{
  "bibcode": "2003GCN..2141....1T",
  "body": "V. Testa, G. Cocozza, A. Melandri, L.A. Antonelli (INAF-Roma, I), \nD. Malesani (SISSA, Trieste, I), A. Buzzoni, S. Di Tomaso, D. Fugazza,\nF. Ghinassi, J.C. Guerra (INAF-TNG), S. Covino (INAF-Merate, I), N. Masetti \n(IASF-CNR, Bologna, I), E. Pian (INAF-Trieste, I) on behalf of a \nlarger Italian collaboration, report:\n  \n\"We have obtained VR images of the afterglow (Peterson & Price, GCN\n1985) of GRB 030329 (Vanderspek et al., GCN 1997), with the Italian 3.6m \nTNG equipped with DOLORES. Observations were performed on Apr. 10,11 and \n14; seeing in the R band was 1.0 arcsec during the first night, 1.2 arcsec \nduring the second night, and 1.3 arcsec during the last night. \nThe afterglow was detected in both bands with S/N(R,peak) = 43 (first \nnight), 37 (second night) and 23 (third night). During the second and \nthird nights measurements have been affected by a bright sky background, \nlikely due to the moon being relatively close to the target (21 and 24 \ndegrees respectively).\n\nWe measured the following VR magnitudes, with respect to the calibration \nperformed by Henden (GCN 2082):\n  \n   Obs._date(UT) t_exp(s)  Filt.  Mag    Err(Mag)\n   ----------------------------------------------\n   10/4 21:38:37  240       V     19.72  0.05\n   10/4 21:31:28  240       R     19.34  0.05\n  \n   11/4 21:35:49  240       V     19.68  0.11\n   11/4 22:04:56  240       R     19.45  0.09\n  \n   14/4 20:33:01  240       V     20.10  0.12\n   14/4 20:48:30  240       R     19.71  0.11 \n \nAll TNG measurements are consistent with a continuosly fading transient. \n \nThis message can be cited.\"\n\n[GCN OPS NOTE (07Nov03): The INAF-TNG author list was changed from\n\"F. Ghinassi, D. Fugazza, S. Di Tomaso (INAF-TNG)\" to\n\"A. Buzzoni, S. Di Tomaso, D. Fugazza, F. Ghinassi, J.C. Guerra (INAF-TNG)\".]",
  "circularId": 2141,
  "createdOn": 1050496431000,
  "email": "angelo@coma.mporzio.astro.it",
  "subject": "GRB030329: VR Photometry at TNG",
  "submitter": "Angelo Antonelli at Obs. Astro. di Roma  <angelo@coma.mporzio.astro.it>",
  "eventId": "GRB 030329"
}