batgrbproduct Analysis for Trigger=597519

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Apr 29 18:20:36 EDT 2014
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger597519/GCN5_download_cron
======================================================================

  Trigger: 00597519      Segment: 000

  BAT Trigger Time: 420417661.952   [s; MET]
      Trigger Stop: 420417666.048   [s; MET]
               UTC: 2014-04-28T22:40:50.007020    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 194.30789595948   Dec: 28.3219605402312  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.54
     Image Trigger?:     NO
     Rate S/N Ratio:     12.369316876853  [ if not an image trigger ]
     Image S/N Ratio:    8.54

  Flight Position:   [ source = BAT ]
    RA: 194.30789595948   Dec: 28.3219605402312  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 194.364578053922   Dec: 28.3313903139756  [deg; J2000]  
        { 12h 57m 27.5s , +28d 19' 53.0" }
         +/- 2.17240054557276 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.898690791972073 [arcmin] (formal 1-sigma fit error)
    SNR: 10.0409698065725
 
  Angular difference between Flight and Ground position is 3.046683 arcmin
 
  Partial Coding Fraction: 0.703125    [ including projection effects ]

  Duration
     T90: 17.4240000247955 +/- 5.89714507661994
        Measured from: -13.2799999117851
                   to: 4.14400011301041     [s; relative to TRIGTIME]
     T50: 6.14400005340576 +/- 2.66923213600554
        Measured from: -3.93599992990494
                   to: 2.20800012350082     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.29999995231628     
                   to: 2.29999995231628     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -14.1920000314713     
                   to: 5.82400000095367     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.140932   0.217149   0.157184   0.007022
           0.028102   0.029377   0.026469   0.025379 [error]
 Peak      0.016391   0.036305   0.021715   0.001203
           0.006651   0.007005   0.006211   0.005682 [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 4.78e-08 8.57e-08 1.18e-07 3.37e-07 3.40e-07 5.89e-07   erg/cm2
              Error 1.12e-08 1.32e-08 2.54e-08 1.49e-07 6.13e-08 1.73e-07   erg/cm2
Peak flux Power-law 2.02e-01 2.12e-01 1.57e-01 1.89e-01 6.45e-01 7.61e-01   ph/cm2/s
              Error 8.15e-02 5.57e-02 5.00e-02 1.21e-01 1.62e-01 1.98e-01   ph/cm2/s
 
Fluence   Cutoff-PL 4.15e-08 9.75e-08 1.20e-07 7.43e-08 3.07e-07 3.33e-07   erg/cm2
              Error 1.29e-08 1.77e-08 3.00e-08 1.51e-07 6.58e-08 1.58e-07   erg/cm2
Peak flux Cutoff-PL 1.68e-01 2.53e-01 1.60e-01 3.44e-02 6.08e-01 6.14e-01   ph/cm2/s
              Error 9.39e-02 8.37e-02 7.07e-02 1.42e-01 1.69e-01 2.21e-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    1.539    0.257    -      -           1.80e-03 2.95e-04   65.980 57
CPL   0.411    1.229      64.7  114.6      7.30e-03 2.02e-02   62.670 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.431    0.414    -      -           5.25e-03 1.36e-03   55.450 57
CPL  -0.160    3.202      60.0  -22.6      3.99e-02 6.55e+00   53.790 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   20.016  -14.192    5.824
T90    17.424  -13.280    4.144
T50     6.144   -3.936    2.208
Peak    1.000    1.300    2.300

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  194.3646 +28.3314 0.0192   21.6  126.9       0.5843    10.0  TRIG_00597519       
------------------------------------------
 
Foreground time interval of the image:
-14.192   5.824 (delta_t =  20.016 [sec])
Background time interval of the image:
-239.952 -14.192 (delta_t = 225.760 [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  -14.192 sec. to    5.824 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.53935     ( -0.253592   0.260441 )
Norm@50keV  : 1.80223E-03    ( -0.000296768   0.000292496 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.98 using 59 PHA bins.
# Reduced chi-squared =          1.158 for     57 degrees of freedom 
# Null hypothesis probability =   1.942428e-01
 
Photon flux (15-150 keV)    in 20.02 sec: 0.227455 ( -0.0346009  0.034613 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.40188e-07 ( -6.05231e-08  6.21076e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -14.192 sec. to    5.824 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.411380     ( -1.39146   1.0659 )
Epeak [keV] : 64.6971      ( -16.946 212.304 )
Norm@50keV  : 7.29788E-03    ( -0.00729788   0.0331809 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.67 using 59 PHA bins.
# Reduced chi-squared =          1.119 for     56 degrees of freedom 
# Null hypothesis probability =   2.516206e-01
 
Photon flux (15-150 keV)    in 20.02 sec: 0.217979 ( -0.035502  0.035637 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.07197e-07 ( -6.32172e-08  6.83703e-08 ) ergs/cm2
 
Band function
Time interval is from  -14.192 sec. to    5.824 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.418877   ( -0.960583   1.21003 )
beta        : -9.37166    ( 9.37167   19.3717 )
Epeak [keV] : 64.9104      ( -16.1873 179.454 )
Norm@50keV   : 7.22107E-03    ( -0.00722139   0.00620952 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.67 using 59 PHA bins.
# Reduced chi-squared =          1.139 for     55 degrees of freedom 
# Null hypothesis probability =   2.227674e-01
 
Photon flux (15-150 keV)    in 20.02 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]    : 13.4904  (-2.26043  2.7822)
R^2/D10^2   : 3.83149E-02  (-0.0186228   0.0350905)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.35 using 59 PHA bins.
# Reduced chi-squared =          1.182 for     57 degrees of freedom 
# Null hypothesis probability =   1.641311e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.957e-08   8.375e-09
25- 50  1.059e-07   2.830e-08
50-150  1.244e-07   3.784e-08
15-150  2.599e-07   5.863e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 175.286       (-86.7333      -175.285)
Norm        : 0.939150       (-0.145342     0.170249)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.33 using 59 PHA bins.
# Reduced chi-squared =          1.129 for     57 degrees of freedom 
# Null hypothesis probability =   2.355309e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.756e-08   2.665e-08
25- 50  9.005e-08   4.861e-08
50-150  1.888e-07   1.069e-07
15-150  3.264e-07   1.830e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.78544        (-3.58905      4.64569)
R1^2/D10^2  : 0.218346        (-0.16978      3.05755)
kT2 [keV]   : 19.9245        (-16.7339      25.21)
R2^2/D10^2  : 7.33748E-03    (-0.00705154   0.0166899)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.07 using 59 PHA bins.
# Reduced chi-squared =          1.129 for     55 degrees of freedom 
# Null hypothesis probability =   2.388386e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.253e-08   2.403e-08
25- 50  9.622e-08   4.855e-08
50-150  1.705e-07   9.742e-08
15-150  3.092e-07   1.622e-07

Peak spectrum fit

Power-law model
Time interval is from    1.300 sec. to    2.300 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.43074     ( -0.413059   0.415683 )
Norm@50keV  : 5.25458E-03    ( -0.00136547   0.00134928 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.45 using 59 PHA bins.
# Reduced chi-squared =         0.9727 for     57 degrees of freedom 
# Null hypothesis probability =   5.335501e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.644512 ( -0.16174  0.161974 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.04674e-08 ( -1.42131e-08  1.47154e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.300 sec. to    2.300 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.159664     ( -4.36605   2.03778 )
Epeak [keV] : 59.9630      ( -14.5016 -59.7941 )
Norm@50keV  : 3.98525E-02    ( -0.0405753   13.0685 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.79 using 59 PHA bins.
# Reduced chi-squared =         0.9605 for     56 degrees of freedom 
# Null hypothesis probability =   5.589839e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.608442 ( -0.168871  0.169409 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.26544e-08 ( -1.50817e-08  1.79183e-08 ) ergs/cm2
 
Band function
Time interval is from    1.300 sec. to    2.300 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.58292   ( -4.58292   -4.58292 )
beta        : -2.13647    ( -1.59976   0.764191 )
Epeak [keV] : 37.8063      ( -37.8063 11.5828 )
Norm@50keV   : 28.9267    ( -7.01962   2.25202e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.04 using 59 PHA bins.
# Reduced chi-squared =         0.9644 for     55 degrees of freedom 
# Null hypothesis probability =   5.498848e-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]    : 13.1300  (-3.06747  4.5291)
R^2/D10^2   : 0.123391  (-0.0807177   0.194447)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.41 using 59 PHA bins.
# Reduced chi-squared =         0.9545 for     57 degrees of freedom 
# Null hypothesis probability =   5.729408e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.511e-09   2.275e-09
25- 50  1.570e-08   6.935e-09
50-150  1.721e-08   9.041e-09
15-150  3.743e-08   1.866e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.361       (-123.785      -199.363)
Norm        : 2.66027       (-0.659606     0.660079)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.99 using 59 PHA bins.
# Reduced chi-squared =         0.9648 for     57 degrees of freedom 
# Null hypothesis probability =   5.507299e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.624e-09   4.078e-09
25- 50  1.274e-08   7.650e-09
50-150  2.795e-08   1.684e-08
15-150  4.731e-08   2.824e-08
Double BB
R1^2/D10^2  : 0.193601        (      )
kT2 [keV]   : 199.261        (      )
R2^2/D10^2  : 6.18738E-05    (-6.18744e-05   0.210831)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.75 using 59 PHA bins.
#Fit statistic : Chi-Squared =          52.72 using 59 PHA bins.
#Fit statistic : Chi-Squared =          52.55 using 59 PHA bins.
# Reduced chi-squared =         0.9592 for     55 degrees of freedom 
# Reduced chi-squared =         0.9585 for     55 degrees of freedom 
# Reduced chi-squared =         0.9554 for     55 degrees of freedom 
# Null hypothesis probability =   5.609186e-01
# Null hypothesis probability =   5.622460e-01
# Null hypothesis probability =   5.688983e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.363e-09   3.474e-09
25- 50  1.515e-08   9.885e-09
50-150  2.683e-08   1.471e-08
15-150  4.734e-08   2.413e-08
Plot creation:
Tue Apr 29 19:05:13 EDT 2014