{
  "bibcode": "2021GCN.29793....1L",
  "body": "A. Y. Lien (GSFC/UMBC), S. D. Barthelmy (GSFC),\nJ. R. Cummings (CPI), H. A. Krimm (NSF),\nS. Laha (GSFC/UMBC), C. B. Markwardt (GSFC),\nA. Melandri (INAF-OAB), D. M. Palmer (LANL),\nT. Sakamoto (AGU), M. Stamatikos (OSU),\nT. N. Ukwatta (LANL) (i.e. the Swift-BAT team):\n\nUsing the data set from T-239 to T+963 sec from the recent telemetry\ndownlink, we report further analysis of BAT GRB 210410A (trigger #1042113)\n(Melandri et al., GCN Circ. 29778).  The BAT ground-calculated position is\nRA, Dec = 269.741, 45.359 deg which is\n   RA(J2000)  =  17h 58m 57.8s\n   Dec(J2000) = +45d 21' 31.9\"\nwith an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 55%.\n\nThe mask-weighted light curve shows a FRED pulse that starts at ~T0, peaks\nat ~T0, peaks at ~T+2 s, and ends at ~T+100 s. T90 (15-350 keV)\nis 52.88 +- 4.15 sec (estimated error including systematics).\n\nThe time-averaged spectrum from T-0.00 to T+66.06 sec is best fit by a\nsimple\npower-law model.  The power law index of the time-averaged spectrum is\n1.04 +- 0.06.  The fluence in the 15-150 keV band is 5.6 +- 0.2 x 10^-6\nerg/cm2.\nThe 1-sec peak photon flux measured from T+1.74 sec in the 15-150 keV band\nis 4.0 +- 0.3 ph/cm2/sec.  All the quoted errors are at the 90% confidence\nlevel.\n\nThe results of the batgrbproduct analysis are available at\nhttp://gcn.gsfc.nasa.gov/notices_s/1042113/BA/",
  "circularId": 29793,
  "createdOn": 1618152826000,
  "email": "amy.y.lien@nasa.gov",
  "subject": "GRB 210410A: Swift-BAT refined analysis",
  "submitter": "Amy Lien at GSFC  <amy.y.lien@nasa.gov>",
  "eventId": "GRB 210410A"
}