batgrbproduct Analysis for Trigger=599287

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun May 18 14:21:16 EDT 2014
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger599287/batgroup_hand_proc
======================================================================

  Trigger: 00599287      Segment: 000

  BAT Trigger Time: 422097478.656   [s; MET]
      Trigger Stop: 422097479.68   [s; MET]
               UTC: 2014-05-18T09:17:46.630720    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 227.269331468707   Dec: 42.4156655750532  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.66
     Image Trigger?:     NO
     Rate S/N Ratio:     13.7477270848675  [ if not an image trigger ]
     Image S/N Ratio:    8.66

  Flight Position:   [ source = BAT ]
    RA: 227.269331468707   Dec: 42.4156655750532  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 227.23061892374   Dec: 42.3956197959279  [deg; J2000]  
        { 15h 08m 55.3s , +42d 23' 44.2" }
         +/- 1.75290119919535 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.839795177398952 [arcmin] (formal 1-sigma fit error)
    SNR: 13.642484478941
 
  Angular difference between Flight and Ground position is 2.094791 arcmin
 
  Partial Coding Fraction: 0.890625    [ including projection effects ]

  Duration
     T90: 60.4919999837875 +/- 2.42918916112475
        Measured from: -2.69600003957748
                   to: 57.7959999442101     [s; relative to TRIGTIME]
     T50: 48.4919999241829 +/- 3.29093060775758
        Measured from: 3.7039999961853
                   to: 52.1959999203682     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 41.944000005722     
                   to: 42.944000005722     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -4.06800001859665     
                   to: 60.039999961853     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.775527   0.870395   0.417108   0.000703
           0.045592   0.045869   0.041170   0.038328 [error]
 Peak      0.036722   0.056198   0.027364   0.005222
           0.006026   0.006060   0.005422   0.004769 [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 2.46e-07 3.41e-07 3.49e-07 6.51e-07 1.14e-06 1.59e-06   erg/cm2
              Error 2.39e-08 2.24e-08 3.92e-08 1.46e-07 8.97e-08 1.87e-07   erg/cm2
Peak flux Power-law 3.89e-01 3.40e-01 2.04e-01 1.84e-01 1.01e+00 1.12e+00   ph/cm2/s
              Error 8.02e-02 4.87e-02 4.31e-02 7.39e-02 1.45e-01 1.65e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.19e-07 3.79e-07 3.33e-07 1.44e-07 1.03e-06 1.08e-06   erg/cm2
              Error 2.81e-08 3.05e-08 4.67e-08 1.16e-07 9.96e-08 1.54e-07   erg/cm2
Peak flux Cutoff-PL 3.21e-01 4.14e-01 1.99e-01 2.71e-02 9.57e-01 9.60e-01   ph/cm2/s
              Error 9.53e-02 7.12e-02 5.62e-02 4.67e-02 1.48e-01 1.52e-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    1.966    0.126    -      -           1.94e-03 1.57e-04   65.020 57
CPL   0.918    0.614      43.9    7.6      7.53e-03 6.95e-03   54.150 56
 
The chi2 of BB fit is Chi-Squared Chi-Squared which shows a significant improvement in the fit over a PL.
Check the BB fit.
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.739    0.240    -      -           7.52e-03 1.24e-03   75.750 57
CPL  -0.101    1.508      48.3   14.2      8.35e-02 4.21e-01   68.700 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: 61.440000 sec.
T50 in the 50-300 keV band: 52.096000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   64.108   -4.068   60.040
T90    60.492   -2.696   57.796
T50    48.492    3.704   52.196
Peak    1.000   41.944   42.944

Image

Pre-slew 15.0-350.0 keV image (Event data)

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  227.2306    42.3956   0.0141    20.2245   -44.0607         0.6696563     13.642 TRIG_00599287                 
 
Foreground time interval of the image:
 -4.068  15.845 (delta_t =  19.913 [sec])
Background time interval of the image:
-347.555 -328.358 (delta_t =  19.197 [sec])
-239.656  -4.068 (delta_t = 235.588 [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   -4.068 sec. to   60.040 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.96615     ( -0.124014   0.128085 )
Norm@50keV  : 1.93599E-03    ( -0.000158283   0.000156307 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.02 using 59 PHA bins.
# Reduced chi-squared =          1.141 for     57 degrees of freedom 
# Null hypothesis probability =   2.175662e-01
 
Photon flux (15-150 keV)    in 64.11 sec: 0.285970 ( -0.018945  0.0189562 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.14284e-06 ( -8.90571e-08  9.03925e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -4.068 sec. to   60.040 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.918364     ( -0.656217   0.571492 )
Epeak [keV] : 43.8889      ( -6.59756 8.61589 )
Norm@50keV  : 7.52766E-03    ( -0.00389031   0.0100023 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.15 using 59 PHA bins.
# Reduced chi-squared =         0.9670 for     56 degrees of freedom 
# Null hypothesis probability =   5.451188e-01
 
Photon flux (15-150 keV)    in 64.11 sec: 0.271823 ( -0.020147  0.0202 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.03261e-06 ( -9.68382e-08  1.02396e-07 ) ergs/cm2
 
Band function
Time interval is from   -4.068 sec. to   60.040 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.918300   ( -0.472983   0.782641 )
beta        : -10.0000    ( 10   7.10543e-15 )
Epeak [keV] : 43.8796      ( -6.59447 8.6283 )
Norm@50keV   : 7.52811E-03    ( -0.00389107   0.0100361 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.15 using 59 PHA bins.
# Reduced chi-squared =         0.9846 for     55 degrees of freedom 
# Null hypothesis probability =   5.069861e-01
 
Photon flux (15-150 keV)    in 64.11 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]    : 10.7049  (-0.789232  0.850513)
R^2/D10^2   : 0.102313  (-0.0257903   0.0345788)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          80.80 using 59 PHA bins.
# Reduced chi-squared =          1.418 for     57 degrees of freedom 
# Null hypothesis probability =   2.075526e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.561e-07   1.920e-08
25- 50  4.261e-07   3.154e-08
50-150  2.700e-07   4.363e-08
15-150  8.522e-07   6.251e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 69.2775       (-13.0115      18.0674)
Norm        : 1.40774       (-0.145905     0.167075)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.43 using 59 PHA bins.
# Reduced chi-squared =         0.9725 for     57 degrees of freedom 
# Null hypothesis probability =   5.340265e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.313e-07   2.074e-08
25- 50  3.669e-07   2.728e-08
50-150  4.677e-07   8.959e-08
15-150  1.066e-06   9.296e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.34129        (-1.21788      1.69604)
R1^2/D10^2  : 1.70073        (-1.20487      4.342)
kT2 [keV]   : 14.0458        (-1.84746      3.03786)
R2^2/D10^2  : 3.04196E-02    (-0.0179348   0.0300408)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.08 using 59 PHA bins.
# Reduced chi-squared =         0.9651 for     55 degrees of freedom 
# Null hypothesis probability =   5.482982e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.267e-07   9.327e-08
25- 50  3.691e-07   1.052e-07
50-150  3.958e-07   1.248e-07
15-150  9.915e-07   2.189e-07

Peak spectrum fit

Power-law model
Time interval is from   41.944 sec. to   42.944 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.73865     ( -0.234547   0.245942 )
Norm@50keV  : 7.52273E-03    ( -0.00124723   0.00122511 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          75.75 using 59 PHA bins.
# Reduced chi-squared =          1.329 for     57 degrees of freedom 
# Null hypothesis probability =   4.898266e-02
 
Photon flux (15-150 keV)    in 1 sec: 1.01297 ( -0.144777  0.144798 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.94672e-08 ( -1.17606e-08  1.20935e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   41.944 sec. to   42.944 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.100875     ( -1.75581   1.26052 )
Epeak [keV] : 48.3258      ( -8.61124 19.7655 )
Norm@50keV  : 8.35014E-02    ( -0.083805   0.758317 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.70 using 59 PHA bins.
# Reduced chi-squared =          1.227 for     56 degrees of freedom 
# Null hypothesis probability =   1.186190e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.957277 ( -0.147431  0.148293 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.93899e-08 ( -1.1253e-08  1.29063e-08 ) ergs/cm2
 
Band function
Time interval is from   41.944 sec. to   42.944 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.102922   ( -1.15625   2.60576 )
beta        : -10.0000    ( 10   3.55271e-15 )
Epeak [keV] : 48.3071      ( -8.52908 19.7703 )
Norm@50keV   : 8.37470E-02    ( -0.0837469   0.757734 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.70 using 59 PHA bins.
# Reduced chi-squared =          1.249 for     55 degrees of freedom 
# Null hypothesis probability =   1.013459e-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]    : 11.5521  (-1.57885  1.85669)
R^2/D10^2   : 0.299747  (-0.127504   0.2146)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.66 using 59 PHA bins.
# Reduced chi-squared =          1.240 for     57 degrees of freedom 
# Null hypothesis probability =   1.054998e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.426e-09   2.311e-09
25- 50  2.534e-08   5.240e-09
50-150  1.980e-08   6.385e-09
15-150  5.356e-08   1.116e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 98.0829       (-36.8539      90.3795)
Norm        : 4.57116       (-0.795545     0.991824)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          72.11 using 59 PHA bins.
# Reduced chi-squared =          1.265 for     57 degrees of freedom 
# Null hypothesis probability =   8.570173e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.195e-08   2.445e-09
25- 50  2.058e-08   4.190e-09
50-150  3.298e-08   1.794e-08
15-150  6.550e-08   2.168e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.76092        (-6.81918      -6.81918)
R1^2/D10^2  : 0.863709        (-0.841191      -0.841191)
kT2 [keV]   : 15.0575        (-15.2128      -15.2128)
R2^2/D10^2  : 8.27864E-02    (-0.0779109   0.3277)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.80 using 59 PHA bins.
# Reduced chi-squared =          1.251 for     55 degrees of freedom 
# Null hypothesis probability =   9.999556e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.004e-08   5.790e-09
25- 50  2.347e-08   1.224e-08
50-150  2.534e-08   1.512e-08
15-150  5.885e-08   3.058e-08
Plot creation:
Sun May 18 14:29:13 EDT 2014