{
  "bibcode": "2023GCN.33869....1N",
  "body": "\n\nP K. Navaneeth (IUCAA), G. Waratkar (IITB), A. Vibhute (IUCAA), V. Bhalerao (IITB), D. Bhattacharya (Ashoka University/IUCAA), A. R. Rao (IUCAA/TIFR), and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration:\n\nAnalysis of AstroSat CZTI data with the CIFT framework (Sharma et al., 2021, JApA, 42, 73) showed the detection of a probable long GRB 230524B which was also detected by Fermi-GBM (Trigger Number 706599831).\n\nThe source was detected in the 20-200 keV energy range. The light curve peaks at 2023-05-24 05:43:58.50 UTC. The measured peak count rate associated with the burst is 108 (+47, -6) counts/s above the background in the combined data of all quadrants, with a total of 1060 (+469, -248) counts. The local mean background count rate was 409 (+2, -3) counts/s. Using cumulative rates, we measure a T90 of 21 (+12, -8) s.\n\nThe source was also detected in the CsI anticoincidence (Veto) detector in the 100-500 keV energy range.\n\nCZTI is built by a TIFR-led consortium of institutes across India, including VSSC, URSC, IUCAA, SAC, and PRL. The Indian Space Research Organisation funded, managed, and facilitated the project.\n\nCZTI GRB detections are reported regularly on the payload site at:\nhttp://astrosat.iucaa.in/czti/?q=grb",
  "submitter": "Gaurav Waratkar at IIT Bombay <gauravwaratkar@iitb.ac.in>",
  "circularId": 33869,
  "subject": "GRB 230524B: AstroSat CZTI detection",
  "eventId": "GRB 230524B",
  "createdOn": 1684935406293
}