{
  "bibcode": "2017GCN.22005....1S",
  "body": "D. Svinkin, S. Golenetskii, R. Aptekar, D. Frederiks, P. Oleynik,\nM. Ulanov, A. Tsvetkova, A. Lysenko, A.Kozlova, and T. Cline\non behalf of the Konus-Wind team, report:\n\nThe long-duration, very intense GRB 171011B\n(IPN triangulation: Hurley et al., GCN Circ. 21998)\ntriggered Konus-Wind at T0=3931.430 s UT (01:05:31.430).\n\nThe burst light curve shows a multipeaked structure\nwhich starts at ~T0-7.3 s and has a total duration of ~18.2 s.\nThe emission is seen up to ~20 MeV.\n\nThe Konus-Wind light curve of this GRB is available at\nhttp://www.ioffe.ru/LEA/GRBs/GRB171011_T03931/\n\nAs observed by Konus-Wind, the burst\nhad a fluence of 7.02(-0.56,+0.57)x10^-5 erg/cm2,\nand a 64-ms peak flux, measured from T0+1.456 s,\nof 5.55(-0.61,+0.62)x10^-5 erg/cm2/s\n(both in the 20 keV - 10 MeV energy range).\n\nThe time-averaged spectrum of the burst\n(measured from T0 to T0+10.496 s)\nis best fit in the 20 keV - 20 MeV range\nby the GRB (Band) model with the following parameters:\nthe low-energy photon index alpha = -0.54(-0.12,+0.14),\nthe high energy photon index beta = -2.28(-0.16,+0.12),\nthe peak energy Ep = 315(-33,+37) keV\n(chi2 = 98/97 dof).\n\nThe spectrum near the maximum count rate\n(measured from T0+0.256 to T0+1.792 s)\nis best fit in the 20 keV - 20 MeV range\nby the GRB (Band) model with the following parameters:\nthe low-energy photon index alpha = -0.51(-0.11,+0.14),\nthe high energy photon index beta = -2.59(-0.34,+0.21),\nthe peak energy Ep = 416(-48,+50) keV\n(chi2 = 78/65 dof).\n\nAll the quoted errors are at the 90% confidence level.\nAll the quoted values are preliminary.",
  "circularId": 22005,
  "createdOn": 1507814858000,
  "email": "svinkin@mail.ioffe.ru",
  "subject": "Konus-Wind observation of GRB 171011B",
  "submitter": "Dmitry Svinkin at Ioffe Institute  <svinkin@mail.ioffe.ru>",
  "eventId": "GRB 171011B"
}