batgrbproduct Analysis for Trigger=596901

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Apr 23 20:59:31 EDT 2014
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger596901/GCN5_download_cron
======================================================================

  Trigger: 00596901      Segment: 000

  BAT Trigger Time: 419934725.184   [s; MET]
      Trigger Stop: 419934729.28   [s; MET]
               UTC: 2014-04-23T08:31:53.262020    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 197.290296592494   Dec: 49.8145967622945  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.94
     Image Trigger?:     NO
     Rate S/N Ratio:     10.9544511501033  [ if not an image trigger ]
     Image S/N Ratio:    9.94

  Flight Position:   [ source = BAT ]
    RA: 197.290296592494   Dec: 49.8145967622945  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 197.275960997039   Dec: 49.8384298005951  [deg; J2000]  
        { 13h 09m 06.2s , +49d 50' 18.3" }
         +/- 0.911497909633015 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.354520214812375 [arcmin] (formal 1-sigma fit error)
    SNR: 34.7224427058677
 
  Angular difference between Flight and Ground position is 1.533864 arcmin
 
  Partial Coding Fraction: 0.3984375    [ including projection effects ]

  Duration
     T90: 134.336000025272 +/- 23.0119829578041
        Measured from: -50.9599999189377
                   to: 83.3760001063347     [s; relative to TRIGTIME]
     T50: 53.8240000009537 +/- 2.91112074394723
        Measured from: 2.60800009965897
                   to: 56.4320001006126     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 44.1879999637604     
                   to: 45.1879999637604     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -130.128000020981     
                   to: 108.912000000477     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     3.334108   5.020915   4.443351   1.271862
           0.127155   0.134507   0.120283   0.101872 [error]
 Peak      0.056514   0.105176   0.082026   0.042076
           0.009163   0.010784   0.009795   0.007755 [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 1.04e-06 2.13e-06 3.38e-06 1.19e-05 9.38e-06 1.85e-05   erg/cm2
              Error 6.50e-08 7.69e-08 1.21e-07 9.90e-07 3.02e-07 1.05e-06   erg/cm2
Peak flux Power-law 5.58e-01 6.78e-01 5.97e-01 9.05e-01 2.15e+00 2.74e+00   ph/cm2/s
              Error 1.15e-01 8.70e-02 7.78e-02 2.45e-01 2.45e-01 3.29e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.00e-06 2.15e-06 3.43e-06 9.48e-06 9.29e-06 1.61e-05   erg/cm2
              Error 6.22e-08 8.29e-08 1.39e-07 3.28e-07 2.28e-06 0.00e+00   erg/cm2
Peak flux Cutoff-PL 5.41e-01 6.92e-01 6.09e-01 7.18e-01 2.14e+00 2.56e+00   ph/cm2/s
              Error 1.29e-01 1.03e-01 8.97e-02 3.70e-01 2.48e-01 4.88e-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    1.332    0.056    -      -           4.00e-03 1.21e-04   45.520 57
CPL   1.163    0.209     275.8    0.0      4.78e-03 0.00e+00   43.760 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.183    0.188    -      -           1.84e-02 2.05e-03   72.150 57
CPL   0.998    0.611     277.8    0.0      2.28e-02 2.39e-02   71.970 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: 112.448000 sec.
T50 in the 50-300 keV band: 51.008000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  239.040 -130.128  108.912
T90   134.336  -50.960   83.376
T50    53.824    2.608   56.432
Peak    1.000   44.188   45.188

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  197.2760 +49.8384 0.0055   29.1  105.7      15.2815    34.7  TRIG_00596901       
------------------------------------------
 
Foreground time interval of the image:
-130.128 108.912 (delta_t = 239.040 [sec])
Background time interval of the image:
-239.184 -130.128 (delta_t = 109.056 [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 -130.128 sec. to  108.912 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.33200     ( -0.0564925   0.0562894 )
Norm@50keV  : 4.00284E-03    ( -0.000121134   0.00012111 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.52 using 59 PHA bins.
# Reduced chi-squared =         0.7987 for     57 degrees of freedom 
# Null hypothesis probability =   8.628648e-01
 
Photon flux (15-150 keV)    in 239 sec: 0.480479 ( -0.0157823  0.0158212 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.38206e-06 ( -3.01847e-07  3.02368e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from -130.128 sec. to  108.912 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.16281     ( -0.227681   0.190489 )
Epeak [keV] : 275.758      (   )
Norm@50keV  : 4.77807E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.76 using 59 PHA bins.
# Reduced chi-squared =         0.7814 for     56 degrees of freedom 
# Null hypothesis probability =   8.828605e-01
 
Photon flux (15-150 keV)    in 239 sec: 0.475255 ( -0.017031  0.017069 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.28833e-06 ( -3.29007e-07  3.27382e-07 ) ergs/cm2
 
Band function
Time interval is from -130.128 sec. to  108.912 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.529747   ( -3.8586   -1.16537 )
beta        : -1.37724    ( -7.91899   0.0707842 )
Epeak [keV] : 38.5424      ( -11.6404 90.2399 )
Norm@50keV   : 7.70208E-02    ( -0.0768835   94.6297 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.78 using 59 PHA bins.
# Reduced chi-squared =         0.7596 for     55 degrees of freedom 
# Null hypothesis probability =   9.055492e-01
 
Photon flux (15-150 keV)    in 239 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]    : 18.4148  (  )
R^2/D10^2   : 2.73610E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         250.85 using 59 PHA bins.
# Reduced chi-squared =         4.4009 for     57 degrees of freedom 
# Null hypothesis probability =   3.819919e-26
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.407e-07   2.892e-08
25- 50  2.073e-06   9.918e-08
50-150  5.130e-06   2.605e-07
15-150  7.643e-06   2.856e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 2.02372       (-0.0616733     0.0616434)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          95.04 using 59 PHA bins.
# Reduced chi-squared =          1.667 for     57 degrees of freedom 
# Null hypothesis probability =   1.172557e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.205e-06   4.338e-08
25- 50  2.318e-06   7.911e-08
50-150  5.083e-06   1.685e-07
15-150  8.605e-06   2.772e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.04255        (-1.01685      1.15059)
R1^2/D10^2  : 0.276057        (-0.0928287      0.154758)
kT2 [keV]   : 31.3319        (-3.74783      5.6532)
R2^2/D10^2  : 3.78640E-03    (-0.00159493   0.00210322)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.98 using 59 PHA bins.
# Reduced chi-squared =         0.8905 for     55 degrees of freedom 
# Null hypothesis probability =   7.028018e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.100e-07   1.139e-07
25- 50  2.218e-06   1.754e-07
50-150  6.147e-06   6.345e-07
15-150  9.275e-06   6.979e-07

Peak spectrum fit

Power-law model
Time interval is from   44.188 sec. to   45.188 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.18302     ( -0.190007   0.186621 )
Norm@50keV  : 1.83519E-02    ( -0.00205173   0.00205126 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          72.15 using 59 PHA bins.
# Reduced chi-squared =          1.266 for     57 degrees of freedom 
# Null hypothesis probability =   8.521217e-02
 
Photon flux (15-150 keV)    in 1 sec: 2.14915 ( -0.244462  0.244652 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.87094e-07 ( -2.33927e-08  2.35743e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   44.188 sec. to   45.188 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.998426     ( -0.869415   0.353132 )
Epeak [keV] : 277.761      ( -278.456 -278.456 )
Norm@50keV  : 2.27558E-02    ( -0.00892784   0.0389344 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.97 using 59 PHA bins.
# Reduced chi-squared =          1.285 for     56 degrees of freedom 
# Null hypothesis probability =   7.389224e-02
 
Photon flux (15-150 keV)    in 1 sec: 2.13865 ( -0.24848  0.24804 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.84724e-07 ( -2.6293e-08  2.5141e-08 ) ergs/cm2
 
Band function
Time interval is from   44.188 sec. to   45.188 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.96597   ( -14.6996   -4.96597 )
beta        : -1.33299    ( -0.24056   0.228419 )
Epeak [keV] : 29.3540      ( -9.7336 6.1948 )
Norm@50keV   : 565.377    ( -62.7323   5786.56 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.12 using 59 PHA bins.
# Reduced chi-squared =          1.257 for     55 degrees of freedom 
# Null hypothesis probability =   9.545977e-02
 
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]    : 16.5377  (-2.20507  2.77576)
R^2/D10^2   : 0.187851  (-0.0766665   0.117338)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          86.03 using 59 PHA bins.
# Reduced chi-squared =          1.509 for     57 degrees of freedom 
# Null hypothesis probability =   7.768753e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.054e-08   2.367e-09
25- 50  4.560e-08   8.125e-09
50-150  8.823e-08   1.976e-08
15-150  1.444e-07   2.485e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 8.79214       (-1.0046     1.00457)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          81.57 using 59 PHA bins.
# Reduced chi-squared =          1.431 for     57 degrees of freedom 
# Null hypothesis probability =   1.808370e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.189e-08   1.212e-08
25- 50  4.211e-08   2.327e-08
50-150  9.235e-08   5.050e-08
15-150  1.563e-07   8.670e-08
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 11.8933        (-2.00746      2.61896)
R1^2/D10^2  : 0.464263        (-0.239513      0.394965)
kT2 [keV]   : 200.000        (      )
R2^2/D10^2  : 3.25684E-04    (-0.000109135   9.01461e-05)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.08 using 59 PHA bins.
#Fit statistic : Chi-Squared =          65.73 using 59 PHA bins.
# Reduced chi-squared =          1.201 for     55 degrees of freedom 
# Reduced chi-squared =          1.195 for     55 degrees of freedom 
# Null hypothesis probability =   1.456659e-01
# Null hypothesis probability =   1.525015e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.458e-08   5.148e-09
25- 50  4.644e-08   1.762e-08
50-150  1.254e-07   1.023e-07
15-150  1.864e-07   1.151e-07
Plot creation:
Wed Apr 23 22:00:37 EDT 2014