{
  "bibcode": "2002GCN..1265....1J",
  "body": "M. Jelinek, P. Kubanek, M. Nekola, R. Hudec & BART team,\nAstronomical Institute, Academy of Sciences of the Czech Republic,\nOndrejov, report:\n\nThe BART robotic telescope at the Ondrejov Observatory observed\nthe error box of the GRB020305 (HETE trigger 1939) at March\n5.93249 UT i.e. 10.45 hours after the burst.\n\nObservation was done by two different cameras in six groups\nof eleven (pairs of) images, with 120s exposures. Every\ngroup of images took approx. 35 minutes (0.02430d) to\nobtain. Series were beginning at: 2002 March 5.93249, 5.96767,\n6.01779, 6.06597, 6.11422 and 6.16356 UT.\n\nThe observing conditions were not optimal due to some sort\nof cirrus on the sky.\n\nNo new optical object was found in reported error box.\n\nFollowing magnitude limits were obtained:\n\nWide Field Camera (D=64mm, f/1.7), unfiltered, full HETE error\nbox coverage, gives single image limiting magnitude 14.5 in 2 minute\nintegration.\n\nNarrow Field Camera (D=254mm, f/6.3), Johnson R-band,\nsingle-image limiting magnitude 17.0, when combining all 66\nobtained NF images there is a  limiting magnitude of\n18.5 with effective integration time of 132 min. The Narrow Field\nCamera FOV is  20 x 20 arcmin (~ 20% of the HETE and ~50%\nof the combined HETE/IPN error box)\ncentered approx 7 arcmin to the west and 4 arcmin to the\nsouth from the center of the HETE reported position (the image\ncenter has RA12:42:30, DEC -14:37).\n\nFurther image analysis is planned.",
  "circularId": 1265,
  "createdOn": 1015710049000,
  "email": "rhudec@asu.cas.cz",
  "subject": "GRB020305, optical observations",
  "submitter": "Rene Hudec at AIO  <rhudec@asu.cas.cz>",
  "eventId": "GRB 020305"
}