{
  "bibcode": "2020GCN.27694....1M",
  "body": "P. Minaev (IKI), I. Chelovekov (IKI), A. Pozanenko (IKI), S. Grebenev \n(IKI) report on behalf of GRB IKI FuN:\n\nWe analyzed publically available data of SPI-ACS detector onboard the \nINTEGRAL observatory. GRB 200422A (Hurley et al., GCN 27626; Gupta et \nal., GCN 27630; Svinkin et al., GCN 27635) did not trigger IBAS \n(http://ibas.iasf-milano.inaf.it/).\n\nThe GRB 200422A is detected in SPI-ACS data as very intense burst at \n(UTC) 2020-04-22T07:22:03.1. The T_90 duration of the burst is 12.3 +/- \n0.1 s in SPI-ACS. The fluence in 10-1000 keV energy band is 3.62e-4 \nerg/cm2 with statistical error of 5e-6 erg/cm2 (1.0e-4 ��� 1.2e-3 ergs/cm2 \nin the 95% confident region, including systematics)  as defined after \ncalibration based on long duration GRBs (Chelovekov et al., in \npreparation). We do not detect significant precursor in any 0.1 ��� 5 sec \ntime scale within 500 s prior to the trigger. Probable extended emission \nis detected up to 250 s after the trigger.\n\nThe light curve can be found at \nhttp://grb.rssi.ru/GRB200422A/GRB200422A_SPI-ACS_LC.png\n\nWe also put the spectral data of GRB 200422A reported  by Konus-Wind \n(Svinkin et al., GCN 27635) onto E_iso -- E_p diagram (AKA Amati \nrelation, see also Minaev et al., MNRAS, 492, 1919 (2020).\n\nA GRB 200422A trajectory of parameters E_iso,i -- E_p,i  along redshift \nrestricts the redshift of GRB 200422A  as 2 > z > 0.1, see figure at\n\nhttp://grb.rssi.ru/GRB200422A/GRB200422A_Ep-Eiso_diagram.png",
  "circularId": 27694,
  "createdOn": 1588784943000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 200422A: INTEGRAL observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 200422A"
}