{
  "bibcode": "2015GCN.17570....1M",
  "body": "E. Mazaeva (IKI), R. Inasaridze (AAO), Sh. Makandarashvili (AAO),   A. \nVolnova (IKI), Molotov (KIAM), A. Pozanenko (IKI) report on behalf of \nlarger GRB follow-up collaboration:\n\nWe observed the field of the Swift GRB 150309A (Cummings et al., GCN \n17553)  with AS-32 (0.7m) telescope of Abastumani Observatory starting \non Mar. 10 (UT) 01:40:54.  Within the enhanced XRT position (Osborne et \nal., GCN 17555) we do not detect any object. An upper limit is following\n\nDate       UT start   t-T0    Filter   Exp.     UL(3 sigma)\n                      (mid, days)        (s)\n\n2015-03-10 01:40:54  0.12699  None     19*120   21.2\n\nThe photometry is based on USNO-B1.0 star\n\nUSNO-B1.0_id  R2\n\n1764-0030460  15.42",
  "circularId": 17570,
  "createdOn": 1426184180000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 150309A: AAO optic upper limit",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 150309A"
}