{
  "bibcode": "2003GCN..2075....1Z",
  "body": "S. Zharikov (OAN SPM, IA UNAM, Mexico), E. Benitez, J. Torrealba, J.\nStepanian (IA UNAM, Mexico) report:\n\nWe have observed the GRB030329 OT with 1.5m and 2.1m\ntelescopes of SPM Observatory, BC, Mexico. A set of exposures in UBVRI\nBessel filters was obtained with 1.5m telescope under photometric\nconditions. Standard stars RU 149  from Landolt's catalogue\nwere used for photometric calibrations.\nThe results of photometry are following:\n 31 March   U      B     V     R      I\nUT 7:00   16.62\nUT 7:13         17.27\nUT 7.16                16.90\nUT 7:21                      16.46\nUT 7:26                             16.11\nUT 7:31  16:65\nUT 7:37        17.28\nUT 7:43               16.84\nUT 7:49                     16.08\nUT 7:54                             16.05\nUT 8:48  16.58\nUT 8:54        17.30\nUT 8:59               16.92\nUT 9:05                     16.51\nUT 9:11                            16.11\nUT10:08  16:59\nUT10:13       17.27\nUT10:19              16.83\nUT10:60                    16:60\nUT10:31                           16:22\nErrors are about 0.03.\n\nSpectrum of the optical afterglow of GRB 030329 were obtained at the \nsame night with the 2.1-m telescope and B&Ch spectrograph (600l/mm).\nThe spectra cover the wavelength range of 6100 to 8200 AA with a\nresolution of about 2.2A/pix.\nThe spectral data analysis is in progress.\n\nThis message may be cited.",
  "circularId": 2075,
  "createdOn": 1049324914000,
  "email": "zhar@astrosen.unam.mx",
  "subject": "GRB 030329 , SPM optical observations",
  "submitter": "Sergej Zharikov at OAN IA UNAM  <zhar@astrosen.unam.mx>",
  "eventId": "GRB 030329"
}