batgrbproduct Analysis for Trigger=539563

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Nov 26 01:18:31 EST 2012
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger539563/GCN5_download_cron
======================================================================

  Trigger: 00539563      Segment: 000

  BAT Trigger Time: 375525157.184   [s; MET]
      Trigger Stop: 375525157.696   [s; MET]
               UTC: 2012-11-25T08:32:27.271500    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 228.520506554365   Dec: 55.3218658361602  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.04
     Image Trigger?:     NO
     Rate S/N Ratio:     10.4880884817015  [ if not an image trigger ]
     Image S/N Ratio:    7.04

  Flight Position:   [ source = BAT ]
    RA: 228.520506554365   Dec: 55.3218658361602  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 228.527013173271   Dec: 55.3188792800906  [deg; J2000]  
        { 15h 14m 06.5s , +55d 19' 08.0" }
         +/- 1.1549217848885 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.42418579086644 [arcmin] (formal 1-sigma fit error)
    SNR: 24.7603945569611
 
  Angular difference between Flight and Ground position is 0.285399 arcmin
 
  Partial Coding Fraction: 0.8046875    [ including projection effects ]

  Duration
     T90: 52.3679999709129 +/- 5.16336944429175
        Measured from: 0.392000079154968
                   to: 52.7600000500679     [s; relative to TRIGTIME]
     T50: 24.5839999318123 +/- 1.26370251135492
        Measured from: 13.052000105381
                   to: 37.6360000371933     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 36.555999994278     
                   to: 37.555999994278     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -6.87999999523163     
                   to: 80.1599999666214     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     2.194006   2.726304   2.127423   0.448008
           0.059340   0.062614   0.057013   0.053140 [error]
 Peak      0.095145   0.114378   0.113227   0.035406
           0.007048   0.007853   0.007621   0.006215 [error]

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

======================================================================
 
=== 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   Power-law 6.57e-07 1.19e-06 1.64e-06 4.74e-06 4.72e-06 8.22e-06   erg/cm2
              Error 3.79e-08 3.82e-08 6.12e-08 4.11e-07 1.45e-07 4.44e-07   erg/cm2
Peak flux Power-law 8.57e-01 9.34e-01 7.25e-01 9.23e-01 2.86e+00 3.44e+00   ph/cm2/s
              Error 1.09e-01 6.96e-02 6.42e-02 1.76e-01 1.97e-01 2.47e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.49e-07 1.19e-06 1.65e-06 4.38e-06 7.87e-06 0.00e+00   erg/cm2
              Error 4.51e-08 4.07e-08 6.48e-08 8.76e-07 8.94e-07 0.00e+00   erg/cm2
Peak flux Cutoff-PL 8.55e-01 9.34e-01 7.25e-01 9.18e-01 2.86e+00 3.42e+00   ph/cm2/s
              Error 9.47e-02 6.96e-02 6.43e-02 1.73e-01 1.96e-01 2.47e-01   ph/cm2/s
 
Fluence        Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
              Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
Peak flux      Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
              Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.530    0.057    -      -           5.75e-03 1.64e-04   46.940 57
CPL   1.492    0.146     662.8    0.0      5.99e-03 8.75e-04   47.000 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.366    0.128    -      -           2.37e-02 1.64e-03   59.930 57
CPL   1.363    0.129    9999.4    0.0      2.38e-02 6.63e-03   59.960 56
 
Model      : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index   : photon index: E^-{Ph_index} (minus sign is not included in the 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 PL model and at 1 keV in CPL model
Nomr_90err : 90% error of the normalization
chi2       : Chi-Squared
dof        : degree of freedom
 
=== T90/T50 calculation in the 50-300 keV band (BATSE band) using 64 ms lc ===
 
T90 in the 50-300 keV band: 48.256000 sec.
T50 in the 50-300 keV band: 22.400000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   87.040   -6.880   80.160
T90    52.368    0.392   52.760
T50    24.584   13.052   37.636
Peak    1.000   36.556   37.556

Image

Pre-slew 15-350 keV image (Event data; bkg subtracted)

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  228.5270 +55.3189 0.0077   23.0  -50.1       1.6116    24.8  TRIG_00539563       
------------------------------------------
 
Foreground time interval of the image:
 -6.880  10.617 (delta_t =  17.497 [sec])
Background time interval of the image:
-239.184  -6.880 (delta_t = 232.304 [sec])

Lightcurves

Notes:

1 s binning

From T0-310 s to T0+310 s
From T100_start - 20 s to T100_end + 30 s
Full time interval

64 ms binning

Full time interval
From T100_start to T100_end
From T0-5 sec to T0+5 sec

16 ms binning

From T100_start-5 s to T100_start+5 s

8 ms binning

From T100_start-3 s to T100_start+3 s

2 ms binning

From T100_start-1 s to T100_start+1 s

SN=5 or 10 sec. binning (whichever binning is satisfied first)

SN=5 or 10 sec. binning (T < 200 sec)

Spectra

Notes:

Time averaged spectrum fit using the pre-slew DRM

Power-law model
Time interval is from   -6.880 sec. to   80.160 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.52954     ( -0.0570408   0.0571523 )
Norm@50keV  : 5.74818E-03    ( -0.000164126   0.000164014 )
------------------------------------------------------------
# Chi-Squared =          46.94 using 59 PHA bins.
# Reduced chi-squared =         0.8236 for     57 degrees of freedom 
# Null hypothesis probability =   8.264818e-01
 
Photon flux (15-150 keV)    in 87.04 sec: 0.723451 ( -0.0224462  0.0225562 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.72428e-06 ( -1.45095e-07  1.4569e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -6.880 sec. to   80.160 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.49159     ( -0.213274   0.07868 )
Epeak [keV] : 662.803      ( -993.789 -993.789 )
Norm@50keV  : 5.98640E-03    ( -0.000309761   0.00143975 )
------------------------------------------------------------
# Chi-Squared =          47.00 using 59 PHA bins.
# Reduced chi-squared =         0.8393 for     56 degrees of freedom 
# Null hypothesis probability =   7.987184e-01
 
Photon flux (15-150 keV)    in 87.04 sec: 0.720137 ( -0.023753  0.025664 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.86711e-06 ( -1.01597e-06  7.72228e-07 ) ergs/cm2
 
Band function
Time interval is from   -6.880 sec. to   80.160 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.685289   ( 1.07827   1.07827 )
beta        : -1.53838    ( -0.0696097   0.059635 )
Epeak [keV] : 38.1541      ( -37.2724 470.684 )
Norm@50keV   : 2.46203E-02    ( -0.0250361   60.3837 )
------------------------------------------------------------
# Chi-Squared =          46.60 using 59 PHA bins.
# Reduced chi-squared =         0.8473 for     55 degrees of freedom 
# Null hypothesis probability =   7.826636e-01
 
Photon flux (15-150 keV)    in 87.04 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 16.2328  (  )
R^2/D10^2   : 5.84191E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =         325.08 using 59 PHA bins.
# Reduced chi-squared =         5.7032 for     57 degrees of freedom 
# Null hypothesis probability =   3.402270e-39
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.761e-07   1.623e-08
25- 50  1.176e-06   4.613e-08
50-150  2.178e-06   1.197e-07
15-150  3.631e-06   1.197e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.989       (      )
Norm        : 2.93206       (-0.0832075     0.0832075)
------------------------------------------------------------
# Chi-Squared =          54.36 using 59 PHA bins.
# Reduced chi-squared =         0.9536 for     57 degrees of freedom 
# Null hypothesis probability =   5.749067e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.356e-07   3.224e-07
25- 50  1.223e-06   6.215e-07
50-150  2.682e-06   1.363e-06
15-150  4.540e-06   2.309e-06
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.54113        (-0.663321      0.732302)
R1^2/D10^2  : 0.959595        (-0.308591      0.490759)
kT2 [keV]   : 26.5377        (-2.30572      2.9438)
R2^2/D10^2  : 8.94805E-03    (-0.00275438   0.00344084)
------------------------------------------------------------
# Chi-Squared =          48.99 using 59 PHA bins.
# Reduced chi-squared =         0.8908 for     55 degrees of freedom 
# Null hypothesis probability =   7.022515e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.244e-07   8.112e-08
25- 50  1.176e-06   7.398e-08
50-150  2.866e-06   1.945e-07
15-150  4.665e-06   2.550e-07

Peak spectrum fit

Power-law model
Time interval is from   36.556 sec. to   37.556 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.36573     ( -0.127911   0.128989 )
Norm@50keV  : 2.36754E-02    ( -0.00164213   0.00163596 )
------------------------------------------------------------
# Chi-Squared =          59.93 using 59 PHA bins.
# Reduced chi-squared =          1.051 for     57 degrees of freedom 
# Null hypothesis probability =   3.698978e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.86160 ( -0.196487  0.196768 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.3043e-07 ( -1.83506e-08  1.85058e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   36.556 sec. to   37.556 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.36266     ( -0.128744   0.129416 )
Epeak [keV] : 9999.36      ( -9998.07 -9998.07 )
Norm@50keV  : 2.37641E-02    ( -0.00587055   0.0073799 )
------------------------------------------------------------
# Chi-Squared =          59.96 using 59 PHA bins.
# Reduced chi-squared =          1.071 for     56 degrees of freedom 
# Null hypothesis probability =   3.342500e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.86120 ( -0.19718  0.19561 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.42199e-07 ( -6.7583e-08  6.565e-08 ) ergs/cm2
 
Band function
Time interval is from   36.556 sec. to   37.556 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.09253   ( 1.09339   1.09339 )
beta        : -1.36571    ( 1.36572   0.127923 )
Epeak [keV] : 41.3538      ( -40.6774 -40.6774 )
Norm@50keV   : 4.54875E-02    ( -0.0178429   3.39464 )
------------------------------------------------------------
# Chi-Squared =          59.93 using 59 PHA bins.
# Reduced chi-squared =          1.090 for     55 degrees of freedom 
# Null hypothesis probability =   3.015646e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 17.0286  (  )
R^2/D10^2   : 0.208571  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =         131.82 using 59 PHA bins.
# Reduced chi-squared =         2.3126 for     57 degrees of freedom 
# Null hypothesis probability =   7.331343e-08
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.231e-08   1.820e-09
25- 50  5.455e-08   5.790e-09
50-150  1.130e-07   1.625e-08
15-150  1.799e-07   1.565e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.996       (      )
Norm        : 11.6959       (-11.6959     -11.6959)
------------------------------------------------------------
# Chi-Squared =          69.23 using 59 PHA bins.
# Reduced chi-squared =          1.215 for     57 degrees of freedom 
# Null hypothesis probability =   1.283647e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.912e-08   1.524e-08
25- 50  5.602e-08   2.925e-08
50-150  1.228e-07   6.410e-08
15-150  2.080e-07   1.088e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.17853        (-1.18891      1.3955)
R1^2/D10^2  : 4.60441        (-2.38906      5.96141)
kT2 [keV]   : 30.2742        (-5.30217      8.63111)
R2^2/D10^2  : 2.73018E-02    (-0.0146502   0.0239337)
------------------------------------------------------------
# Chi-Squared =          58.47 using 59 PHA bins.
# Reduced chi-squared =          1.063 for     55 degrees of freedom 
# Null hypothesis probability =   3.492005e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.822e-08   8.020e-09
25- 50  4.995e-08   1.003e-08
50-150  1.581e-07   4.291e-08
15-150  2.363e-07   5.070e-08
Plot creation:
Mon Nov 26 01:44:16 EST 2012