TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1998 SUBJECT: GRB030329: Upper limits from recent and historical observations. DATE: 03/03/29 20:28:22 GMT FROM: Michael Wood-Vasey at UC Berkeley/LBNL/SNfactory GRB030329: Upper limits from recent and historical observations. W. M. Wood-Vasey, P. Nugent, and B. C. Lee, Lawrence Berkeley National Laboratory, using images obtained by R. Bambery, S. Pravdo, M. Hicks, and K. Lawrence (Near-Earth Asteroid Tracking project, Jet Propulsion Laboratory), report recent and historical upper limits for the optical transient for GRB 20030329 (GCN #1985, 1986, 1987) using the position of Uemura et. al (GCN #1949) from images taken with the Palomar Oschin 1.2-m and Haleakala MSSS 1.2-m telescopes during the previous two years: Limiting Unfiltered Mag UT Date ( @ S/N = 3) Telescope -------------------------------------------------------------------- 2001 Mar 13.60, 13.61 [ 17.58 Haleakala 2002 Jan 8.46, 8.47, 8.49 [ 20.31 Haleakala 2002 Jan 14.44, 14.45, 14.46 [ 20.26 Haleakala 2002 Jan 21.46, 21.47, 21.48 [ 21.66 Palomar 2002 Feb 3.54, 3.55, 3.57 [ 20.86 Palomar 2002 Feb 13.56, 13.57 [ 18.96 Palomar 2002 Apr 1.27, 1.29, 1.31 [ 21.57 Palomar 2003 Jan 18.50, 18.52, 18.54 [ 20.84 Palomar 2003 Feb 23.50, 23.51, 23.52 [ 20.54 Haleakala 2003 Mar 1.51, 1.52, 1.53 [ 19.89 Haleakala 2003 Mar 23.13, 23.15, 23.17 [ 21.61 Palomar Magnitudes are calibration against 300 USNO-A V1.0 R-band stars in the 0.25 sq. degree field of the images. A co-addition of these images shows nothing at this location to a combined limiting magnitude of 22.28 (S/N = 3). The co-addition is available at: http://supernova.lbl.gov/~wwoodvas/GRB/#GRB20030329 This message may be cited.