{
  "bibcode": "2023GCN.33341....1S",
  "body": "P. Shetty (IITB), P K. Navaneeth (IUCAA), G. Waratkar (IITB), M. Dixit \n(IITB), A. Vibhute (IUCAA), V. Bhalerao (IITB), D. Bhattacharya (Ashoka \nUniversity/IUCAA), A. R. Rao (IUCAA/TIFR), and S. Vadawale (PRL) report \non behalf of the AstroSat CZTI collaboration:\n\nAnalysis of AstroSat CZTI data with the CIFT framework (Sharma et al., \n2021, JApA, 42, 73) showed the detection of a long GRB 230216B which was \nalso detected by CALET-GBM (GCN Notice. 1360609287).\n\nThe source was clearly detected in the 20-200 keV energy range. The \nlight curve peaks at 2023-02-16 19:03:30 UTC. The measured peak count \nrate associated with the burst is 319.5 (+96.6 -57.1) counts/s above the \nbackground in the combined data of all four quadrants, with a total of \n634 (+222 -225) counts. The local mean background count rate was 405.3 \n(+3.9 -5.0) counts/s. Using cumulative rates, we measure a T90 of 5.85 \n(+3.85 -2.20) s.\n\nIt was also clearly detected in the CsI anticoincidence (Veto) detector \nin the 100-500 keV energy range.\n\nCZTI GRB detections are reported regularly on the payload site at \nhttp://astrosat.iucaa.in/czti/?q=grb. CZTI is built by a TIFR-led \nconsortium of institutes across India, including VSSC, URSC, IUCAA, SAC, \nand PRL. The Indian Space Research Organisation funded, managed, and \nfacilitated the project.\n\nLinks:\n------\n[1] http://astrosat.iucaa.in/czti/?q=grb",
  "circularId": 33341,
  "createdOn": 1676703351000,
  "email": "gauravwaratkar@iitb.ac.in",
  "subject": "GRB 230216B: AstroSat CZTI detection",
  "submitter": "Gaurav Waratkar at IIT,Bombay  <gauravwaratkar@iitb.ac.in>",
  "eventId": "GRB 230216B"
}