Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time: Wed Jan 22 18:39:28 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger180241
======================================================================

  Trigger: 00180241      Segment: 000

  BAT Trigger Time: 160756465.088   [s; MET]
      Trigger Stop: 160756467.136   [s; MET]
               UTC: 2006-02-04T14:34:24.092080    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 211.794850072626   Dec: 27.6832125602182  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.49
     Image Trigger?:     NO
     Rate S/N Ratio:     13.490737563232  [ if not an image trigger ]
     Image S/N Ratio:    8.49

  Analysis Position:   [ source = BAT ]
    RA: 211.794850072626   Dec: 27.6832125602182  [deg; J2000]

  Refined Position:   [ source = BAT pre-slew burst ]
    RA: 211.803717079679   Dec: 27.6734212205552  [deg; J2000]  
        { 14h 07m 12.9s , +27d 40' 24.3" }
         +/- 0.803622430507524 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.30183253950445 [arcmin] (formal 1-sigma fit error)
    SNR: 41.5679214123898
 
  Angular difference between the analysis and refined position is 0.753065 arcmin
 
  Partial Coding Fraction: 0.7734375    [ including projection effects ]

  Duration
     T90: 139.463999986649 +/- 31.4574631730999
        Measured from: -19.4639999866486
                   to: 120     [s; relative to TRIGTIME]
     T50: 29.9160000085831 +/- 10.2365759812578
        Measured from: -7.33599999547005
                   to: 22.580000013113     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 5.04399999976158     
                   to: 6.04399999976158     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -24.2759999930859     
                   to: 170.715999990702     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.148895   1.780605   1.394848   0.413479
           0.067731   0.071677   0.064904   0.058912 [error]
 Peak      0.038500   0.064599   0.046082   0.015152
           0.005522   0.006412   0.005897   0.004978 [error]

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

======================================================================
 
 
====== Table of the duration information =============================
 
        Value   tstart    tstop
T100  194.992  -24.276  170.716
T90   139.464  -19.464  120.000
T50    29.916   -7.336   22.580
Peak    1.000    5.044    6.044
 
 
====== Spectral Analysis Summary =====================================
 
Model      : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index   : photon index: E^{Ph_index}
Ph_90err   : 90% error of the photon index
Epeak      : Epeak in keV
Epeak_90err: 90% error of Epeak
Norm       : normalization at 50 keV in both the PL model and CPL model
Nomr_90err : 90% error of the normalization
chi2       : Chi-Squared
dof        : degree of freedo
 
=== Time-averaged spectral analysis ===
(Best model with acceptable fit: CPL)
 
Model Ph_index Ph_90err_low Ph_90err_hi  Epeak  Epeak_90err_low  Epeak_90err_hi  Norm       Nomr_90err_low    Norm_90err_hi    chi2    dof
PL      -1.416    -0.082      0.082       -           -               -         1.64e-03     -7.64e-05          7.63e-05      71.150   57
CPL     -0.785    -0.358      0.391       98.492     -19.971        60.985      3.35e-03     -1.09e-03          1.81e-03      61.550   56
 
 
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: PL)
 
Model Ph_index Ph_90err_low Ph_90err_hi  Epeak  Epeak_90err_low  Epeak_90err_hi  Norm       Nomr_90err_low    Norm_90err_hi    chi2    dof
PL      -1.451     -0.189     0.186       -           -               -         1.08e-02     -1.29e-03          1.28e-03      61.550   57
CPL     -0.224     -0.917     1.169       67.862     -14.683        63.929      4.83e-02     -4.83e-02          1.52e-01      56.040   56
 
 
=== Fluence/Peak Flux Summary ===
 
              Model    Band1     Band2     Band3     Band4     Band5     Total
                       15-25     25-50    50-100    100-350    15-150    15-350    keV
Fluence         PL   3.78e-07  7.31e-07  1.10e-06  3.55e-06  3.08e-06  5.75e-06   erg/cm2
      90%_error_low -3.14e-08 -3.69e-08 -6.44e-08 -4.38e-07 -1.58e-07 -4.85e-07   erg/cm2
      90%_error_hi   3.23e-08  3.68e-08  6.43e-08  4.78e-07  1.58e-07  5.19e-07   erg/cm2
Peak flux       PL   4.23e-01  4.38e-01  3.21e-01  3.77e-01  1.33e+00  1.56e+00   ph/cm2/s
      90%_error_low -7.60e-02 -5.24e-02 -4.79e-02 -1.01e-01 -1.53e-01 -1.86e-01   ph/cm2/s
      90%_error_hi   7.94e-02  5.21e-02  4.76e-02  1.21e-01  1.53e-01  1.88e-01   ph/cm2/s
 
Fluence        CPL   3.35e-07  7.72e-07  1.14e-06  1.52e-06  2.93e-06  3.76e-06   erg/cm2
      90%_error_low -3.86e-08 -4.41e-08 -7.13e-08 -5.22e-07 -1.80e-07 -5.46e-07   erg/cm2
      90%_error_hi   3.95e-08  4.48e-08  7.21e-08  8.67e-07  1.80e-07  8.68e-07   erg/cm2
Peak flux      CPL   3.55e-01  4.98e-01  3.40e-01  1.08e-01  1.27e+00  1.30e+00   ph/cm2/s
      90%_error_low -9.11e-02 -6.97e-02 -5.73e-02 -6.75e-02 -1.59e-01 -1.74e-01   ph/cm2/s
      90%_error_hi   9.36e-02  7.32e-02  5.68e-02  1.56e-01  1.58e-01  2.02e-01   ph/cm2/s
 
======================================================================
  • Special notes of this burst