batgrbproduct analysis for trigger=758766

batgrbproduct Analysis for Trigger=758766

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Jun 27 05:22:47 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger758766/GCN5_download_cron
======================================================================

  Trigger: 00758766      Segment: 000

  BAT Trigger Time: 520162662.4   [s; MET]
      Trigger Stop: 520162663.424   [s; MET]
               UTC: 2017-06-26T09:37:23.124540    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 165.414032854002   Dec: 56.469149639052  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    26.2
     Image Trigger?:     NO
     Rate S/N Ratio:     255.998046867549  [ if not an image trigger ]
     Image S/N Ratio:    26.2

  Flight Position:   [ source = BAT ]
    RA: 165.414032854002   Dec: 56.469149639052  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 165.408175636543   Dec: 56.4792771437914  [deg; J2000]  
        { 11h 01m 38.0s , +56d 28' 45.4" }
         +/- 0.491679938048565 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.114821680993721 [arcmin] (formal 1-sigma fit error)
    SNR: 83.8633039587898
 
  Angular difference between Flight and Ground position is 0.637898 arcmin
 
  Partial Coding Fraction: 0.96875    [ including projection effects ]

  Duration
     T90: 12.9439999461174 +/- 0.339033911075112
        Measured from: -1.23199987411499
                   to: 11.7120000720024     [s; relative to TRIGTIME]
     T50: 6.93999999761581 +/- 0.167092811880064
        Measured from: 0.556000113487244
                   to: 7.49600011110306     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.0639999508857727     
                   to: 0.936000049114227     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -21.3439999818802     
                   to: 17.9240000247955     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     3.942542   5.512119   3.832502   0.768114
           0.050351   0.055942   0.050186   0.041392 [error]
 Peak      0.631437   1.157772   0.977733   0.213978
           0.014549   0.019006   0.018289   0.011188 [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 1.26e-06 2.17e-06 2.87e-06 7.69e-06 8.38e-06 1.40e-05   erg/cm2
              Error 4.57e-08 4.51e-08 5.83e-08 3.66e-07 1.45e-07 3.89e-07   erg/cm2
Peak flux Power-law 6.64e+00 7.60e+00 6.24e+00 8.58e+00 2.36e+01 2.91e+01   ph/cm2/s
              Error 2.88e-01 2.02e-01 1.53e-01 4.43e-01 5.52e-01 6.45e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.15e-06 2.20e-06 2.95e-06 5.09e-06 8.19e-06 1.14e-05   erg/cm2
              Error 6.11e-08 4.77e-08 6.70e-08 8.08e-07 1.64e-07 8.23e-07   erg/cm2
Peak flux Cutoff-PL 5.51e+00 7.86e+00 6.76e+00 4.70e+00 2.28e+01 2.48e+01   ph/cm2/s
              Error 3.66e-01 2.22e-01 1.97e-01 6.27e-01 5.77e-01 8.72e-01   ph/cm2/s
 
Fluence        Band 1.06e-06 2.25e-06 2.86e-06 6.99e-06 8.16e-06 1.32e-05   erg/cm2
              Error -------- 5.47e-08 8.05e-08 7.92e-07 1.63e-07 7.60e-07   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    1.601    0.033    -      -           2.28e-02 3.89e-04   69.520 57
CPL   1.258    0.141     121.3   31.5      3.24e-02 4.58e-03   51.010 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.284    0.038    -      -           1.98e-01 4.35e-03  101.440 57
CPL   0.572    0.175     113.8   15.3      4.14e-01 7.35e-02   45.960 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: 12.672000 sec.
T50 in the 50-300 keV band: 5.504000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   39.268  -21.344   17.924
T90    12.944   -1.232   11.712
T50     6.940    0.556    7.496
Peak    1.000   -0.064    0.936

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  165.4082 +56.4793 0.0023    8.8   79.3      14.1623    83.9  TRIG_00758766       
------------------------------------------
 
Foreground time interval of the image:
-21.344  13.301 (delta_t =  34.645 [sec])
Background time interval of the image:
-239.400 -21.344 (delta_t = 218.056 [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  -21.344 sec. to   17.924 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.60148     ( -0.0331271   0.0331152 )
Norm@50keV  : 2.28240E-02    ( -0.000389501   0.00038948 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.52 using 59 PHA bins.
# Reduced chi-squared =          1.220 for     57 degrees of freedom 
# Null hypothesis probability =   1.234690e-01
 
Photon flux (15-150 keV)    in 39.27 sec: 2.93434 ( -0.0597106  0.0599423 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.38077e-06 ( -1.45111e-07  1.45156e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -21.344 sec. to   17.924 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.25768     ( -0.143249   0.13896 )
Epeak [keV] : 121.277      ( -19.7995 43.127 )
Norm@50keV  : 3.24237E-02    ( -0.004191   0.00496975 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.01 using 59 PHA bins.
# Reduced chi-squared =         0.9109 for     56 degrees of freedom 
# Null hypothesis probability =   6.637602e-01
 
Photon flux (15-150 keV)    in 39.27 sec: 2.84307 ( -0.0683  0.06876 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.19015e-06 ( -1.64738e-07  1.64031e-07 ) ergs/cm2
 
Band function
Time interval is from  -21.344 sec. to   17.924 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.447857   ( -0.838233   1.649 )
beta        : -1.69984    ( -0.262615   0.0584848 )
Epeak [keV] : 51.7056      ( -15.9355 69.7051 )
Norm@50keV   : 0.103800    ( -0.109819   1.39068 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.12 using 59 PHA bins.
# Reduced chi-squared =         0.8749 for     55 degrees of freedom 
# Null hypothesis probability =   7.328795e-01
 
Photon flux (15-150 keV)    in 39.27 sec: 2.78607 ( 4.21393  -0.08097 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.1627e-06 ( -8.16243e-06  -1.62774e-07 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 16.5877  (  )
R^2/D10^2   : 0.216651  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         644.36 using 59 PHA bins.
# Reduced chi-squared =         11.305 for     57 degrees of freedom 
# Null hypothesis probability =  2.145840e-100
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.799e-07   1.748e-08
25- 50  2.081e-06   5.164e-08
50-150  4.056e-06   1.257e-07
15-150  6.617e-06   1.237e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 198.561       (-18.4191      -198.571)
Norm        : 11.7293       (-0.204119     0.244396)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.61 using 59 PHA bins.
# Reduced chi-squared =         0.8879 for     57 degrees of freedom 
# Null hypothesis probability =   7.120546e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.148e-06   2.494e-08
25- 50  2.206e-06   4.379e-08
50-150  4.833e-06   9.228e-08
15-150  8.187e-06   1.492e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.98222        (-0.553217      0.578679)
R1^2/D10^2  : 1.87211        (-0.384631      0.51839)
kT2 [keV]   : 27.6929        (-1.8817      2.3182)
R2^2/D10^2  : 2.71004E-02    (-0.00702488   0.00835685)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.36 using 59 PHA bins.
# Reduced chi-squared =          1.043 for     55 degrees of freedom 
# Null hypothesis probability =   3.876313e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.796e-07   5.616e-08
25- 50  2.273e-06   7.481e-08
50-150  4.826e-06   2.160e-07
15-150  8.078e-06   2.867e-07

Peak spectrum fit

Power-law model
Time interval is from   -0.064 sec. to    0.936 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.28425     ( -0.0376902   0.0376569 )
Norm@50keV  : 0.198337    ( -0.00435092   0.00435047 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         101.44 using 59 PHA bins.
# Reduced chi-squared =         1.7796 for     57 degrees of freedom 
# Null hypothesis probability =   2.675212e-04
 
Photon flux (15-150 keV)    in 1 sec: 23.5949 ( -0.551281  0.551904 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.96757e-06 ( -4.5732e-08  4.57656e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.064 sec. to    0.936 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.572229     ( -0.178518   0.171962 )
Epeak [keV] : 113.782      ( -12.0942 18.501 )
Norm@50keV  : 0.413704    ( -0.0657328   0.0812856 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.96 using 59 PHA bins.
# Reduced chi-squared =         0.8206 for     56 degrees of freedom 
# Null hypothesis probability =   8.286012e-01
 
Photon flux (15-150 keV)    in 1 sec: 22.7674 ( -0.5766  0.578 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.9083e-06 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from   -0.064 sec. to    0.936 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -5.28785E-02   ( -0.471456   0.752037 )
beta        : -1.63410    ( -0.267614   0.127828 )
Epeak [keV] : 76.5716      ( -19.32 28.587 )
Norm@50keV   : 0.810207    ( -0.364665   1.51714 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.28 using 59 PHA bins.
# Reduced chi-squared =         0.7142 for     55 degrees of freedom 
# Null hypothesis probability =   9.458863e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.90207e-06 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 18.6249  (  )
R^2/D10^2   : 1.37313  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         285.49 using 59 PHA bins.
# Reduced chi-squared =         5.0086 for     57 degrees of freedom 
# Null hypothesis probability =   3.891626e-32
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.429e-08   3.970e-09
25- 50  4.471e-07   1.345e-08
50-150  1.135e-06   3.900e-08
15-150  1.676e-06   4.500e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 99.7951       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         226.84 using 59 PHA bins.
# Reduced chi-squared =         3.9796 for     57 degrees of freedom 
# Null hypothesis probability =   4.048068e-22
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.485e-07   5.850e-09
25- 50  4.780e-07   1.190e-08
50-150  1.048e-06   2.600e-08
15-150  1.775e-06   4.500e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 10.2147        (-1.11515      1.15484)
R1^2/D10^2  : 5.90387        (-1.3563      2.03244)
kT2 [keV]   : 32.5754        (-3.89803      6.0799)
R2^2/D10^2  : 0.151773    (-0.0688259   0.0934343)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.00 using 59 PHA bins.
# Reduced chi-squared =         0.8001 for     55 degrees of freedom 
# Null hypothesis probability =   8.561083e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.502e-07   1.150e-08
25- 50  4.759e-07   2.805e-08
50-150  1.281e-06   1.295e-07
15-150  1.907e-06   1.430e-07
Plot creation:
Tue Jun 27 05:27:46 EDT 2017