batgrbproduct analysis for trigger=779351

batgrbproduct Analysis for Trigger=779351

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Oct 17 07:13:30 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger779351/GCN5_download_cron
======================================================================

  Trigger: 00779351      Segment: 000

  BAT Trigger Time: 529833229.376   [s; MET]
      Trigger Stop: 529833229.888   [s; MET]
               UTC: 2017-10-16T07:53:29.527620    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 40.9080325801543   Dec: 61.4331455489146  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    7.31
     Image Trigger?:     NO
     Rate S/N Ratio:     12  [ if not an image trigger ]
     Image S/N Ratio:    7.31

  Flight Position:   [ source = BAT ]
    RA: 40.9080325801543   Dec: 61.4331455489146  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 41.0110812245185   Dec: 61.4280419149056  [deg; J2000]  
        { 02h 44m 02.7s , +61d 25' 41.0" }
         +/- nan [arcmin] (estimated 90% radius based on SNR)
         +/- 2.19398296311025 [arcmin] (formal 1-sigma fit error)
    SNR: -5.28811288657065
 
  Angular difference between Flight and Ground position is 2.972628 arcmin
 
  Partial Coding Fraction: 1    [ including projection effects ]

  Duration
     T90: 1061 +/- 668.434738774101
        Measured from: -182.375999867916
                   to: 878.624000132084     [s; relative to TRIGTIME]
     T50: 634 +/- 611.032732347458
        Measured from: 47.6240001320839
                   to: 681.624000132084     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 173.624000012875     
                   to: 174.624000012875     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -236.375999987125     
                   to: 960.624000012875     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total    48.891690  39.088252   9.065133   0.641169
           0.206523   0.207254   0.167909   0.142578 [error]
 Peak      0.082555   0.078767   0.019465  -0.001864
           0.006663   0.006775   0.005303   0.004189 [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 1.99e-05 1.47e-05 7.25e-06 5.08e-06 4.42e-05 4.69e-05   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux Power-law 8.54e-01 4.93e-01 1.80e-01 8.70e-02 1.57e+00 1.61e+00   ph/cm2/s
              Error 1.13e-01 5.47e-02 3.90e-02 3.40e-02 1.62e-01 1.67e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.50e-05 1.59e-05 6.75e-06 9.68e-07 3.85e-05 3.87e-05   erg/cm2
              Error 8.14e-07 3.20e-07 2.33e-07 1.89e-07 1.05e-06 1.08e-06   erg/cm2
Peak flux Cutoff-PL 7.88e-01 5.66e-01 1.50e-01 1.29e-02 1.52e+00 1.52e+00   ph/cm2/s
              Error 1.28e-01 7.94e-02 5.08e-02 2.73e-02 1.66e-01 1.67e-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    3.021    0.000    -      -           3.05e-03 0.00e+00  241.750 57
CPL   1.413    0.225      15.9    4.0      2.21e-02 6.20e-03   38.990 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.452    0.218    -      -           8.24e-03 1.36e-03   62.290 57
CPL   1.040    1.179      24.5    0.0      6.35e-02 0.00e+00   57.240 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: 17.728000 sec.
T50 in the 50-300 keV band: 8.192000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100 1197.000 -236.376  960.624
T90  1061.000 -182.376  878.624
T50   634.000   47.624  681.624
Peak    1.000  173.624  174.624

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   41.0111 +61.4280 0.0364    0.5  -39.3      -8.5112    -5.3  TRIG_00779351       
------------------------------------------
 
Foreground time interval of the image:
-236.376  15.225 (delta_t = 251.601 [sec])
Background time interval of the image:
-239.376 -236.376 (delta_t =   3.000 [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
Multiple GTIs in the spectrum
tstart tstop
-236.376000 284.574000
285.624000 960.624000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.02113     (     )
Norm@50keV  : 3.04760E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         241.75 using 59 PHA bins.
# Reduced chi-squared =         4.2412 for     57 degrees of freedom 
# Null hypothesis probability =   1.321452e-24
 
Photon flux (15-150 keV)    in 1196 sec: 0.851138 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.42252e-05 ( 0  0 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-236.376000 284.574000
285.624000 960.624000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.41306     ( -0.230505   0.220296 )
Epeak [keV] : 15.8534      ( -4.42112 3.5189 )
Norm@50keV  : 2.20921E-02    ( -0.00519789   0.00720535 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.99 using 59 PHA bins.
# Reduced chi-squared =         0.6963 for     56 degrees of freedom 
# Null hypothesis probability =   9.592160e-01
 
Photon flux (15-150 keV)    in 1196 sec: 0.714814 ( -0.025388  0.025767 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.85193e-05 ( -1.04303e-06  1.05332e-06 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
-236.376000 284.574000
285.624000 960.624000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.36217   ( -0.132896   0.284019 )
beta        : -4.54907    ( 4.57555   0.611457 )
Epeak [keV] : 16.6039      ( -4.47887 3.69223 )
Norm@50keV   : 2.36734E-02    ( -0.00603206   0.0105801 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.03 using 59 PHA bins.
# Reduced chi-squared =         0.6914 for     55 degrees of freedom 
# Null hypothesis probability =   9.606090e-01
 
Photon flux (15-150 keV)    in 1196 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]    : 8.59656  (  )
R^2/D10^2   : 0.499386  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         358.51 using 59 PHA bins.
# Reduced chi-squared =         6.2896 for     57 degrees of freedom 
# Null hypothesis probability =   2.721676e-45
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.376e-06   3.140e-07
25- 50  1.655e-05   3.289e-07
50-150  5.475e-06   2.057e-07
15-150  3.040e-05   5.980e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 26.9608       (-0.797164      0.832198)
Norm        : 6.46597       (-0.30111     0.315204)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.84 using 59 PHA bins.
# Reduced chi-squared =         0.6815 for     57 degrees of freedom 
# Null hypothesis probability =   9.685673e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.484e-05   4.605e-07
25- 50  1.594e-05   3.050e-07
50-150  7.554e-06   2.924e-07
15-150  3.834e-05   6.937e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.40377        (-0.383764      0.385617)
R1^2/D10^2  : 2.88758        (-0.695743      1.03365)
kT2 [keV]   : 12.5516        (-0.769807      0.939532)
R2^2/D10^2  : 5.39368E-02    (-0.0184821   0.0242045)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.43 using 59 PHA bins.
# Reduced chi-squared =         0.6806 for     55 degrees of freedom 
# Null hypothesis probability =   9.664336e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.350e-05   9.149e-07
25- 50  1.607e-05   6.997e-07
50-150  7.485e-06   5.406e-07
15-150  3.706e-05   1.680e-06

Peak spectrum fit

Power-law model
Time interval is from  173.624 sec. to  174.624 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.45176     ( -0.208242   0.226769 )
Norm@50keV  : 8.24419E-03    ( -0.00136406   0.00134853 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.29 using 59 PHA bins.
# Reduced chi-squared =          1.093 for     57 degrees of freedom 
# Null hypothesis probability =   2.935834e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.57287 ( -0.16177  0.161771 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.14151e-08 ( -1.02045e-08  1.04972e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  173.624 sec. to  174.624 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.03965     ( -1.4018   0.955633 )
Epeak [keV] : 24.5437      (   )
Norm@50keV  : 6.34586E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.24 using 59 PHA bins.
# Reduced chi-squared =          1.022 for     56 degrees of freedom 
# Null hypothesis probability =   4.287579e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.51525 ( -0.16509  0.16595 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.29706e-08 ( -9.7814e-09  1.12923e-08 ) ergs/cm2
 
Band function
Time interval is from  173.624 sec. to  174.624 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.07124   ( -0.949074   0.99643 )
beta        : -9.37167    ( 9.37167   19.3717 )
Epeak [keV] : 24.3630      ( -4.87997 7.66066 )
Norm@50keV   : 6.04120E-02    ( -0.0604362   0.650797 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.25 using 59 PHA bins.
# Reduced chi-squared =          1.041 for     55 degrees of freedom 
# Null hypothesis probability =   3.917814e-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]    : 7.89295  (-0.80374  0.875092)
R^2/D10^2   : 1.83108  (-0.641727   1.01225)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.32 using 59 PHA bins.
# Reduced chi-squared =          1.146 for     57 degrees of freedom 
# Null hypothesis probability =   2.101121e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.042e-08   3.240e-09
25- 50  3.491e-08   4.865e-09
50-150  8.766e-09   3.023e-09
15-150  6.409e-08   8.800e-09
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 34.0271       (-7.24071      9.94343)
Norm        : 11.4566       (-2.18493     2.81038)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.45 using 59 PHA bins.
# Reduced chi-squared =          1.008 for     57 degrees of freedom 
# Null hypothesis probability =   4.585394e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.473e-08   3.215e-09
25- 50  3.019e-08   3.955e-09
50-150  1.938e-08   6.790e-09
15-150  7.431e-08   1.123e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 2.41327        (-1.18054      1.93409)
R1^2/D10^2  : 220.517        (-212.326      68470.6)
kT2 [keV]   : 9.19347        (-1.26866      2.11519)
R2^2/D10^2  : 0.872934    (-0.562738   0.827017)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.02 using 59 PHA bins.
# Reduced chi-squared =          1.000 for     55 degrees of freedom 
# Null hypothesis probability =   4.740286e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.384e-08   9.843e-09
25- 50  3.248e-08   1.152e-08
50-150  1.298e-08   5.586e-09
15-150  6.930e-08   2.276e-08
Plot creation:
Tue Oct 17 07:18:47 EDT 2017