{
  "circularId": 38485,
  "subject": "GRB 241114B: cubesat Avion detection",
  "format": "text/plain",
  "body": "A. Bogomolov, V. Bogomolov, A. Iyudin, S. Svertilov, N. Vasiliev \non behalf of the MSU “Sozvezdie-270” team, report:\n\nAt 2024-11-14 ~11:05:04 UT the long-duration GRB 241114B (Insight-HXMT/HE detection: GCN #38284; Konus-Wind detection: GCN #38398) was detected by the DeCoR-1 and DeCoR-3 instruments on the cubesat Avion of the Moscow University project “Constellation-270” [1].\n  \nTotal amount of photons detected by Avion is 220 (DeCoR-1, energy band 40-500 keV) and ~145 (DeCoR-3, >30 keV), it corresponds to a fluence of ~9*10^(-7) erg/cm^2 in the range 40-500 keV.\n\nLC in the energy range of 40-500 keV has three main episodes with a maximum flux of ~1.2 phot/(cm^2*s) in the 1st peak with a duration of ~6 s, ~2.7 phot/(cm^2*s) in the 2nd peak with a duration of 2 s and 7.7 phot/(cm^2*s) in the 3rd peak with a duration of 2.5 s.\nА total duration (T90) of the burst in ~25 s.\n\nThe light curve obtained by Avion is available here:\nhttps://swx.sinp.msu.ru/models/grb_cat/data/pictures/2024_11_14_Avion_LC_s.png\n\nParameters of GRB 241114B as well as 22 other GRBs detected by Moscow University cubesats are listed at: https://swx.sinp.msu.ru/models/grb_cat/grb.php?lang=en\n\nAvion is one of 5 cubesats of the Moscow University project “Constellation-270” [1] launched on 2023 June 27. The payload of Avion is a set of scintillation gamma-ray detectors DeCoR [2], the energy range is >30 keV, the time resolution is 0.5s. \n\n[1] Svertilov et al. 2023  https://link.springer.com/chapter/10.1007/978-3-031-50248-4_21\n[2] Bogomolov et al. 2022 Universe 8, 282 https://www.mdpi.com/2218-1997/8/5/282\n\n",
  "submitter": "Andrey Bogomolov at Moscow State University <aabboogg@srd.sinp.msu.ru>",
  "eventId": "GRB 241114B",
  "createdOn": 1733732812789,
  "submittedHow": "web",
  "bibcode": "2024GCN.38485....1B"
}