batgrbproduct analysis for trigger=773893

batgrbproduct Analysis for Trigger=773893

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Sep 25 03:12:40 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger773893/GCN5_download_cron
======================================================================

  Trigger: 00773893      Segment: 000

  BAT Trigger Time: 527940616   [s; MET]
      Trigger Stop: 527940680   [s; MET]
               UTC: 2017-09-24T10:09:56.264440    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 233.506813503219   Dec: -57.3563961699199  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.85
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    10.85

  Flight Position:   [ source = BAT ]
    RA: 233.506813503219   Dec: -57.3563961699199  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 233.490602210264   Dec: -57.3465339787641  [deg; J2000]  
        { 15h 33m 57.7s , -57d 20' 47.5" }
         +/- 2.19880657349391 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.945389359761334 [arcmin] (formal 1-sigma fit error)
    SNR: 9.86915046979544
 
  Angular difference between Flight and Ground position is 0.790887 arcmin
 
  Partial Coding Fraction: 1    [ including projection effects ]

  Duration
     T90: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]
     T50: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 64 second)
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.621933   0.453140   0.062308   0.062866
           0.057559   0.057593   0.051830   0.054205 [error]
 Peak      0.621933   0.453140   0.062308   0.062866
           0.057559   0.057593   0.051830   0.054205 [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 1.89e-07 1.61e-07 9.41e-08 8.19e-08 4.80e-07 5.27e-07   erg/cm2
              Error 3.09e-08 3.06e-08 3.87e-08 6.29e-08 9.03e-08 1.25e-07   erg/cm2
Peak flux Power-law 9.91e-02 4.74e-02 1.38e-02 5.07e-03 1.63e-01 1.65e-01   ph/cm2/s
              Error 1.67e-02 8.52e-03 5.50e-03 3.65e-03 2.25e-02 2.30e-02   ph/cm2/s
 
Fluence   Cutoff-PL 1.89e-07 1.61e-07 9.32e-08 7.99e-08 4.79e-07 5.23e-07   erg/cm2
              Error 3.09e-08 3.42e-08 6.80e-08 8.01e-08 1.03e-07 1.48e-07   erg/cm2
Peak flux Cutoff-PL 9.92e-02 4.73e-02 1.37e-02 4.96e-03 1.63e-01 1.65e-01   ph/cm2/s
              Error -------- -------- -------- -------- -------- --------   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    2.779    0.381    -      -           6.94e-04 2.10e-04   51.940 57
CPL   1.972    0.897       1.1   10.8      2.43e-03 0.00e+00   52.510 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.779    0.381    -      -           6.94e-04 2.10e-04   51.940 57
CPL   1.972    0.897       1.1   10.8      2.43e-03 0.00e+00   52.510 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   64.000    0.000   64.000
T90    64.000    0.000   64.000
T50    64.000    0.000   64.000
Peak   64.000    0.000   64.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  233.4906 -57.3465 0.0194   16.5   15.2       1.1559     9.9  TRIG_00773893       
------------------------------------------
 
Foreground time interval of the image:
  0.000   4.230 (delta_t =   4.230 [sec])
  5.000  64.000 (delta_t =  59.000 [sec])
Background time interval of the image:

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
0.000000 4.230000
5.000000 64.000000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.77890     ( -0.353076   0.408891 )
Norm@50keV  : 6.93743E-04    ( -0.000206024   0.000213243 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.94 using 59 PHA bins.
# Reduced chi-squared =         0.9113 for     57 degrees of freedom 
# Null hypothesis probability =   6.647471e-01
 
Photon flux (15-150 keV)    in 63.23 sec: 0.163260 ( -0.0224459  0.0224708 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.80265e-07 ( -8.69811e-08  9.37126e-08 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
0.000000 4.230000
5.000000 64.000000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.97208     ( -1.74255   0.0522898 )
Epeak [keV] : 1.08811      ( -0.588483 21.0914 )
Norm@50keV  : 2.43279E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.51 using 59 PHA bins.
# Reduced chi-squared =         0.9377 for     56 degrees of freedom 
# Null hypothesis probability =   6.077095e-01
 
Photon flux (15-150 keV)    in 63.23 sec: 0.163222 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.79315e-07 ( -1.12221e-07  9.44536e-08 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
0.000000 4.230000
5.000000 64.000000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -7.27329   ( 7.27329   7.27329 )
beta        : -2.77890    ( -0.408839   0.352997 )
Epeak [keV] : 9.88749      ( -9.88749 -9.88749 )
Norm@50keV   : 9.42893E-02    ( -0.0280015   0.0289827 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.94 using 59 PHA bins.
# Reduced chi-squared =         0.9444 for     55 degrees of freedom 
# Null hypothesis probability =   5.921757e-01
 
Photon flux (15-150 keV)    in 63.23 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]    : 6.25374  (-0.990632  1.07586)
R^2/D10^2   : 0.482334  (-0.238388   0.545539)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.13 using 59 PHA bins.
# Reduced chi-squared =          1.055 for     57 degrees of freedom 
# Null hypothesis probability =   3.630573e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.678e-07   4.142e-08
25- 50  1.829e-07   5.106e-08
50-150  1.979e-08   1.129e-08
15-150  3.705e-07   7.686e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 22.2620       (-6.34506      9.81773)
Norm        : 1.72195       (-0.535439     0.87985)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.26 using 59 PHA bins.
# Reduced chi-squared =         0.9344 for     57 degrees of freedom 
# Null hypothesis probability =   6.161580e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.839e-07   3.443e-08
25- 50  1.743e-07   3.965e-08
50-150  6.215e-08   3.767e-08
15-150  4.204e-07   9.001e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 2.28517        (-1.0794      1.44286)
R1^2/D10^2  : 48.3708        (-52.1232      21042.6)
kT2 [keV]   : 8.13257        (-1.62191      2.80413)
R2^2/D10^2  : 0.127996    (-0.0961385   0.239668)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.59 using 59 PHA bins.
# Reduced chi-squared =         0.9198 for     55 degrees of freedom 
# Null hypothesis probability =   6.437558e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.831e-07   9.051e-08
25- 50  1.807e-07   1.019e-07
50-150  4.887e-08   3.218e-08
15-150  4.126e-07   2.101e-07

Peak spectrum fit

Power-law model
Time interval is from    5.000 sec. to   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.77890     ( -0.353076   0.408891 )
Norm@50keV  : 6.93743E-04    ( -0.000206024   0.000213243 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.94 using 59 PHA bins.
# Reduced chi-squared =         0.9113 for     57 degrees of freedom 
# Null hypothesis probability =   6.647471e-01
 
Photon flux (15-150 keV)    in 63.23 sec: 0.163260 ( -0.0224459  0.0224708 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.80265e-07 ( -8.69811e-08  9.37126e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    5.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.97208     ( -1.74255   0.0522898 )
Epeak [keV] : 1.08811      ( -0.588483 21.0914 )
Norm@50keV  : 2.43279E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.51 using 59 PHA bins.
# Reduced chi-squared =         0.9377 for     56 degrees of freedom 
# Null hypothesis probability =   6.077095e-01
 
Photon flux (15-150 keV)    in 63.23 sec: 0.163222 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.79315e-07 ( -1.12221e-07  9.44536e-08 ) ergs/cm2
 
Band function
Time interval is from    5.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -7.27329   ( 7.27329   7.27329 )
beta        : -2.77890    ( -0.408839   0.352997 )
Epeak [keV] : 9.88749      ( -9.88749 -9.88749 )
Norm@50keV   : 9.42893E-02    ( -0.0280015   0.0289827 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.94 using 59 PHA bins.
# Reduced chi-squared =         0.9444 for     55 degrees of freedom 
# Null hypothesis probability =   5.921757e-01
 
Photon flux (15-150 keV)    in 63.23 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]    : 6.25374  (-0.990632  1.07586)
R^2/D10^2   : 0.482334  (-0.238388   0.545539)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.13 using 59 PHA bins.
# Reduced chi-squared =          1.055 for     57 degrees of freedom 
# Null hypothesis probability =   3.630573e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.678e-07   3.740e-08
25- 50  1.829e-07   4.584e-08
50-150  1.979e-08   1.117e-08
15-150  3.705e-07   8.049e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 22.2620       (-6.34506      9.81773)
Norm        : 1.72195       (-0.535439     0.87985)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.26 using 59 PHA bins.
# Reduced chi-squared =         0.9344 for     57 degrees of freedom 
# Null hypothesis probability =   6.161580e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.839e-07   3.484e-08
25- 50  1.743e-07   4.546e-08
50-150  6.215e-08   3.602e-08
15-150  4.204e-07   8.814e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 2.28517        (-1.0794      1.44286)
R1^2/D10^2  : 48.3708        (-52.1232      21042.6)
kT2 [keV]   : 8.13257        (-1.62191      2.80413)
R2^2/D10^2  : 0.127996    (-0.0961385   0.239668)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.59 using 59 PHA bins.
# Reduced chi-squared =         0.9198 for     55 degrees of freedom 
# Null hypothesis probability =   6.437558e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.831e-07   9.443e-08
25- 50  1.807e-07   1.027e-07
50-150  4.887e-08   3.234e-08
15-150  4.126e-07   2.094e-07
Plot creation:
Mon Sep 25 03:36:07 EDT 2017