batgrbproduct Analysis for Trigger=609878

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Aug 19 07:01:26 EDT 2014
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger609878/GCN5_download_cron
======================================================================

  Trigger: 00609878      Segment: 000

  BAT Trigger Time: 430074616   [s; MET]
      Trigger Stop: 430074952   [s; MET]
               UTC: 2014-08-18T17:10:03.587900    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 258.160760473972   Dec: -37.6565644153551  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    15.68
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    15.68

  Flight Position:   [ source = BAT ]
    RA: 258.160760473972   Dec: -37.6565644153551  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 258.11698576869   Dec: -37.6665817758277  [deg; J2000]  
        { 17h 12m 28.1s , -37d 39' 59.7" }
         +/- 2.25717962875222 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.23253590371199 [arcmin] (formal 1-sigma fit error)
    SNR: 9.50657152106955
 
  Angular difference between Flight and Ground position is 2.164341 arcmin
 
  Partial Coding Fraction: 0.875    [ including projection effects ]

  Duration
     T90: 8.84799998998642 +/- 2.43286822237248
        Measured from: 129.160000145435
                   to: 138.008000135422     [s; relative to TRIGTIME]
     T50: 3.7600000500679 +/- 2.55939992813286
        Measured from: 131.432000100613
                   to: 135.192000150681     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 133.403999984264     
                   to: 134.403999984264     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 128.663999974728     
                   to: 138.487999975681     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.265888   0.026214  -0.001212   0.016456
           0.020559   0.017838   0.014535   0.012348 [error]
 Peak      0.044068   0.010505  -0.001155   0.006220
           0.006589   0.005768   0.004582   0.003878 [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 7.81e-08 2.00e-08 2.70e-09 4.10e-10 1.01e-07 1.01e-07   erg/cm2
              Error 1.24e-08 7.97e-09 2.42e-09 7.28e-10 1.85e-08 1.86e-08   erg/cm2
Peak flux Power-law 3.96e-01 1.09e-01 1.60e-02 2.66e-03 5.23e-01 5.23e-01   ph/cm2/s
              Error 1.05e-01 5.22e-02 1.86e-02 5.44e-03 1.42e-01 1.43e-01   ph/cm2/s
 
Fluence   Cutoff-PL 8.32e-08 1.34e-08 5.30e-11 3.56e-16 9.67e-08 9.67e-08   erg/cm2
              Error 1.38e-08 9.91e-09 9.77e-10 3.24e-10 1.64e-08 1.64e-08   erg/cm2
Peak flux Cutoff-PL 4.13e-01 1.10e-01 3.64e-03 6.47e-06 5.26e-01 5.26e-01   ph/cm2/s
              Error 8.72e-02 8.86e-02 1.59e-02 4.13e-03 1.39e-01 1.39e-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    4.890    0.691    -      -           2.29e-04 1.62e-04   67.410 57
CPL  -0.474    0.000       9.5    0.0      6.45e+00 0.00e+00   64.910 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    3.768    0.879    -      -           1.03e-03 8.41e-04   62.220 57
CPL   1.534    0.000       5.2    0.0      5.38e-02 0.00e+00   61.180 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    9.824  128.664  138.488
T90     8.848  129.160  138.008
T50     3.760  131.432  135.192
Peak    1.000  133.404  134.404

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  258.1170 -37.6666 0.0201   21.1 -138.7       0.3245     9.5  TRIG_00609878       
------------------------------------------
 
Foreground time interval of the image:
128.664 138.488 (delta_t =   9.824 [sec])
Background time interval of the image:
-239.000 128.664 (delta_t = 367.664 [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  128.664 sec. to  138.488 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 4.89018     ( -0.638633   0.74267 )
Norm@50keV  : 2.29132E-04    ( -0.000125161   0.000198788 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.41 using 59 PHA bins.
# Reduced chi-squared =          1.183 for     57 degrees of freedom 
# Null hypothesis probability =   1.628732e-01
 
Photon flux (15-150 keV)    in 9.824 sec: 0.318502 ( -0.0513639  0.0514694 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.01085e-07 ( -1.8131e-08  1.88738e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  128.664 sec. to  138.488 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.473757     (     )
Epeak [keV] : 9.54528      (   )
Norm@50keV  : 6.44879    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.91 using 59 PHA bins.
# Reduced chi-squared =          1.159 for     56 degrees of freedom 
# Null hypothesis probability =   1.940175e-01
 
Photon flux (15-150 keV)    in 9.824 sec: 0.319633 ( -0.049941  0.050135 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.66803e-08 ( -1.60182e-08  1.68173e-08 ) ergs/cm2
 
Band function
Time interval is from  128.664 sec. to  138.488 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -8.44439   ( 5.987   8.44439 )
beta        : -4.89062    ( -0.741754   0.638935 )
Epeak [keV] : 309.622      ( -309.622 -309.622 )
Norm@50keV   : 3.11287E-02    ( -0.0169997   0.0270265 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.41 using 59 PHA bins.
# Reduced chi-squared =          1.226 for     55 degrees of freedom 
# Null hypothesis probability =   1.216506e-01
 
Photon flux (15-150 keV)    in 9.824 sec: 0.166053 ( 6.83395  -0.166053 ) 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]    : 2.98016  (-0.4248  0.499691)
R^2/D10^2   : 47.6596  (-29.6418   85.7363)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.01 using 59 PHA bins.
# Reduced chi-squared =          1.141 for     57 degrees of freedom 
# Null hypothesis probability =   2.177576e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.399e-08   4.712e-08
25- 50  1.196e-08   5.931e-09
50-150  1.825e-11   1.854e-11
15-150  9.596e-08   5.315e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 6.02291       (-1.30884      1.79671)
Norm        : 39.8236       (-20.8208     50.0741)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.10 using 59 PHA bins.
# Reduced chi-squared =          1.142 for     57 degrees of freedom 
# Null hypothesis probability =   2.155486e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.207e-08   3.516e-08
25- 50  1.538e-08   8.132e-09
50-150  1.884e-10   1.817e-10
15-150  9.764e-08   3.434e-08
Double BB
R1^2/D10^2  : 21.9729        (-29.6386      85.7396)
kT2 [keV]   : 2.04305        (      )
R2^2/D10^2  : 152.244    (   )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.01 using 59 PHA bins.
#Fit statistic : Chi-Squared =          64.94 using 59 PHA bins.
#Fit statistic : Chi-Squared =          64.90 using 59 PHA bins.
# Reduced chi-squared =          1.182 for     55 degrees of freedom 
# Reduced chi-squared =          1.181 for     55 degrees of freedom 
# Reduced chi-squared =          1.180 for     55 degrees of freedom 
# Null hypothesis probability =   1.672746e-01
# Null hypothesis probability =   1.689055e-01
# Null hypothesis probability =   1.697522e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00

Peak spectrum fit

Power-law model
Time interval is from  133.404 sec. to  134.404 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.76826     ( -0.735667   1.02146 )
Norm@50keV  : 1.03434E-03    ( -0.000687499   0.000993932 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.22 using 59 PHA bins.
# Reduced chi-squared =          1.092 for     57 degrees of freedom 
# Null hypothesis probability =   2.957807e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.522606 ( -0.141744  0.142886 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.93589e-08 ( -6.25386e-09  7.04378e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  133.404 sec. to  134.404 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.53375     (     )
Epeak [keV] : 5.15936      (   )
Norm@50keV  : 5.37546E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.18 using 59 PHA bins.
# Reduced chi-squared =          1.093 for     56 degrees of freedom 
# Null hypothesis probability =   2.952384e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.526185 ( -0.138148  0.139372 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.81922e-08 ( -5.5582e-09  6.6969e-09 ) ergs/cm2
 
Band function
Time interval is from  133.404 sec. to  134.404 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.60592   ( -6.82757   1.6059 )
beta        : -9.37167    ( 9.37167   19.37 )
Epeak [keV] : 4.59355      ( -4.77612 14.6895 )
Norm@50keV   : 4.57471E-02    ( -0.0473047   1.16283e+07 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.19 using 59 PHA bins.
# Reduced chi-squared =          1.113 for     55 degrees of freedom 
# Null hypothesis probability =   2.634263e-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]    : 3.96337  (-0.964539  1.2522)
R^2/D10^2   : 14.6925  (-14.6926   53.2815)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.46 using 59 PHA bins.
# Reduced chi-squared =          1.078 for     57 degrees of freedom 
# Null hypothesis probability =   3.194290e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.278e-08   7.555e-09
25- 50  4.494e-09   2.898e-09
50-150  5.166e-11   5.390e-11
15-150  1.732e-08   9.880e-09
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 10.4194       (-4.08084      7.33189)
Norm        : 17.0419       (-9.77273     33.9558)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.17 using 59 PHA bins.
# Reduced chi-squared =          1.073 for     57 degrees of freedom 
# Null hypothesis probability =   3.285550e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.230e-08   7.163e-09
25- 50  5.591e-09   3.482e-09
50-150  4.280e-10   4.480e-10
15-150  1.832e-08   1.086e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.32591        (-3.31319      1.78202)
R1^2/D10^2  : 29.3999        (-30.2168      -30.2168)
kT2 [keV]   : 7.15127        (-7.06206      -7.06206)
R2^2/D10^2  : 0.282144    (-0.338296   58.8567)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.03 using 59 PHA bins.
# Reduced chi-squared =          1.110 for     55 degrees of freedom 
# Null hypothesis probability =   2.680659e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.251e-08   7.585e-09
25- 50  5.471e-09   3.377e-09
50-150  6.122e-10   6.460e-10
15-150  1.860e-08   1.248e-08
Plot creation:
Tue Aug 19 07:03:54 EDT 2014