{
  "bibcode": "2003GCN..2111....1S",
  "body": "E. Semkov (Institute of Astronomy, Sofia, Bulgaria) report:\n \nThe afterglow of the HETE burst (H2652) GRB 030329 (Peterson & Price, \nGCN 1985; Torii: GCN 1986) was observed with the 50/70 cm Schmidt \ntelescope of the National Observatory Rozhen (Bulgaria) on 2, 3 and 3 \nApril, Rc filter, 5 x 300 sec coo-added exposures.\nThe observations were carried out under good seeing conditions. Using \nfield photometry of Henden (GCN2082) we estimate the brightness of the \noptical afterglow in Rc band as follows.\n\n2.04 (UT 21.3) R=17.66  +/-0.09\n3.04 (UT 20.2) R=17.73  +/-0.11\n4.04 (UT 19.5) R=18.11  +/-0.18\n\nThis message may be cited.",
  "circularId": 2111,
  "createdOn": 1049724917000,
  "email": "evgeni@skyarchive.org",
  "subject": "GRB 030329 Optical observations",
  "submitter": "Evgeni Semkov at Inst.of Astronomy,Bulgaria  <evgeni@skyarchive.org>",
  "eventId": "GRB 030329"
}