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                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time: Tue Nov 11 12:33:24 GMT 2025
             Host Name: fireball.star.le.ac.uk
   Current Working Dir: /fbdata/autoproc/tmp/batxrtlc_gt90z
======================================================================

  Trigger: 00505801      Segment: 000

  BAT Trigger Time: 340651592   [s; MET]
      Trigger Stop: 340651656   [s; MET]
               UTC: 2011-10-18T17:26:24.519600    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 271.500387190674   Dec: -3.8713557158467  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.53
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    7.53

  Analysis Position:   [ source = BAT ]
    RA: 271.500387190674   Dec: -3.8713557158467  [deg; J2000]

  Refined Position:   [ source = BAT pre-slew burst ]
    RA: 271.487493784401   Dec: -3.88363666387724  [deg; J2000]  
        { 18h 05m 57.0s , -03d 53' 01.1" }
         +/- 2.13876667915128 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.26968640300402 [arcmin] (formal 1-sigma fit error)
    SNR: 10.267302711779



  Partial Coding Fraction: 0.8046875    [ including projection effects ]

  Duration
     T90: 37.8759999871254 +/- 4.62079003022178
        Measured from: -2.39600002765656
                   to: 35.4799999594688     [s; relative to TRIGTIME]
     T50: 10.8679999113083 +/- 14.6421797891632
        Measured from: 17.4800000190735
                   to: 28.3479999303818     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -2.34799998998642     
                   to: -1.34799998998642     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -4.0799999833107     
                   to: 39.7360000014305     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.312881   0.345311   0.096385   0.027398
           0.041750   0.039335   0.033550   0.028977 [error]
 Peak      0.018669   0.023393   0.014666   0.000797
           0.006425   0.006128   0.005230   0.004373 [error]

     [ fluence units of on-axis counts / fully illuminated detector ] 

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