batgrbproduct analysis for trigger=1149293

batgrbproduct Analysis for Trigger=1149293

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Wed Jan 18 13:00:12 EST 2023
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1149293/batgroup_hand_proc
======================================================================

  Trigger: 01149293      Segment: 000

  BAT Trigger Time: 695595913.856   [s; MET]
      Trigger Stop: 695595926.016   [s; MET]
               UTC: 2023-01-16T21:04:43.267620    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 98.5941375765579   Dec: 49.840140677662  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.08
     Image Trigger?:     NO
     Rate S/N Ratio:     14.1067359796659  [ if not an image trigger ]
     Image S/N Ratio:    10.08

  Flight Position:   [ source = BAT ]
    RA: 98.5941375765579   Dec: 49.840140677662  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 98.5712442257505   Dec: 49.8440254116627  [deg; J2000]  
        { 06h 34m 17.1s , +49d 50' 38.5" }
         +/- 1.94162438879087 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.702706689944712 [arcmin] (formal 1-sigma fit error)
    SNR: 11.7883706388317
 
  Angular difference between Flight and Ground position is 0.915982 arcmin
 
  Partial Coding Fraction: 0.984375    [ including projection effects ]

  Duration
     T90: 41 +/- 11.1803398874989
        Measured from: 2.14400005340576
                   to: 43.1440000534058     [s; relative to TRIGTIME]
     T50: 16 +/- 8.24621125123532
        Measured from: 7.14400005340576
                   to: 23.1440000534058     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 12.1440000534058     
                   to: 13.1440000534058     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 1.14400005340576     
                   to: 53.1440000534058     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.286286   0.566947   0.370859   0.108004
           0.059872   0.061517   0.052637   0.043739 [error]
 Peak      0.011354   0.031786   0.021491   0.009722
           0.008472   0.008987   0.007402   0.006051 [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 9.61e-08 1.89e-07 2.90e-07 9.71e-07 8.12e-07 1.55e-06   erg/cm2
              Error 2.11e-08 2.62e-08 4.92e-08 3.50e-07 1.22e-07 3.89e-07   erg/cm2
Peak flux Power-law 1.67e-01 1.73e-01 1.27e-01 1.49e-01 5.25e-01 6.17e-01   ph/cm2/s
              Error 9.51e-02 6.52e-02 5.62e-02 1.32e-01 1.88e-01 2.25e-01   ph/cm2/s
 
Fluence   Cutoff-PL 8.67e-08 2.09e-07 2.97e-07 2.96e-07 7.51e-07 8.89e-07   erg/cm2
              Error 2.41e-08 3.61e-08 5.64e-08 6.88e-07 1.43e-07 6.60e-07   erg/cm2
Peak flux Cutoff-PL 8.76e-02 2.03e-01 1.57e-01 2.57e-02 4.70e-01 4.74e-01   ph/cm2/s
              Error 1.18e-01 9.13e-02 7.59e-02 -------- 2.17e-01 2.51e-01   ph/cm2/s
 
Fluence        Band 7.75e-08 2.27e-07 2.77e-07 6.41e-07 7.70e-07 1.23e-06   erg/cm2
              Error 2.61e-08 3.96e-08 -------- -------- -------- --------   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    1.385    0.220    -      -           1.61e-03 2.16e-04   53.890 57
CPL   0.577    1.076      82.7  -27.7      4.35e-03 1.02e-02   51.850 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.451    0.600    -      -           4.26e-03 1.56e-03   51.100 57
CPL  -1.103    0.925      63.4  -22.3      6.90e-02 1.16e+03   49.650 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: 9.408000 sec.
T50 in the 50-300 keV band: 6.272000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   52.000    1.144   53.144
T90    41.000    2.144   43.144
T50    16.000    7.144   23.144
Peak    1.000   12.144   13.144

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   98.5712 +49.8440 0.0163   10.6  132.4       1.4034    11.8  TRIG_01149293       
------------------------------------------
 
Foreground time interval of the image:
  1.144  53.144 (delta_t =  52.000 [sec])
Background time interval of the image:
-239.856   1.144 (delta_t = 241.000 [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
Time interval is from    1.144 sec. to   53.144 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.38497     ( -0.220555   0.219852 )
Norm@50keV  : 1.61197E-03    ( -0.000216061   0.000215091 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.89 using 59 PHA bins.
# Reduced chi-squared =         0.9455 for     57 degrees of freedom 
# Null hypothesis probability =   5.923329e-01
 
Photon flux (15-150 keV)    in 52 sec: 0.195648 ( -0.0259421  0.0259709 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.1249e-07 ( -1.20697e-07  1.22547e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.144 sec. to   53.144 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.576552     ( -1.25956   0.892908 )
Epeak [keV] : 82.7162      ( -27.2611 -82.7309 )
Norm@50keV  : 4.34543E-03    ( -0.00434385   0.0160922 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.85 using 59 PHA bins.
# Reduced chi-squared =         0.9259 for     56 degrees of freedom 
# Null hypothesis probability =   6.326954e-01
 
Photon flux (15-150 keV)    in 52 sec: 0.189762 ( -0.027101  0.02697 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.50604e-07 ( -1.42334e-07  1.43863e-07 ) ergs/cm2
 
Band function
Time interval is from    1.144 sec. to   53.144 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.85494   ( -12.8076   -4.85494 )
beta        : -1.74727    ( -0.475929   0.324142 )
Epeak [keV] : 32.9495      ( -5.57533 6.00427 )
Norm@50keV   : 26.0511    ( -3.3554   122.484 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.57 using 59 PHA bins.
# Reduced chi-squared =         0.8831 for     55 degrees of freedom 
# Null hypothesis probability =   7.171117e-01
 
Photon flux (15-150 keV)    in 52 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.69564e-07 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 14.1458  (-2.0864  2.60486)
R^2/D10^2   : 2.83254E-02  (-0.0126978   0.0214309)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.22 using 59 PHA bins.
# Reduced chi-squared =          1.021 for     57 degrees of freedom 
# Null hypothesis probability =   4.302626e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.220e-08   1.656e-08
25- 50  2.337e-07   4.498e-08
50-150  3.096e-07   8.042e-08
15-150  6.054e-07   1.069e-07
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-67.9942      -200)
Norm        : 0.807429       (-0.105759     0.105759)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.046e-07   5.915e-08
25- 50  2.011e-07   1.114e-07
50-150  4.411e-07   2.446e-07
15-150  7.468e-07   4.157e-07
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.81685        (-3.34718      3.07792)
R1^2/D10^2  : 7.59338E-02        (-0.0363675      0.107743)
kT2 [keV]   : 39.9075        (-36.2833      -57.5723)
R2^2/D10^2  : 5.18935E-04    (-0.000155946   0.00474787)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.254e-08   4.390e-08
25- 50  2.243e-07   1.233e-07
50-150  4.531e-07   2.557e-07
15-150  7.599e-07   3.960e-07

Peak spectrum fit

Power-law model
Time interval is from   12.144 sec. to   13.144 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.45137     ( -0.578574   0.620522 )
Norm@50keV  : 4.26174E-03    ( -0.00157623   0.00154214 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.10 using 59 PHA bins.
# Reduced chi-squared =         0.8965 for     57 degrees of freedom 
# Null hypothesis probability =   6.948717e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.525369 ( -0.188109  0.188625 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.0772e-08 ( -1.6014e-08  1.64452e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   12.144 sec. to   13.144 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.10257     ( 1.2138   3.06399 )
Epeak [keV] : 63.4194      ( -18.2638 -62.9225 )
Norm@50keV  : 6.89582E-02    ( -0.0884467   2329.29 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.65 using 59 PHA bins.
# Reduced chi-squared =         0.8867 for     56 degrees of freedom 
# Null hypothesis probability =   7.124034e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.469942 ( -0.222635  0.211554 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.61555e-08 ( -1.72294e-08  1.79269e-08 ) ergs/cm2
 
Band function
Time interval is from   12.144 sec. to   13.144 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.933015   ( 0.49057   4.16479 )
beta        : -10.00000    ( 10   2.46654e-07 )
Epeak [keV] : 64.5072      ( -19.9325 32.8428 )
Norm@50keV   : 5.85339E-02    ( -0.0200655   4.10041 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.65 using 59 PHA bins.
# Reduced chi-squared =         0.9028 for     55 degrees of freedom 
# Null hypothesis probability =   6.784455e-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]    : 15.9400  (-4.45667  6.94919)
R^2/D10^2   : 5.39348E-02  (-0.0539348   0.113308)
(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  2.836e-09   1.819e-09
25- 50  1.189e-08   7.375e-09
50-150  2.109e-08   1.476e-08
15-150  3.582e-08   2.240e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.362       (-199.363      -199.363)
Norm        : 2.18112       (-0.767951     0.768427)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.431e-09   3.502e-09
25- 50  1.045e-08   6.730e-09
50-150  2.291e-08   1.404e-08
15-150  3.879e-08   2.440e-08
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 1.36718        (-1.75736      16.3935)
R1^2/D10^2  : 8504.58        (-7750.74      -7750.74)
kT2 [keV]   : 17.0077        (-4.86055      8.18201)
R2^2/D10^2  : 4.12378E-02    (-0.0307731   0.0508428)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.474e-09   2.025e-09
25- 50  1.053e-08   6.590e-09
50-150  2.247e-08   1.530e-08
15-150  3.748e-08   2.300e-08
Plot creation:
Wed Jan 18 13:18:37 EST 2023