our anonymous ftp site: ftp://ftp.nofs.navy.mil/pub/outgoing/aah/grb/grb000115.dat The astrometry in these files is based on linear plate solutions with respect to USNO-A2.0. The internal errors are less than 100mas. As no optical counterpart has been identified, only aperture photometry has been performed and the file does not go as faint as for previous fields.