TITLE: GCN GRB OBSERVATION REPORT NUMBER: 800 SUBJECT: GRB 000911, BVRI field photometry DATE: 00/09/27 18:21:28 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 with the USNOFS 1.0-m telescope for an 11x11 arcmin field that is centered on the optical transient discovered by Berger, et al. (GCN 795). The photometric data is based on three photometric nights, but with poor seeing. Stars brighter than V=14.5 are saturated and should be used with care. We have performed an initial deletion of galaxies from the dataset, but do not guarantee that all objects in this file are stellar. We have placed the photometric data on our anonymous ftp site: ftp://ftp.nofs.navy.mil/pub/outgoing/aah/grb/grb000911.dat The astrometry in this file is based on linear plate solutions with respect to USNO-A2.0. The internal errors are less than 100mas.