{
  "bibcode": "2023GCN.33437....1K",
  "body": "Tilak Katoch, H. M. Antia and Parag Shah TIFR, Mumbai, India.\n\nAnalysis of AstroSat LAXPC data showed the clear detection of a long GRB \n230307A. The lightcurve shows the multiple burst profile with the peak \ntriggered at T0 = 15h 44m 03s UT on 07 Mar 2023. The satellite was in a \nnormal operating mode and well before the entry into the SAA region.\n\nThe lightcurve has a burst profile with T90 = 36 sec. The strongest peak \nmeasured have a count rate above the background with 13321 +/- 117 \ncount/sec in LAXPC10 and 4415 +/- 68 count/sec in LAXPC20 at T0+7 sec.\n\nBoth LAXPC instruments (LAXPC10 and LAXPC20) have registered this burst \nprofile in the light curve. For LAXPC20, the nominal energy range is \n3-100 keV, but due to the lower gain in LAXPC10 the energy range is \nabout 30-400 keV.\n\nThe background subtracted lightcurve with 1 sec time-bin is available at \nthe website:\n\nhttps://www.tifr.res.in/~astrosat_laxpc/grb230307alc.jpg [1]\n\nLAXPC was built by TIFR in collaboration with the Indian Space Research \nOrganisation. The Indian Space Research Organisation funded, managed and \nfacilitated the project.\n\n\n\nLinks:\n------\n[1] https://www.tifr.res.in/~astrosat_laxpc/grb230106lc.jpg",
  "circularId": 33437,
  "createdOn": 1678367729000,
  "email": "tilak@tifr.res.in",
  "subject": "GRB 230307A: AstroSat LAXPC detection",
  "submitter": "Tilak Katoch at TIFR  <tilak@tifr.res.in>",
  "eventId": "GRB 230307A"
}