{
  "bibcode": "2003GCN..2122....1C",
  "body": "S. Covino, G. Ghisellini (INAF, Brera, I); D. Malesani (SISSA, Ts, I);\nP.A. Price (Caltech, USA); D. Lazzati, E.M. Rossi (IoA, Cambridge, UK);\nG. Chincarini, G. Tagliaferri, F.M. Zerbi (INAF, Brera, I); S. Di\nSerego, M. Della Valle, A. Cimatti (INAF, Arcetri, I); F. Fiore, G.L.\nIsrael, L. Stella (INAF, Roma, I); M. Vietri (Roma 3, Univ, I); N. Kawai\n(RICHEN, Japan); G.R. Ricker (MIT, USA); E. Le Floc'h, P. Goldoni, I.F.\nMirabel (CEA, Sacley, F); S. Mereghetti (IASF, Mi, I); E. Costa, P.\nSoffitta (IASF, Roma, I); S. Ortolani (Padova Univ., Italy); A. Kaufer,\nA. Lopez, P.M. Vreeswijk, P. Vaisanen, A.O. Jaunsen (ESO);\n\nreport:\n\nStarting on 2003 April 2.1, we observed the optical counterpart\n(Peterson & Price, GCN 1985; Torii, GCN 1986) of GRB 030329 (Vanderspek\net al., GCN 1997). The observations were performed with the ESO VLT-UT1\n(Antu) telescope equipped with FORS1, in spectropolarimetric mode.\nSeveral acquisition images were taken, under photometric sky conditions;\nhere we report the V-band magnitudes of the OT, based on Henden's\ncalibration (GCN 2023). Seeing was ~1\".\n\n\nUT         t-t0 (days)  V mag     err\n---------------------------------------\nApr 2.089  2.605        17.652 +- 0.015\nApr 2.128  2.644        17.696 +- 0.014\nApr 2.166  2.682        17.738 +- 0.015\n\n\nThe complete analysis of the spectropolarimetric dataset is underway.\n\nWe thank the ESO staff at Paranal for their kind and reliable\nassistance.\n\nThis message may be cited.",
  "circularId": 2122,
  "createdOn": 1049888955000,
  "email": "malesani@sissa.it",
  "subject": "GRB 030329: VLT V-band photometry",
  "submitter": "Daniele Malesani at SISSA-ISAS,Trieste,Italy  <malesani@sissa.it>",
  "eventId": "GRB 030329"
}