batgrbproduct analysis for trigger=1183217

batgrbproduct Analysis for Trigger=1183217

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Mon Aug  7 12:08:47 EDT 2023
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1183217/GCN5_download_cron
======================================================================

  Trigger: 01183217      Segment: 000

  BAT Trigger Time: 712927462.848   [s; MET]
      Trigger Stop: 712927471.04   [s; MET]
               UTC: 2023-08-05T11:23:51.076980    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 207.746617283295   Dec: 31.1848044696489  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.49
     Image Trigger?:     NO
     Rate S/N Ratio:     10.6301458127346  [ if not an image trigger ]
     Image S/N Ratio:    8.49

  Flight Position:   [ source = BAT ]
    RA: 207.746617283295   Dec: 31.1848044696489  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 207.738340186432   Dec: 31.1897089229703  [deg; J2000]  
        { 13h 50m 57.2s , +31d 11' 23.0" }
         +/- 2.14721748363936 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.00033564586289 [arcmin] (formal 1-sigma fit error)
    SNR: 10.2096242529042
 
  Angular difference between Flight and Ground position is 0.516811 arcmin
 
  Partial Coding Fraction: 0.4179688    [ including projection effects ]

  Duration
     T90: 93.7679998874664 +/- 18.8252266075519
        Measured from: -17.4079998731613
                   to: 76.3600000143051     [s; relative to TRIGTIME]
     T50: 45.8119999170303 +/- 14.6373180495996
        Measured from: 8.44000005722046
                   to: 54.2519999742508     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -17.6560000181198     
                   to: -16.6560000181198     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -21.6040000915527     
                   to: 103.271999955177     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.612643   1.047902   0.815492   0.297949
           0.103902   0.109697   0.098083   0.085260 [error]
 Peak      0.007297   0.043250   0.077150   0.020904
           0.010339   0.011176   0.010974   0.008789 [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 2.14e-07 4.29e-07 6.71e-07 2.31e-06 1.87e-06 3.63e-06   erg/cm2
              Error 4.66e-08 5.68e-08 9.21e-08 7.01e-07 2.31e-07 7.57e-07   erg/cm2
Peak flux Power-law 1.97e-01 3.20e-01 3.92e-01 9.49e-01 1.18e+00 1.86e+00   ph/cm2/s
              Error 9.69e-02 1.01e-01 7.96e-02 3.77e-01 2.68e-01 4.06e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.11e-07 4.34e-07 6.77e-07 1.99e-06 1.86e-06 3.31e-06   erg/cm2
              Error 5.30e-08 6.41e-08 1.01e-07 1.34e-06 2.43e-07 1.16e-06   erg/cm2
Peak flux Cutoff-PL 9.23e-02 3.08e-01 4.97e-01 3.20e-01 1.11e+00 1.22e+00   ph/cm2/s
              Error 1.09e-01 1.28e-01 1.20e-01 3.28e-01 2.66e-01 4.17e-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    1.356    0.199    -      -           1.56e-03 1.80e-04   62.480 57
CPL   1.259    0.587     395.0    0.0      1.74e-03 1.39e-03   62.420 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.704    0.348    -      -           1.02e-02 2.46e-03   62.960 57
CPL  -1.357    2.452     107.4  124.0      6.03e-02 3.02e-01   58.800 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: 56.960000 sec.
T50 in the 50-300 keV band: 19.328000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  124.876  -21.604  103.272
T90    93.768  -17.408   76.360
T50    45.812    8.440   54.252
Peak    1.000  -17.656  -16.656

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  207.7383 +31.1897 0.0188   43.6    1.0       2.7999    10.2  TRIG_01183217       
------------------------------------------
 
Foreground time interval of the image:
-21.604 -11.378 (delta_t =  10.226 [sec])
-10.848  26.032 (delta_t =  36.880 [sec])
 27.152  73.353 (delta_t =  46.201 [sec])
Background time interval of the image:
-60.848 -44.738 (delta_t =  16.110 [sec])
-43.848 -21.604 (delta_t =  22.244 [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
-21.604000 -11.378000
-10.848000 26.032000
27.152000 103.272000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.35649     ( -0.201444   0.197498 )
Norm@50keV  : 1.55658E-03    ( -0.000180121   0.000180121 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.48 using 59 PHA bins.
# Reduced chi-squared =          1.096 for     57 degrees of freedom 
# Null hypothesis probability =   2.879269e-01
 
Photon flux (15-150 keV)    in 123.2 sec: 0.187775 ( -0.0230213  0.0231106 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.87027e-06 ( -2.30858e-07  2.31986e-07 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-21.604000 -11.378000
-10.848000 26.032000
27.152000 103.272000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.25858     ( -0.792166   0.381227 )
Epeak [keV] : 395.021      ( -395.071 -395.071 )
Norm@50keV  : 1.74048E-03    ( -0.000346388   0.00243506 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.42 using 59 PHA bins.
# Reduced chi-squared =          1.115 for     56 degrees of freedom 
# Null hypothesis probability =   2.586447e-01
 
Photon flux (15-150 keV)    in 123.2 sec: 0.187132 ( -0.023399  0.023438 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.86037e-06 ( -2.47213e-07  2.3939e-07 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
-21.604000 -11.378000
-10.848000 26.032000
27.152000 103.272000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -4.73553   -5 )
beta        : -1.54576    ( -0.264028   0.246455 )
Epeak [keV] : 29.2218      ( -7.08986 5.18625 )
Norm@50keV   : 59.7282    ( -6.81813   260.533 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.09 using 59 PHA bins.
# Reduced chi-squared =          1.038 for     55 degrees of freedom 
# Null hypothesis probability =   3.975002e-01
 
Photon flux (15-150 keV)    in 123.2 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]    : 16.6494  (-2.57171  3.20887)
R^2/D10^2   : 1.51493E-02  (-0.00690187   0.0120969)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          83.07 using 59 PHA bins.
# Reduced chi-squared =          1.457 for     57 degrees of freedom 
# Null hypothesis probability =   1.370343e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.060e-07   2.627e-08
25- 50  4.610e-07   7.823e-08
50-150  9.061e-07   2.012e-07
15-150  1.473e-06   2.412e-07
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-46.4607      -200)
Norm        : 0.787997       (-0.0918468     0.0918468)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.418e-07   8.883e-08
25- 50  4.651e-07   2.555e-07
50-150  1.020e-06   5.543e-07
15-150  1.727e-06   9.474e-07
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.61452        (-2.16957      2.8293)
R1^2/D10^2  : 0.108729        (-0.0634417      0.169316)
kT2 [keV]   : 43.0086        (-17.2791      -44.1146)
R2^2/D10^2  : 5.26572E-04    (-0.000422043   0.00188076)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.036e-07   1.010e-07
25- 50  4.766e-07   2.226e-07
50-150  1.190e-06   6.373e-07
15-150  1.870e-06   8.760e-07

Peak spectrum fit

Power-law model
Time interval is from  -17.656 sec. to  -16.656 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.704297     ( -0.36922   0.327592 )
Norm@50keV  : 1.02015E-02    ( -0.00249948   0.00242032 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.96 using 59 PHA bins.
# Reduced chi-squared =          1.105 for     57 degrees of freedom 
# Null hypothesis probability =   2.736436e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.17879 ( -0.264857  0.270404 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.24283e-07 ( -2.53579e-08  2.53847e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -17.656 sec. to  -16.656 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.35668     ( -3.12719   1.77655 )
Epeak [keV] : 107.413      ( -27.8 220.246 )
Norm@50keV  : 6.02571E-02    ( -0.0602451   0.543809 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.80 using 59 PHA bins.
# Reduced chi-squared =          1.050 for     56 degrees of freedom 
# Null hypothesis probability =   3.732036e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.11419 ( -0.260958  0.2716 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.21391e-07 ( -2.70427e-08  2.6518e-08 ) ergs/cm2
 
Band function
Time interval is from  -17.656 sec. to  -16.656 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 1.35637   ( -0.766645   2.25584 )
beta        : -10.00000    ( 10   20 )
Epeak [keV] : 107.400      ( -22.332 219.764 )
Norm@50keV   : 6.02699E-02    ( -0.0118506   0.543604 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.80 using 59 PHA bins.
# Reduced chi-squared =          1.069 for     55 degrees of freedom 
# Null hypothesis probability =   3.380293e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 XSPEC: quit
 
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 27.1408  (-5.54684  8.58881)
R^2/D10^2   : 2.56890E-02  (-0.0145381   0.0270277)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.142e-09   1.554e-09
25- 50  1.855e-08   8.181e-09
50-150  9.969e-08   3.986e-08
15-150  1.214e-07   4.366e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-42.7015      -200)
Norm        : 4.91581       (-1.16236     1.16236)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.224e-08   7.390e-09
25- 50  2.354e-08   1.384e-08
50-150  5.163e-08   2.997e-08
15-150  8.742e-08   5.200e-08
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 200.000        (-200      -200)
R1^2/D10^2  : 4.79384E-05        (-4.79365e-05      -4.79365e-05)
kT2 [keV]   : 25.0116        (-8.77482      10.5529)
R2^2/D10^2  : 3.01184E-02    (-0.0188061   0.0220782)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00
Plot creation:
Mon Aug  7 12:16:42 EDT 2023