{
  "bibcode": "2003GCN..2245....1Z",
  "body": "S. Zharikov(OAN IA UNAM), V. Chavushyan, R. Mujica (INAOE) report:\n\nWe have observed the OT GRB030329 found by B.Peterson and P.Price (GCN \n1985) using the 2.1m telescope of the \"Guillermo Haro\" Observatory in \nCananea, Sonora, Mexico with the Landessternwarte Faint Object \nSpectrograph and Camera (LFOSC). \nThe I image was obtained on April 26 with  time of exposure 1200s.\nSeveral R band images with time of exposure 1800s were obtained on April\n28,30 and May 2,5,6 and 8 under good photometric conditions. Based on\nfiled photometry by A. Henden (GCN 2082) we estimate of OT magnitudes:\n\nDate        Time(UT)      Band       Magnitude\n---------------------------------------------- \nApril 26      03:21         I         20.02(10)\nApril 28      03:20         R         20.49(7) \nApril 30      03:24         R         20.60(8) \nMay   2       03:28         R         20.64(8)\nMay   5       03:55         R         20.90(12) \nMay   6       03:09         R         20.90(12) \nMay   8       03:43         R         20.88(11)\n\nThis message may be cited.",
  "circularId": 2245,
  "createdOn": 1053933188000,
  "email": "zhar@astrosen.unam.mx",
  "subject": "GRB030329, Optical observations",
  "submitter": "Sergej Zharikov at OAN IA UNAM  <zhar@astrosen.unam.mx>",
  "eventId": "GRB 030329"
}