{
  "bibcode": "2015GCN.18307....1M",
  "body": "E. Mazaeva (IKI), S. Schmalz (AIP), N. Tungalag (Research Center of Astronomy and Geophysics MAS), A. Volnova (IKI), I.Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:\n\nWe observed the field of GRB 150911A (Starling et al., GCN 18280) with ORI-40 telescope of Khureltogot observatory starting on Sep., 11 (UT) 19:03:00, i.e. ~23 minutes after the burst trigger. We do not detect any object within enhanced XRT error circle (Goad et al., GCN 18283). Photometry of the field is following\n\n\nDate UT start       t-T0   Filter Exp.  Upper_Limit (3sigma)\n                    (mid, days) (s)\n\n2015-09-11 19:03:00 0.0351 none   45*60 20.9\n\nPhotometry is base on nearby USNO-B.1 stars\nUSNO-B.1_id R2\n0957-0043966 15.54\n0957-0043954 16.24\n0957-0043961 16.45",
  "circularId": 18307,
  "createdOn": 1442215231000,
  "email": "alex@grb.rssi.ru",
  "subject": "GRB 150911A:   Khureltogot upper limit",
  "submitter": "Alexei Pozanenko at IKI  <alex@grb.rssi.ru>",
  "eventId": "GRB 150911A"
}