batgrbproduct Analysis for Trigger=642620

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Jun  8 07:07:36 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger642620/GCN5_download_cron
======================================================================

  Trigger: 00642620      Segment: 000

  BAT Trigger Time: 455356523.264   [s; MET]
      Trigger Stop: 455356523.776   [s; MET]
               UTC: 2015-06-07T07:55:09.579340    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 140.023986719496   Dec: 68.4424007671775  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.81
     Image Trigger?:     NO
     Rate S/N Ratio:     19.6214168703486  [ if not an image trigger ]
     Image S/N Ratio:    10.81

  Flight Position:   [ source = BAT ]
    RA: 140.023986719496   Dec: 68.4424007671775  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 140.014989440786   Dec: 68.436191417008  [deg; J2000]  
        { 09h 20m 03.6s , +68d 26' 10.3" }
         +/- 1.21334878410674 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.48497006599698 [arcmin] (formal 1-sigma fit error)
    SNR: 23.0748489484564
 
  Angular difference between Flight and Ground position is 0.422087 arcmin
 
  Partial Coding Fraction: 0.3125    [ including projection effects ]

  Duration
     T90: 26.2599999308586 +/- 0.713257322255766
        Measured from: 0.204000115394592
                   to: 26.4640000462532     [s; relative to TRIGTIME]
     T50: 13.6999999284744 +/- 5.58122563115831
        Measured from: 1.82000011205673
                   to: 15.5200000405312     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 7.28799998760223     
                   to: 8.28799998760223     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.191999971866608     
                   to: 27.5839999914169     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.846087   1.424228   1.024152   0.237677
           0.064773   0.069046   0.060667   0.048037 [error]
 Peak      0.139096   0.231255   0.163346   0.049705
           0.015515   0.017612   0.015951   0.010630 [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 3.51e-07 6.10e-07 8.10e-07 2.19e-06 2.36e-06 3.96e-06   erg/cm2
              Error 3.41e-08 3.67e-08 5.94e-08 3.39e-07 1.45e-07 3.85e-07   erg/cm2
Peak flux Power-law 1.56e+00 1.62e+00 1.19e+00 1.41e+00 4.92e+00 5.78e+00   ph/cm2/s
              Error 2.32e-01 1.57e-01 1.25e-01 2.86e-01 4.50e-01 5.18e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.17e-07 6.49e-07 8.44e-07 9.96e-07 2.28e-06 2.81e-06   erg/cm2
              Error 4.02e-08 4.51e-08 6.67e-08 5.04e-07 1.57e-07 5.17e-07   erg/cm2
Peak flux Cutoff-PL 1.34e+00 1.77e+00 1.31e+00 6.36e-01 4.83e+00 5.06e+00   ph/cm2/s
              Error 2.67e-01 1.94e-01 1.52e-01 3.41e-01 4.54e-01 5.50e-01   ph/cm2/s
 
Fluence        Band 2.94e-07 6.77e-07 7.97e-07 1.75e-06 2.29e-06 3.53e-06   erg/cm2
              Error 4.56e-08 5.28e-08 6.25e-08 -------- 1.50e-07 4.33e-07   erg/cm2
Peak flux      Band 1.35e+00 1.77e+00 1.31e+00 6.48e-01 4.84e+00 5.07e+00   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    1.592    0.096    -      -           9.09e-03 5.26e-04   48.090 57
CPL   0.994    0.410      84.9   40.1      1.81e-02 8.89e-03   40.900 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.446    0.137    -      -           3.99e-02 3.57e-03   68.430 57
CPL   0.588    0.603      84.4   39.7      1.08e-01 8.36e-02   60.980 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: 26.048000 sec.
T50 in the 50-300 keV band: 13.696000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   27.776   -0.192   27.584
T90    26.260    0.204   26.464
T50    13.700    1.820   15.520
Peak    1.000    7.288    8.288

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  140.0150 +68.4362 0.0083   42.4 -137.5       3.5196    23.1  TRIG_00642620       
------------------------------------------
 
Foreground time interval of the image:
 -0.192  27.584 (delta_t =  27.776 [sec])
Background time interval of the image:
-239.264  -0.192 (delta_t = 239.072 [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   -0.192 sec. to   27.584 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.59246     ( -0.0960716   0.0966571 )
Norm@50keV  : 9.08682E-03    ( -0.000526286   0.00052522 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.09 using 59 PHA bins.
# Reduced chi-squared =         0.8437 for     57 degrees of freedom 
# Null hypothesis probability =   7.936762e-01
 
Photon flux (15-150 keV)    in 27.78 sec: 1.16498 ( -0.0691869  0.0693206 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.36297e-06 ( -1.44815e-07  1.45302e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.192 sec. to   27.584 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.993671     ( -0.429977   0.390596 )
Epeak [keV] : 84.9428      ( -17.2774 62.839 )
Norm@50keV  : 1.81411E-02    ( -0.00645538   0.0113316 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.90 using 59 PHA bins.
# Reduced chi-squared =         0.7304 for     56 degrees of freedom 
# Null hypothesis probability =   9.351604e-01
 
Photon flux (15-150 keV)    in 27.78 sec: 1.13482 ( -0.07173  0.07182 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.27854e-06 ( -1.56904e-07  1.56601e-07 ) ergs/cm2
 
Band function
Time interval is from   -0.192 sec. to   27.584 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.993651   ( -0.335905   0.468238 )
beta        : -10.0000    ( 10   7.10543e-15 )
Epeak [keV] : 84.9269      ( -13.6633 62.8242 )
Norm@50keV   : 1.81403E-02    ( -0.0064531   0.011342 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.90 using 59 PHA bins.
# Reduced chi-squared =         0.7436 for     55 degrees of freedom 
# Null hypothesis probability =   9.214872e-01
 
Photon flux (15-150 keV)    in 27.78 sec: 1.13485 ( 5.86515  -0.07175 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.2928e-06 ( -2.29261e-06  -1.49579e-07 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 14.4704  (-0.999304  1.07867)
R^2/D10^2   : 0.148310  (-0.0341877   0.0440002)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          98.56 using 59 PHA bins.
# Reduced chi-squared =          1.729 for     57 degrees of freedom 
# Null hypothesis probability =   5.260739e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.816e-07   1.835e-08
25- 50  6.974e-07   5.320e-08
50-150  9.775e-07   1.158e-07
15-150  1.857e-06   1.251e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 178.351       (-43.3529      -177.678)
Norm        : 4.77429       (-0.297794     0.327784)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.09 using 59 PHA bins.
# Reduced chi-squared =         0.7384 for     57 degrees of freedom 
# Null hypothesis probability =   9.302080e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.348e-07   2.709e-08
25- 50  6.354e-07   1.140e-07
50-150  1.341e-06   4.996e-07
15-150  2.311e-06   6.220e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.90057        (-1.29816      1.41233)
R1^2/D10^2  : 0.835665        (-0.33392      0.651271)
kT2 [keV]   : 26.7852        (-4.81228      8.20577)
R2^2/D10^2  : 1.18001E-02    (-0.00731858   0.0137053)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.34 using 59 PHA bins.
# Reduced chi-squared =         0.6790 for     55 degrees of freedom 
# Null hypothesis probability =   9.672393e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.989e-07   6.444e-08
25- 50  6.754e-07   1.174e-07
50-150  1.324e-06   5.702e-07
15-150  2.299e-06   6.273e-07

Peak spectrum fit

Power-law model
Time interval is from    7.288 sec. to    8.288 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.44617     ( -0.13636   0.136738 )
Norm@50keV  : 3.99300E-02    ( -0.00357226   0.0035684 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.43 using 59 PHA bins.
# Reduced chi-squared =          1.200 for     57 degrees of freedom 
# Null hypothesis probability =   1.428869e-01
 
Photon flux (15-150 keV)    in 1 sec: 4.91617 ( -0.449962  0.450563 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.82371e-07 ( -3.65607e-08  3.66921e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    7.288 sec. to    8.288 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.587897     ( -0.649025   0.557334 )
Epeak [keV] : 84.4160      ( -18.2239 61.174 )
Norm@50keV  : 0.107853    ( -0.0503235   0.116965 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.98 using 59 PHA bins.
# Reduced chi-squared =          1.089 for     56 degrees of freedom 
# Null hypothesis probability =   3.014523e-01
 
Photon flux (15-150 keV)    in 1 sec: 4.83173 ( -0.45415  0.45458 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.69484e-07 ( -3.886e-08  3.8605e-08 ) ergs/cm2
 
Band function
Time interval is from    7.288 sec. to    8.288 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.587710   ( -0.514425   0.50774 )
beta        : -10.0000    ( 10   0 )
Epeak [keV] : 84.4014      ( -14.7178 61.1632 )
Norm@50keV   : 0.107868    ( -0.0502893   0.117034 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.98 using 59 PHA bins.
# Reduced chi-squared =          1.109 for     55 degrees of freedom 
# Null hypothesis probability =   2.695732e-01
 
Photon flux (15-150 keV)    in 1 sec: 4.83558 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.74336e-07 ( -3.74329e-07  -3.7196e-08 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 15.3970  (-1.61027  1.83203)
R^2/D10^2   : 0.542067  (-0.177865   0.25811)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          80.82 using 59 PHA bins.
# Reduced chi-squared =          1.418 for     57 degrees of freedom 
# Null hypothesis probability =   2.068066e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.678e-08   4.295e-09
25- 50  1.090e-07   1.414e-08
50-150  1.778e-07   2.745e-08
15-150  3.135e-07   3.445e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 20.4628       (-1.81912     1.81913)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.78 using 59 PHA bins.
# Reduced chi-squared =          1.154 for     57 degrees of freedom 
# Null hypothesis probability =   1.990080e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.118e-08   5.255e-09
25- 50  9.846e-08   1.621e-08
50-150  2.159e-07   7.996e-08
15-150  3.656e-07   8.115e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.12577        (-2.17498      1.25322)
R1^2/D10^2  : 2.19119        (-1.06085      2.64568)
kT2 [keV]   : 30.1619        (-8.07149      22.3242)
R2^2/D10^2  : 3.48540E-02    (-0.0292677   0.0826102)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.37 using 59 PHA bins.
# Reduced chi-squared =          1.043 for     55 degrees of freedom 
# Null hypothesis probability =   3.874790e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.072e-08   1.737e-08
25- 50  1.083e-07   4.004e-08
50-150  2.269e-07   1.053e-07
15-150  3.759e-07   1.372e-07
Plot creation:
Mon Jun  8 07:11:19 EDT 2015