{
  "bibcode": "2021GCN.29749....1S",
  "body": "P. Sawant (IUCAA), G. Waratkar (IITB), A. Vibhute (IUCAA), S. Gupta\n(IUCAA), V. Bhalerao (IITB), D. Bhattacharya (IUCAA), A. R. Rao\n(IUCAA/TIFR), and S. Vadawale (PRL) report on behalf of the AstroSat CZTI\ncollaboration:\n\nAnalysis of AstroSat CZTI data with the CIFT framework (Sharma et al, 2020,\narxiv:2011.07067) showed detection of a long GRB 210330A, which was also\ndetected by GECAM (GCN #29736).\n\nThe source was clearly detected in the 20-200 keV energy range. The light\ncurve showed multiple peaks of emission with the strongest peak at\n2021-03-30 12:45:46.50 UT. The measured peak count rate associated with the\nburst is 262 (+45, -46) cts/s above the background in the combined data of\nfour quadrants, with a total 1367 (+248, -267) cts. The local mean\nbackground count rate was 510 (+3, -3) cts/s. Using cumulative rates, we\nmeasure a T90 of 13 (+2, -7) s.\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, ISAC, IUCAA, SAC and\nPRL. The Indian Space Research Organisation funded, managed and facilitated\nthe project.",
  "circularId": 29749,
  "createdOn": 1617448200000,
  "email": "gauravwaratkar24@gmail.com",
  "subject": "GRB 210330A: AstroSat CZTI detection",
  "submitter": "Gaurav Waratkar at IIT Bombay  <gauravwaratkar24@gmail.com>",
  "eventId": "GRB 210330A"
}