{
  "bibcode": "2010GCN.11012....1E",
  "body": "L. Elenin (ISON), I. Molotov (ISON), A. Pozanenko (IKI)  report on behalf of \nlarger GRB  follow-up collaboration:\n\nWe observed the field of the Swift GRB 100728B (Page et al. GCN  11009) with \n0.45-m astrograph f/2.8 �f ISON-NM observatory (32d 54' 11.64'',  105d 31' \n42. 34'' ) starting July 28 (UT) 10:56:08, i.e. 24 minutes after burst \nonset.  A few unfiltered 300s exposures were taken before down. In a first \nexposures we clearly detect the afterglow at the position (J2000) RA= 02 56 \n13.48 Dec= +00 16 51.4 which  coincides with early afterglow detection \n(Perley et al. GCN  11007; Page et al. GCN  11009).\n\nA preliminary photometry of unfiltered exposures against USNO-B1.0 field \nstars (R-filter) at 29.3 minutes after burst is 19m.",
  "circularId": 11012,
  "createdOn": 1280319208000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 100728B: optical detection",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 100728B"
}