batgrbproduct Analysis for Trigger=652603

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Aug 19 15:42:46 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger652603/GCN5_download_cron
======================================================================

  Trigger: 00652603      Segment: 000

  BAT Trigger Time: 461590607.936   [s; MET]
      Trigger Stop: 461590608.96   [s; MET]
               UTC: 2015-08-18T11:36:32.925720    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 230.446048357731   Dec: 68.3422608837458  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.04
     Image Trigger?:     NO
     Rate S/N Ratio:     12.9228479833201  [ if not an image trigger ]
     Image S/N Ratio:    8.04

  Flight Position:   [ source = BAT ]
    RA: 230.446048357731   Dec: 68.3422608837458  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 230.348408872635   Dec: 68.3415484183389  [deg; J2000]  
        { 15h 21m 23.6s , +68d 20' 29.6" }
         +/- 1.04397831279502 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.359015801193477 [arcmin] (formal 1-sigma fit error)
    SNR: 28.6033084961073
 
  Angular difference between Flight and Ground position is 2.162554 arcmin
 
  Partial Coding Fraction: 0.3632812    [ including projection effects ]

  Duration
     T90: 118.967999994755 +/- 22.1347496117046
        Measured from: -3.4799998998642
                   to: 115.488000094891     [s; relative to TRIGTIME]
     T50: 41.0119999647141 +/- 6.65706396738856
        Measured from: 3.48000013828278
                   to: 44.4920001029968     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.56800001859665     
                   to: 2.56800001859665     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -7.91200000047684     
                   to: 176.019999980927     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     2.388568   2.578449   1.468425   0.406450
           0.093618   0.094625   0.083413   0.073951 [error]
 Peak      0.095903   0.096160   0.061176   0.003256
           0.012018   0.012085   0.010670   0.008403 [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 8.91e-07 1.22e-06 1.24e-06 2.29e-06 4.09e-06 5.64e-06   erg/cm2
              Error 6.93e-08 5.59e-08 8.75e-08 3.44e-07 1.99e-07 4.14e-07   erg/cm2
Peak flux Power-law 1.04e+00 7.90e-01 4.02e-01 2.94e-01 2.37e+00 2.52e+00   ph/cm2/s
              Error 2.22e-01 1.10e-01 9.10e-02 1.30e-01 3.35e-01 3.52e-01   ph/cm2/s
 
Fluence   Cutoff-PL 8.88e-07 1.22e-06 1.24e-06 2.11e-06 4.08e-06 5.47e-06   erg/cm2
              Error 6.90e-08 5.53e-08 6.67e-08 4.37e-07 1.96e-07 5.78e-07   erg/cm2
Peak flux Cutoff-PL 1.03e+00 7.96e-01 4.03e-01 2.68e-01 2.36e+00 2.50e+00   ph/cm2/s
              Error 2.40e-01 1.27e-01 9.32e-02 2.18e-01 3.42e-01 4.02e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band -------- -------- -------- -------- -------- --------   ph/cm2/s
              Error -------- -------- -------- -------- -------- --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.980    0.091    -      -           2.41e-03 1.21e-04   50.870 57
CPL   2.030    0.092      21.5    0.0      2.24e-03 0.00e+00   50.350 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.975    0.270    -      -           1.60e-02 2.71e-03   60.130 57
CPL   1.910    0.675      61.9    0.0      1.73e-02 0.00e+00   60.110 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: 130.176000 sec.
T50 in the 50-300 keV band: 31.360000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  183.932   -7.912  176.020
T90   118.968   -3.480  115.488
T50    41.012    3.480   44.492
Peak    1.000    1.568    2.568

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  230.3484 +68.3415 0.0068   43.9 -149.5       3.2810    28.6  TRIG_00652603       
------------------------------------------
 
Foreground time interval of the image:
 -7.912  11.665 (delta_t =  19.577 [sec])
Background time interval of the image:
-65.735  -7.912 (delta_t =  57.823 [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   -7.912 sec. to  176.020 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.98025     ( -0.0905839   0.0920798 )
Norm@50keV  : 2.41321E-03    ( -0.000121986   0.000120888 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.87 using 59 PHA bins.
# Reduced chi-squared =         0.8925 for     57 degrees of freedom 
# Null hypothesis probability =   7.028247e-01
 
Photon flux (15-150 keV)    in 183.9 sec: 0.358734 ( -0.0173564  0.0174492 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.08867e-06 ( -1.98338e-07  1.99188e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -7.912 sec. to  176.020 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.02972     ( -0.0908773   0.0925498 )
Epeak [keV] : 21.4846      (   )
Norm@50keV  : 2.23925E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.35 using 59 PHA bins.
# Reduced chi-squared =         0.8990 for     56 degrees of freedom 
# Null hypothesis probability =   6.878818e-01
 
Photon flux (15-150 keV)    in 183.9 sec: 0.358555 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.07949e-06 ( -1.90097e-07  2.01665e-07 ) ergs/cm2
 
Band function
Time interval is from   -7.912 sec. to  176.020 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.95679   ( -4.95679   -4.95679 )
beta        : -2.00047    ( -0.102684   0.0945483 )
Epeak [keV] : 19.3140      ( -19.314 3.31246 )
Norm@50keV   : 1898.06    ( -85.0385   2.77557e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.20 using 59 PHA bins.
# Reduced chi-squared =         0.9128 for     55 degrees of freedom 
# Null hypothesis probability =   6.580519e-01
 
Photon flux (15-150 keV)    in 183.9 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]    : 11.2039  (  )
R^2/D10^2   : 9.98746E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         212.58 using 59 PHA bins.
# Reduced chi-squared =         3.7295 for     57 degrees of freedom 
# Null hypothesis probability =   8.652119e-20
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.834e-07   4.285e-08
25- 50  1.399e-06   7.200e-08
50-150  1.006e-06   1.155e-07
15-150  2.889e-06   1.545e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 81.2434       (-12.3224      15.9979)
Norm        : 1.61663       (-0.126632     0.1416)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.10 using 59 PHA bins.
# Reduced chi-squared =          1.177 for     57 degrees of freedom 
# Null hypothesis probability =   1.692607e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.722e-07   5.195e-08
25- 50  1.276e-06   5.885e-08
50-150  1.820e-06   1.887e-07
15-150  3.868e-06   2.198e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.08229        (-0.701056      0.755487)
R1^2/D10^2  : 0.845306        (-0.308838      0.541603)
kT2 [keV]   : 25.2671        (-3.836      5.54034)
R2^2/D10^2  : 3.57350E-03    (-0.00179585   0.00304128)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.51 using 59 PHA bins.
# Reduced chi-squared =         0.9729 for     55 degrees of freedom 
# Null hypothesis probability =   5.318249e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.515e-07   1.178e-07
25- 50  1.214e-06   1.120e-07
50-150  2.031e-06   3.159e-07
15-150  4.096e-06   4.542e-07

Peak spectrum fit

Power-law model
Time interval is from    1.568 sec. to    2.568 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.97524     ( -0.261015   0.279824 )
Norm@50keV  : 1.59592E-02    ( -0.00276283   0.00266576 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.13 using 59 PHA bins.
# Reduced chi-squared =          1.055 for     57 degrees of freedom 
# Null hypothesis probability =   3.631244e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.36704 ( -0.334243  0.334774 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.47002e-07 ( -2.37839e-08  2.42547e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.568 sec. to    2.568 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.90970     ( -1.04104   0.308879 )
Epeak [keV] : 61.9324      (   )
Norm@50keV  : 1.73475E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.11 using 59 PHA bins.
# Reduced chi-squared =          1.073 for     56 degrees of freedom 
# Null hypothesis probability =   3.291546e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.36021 ( -0.34444  0.33943 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.46241e-07 ( -2.6248e-08  2.4817e-08 ) ergs/cm2
 
Band function
Time interval is from    1.568 sec. to    2.568 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.980491   ( 0.97362   0.97362 )
beta        : -1.98380    ( 1.98479   0.269191 )
Epeak [keV] : 20.6122      ( -20.1718 -20.1718 )
Norm@50keV   : 0.107626    ( -0.11625   5.22661e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.10 using 59 PHA bins.
# Reduced chi-squared =          1.093 for     55 degrees of freedom 
# Null hypothesis probability =   2.962985e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.46964e-07 ( -1.46957e-07  -2.4828e-08 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 10.5103  (-1.76951  2.20751)
R^2/D10^2   : 0.883494  (-0.457671   0.915423)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          76.12 using 59 PHA bins.
# Reduced chi-squared =          1.335 for     57 degrees of freedom 
# Null hypothesis probability =   4.614203e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.018e-08   5.340e-09
25- 50  5.374e-08   1.111e-08
50-150  3.234e-08   1.105e-08
15-150  1.063e-07   2.094e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 75.9706       (-28.0046      60.2845)
Norm        : 11.1756       (-2.2262     3.03438)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.15 using 59 PHA bins.
# Reduced chi-squared =          1.073 for     57 degrees of freedom 
# Null hypothesis probability =   3.293664e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.889e-08   5.575e-09
25- 50  4.696e-08   7.565e-09
50-150  6.398e-08   3.485e-08
15-150  1.398e-07   3.656e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.73642        (-1.76851      2.74843)
R1^2/D10^2  : 14.1907        (-11.6121      112.261)
kT2 [keV]   : 19.2004        (-6.04252      14.0786)
R2^2/D10^2  : 7.16064E-02    (-0.0619073   0.245895)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.74 using 59 PHA bins.
# Reduced chi-squared =          1.104 for     55 degrees of freedom 
# Null hypothesis probability =   2.769029e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.282e-08   1.792e-08
25- 50  4.081e-08   1.929e-08
50-150  6.848e-08   4.099e-08
15-150  1.421e-07   7.083e-08
Plot creation:
Wed Aug 19 15:50:21 EDT 2015