batgrbproduct Analysis for Trigger=539358

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat Nov 24 04:24:39 EST 2012
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger539358/GCN5_download_cron
======================================================================

  Trigger: 00539358      Segment: 000

  BAT Trigger Time: 375357771.2   [s; MET]
      Trigger Stop: 375357779.392   [s; MET]
               UTC: 2012-11-23T10:02:41.294660    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 307.361694621078   Dec: -11.8596197133855  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.11
     Image Trigger?:     NO
     Rate S/N Ratio:     8.42614977317636  [ if not an image trigger ]
     Image S/N Ratio:    8.11

  Flight Position:   [ source = BAT ]
    RA: 307.361694621078   Dec: -11.8596197133855  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 307.334164995375   Dec: -11.8733639995468  [deg; J2000]  
        { 20h 29m 20.2s , -11d 52' 24.1" }
         +/- 1.78088749503164 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.708459614962538 [arcmin] (formal 1-sigma fit error)
    SNR: 13.3372490026169
 
  Angular difference between Flight and Ground position is 1.814679 arcmin
 
  Partial Coding Fraction: 0.8203125    [ including projection effects ]

  Duration
     T90: 326.919999957085 +/- 13.8670995923469
        Measured from: 41.9200001358986
                   to: 368.840000092983     [s; relative to TRIGTIME]
     T50: 62.3639999032021 +/- 2.81948932095092
        Measured from: 214.104000151157
                   to: 276.468000054359     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 232.56400001049     
                   to: 233.56400001049     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -6.33999997377396     
                   to: 419.227999985218     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     6.747280   9.418937   5.903030   0.856266
           0.131494   0.134727   0.120450   0.111680 [error]
 Peak      0.059580   0.125774   0.105680   0.028485
           0.007229   0.008105   0.007539   0.005950 [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 2.50e-06 3.88e-06 4.52e-06 1.02e-05 1.39e-05 2.11e-05   erg/cm2
              Error 1.04e-07 9.38e-08 1.30e-07 6.50e-07 3.15e-07 7.32e-07   erg/cm2
Peak flux Power-law 7.05e-01 8.19e-01 6.85e-01 9.66e-01 2.56e+00 3.18e+00   ph/cm2/s
              Error 9.57e-02 6.89e-02 5.96e-02 1.74e-01 1.93e-01 2.47e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.10e-06 4.07e-06 4.69e-06 3.89e-06 1.47e-05 0.00e+00   erg/cm2
              Error 1.33e-07 1.08e-07 1.45e-07 7.87e-07 8.72e-07 0.00e+00   erg/cm2
Peak flux Cutoff-PL 6.17e-01 8.62e-01 7.30e-01 5.14e-01 2.49e+00 2.72e+00   ph/cm2/s
              Error 1.17e-01 8.02e-02 7.15e-02 2.69e-01 2.00e-01 3.33e-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 4.83e-02 1.16e-01 2.91e+00 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
              Error 3.32e-02 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    1.779    0.042    -      -           3.54e-03 7.89e-05  100.310 57
CPL   0.966    0.203      65.1    5.1      8.71e-03 1.94e-03   44.440 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.258    0.124    -      -           2.16e-02 1.60e-03   67.090 57
CPL   0.623    0.552     115.0  133.9      4.37e-02 2.86e-02   62.580 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: 134.528000 sec.
T50 in the 50-300 keV band: 43.904000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  425.568   -6.340  419.228
T90   326.920   41.920  368.840
T50    62.364  214.104  276.468
Peak    1.000  232.564  233.564

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  307.3342 -11.8734 0.0144   28.1  177.8       1.5081    13.3  TRIG_00539358       
------------------------------------------
 
Foreground time interval of the image:
 -6.340  52.301 (delta_t =  58.641 [sec])
Background time interval of the image:
-239.200  -6.340 (delta_t = 232.860 [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   -6.340 sec. to  419.228 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.77926     ( -0.0417055   0.0418259 )
Norm@50keV  : 3.54127E-03    ( -7.88955e-05   7.88474e-05 )
------------------------------------------------------------
# Chi-Squared =         100.31 using 59 PHA bins.
# Reduced chi-squared =         1.7599 for     57 degrees of freedom 
# Null hypothesis probability =   3.495420e-04
 
Photon flux (15-150 keV)    in 425.6 sec: 0.484109 ( -0.0120617  0.0121115 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.38865e-05 ( -3.14648e-07  3.14979e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -6.340 sec. to  419.228 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.965519     ( -0.207134   0.198102 )
Epeak [keV] : 65.0975      ( -4.29202 5.902 )
Norm@50keV  : 8.71370E-03    ( -0.00168325   0.00220122 )
------------------------------------------------------------
# Chi-Squared =          44.44 using 59 PHA bins.
# Reduced chi-squared =         0.7937 for     56 degrees of freedom 
# Null hypothesis probability =   8.672260e-01
 
Photon flux (15-150 keV)    in 425.6 sec: 0.452854 ( -0.013678  0.013765 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.47467e-05 ( -7.94765e-07  9.50195e-07 ) ergs/cm2
 
Band function
Time interval is from   -6.340 sec. to  419.228 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.793649   ( -0.319751   0.464671 )
beta        : -2.33619    ( 2.33619   0.235408 )
Epeak [keV] : 59.7421      ( -9.02989 9.50754 )
Norm@50keV   : 1.08924E-02    ( -0.00346926   0.00938672 )
------------------------------------------------------------
# Chi-Squared =          43.24 using 59 PHA bins.
# Reduced chi-squared =         0.7862 for     55 degrees of freedom 
# Null hypothesis probability =   8.745345e-01
 
Photon flux (15-150 keV)    in 425.6 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]    : 13.9269  (  )
R^2/D10^2   : 6.46528E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =         294.77 using 59 PHA bins.
# Reduced chi-squared =         5.1714 for     57 degrees of freedom 
# Null hypothesis probability =   8.996415e-34
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.128e-06   4.894e-08
25- 50  4.173e-06   1.141e-07
50-150  5.315e-06   2.234e-07
15-150  1.062e-05   2.383e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 115.041       (4.8995      26.1864)
Norm        : 2.04572       (-0.0679572     0.0716053)
------------------------------------------------------------
# Chi-Squared =          51.73 using 59 PHA bins.
# Reduced chi-squared =         0.9076 for     57 degrees of freedom 
# Null hypothesis probability =   6.723603e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.271e-06   8.555e-08
25- 50  4.033e-06   8.874e-08
50-150  7.047e-06   6.490e-07
15-150  1.335e-05   6.639e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.52283        (-0.817363      0.843845)
R1^2/D10^2  : 0.371966        (-0.103243      0.168158)
kT2 [keV]   : 21.9841        (-2.00432      2.71752)
R2^2/D10^2  : 8.60961E-03    (-0.0033756   0.00444054)
------------------------------------------------------------
# Chi-Squared =          52.08 using 59 PHA bins.
# Reduced chi-squared =         0.9469 for     55 degrees of freedom 
# Null hypothesis probability =   5.869995e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.869e-06   1.556e-07
25- 50  4.151e-06   2.194e-07
50-150  6.774e-06   4.937e-07
15-150  1.279e-05   8.278e-07

Peak spectrum fit

Power-law model
Time interval is from  232.564 sec. to  233.564 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.25804     ( -0.124664   0.12421 )
Norm@50keV  : 2.15874E-02    ( -0.00159748   0.00159704 )
------------------------------------------------------------
# Chi-Squared =          67.09 using 59 PHA bins.
# Reduced chi-squared =          1.177 for     57 degrees of freedom 
# Null hypothesis probability =   1.694397e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.55657 ( -0.193315  0.193523 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.15591e-07 ( -1.77131e-08  1.78116e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  232.564 sec. to  233.564 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.623246     ( -0.587622   0.515886 )
Epeak [keV] : 114.953      ( -32.3627 235.396 )
Norm@50keV  : 4.36536E-02    ( -0.0186773   0.0384636 )
------------------------------------------------------------
# Chi-Squared =          62.58 using 59 PHA bins.
# Reduced chi-squared =          1.117 for     56 degrees of freedom 
# Null hypothesis probability =   2.542901e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.49444 ( -0.20029  0.2001 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.83133e-07 ( -6.0891e-08  1.19363e-07 ) ergs/cm2
 
Band function
Time interval is from  232.564 sec. to  233.564 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.287665   ( -0.823251   4.33583 )
beta        : -1.59484    ( 1.59715   0.312206 )
Epeak [keV] : 81.4270      ( -46.8704 178.596 )
Norm@50keV   : 6.95495E-02    ( -0.0733395   100.638 )
------------------------------------------------------------
# Chi-Squared =          62.24 using 59 PHA bins.
# Reduced chi-squared =          1.132 for     55 degrees of freedom 
# Null hypothesis probability =   2.340654e-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]    : 17.5696  (-1.56475  1.76456)
R^2/D10^2   : 0.181389  (-0.0500192   0.0671484)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          86.65 using 59 PHA bins.
# Reduced chi-squared =          1.520 for     57 degrees of freedom 
# Null hypothesis probability =   6.874504e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.130e-08   1.645e-09
25- 50  5.129e-08   5.430e-09
50-150  1.142e-07   1.597e-08
15-150  1.767e-07   1.730e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.996       (      )
Norm        : 10.5806       (-10.5806     -10.5806)
------------------------------------------------------------
# Chi-Squared =          79.21 using 59 PHA bins.
# Reduced chi-squared =          1.390 for     57 degrees of freedom 
# Null hypothesis probability =   2.747449e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.634e-08   1.376e-08
25- 50  5.067e-08   2.656e-08
50-150  1.111e-07   5.855e-08
15-150  1.881e-07   9.830e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.24117        (-3.00317      3.19135)
R1^2/D10^2  : 0.875257        (-0.462607      1.1814)
kT2 [keV]   : 30.4094        (-8.05006      27.5476)
R2^2/D10^2  : 2.17100E-02    (-0.0188359   0.0475186)
------------------------------------------------------------
# Chi-Squared =          62.85 using 59 PHA bins.
# Reduced chi-squared =          1.143 for     55 degrees of freedom 
# Null hypothesis probability =   2.181846e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.786e-08   6.600e-09
25- 50  5.196e-08   1.679e-08
50-150  1.390e-07   6.226e-08
15-150  2.088e-07   8.842e-08
Plot creation:
Sat Nov 24 04:47:29 EST 2012