batgrbproduct analysis for trigger=766194

batgrbproduct Analysis for Trigger=766194

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat Aug  5 05:12:38 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger766194/GCN5_download_cron
======================================================================

  Trigger: 00766194      Segment: 000

  BAT Trigger Time: 523540916.864   [s; MET]
      Trigger Stop: 523540929.024   [s; MET]
               UTC: 2017-08-04T12:01:37.389340    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 6.43307870586649   Dec: -64.7481285423807  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.82
     Image Trigger?:     NO
     Rate S/N Ratio:     10  [ if not an image trigger ]
     Image S/N Ratio:    8.82

  Flight Position:   [ source = BAT ]
    RA: 6.43307870586649   Dec: -64.7481285423807  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 6.40422772090739   Dec: -64.7808134121066  [deg; J2000]  
        { 00h 25m 37.0s , -64d 46' 50.9" }
         +/- 1.34693296121298 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.507019202401743 [arcmin] (formal 1-sigma fit error)
    SNR: 19.8764310919057
 
  Angular difference between Flight and Ground position is 2.095365 arcmin
 
  Partial Coding Fraction: 0.7578125    [ including projection effects ]

  Duration
     T90: 43.3519999980927 +/- 9.76435642449647
        Measured from: 3.80000007152557
                   to: 47.1520000696182     [s; relative to TRIGTIME]
     T50: 17.5199999213219 +/- 3.24083756512033
        Measured from: 12.608000099659
                   to: 30.1280000209808     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 25.0999999642372     
                   to: 26.0999999642372     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 1.97999995946884     
                   to: 60.8999999761581     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.615913   0.786670   0.566724   0.079685
           0.050674   0.053409   0.047366   0.043163 [error]
 Peak      0.038534   0.037650   0.013835   0.015381
           0.006838   0.007384   0.006551   0.005593 [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 2.04e-07 3.39e-07 4.26e-07 1.07e-06 1.27e-06 2.04e-06   erg/cm2
              Error 2.45e-08 2.59e-08 4.64e-08 2.40e-07 1.10e-07 2.82e-07   erg/cm2
Peak flux Power-law 4.15e-01 2.98e-01 1.42e-01 9.49e-02 9.01e-01 9.50e-01   ph/cm2/s
              Error 1.09e-01 6.13e-02 5.29e-02 6.68e-02 1.79e-01 1.95e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.87e-07 3.66e-07 4.34e-07 3.97e-07 1.20e-06 1.38e-06   erg/cm2
              Error 2.83e-08 3.34e-08 5.14e-08 3.16e-07 1.22e-07 3.37e-07   erg/cm2
Peak flux Cutoff-PL 4.17e-01 2.98e-01 1.40e-01 9.20e-02 9.00e-01 9.48e-01   ph/cm2/s
              Error 1.09e-01 9.80e-02 5.52e-02 9.18e-02 1.79e-01 2.26e-01   ph/cm2/s
 
Fluence        Band 1.85e-07 3.63e-07 4.34e-07 4.23e-07 1.20e-06 1.42e-06   erg/cm2
              Error -------- 3.28e-08 4.77e-08 -------- 1.22e-07 --------   erg/cm2
Peak flux      Band 2.55e-01 2.26e-01 7.78e-02 3.48e-02 5.78e-01 5.94e-01   ph/cm2/s
              Error -------- 8.11e-02 -------- -------- 1.73e-01 1.85e-01   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.669    0.132    -      -           2.32e-03 1.89e-04   57.760 57
CPL   0.989    0.564      69.4   43.8      5.34e-03 4.09e-03   52.670 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.074    0.397    -      -           5.80e-03 1.64e-03   78.010 57
CPL   1.968    0.000      12.9    0.0      6.69e-03 0.00e+00   78.070 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: 27.584000 sec.
T50 in the 50-300 keV band: 15.040000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   58.920    1.980   60.900
T90    43.352    3.800   47.152
T50    17.520   12.608   30.128
Peak    1.000   25.100   26.100

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
    6.4042 -64.7808 0.0096   32.4  -24.6       2.1971    19.9  TRIG_00766194       
------------------------------------------
 
Foreground time interval of the image:
  1.980  55.537 (delta_t =  53.557 [sec])
Background time interval of the image:
-196.463   1.980 (delta_t = 198.443 [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    1.980 sec. to   60.900 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.66873     ( -0.13123   0.13346 )
Norm@50keV  : 2.31925E-03    ( -0.000189951   0.000188343 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.76 using 59 PHA bins.
# Reduced chi-squared =          1.013 for     57 degrees of freedom 
# Null hypothesis probability =   4.468494e-01
 
Photon flux (15-150 keV)    in 58.92 sec: 0.304734 ( -0.0233215  0.0233415 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.26861e-06 ( -1.09645e-07  1.10763e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.980 sec. to   60.900 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.988739     ( -0.602534   0.524995 )
Epeak [keV] : 69.3969      ( -14.9309 72.6246 )
Norm@50keV  : 5.33862E-03    ( -0.0024867   0.0057 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.67 using 59 PHA bins.
# Reduced chi-squared =         0.9404 for     56 degrees of freedom 
# Null hypothesis probability =   6.018861e-01
 
Photon flux (15-150 keV)    in 58.92 sec: 0.295809 ( -0.0243  0.024289 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.19615e-06 ( -1.21328e-07  1.23337e-07 ) ergs/cm2
 
Band function
Time interval is from    1.980 sec. to   60.900 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.988822   ( -0.495305   1.45841 )
beta        : -10.0000    ( 10   8.88178e-15 )
Epeak [keV] : 69.3904      ( -13.7531 72.5319 )
Norm@50keV   : 5.33757E-03    ( -0.0024832   0.00570266 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.67 using 59 PHA bins.
# Reduced chi-squared =         0.9575 for     55 degrees of freedom 
# Null hypothesis probability =   5.643478e-01
 
Photon flux (15-150 keV)    in 58.92 sec: 0.296943 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.19838e-06 ( -1.19797e-06  -1.24404e-07 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 12.9380  (-1.17442  1.31086)
R^2/D10^2   : 5.67854E-02  (-0.0168417   0.023576)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          82.87 using 59 PHA bins.
# Reduced chi-squared =          1.454 for     57 degrees of freedom 
# Null hypothesis probability =   1.423496e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.188e-07   1.732e-08
25- 50  4.070e-07   3.635e-08
50-150  4.295e-07   7.109e-08
15-150  9.553e-07   8.602e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 138.771       (-40.0393      -136.169)
Norm        : 1.26605       (-0.111068     0.137909)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.49 using 59 PHA bins.
# Reduced chi-squared =         0.9385 for     57 degrees of freedom 
# Null hypothesis probability =   6.073636e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.927e-07   2.098e-08
25- 50  3.531e-07   5.005e-08
50-150  6.743e-07   2.899e-07
15-150  1.220e-06   2.949e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.30168        (-1.60242      1.94676)
R1^2/D10^2  : 0.453888        (-0.261479      0.833901)
kT2 [keV]   : 20.8242        (-4.02203      7.46567)
R2^2/D10^2  : 7.78194E-03    (-0.00546061   0.00801053)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.83 using 59 PHA bins.
# Reduced chi-squared =         0.9424 for     55 degrees of freedom 
# Null hypothesis probability =   5.964559e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.886e-07   7.611e-08
25- 50  3.599e-07   1.281e-07
50-150  6.412e-07   3.005e-07
15-150  1.190e-06   4.111e-07

Peak spectrum fit

Power-law model
Time interval is from   25.100 sec. to   26.100 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.07375     ( -0.372963   0.421272 )
Norm@50keV  : 5.79963E-03    ( -0.00167688   0.00161015 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          78.01 using 59 PHA bins.
# Reduced chi-squared =          1.369 for     57 degrees of freedom 
# Null hypothesis probability =   3.377066e-02
 
Photon flux (15-150 keV)    in 1 sec: 0.900788 ( -0.179144  0.179181 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.37561e-08 ( -1.35825e-08  1.43723e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   25.100 sec. to   26.100 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.96756     (     )
Epeak [keV] : 12.8719      (   )
Norm@50keV  : 6.69067E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          78.07 using 59 PHA bins.
# Reduced chi-squared =          1.394 for     56 degrees of freedom 
# Null hypothesis probability =   2.728231e-02
 
Photon flux (15-150 keV)    in 1 sec: 0.900467 ( -0.178807  0.178263 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.39984e-08 ( -2.1938e-08  1.38538e-08 ) ergs/cm2
 
Band function
Time interval is from   25.100 sec. to   26.100 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.51713   ( -4.51713   -4.51713 )
beta        : -2.34455    ( -0.756826   0.504686 )
Epeak [keV] : 22.7688      ( -22.7688 6.42553 )
Norm@50keV   : 832.625    ( -163.634   1.05241e+07 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          76.72 using 59 PHA bins.
# Reduced chi-squared =          1.395 for     55 degrees of freedom 
# Null hypothesis probability =   2.810789e-02
 
Photon flux (15-150 keV)    in 1 sec: 0.577862 ( 6.42214  -0.171665 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.2316e-08 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 8.04304  (-1.58166  1.93198)
R^2/D10^2   : 0.995686  (-0.572371   1.36524)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          79.79 using 59 PHA bins.
# Reduced chi-squared =          1.400 for     57 degrees of freedom 
# Null hypothesis probability =   2.485182e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.169e-08   4.188e-09
25- 50  2.066e-08   6.910e-09
50-150  5.521e-09   3.565e-09
15-150  3.787e-08   1.447e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 47.9322       (-20.7694      57.9215)
Norm        : 5.23421       (-1.63513     2.61443)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          78.24 using 59 PHA bins.
# Reduced chi-squared =          1.373 for     57 degrees of freedom 
# Null hypothesis probability =   3.244477e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.267e-08   3.555e-09
25- 50  1.792e-08   5.644e-09
50-150  1.671e-08   9.644e-09
15-150  4.730e-08   1.684e-08
Double BB
R1^2/D10^2  : 9.64328E-05        (-5.49369e-05      0.000310358)
kT2 [keV]   : 7.20656        (-1.21914      1.71666)
R2^2/D10^2  : 1.44000    (-0.83135   2.0872)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          78.24 using 59 PHA bins.
#Fit statistic : Chi-Squared =          72.84 using 59 PHA bins.
#Fit statistic : Chi-Squared =          72.15 using 59 PHA bins.
# Reduced chi-squared =          1.423 for     55 degrees of freedom 
# Reduced chi-squared =          1.324 for     55 degrees of freedom 
# Reduced chi-squared =          1.312 for     55 degrees of freedom 
# Null hypothesis probability =   2.141315e-02
# Null hypothesis probability =   5.393091e-02
# Null hypothesis probability =   6.025277e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.282e-08   9.105e-09
25- 50  1.858e-08   1.097e-08
50-150  1.140e-08   7.050e-09
15-150  4.280e-08   2.157e-08
Plot creation:
Sat Aug  5 05:17:51 EDT 2017