{
  "bibcode": "2003GCN..2074....1C",
  "body": "M. Cantiello, M. Dolci (INAF - Obs. of Teramo), E. Maiorano (Univ. Bologna\n& IASF/CNR, Bologna), N. Masetti, E. Palazzi (IASF/CNR, Bologna), E.\nBrocato (INAF - Obs. of Teramo) report:\n \n\"We have obtained BVRI images of the OT (Peterson & Price, GCN 1985) of\nGRB030329 (Vanderspek et al., GCN 1997) with the 0.72-m TNT telescope of\nthe Astronomical Observatory of Teramo (Italy).\nThe average seeing was 4 arcsec.\n \nThe OT was well detected in all bands; we measure for it the following \nBVRI magnitudes using field stars calibrated by Henden (GCN 2023):\n\nmid-exposure      exptime    filter     mag     err\n time (UT)           (s)\n-------------------------------------------------------\n Apr. 1.824         1200        R       17.02    0.02\n Apr. 1.911         1800        V       17.53    0.03\n Apr. 1.966         2400        B       18.01    0.04\n Apr. 1.989         1200        I       16.70    0.03\n Apr. 2.055         1200        R       17.16    0.03\n \nThe comparison between the two R-band magnitude measurements shows that \nthe OT has possibly faded across our observing run.\n \nThis message is citeable.\"",
  "circularId": 2074,
  "createdOn": 1049302714000,
  "email": "maiorano@bo.iasf.cnr.it",
  "subject": "GRB030329: Optical observations at Teramo",
  "submitter": "Elisabetta Maiorano at U.of Bologna,Italy  <maiorano@bo.iasf.cnr.it>",
  "eventId": "GRB 030329"
}