{
  "format": "text/plain",
  "eventId": "GRB 261024D",
  "submitter": "Dmitry Svinkin at Ioffe Institute <svinkin@mail.ioffe.ru>",
  "createdOn": 1793976207906,
  "subject": "Konus-Wind detection of GRB 261024D",
  "eventType": [
    "GRB",
    "Gamma-ray Transient"
  ],
  "body": "D. Svinkin, D. Frederiks, A. Lysenko, V. Panteleeva, A. Ridnaia,\nA. Tsvetkova, M. Ulanov, and T. Cline\non behalf of the Konus-Wind team, report:\n\nThe long-duration GRB 261024D\n(AstroSat-CZTI detection: Goyal et al., GCN 46040;\nNuSTAR-ACS detection: Waratkar et al., GCN 46051;\nGlowbug detection: Cheung et al., GCN 46053;\nGECAM-B detection: Luo et al., GCN 46061;\nInsight-HXMT-HE detection: Luo et al., GCN 46065; \nIPN triangulation: Kozyrev et al., GCN 46094;\nSVOM-GRM detection: Luo et al., GCN 46111)\ntriggered Konus-Wind at T0=77582.529 s UT (21:33:02.529).\n\nThe burst light curve shows a multipeaked structure\nwhich starts at ~T0-0.6 s and has a total duration of ~11 s.\nThe emission is seen up to ~2 MeV.\n\nThe Konus-Wind light curve of this GRB is available at\nhttp://www.ioffe.ru/LEA/GRBs/GRB261024_T77582/\n\nAs observed by Konus-Wind, the burst\nhad the total fluence of 1.43(-0.06,+0.07)x10^-5 erg/cm2,\nand the 64-ms peak flux, measured from T0+1.664 s,\nof 4.92(-0.56,+0.56)x10^-6 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+14.592 s)\nis best fit in the 20 keV - 10 MeV range\nby the GRB (Band) model with the following parameters:\nthe low-energy photon index alpha = -0.76(-0.08,+0.08),\nthe high energy photon index beta = -3.44(-0.70,+0.32),\nthe peak energy Ep = 121(-4,+4) keV\n(chi2 = 115/97 dof).\n\nThe spectrum near the maximum count rate\n(measured from T0+0.256 to T0+6.400 s)\nis best fit in the 20 keV - 10 MeV range\nby the GRB (Band) model with the following parameters:\nthe low-energy photon index alpha = -0.52(-0.10,+0.11),\nthe high energy photon index beta = -2.92(-0.22,+0.16),\nthe peak energy Ep = 126(-5,+6) keV\n(chi2 = 72/77 dof).\n\nAll the quoted errors are at the 68% confidence level.\nAll the quoted values are preliminary.",
  "circularId": 46173,
  "submittedHow": "web"
}