{
  "bibcode": "2003GCN..1991....1R",
  "body": "V.Rumyantsev (CrAO), V.Biryukov(SAI) and A.Pozanenko (IKI) report:\n\nWe have obtained 44 unfiltered exposures (120-s each) of the GRB 030228\nerror box (HETE Trigger #2650). The images were taken with the AT-64\ntelescope of  Crimean Astrophysical observatory and cover the period \n(UT) 18:46 - 23:07  March 28, 2003.  We used CCD SBIG ST-8 with \nmaximum of sensitivity in the red spectral band.\n\n In a co-added image the OT is visible at the position of reported by B.A.\nPeterson and P.A. Price (GCN 1974).  The brightness was estimated in \nrespect to the star B (GCN 1982) as R = 20.9 +/- 0.2.\n\n     Start time       exposure          OT\nMarch 28 18:46  44x120 s     20.9 +- 0.2\n\nDetailed calibration is underway.\nThe image is available at http://grb.rssi.ru/GRB030228\n\nThis message can be cited.",
  "circularId": 1991,
  "createdOn": 1048951917000,
  "email": "rum@crao.crimea.ua",
  "subject": "GRB 030328: Optical observations",
  "submitter": "Vasilij Rumjantsev at CrAO  <rum@crao.crimea.ua>",
  "eventId": "GRB 030328"
}