{
  "bibcode": "2015GCN.18319....1V",
  "body": "A. Volnova (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Kusakin \n(Fesenkov Astrophysical Institute), E. Mazaeva (IKI),  A. Pozanenko \n(IKI) report on behalf of larger GRB follow-up collaboration:\n\nWe observed the field of GRB 150910A (Pagani et al., GCN  18264)  with \nZeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory on \nSep. 11 and Sep. 12.  We obtained several images in R filter.  The \nafterglow  (Pagani et al., GCN 18264; Zheng & Filippenko, GCN 18265) is \nclearly visible in a combined image on Sep. 11 and on Sep. 12 we \nobtained upper limit.  The photometry of the combined images are following\n\nDate       UT start    t-T0     Filter  Exp.     OT       Err\n                        (mid, days)      (s)\n\n2015-09-11 18:39:41    1.38753  R       16*300   21.87    0.10\n2015-09-12 19:03:44    2.39553  R       21*300   >22.3   (3 sigma)\n\nThe photometry is based on SDSS stars used in GCN 18281 (Mazaeva et al.)",
  "circularId": 18319,
  "createdOn": 1442403317000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 150910A: TSHAO optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 150910A"
}