Date: Sun, 6 Oct 2002 08:16:59 +0200 From: "B Monard" <BMonard@mweb.co.za> Subject: GRB021004 follow up at Bronberg Hi, last night under much better observing conditions, GRB021004 was detected again at the Bronberg observatory. The GRB has faded over one magnitude CR since the previous observation, about 24 hours earlier. An image was composed by stacking 10 individual images, taken around the time 20021005.824 UT. The limiting magnitude of this image is well beyound 20.0 CR, based on the USNO-A2.0 R magnitudes. Astrometry on the new (better quality) image with reference to the USNO-A2.0 frame (as was also the case with the initial image) showed the GRB counterpart at position (2000) 00 26 54.727 +18 55 44.13 The following are details of the follow up observation at the Bronberg observatory Bronberg observatory / CBA Pretoria observer: Berto Monard MLF, Pretoria, South Africa location: -25 54' 48", 2826' 44"E, altitude 1590m instrumentation: LX200 12" f/4.2 with ST-7E, unfiltered conditions: good wind The reported CR magnitude results from differential photometry to many comparison stars with R magnitudes from USNO-A2.0. GRB021004 20021005.824 UT 189CR (decimal point omitted)