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TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2122 SUBJECT: GRB 030329: VLT V-band photometry DATE: 03/04/09 11:49:15 GMT FROM: Daniele Malesani at SISSA-ISAS,Trieste,Italy <malesani@sissa.it> S. Covino, G. Ghisellini (INAF, Brera, I); D. Malesani (SISSA, Ts, I); P.A. Price (Caltech, USA); D. Lazzati, E.M. Rossi (IoA, Cambridge, UK); G. Chincarini, G. Tagliaferri, F.M. Zerbi (INAF, Brera, I); S. Di Serego, M. Della Valle, A. Cimatti (INAF, Arcetri, I); F. Fiore, G.L. Israel, L. Stella (INAF, Roma, I); M. Vietri (Roma 3, Univ, I); N. Kawai (RICHEN, Japan); G.R. Ricker (MIT, USA); E. Le Floc'h, P. Goldoni, I.F. Mirabel (CEA, Sacley, F); S. Mereghetti (IASF, Mi, I); E. Costa, P. Soffitta (IASF, Roma, I); S. Ortolani (Padova Univ., Italy); A. Kaufer, A. Lopez, P.M. Vreeswijk, P. Vaisanen, A.O. Jaunsen (ESO); report: Starting on 2003 April 2.1, we observed the optical counterpart (Peterson & Price, GCN 1985; Torii, GCN 1986) of GRB 030329 (Vanderspek et al., GCN 1997). The observations were performed with the ESO VLT-UT1 (Antu) telescope equipped with FORS1, in spectropolarimetric mode. Several acquisition images were taken, under photometric sky conditions; here we report the V-band magnitudes of the OT, based on Henden's calibration (GCN 2023). Seeing was ~1". UT t-t0 (days) V mag err --------------------------------------- Apr 2.089 2.605 17.652 +- 0.015 Apr 2.128 2.644 17.696 +- 0.014 Apr 2.166 2.682 17.738 +- 0.015 The complete analysis of the spectropolarimetric dataset is underway. We thank the ESO staff at Paranal for their kind and reliable assistance. This message may be cited.
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