{
  "bibcode": "2017GCN.22193....1V",
  "body": "A. Volnova (IKI), A. Pozanenko (IKI),  E. Mazaeva (IKI),  M. Krugov \n(AFIF) report on behalf of IKI-GW follow-up collaboration:\n\nWe observed the field of GRB 171205A (D'Elia et al., GCN 22177)   with \nRC-1000 1m telescope of CHILESCOPE observatory. The observations carried \nout in a clear filter starting on Dec. 06 (UT) 06:46:47. The afterglow \nof GRB 171205A (e.g.  Osborne et al., GCN 22179;  Izzo et al., GCN \n22180; Emery et al., GCN 22181) is clearly detected.  Preliminary \nphotometry is following.\n\nDate       UT start   t-T0    Filter Exp.    OT     Err.\n                       (mid, days)     (s)\n\n2017-12-06 06:46:47  1.00122  CR     3600    18.20  0.07\n\n\nThe photometry is based on several nearby USNO-B1.0 stars (R2 magnitudes).\n\nUSNO-B1.0      RA          Dec         R2\n0774-0291882  11:09:46.28 -12:35:02.8  17.25\n0773-0296803  11:09:34.42 -12:37:07.2  16.58\n0774-0291827  11:09:37.14 -12:32:33.8  16.45\n0774-0291826  11:09:36.63 -12:34:12.4  16.40\n0774-0291864  11:09:43.12 -12:33:49.8  16.30\n0774-0291938  11:09:56.38 -12:35:37.7  16.40\n0773-0296901  11:09:57.46 -12:36:29.0  15.34\n\nFinding chart can be found at\nhttp://grb.rssi.ru/GRB171205A/GRB171205_RC1000-171206.png",
  "circularId": 22193,
  "createdOn": 1512593830000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 171205A: CHILESCOPE optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 171205A"
}