{
  "bibcode": "2016GCN.19127....1E",
  "body": "L. Elenin (KIAM),  E. Mazaeva (IKI), A. Volnova (IKI), I. Molotov \n(KIAM), A. Pozanenko (IKI) report on behalf of larger GRB  follow-up \ncollaboration:\n\nWe observed the field of the Swift   GRB 160303A (Beardmore et al., GCN \n19126) with 0.4-m telescope of ISON-NM observatory starting on Mar., 03 \n(UT) 10:56:02, i.e. ~80 seconds after burst trigger. We obtained 30 \nunfiltered images of 30 s exposure. We do not detect any source within \nXRT error circle (Beardmore et al., GCN 19126)  both in the first image \nand in a combined image:\n\nUT start   t-T0         Exp.      Filter  UL (3sigma)\n          (mid.,days)    (s)\n10:56:02  0.00110        1*30    Clear   19.8\n10:56:02  0.00971       30*30    Clear   21.7\n\nThe photometry is based on nearby USNO-B1.0 stars",
  "circularId": 19127,
  "createdOn": 1457007037000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 160303A: ISON-NM early optical early limits",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 160303A"
}