{
  "bibcode": "2016GCN.19498....1M",
  "body": "E. Mazaeva (IKI), A. Volnova  (IKI), R. Inasaridze (AbAO), V. Ayvazian \n(AbAO), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger\nGRB follow-up collaboration:\n\nWe observed the field of of the Swift  GRB 160601A (Kocevski et al., GCN \n19478) with AS-32 (0.7m) telescope of Abastumani Observatory starting on \nJune, 01 (UT) 19:07:28. We obtained several unfiltered images of the \nfield. In a combined image we detected both NOT sources (Malesani et \nal., GCN 19485). Preliminary photometry  of the optical afterglow (NOT \nsource #1,  Schulze et al., GCN 19488) are following\n\nDate        UT start   t-T0    Filter Exp.    OT         UpLim (3 sigma)\n                        (mid, days)     (s)\n\n2016-06-01  19:07:28   0.20169 CR     26*120  22.9+/-0.3 23.0\n\n\nPhotometry is based on nearby SDSS-DR9 stars, Lupton transformations \ninto R:\nSDSS-DR9_id            R(Lupton)\nJ153959.67+643325.7    16.72\nJ153956.37+643102.2    17.00\nJ153931.88+643247.0    17.02\nJ153927.50+643304.3    19.23\nJ153942.70+643016.4    16.27\nJ153948.64+643150.1    19.27\nJ153948.72+643220.0    19.86",
  "circularId": 19498,
  "createdOn": 1464977964000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 160601A: AbAO optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 160601A"
}