batgrbproduct analysis for trigger=1093742

batgrbproduct Analysis for Trigger=1093742

Analysis Summary

Notes:

1) No attempt has been made to eliminate the non-significant decimal places.
2) This batgrbproduct analysis is done using the HEASARC data.
3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Sun Oct 23 23:44:13 EDT 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1093742
======================================================================

  Trigger: 01093742      Segment: 000

  BAT Trigger Time: 664222866.56   [s; MET]
      Trigger Stop: 664222867.584   [s; MET]
               UTC: 2022-01-18T18:20:38.099740    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 192.274400418694   Dec: 22.9093590537508  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.36
     Image Trigger?:     NO
     Rate S/N Ratio:     16.4012194668567  [ if not an image trigger ]
     Image S/N Ratio:    7.36

  Flight Position:   [ source = BAT ]
    RA: 192.274400418694   Dec: 22.9093590537508  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 192.276912171737   Dec: 22.9104792326595  [deg; J2000]  
        { 12h 49m 06.5s , +22d 54' 37.7" }
         +/- 1.3564416411626 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.666901727869427 [arcmin] (formal 1-sigma fit error)
    SNR: 19.6776817294017
 
  Angular difference between Flight and Ground position is 0.154232 arcmin
 
  Partial Coding Fraction: 0.2265625    [ including projection effects ]

  Duration
     T90: 10.6080000400543 +/- 1.77952803014474
        Measured from: -2.31199991703033
                   to: 8.29600012302399     [s; relative to TRIGTIME]
     T50: 4.8639999628067 +/- 0.823222883716814
        Measured from: -0.119999885559082
                   to: 4.74400007724762     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.684000015258789     
                   to: 1.68400001525879     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -3.89599990844727     
                   to: 9.5440000295639     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.712149   1.100912   0.783525   0.183637
           0.061468   0.065637   0.060273   0.047571 [error]
 Peak      0.093993   0.126883   0.135520   0.025227
           0.017892   0.019042   0.018840   0.013314 [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 2.88e-07 4.77e-07 6.02e-07 1.51e-06 1.79e-06 2.88e-06   erg/cm2
              Error 3.28e-08 3.45e-08 5.85e-08 3.04e-07 1.40e-07 3.55e-07   erg/cm2
Peak flux Power-law 1.12e+00 1.09e+00 7.49e-01 8.06e-01 3.28e+00 3.77e+00   ph/cm2/s
              Error 2.79e-01 1.75e-01 1.41e-01 3.01e-01 5.06e-01 5.69e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.65e-07 5.08e-07 6.20e-07 6.89e-07 1.72e-06 2.08e-06   erg/cm2
              Error 3.85e-08 4.38e-08 6.46e-08 4.85e-07 1.52e-07 5.01e-07   erg/cm2
Peak flux Cutoff-PL 1.06e+00 1.12e+00 7.76e-01 6.36e-01 3.26e+00 3.59e+00   ph/cm2/s
              Error 3.31e-01 1.99e-01 1.70e-01 3.17e-01 5.11e-01 6.87e-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    1.667    0.121    -      -           1.43e-02 1.06e-03   43.980 57
CPL   1.107    0.514      77.6   85.6      2.80e-02 1.84e-02   40.010 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.547    0.249    -      -           2.60e-02 3.99e-03   46.140 57
CPL   1.299    0.766     154.4    0.0      3.42e-02 4.77e-02   45.910 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: 8.640000 sec.
T50 in the 50-300 keV band: 3.712000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   13.440   -3.896    9.544
T90    10.608   -2.312    8.296
T50     4.864   -0.120    4.744
Peak    1.000    0.684    1.684

Click here for the BAT GCN circular template

Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minute to calcaulte

Image

Pre-slew 15.0-350.0 keV image (Event data)

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  192.2769    22.9105   0.0097    42.8204    37.1462         2.8220343     19.678 TRIG_01093742                 
 
Foreground time interval of the image:
 -3.896   9.544 (delta_t =  13.440 [sec])
Background time interval of the image:
-114.859  -3.896 (delta_t = 110.963 [sec])

Lightcurves

Notes:

1) The mask-weighted light curves are using the flight position.
2) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
3) For all the mask-weighted lightcurves, the y-axis units are counts/sec/det where a det is 0.4 x 0.4 = 0.16 sq cm.
4) The verticle lines correspond to following: green dotted lines are T50 interval, black dotted lines are T90 interval, blue solid line(s) is a spacecraft slew start time, and orange solid line(s) is a spacecraft slew end time.
5) Time of each bin is in the middle of the bin.

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)

Quad-rate summed light curves (from T0-300s to T0+1000s)

Spectral Evolution

Spectra

Notes:

1) The fitting includes the systematic errors.
2) When the burst includes telescope slew time periods, the fitting uses an average response file made from multiple 5-s response files through out the slew time plus single time preiod for the non-slew times, and weighted by the total counts in the corresponding time period using addrmf. An average response file is needed becuase a spectral fit using the pre-slew DRM will introduce some errors in both a spectral shape and a normalization if the PHA file contains a lot of the slew/post-slew time interval.
3) For fits to more complicated models (e.g. a power-law over a cutoff power-law), the BAT team has decided to require a chi-square improvement of more than 6 for each extra dof.

Time averaged spectrum fit using the average DRM

Power-law model

Time interval is from   -3.896 sec. to    9.544 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.66734     ( -0.120095   0.122046 )
Norm@50keV  : 1.43326E-02    ( -0.00106796   0.00106136 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   43.98     using 59 bins.
 Reduced chi-squared = 0.771579
# Null hypothesis probability of 8.97e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 13.44 sec: 1.88240 ( -0.13619  0.13636 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.78878e-06 ( -1.39902e-07  1.4087e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from   -3.896 sec. to    9.544 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.10710     ( -0.543304   0.484191 )
Epeak [keV] : 77.6276      ( -18.2321 152.887 )
Norm@50keV  : 2.79617E-02    ( -0.012035   0.0247284 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   40.01     using 59 bins.
 Reduced chi-squared = 0.714464
# Null hypothesis probability of 9.47e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 13.44 sec: 1.84061 ( -0.14103  0.14102 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.72211e-06 ( -1.52145e-07  1.52625e-07 ) ergs/cm2

Band function

Time interval is from   -3.896 sec. to    9.544 sec.
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       :    (     )
beta        :     (     )
Epeak [keV] :       (   )
Norm@50keV   :     (     )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in  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]    : 13.6340  (-1.16532  1.27211)
R^2/D10^2   : 0.292513  (-0.0809424   0.111845)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   80.22     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 2.30e-02 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.547e-07   1.938e-08
25- 50  5.602e-07   5.174e-08
50-150  6.762e-07   1.078e-07
15-150  1.391e-06   1.217e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 148.086       (-41.3065      -145.452)
Norm        : 7.75315       (-0.625555     0.782343)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   40.36     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.53e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.679e-07   3.004e-08
25- 50  4.957e-07   6.707e-08
50-150  9.732e-07   3.820e-07
15-150  1.737e-06   4.570e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.50541        (-1.41224      1.69432)
R1^2/D10^2  : 2.57796        (-1.3661      3.60928)
kT2 [keV]   : 22.1026        (-3.85634      6.85324)
R2^2/D10^2  : 3.87046E-02    (-0.0251972   0.0450055)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   39.04     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.49e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.638e-07   7.814e-08
25- 50  5.055e-07   1.425e-07
50-150  9.407e-07   3.942e-07
15-150  1.710e-06   4.859e-07

Peak spectrum fit

Power-law model

Time interval is from    0.684 sec. to    1.684 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.54691     ( -0.24328   0.254002 )
Norm@50keV  : 2.59553E-02    ( -0.0040113   0.00397818 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   46.14     using 59 bins.
 Reduced chi-squared = 0.809474
# Null hypothesis probability of 8.48e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 3.28295 ( -0.50522  0.50601 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.44489e-07 ( -4.03199e-08  4.0475e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    0.684 sec. to    1.684 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.29927     ( -1.04244   0.488773 )
Epeak [keV] : 154.407      ( -154.406 -154.406 )
Norm@50keV  : 3.41761E-02    ( -0.025347   0.0701244 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   45.91     using 59 bins.
 Reduced chi-squared = 0.819821
# Null hypothesis probability of 8.30e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 3.26276 ( -0.51075  0.51114 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.43461e-07 ( -4.11218e-08  4.09e-08 ) ergs/cm2

Band function

Time interval is from    0.684 sec. to    1.684 sec.
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       :    (     )
beta        :     (     )
Epeak [keV] :       (   )
Norm@50keV   :     (     )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in  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]    : 16.3506  (-2.97722  3.53848)
R^2/D10^2   : 0.281762  (-0.138941   0.279577)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   58.42     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 4.23e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.550e-08   4.651e-09
25- 50  6.642e-08   1.517e-08
50-150  1.251e-07   3.532e-08
15-150  2.070e-07   4.920e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-88.2628      -199.363)
Norm        : 13.4836       (-2.0184     2.01944)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   46.02     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.51e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.358e-08   1.912e-08
25- 50  6.459e-08   3.599e-08
50-150  1.417e-07   7.880e-08
15-150  2.398e-07   1.337e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.32101        (-2.13241      3.53094)
R1^2/D10^2  : 9.14753        (-7.68262      81.516)
kT2 [keV]   : 23.3022        (-5.6683      12.1651)
R2^2/D10^2  : 6.91911E-02    (-0.0546679   0.12516)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   45.63     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.12e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.512e-08   1.929e-08
25- 50  5.850e-08   3.018e-08
50-150  1.511e-07   8.646e-08
15-150  2.447e-07   1.185e-07

Pre-slew spectrum (Pre-slew PHA with pre-slew DRM)

Power-law model

 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.66734     ( -0.120095   0.122046 )
Norm@50keV  : 1.43326E-02    ( -0.00106796   0.00106136 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   43.98     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.97e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 13.44 sec: 1.88232 ( -0.136176  0.136358 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.78853e-06 ( -1.40066e-07  1.40887e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.10710     ( -0.543302   0.484192 )
Epeak [keV] : 77.6275      ( -18.232 152.887 )
Norm@50keV  : 2.79617E-02    ( -0.012035   0.0247283 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   40.01     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.47e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 13.44 sec: 1.84036 ( -0.14098  0.14097 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.7227e-06 ( -1.52436e-07  1.52732e-07 ) ergs/cm2

Band function

 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       :    (     )
beta        :     (     )
Epeak [keV] :       (   )
Norm@50keV   :     (     )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in  sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2

S(25-50 keV) vs. S(50-100 keV) plot

S(25-50 keV)  = 4.77e-07
S(50-100 keV) = 6.02e-07

T90 vs. Hardness ratio plot

T90                                   = 10.6080000400543 sec.
Hardness ratio (energy fluence ratio) = 1.26205

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.5459
Count Ratio (50-100 keV) / (15-25 keV) = 1.10023

Mask shadow pattern

IMX = 7.386484562865351E-01, IMY = -5.595721947618852E-01

TIME vs. PHA plot around the trigger time

TIME vs. DetID plot around the trigger time

100 us light curve (15-350 keV)

Spacecraft aspect plot

Bright source in the pre-burst/pre-slew/post-slew images

Pre-burst image of 15-350 keV band

Time interval of the image:
-114.859400 -3.896000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.4323  35.3556    1.7  27.1  -67.2   1.4848   7.0    1.5	Her X-1                       
184.2484  27.7601    2.7  42.6   50.0   1.8258   4.3 ------	UNKNOWN                       
201.2413  26.1630    2.6  36.1   28.2   1.0829   4.5 ------	UNKNOWN                       
220.9009  12.3564    3.0  44.4   -5.6   1.0329   3.9 ------	UNKNOWN                       
259.7799  39.3587    2.7  26.3  -80.1   0.8815   4.2 ------	UNKNOWN                       
298.8954  51.2945    2.5  39.8 -130.4   1.3655   4.6 ------	UNKNOWN

Pre-slew background subtracted image of 15-350 keV band

Time interval of the image:
-3.896000 9.544000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.4107  35.3709    3.4  27.1  -67.2  -0.2199  -3.4    2.9	Her X-1                       
192.2769  22.9105    0.6  42.8   37.1   2.8223  19.7 ------	UNKNOWN                       
252.8949  11.5701    2.1  48.4  -49.0   1.2005   5.4 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
79.140600 435.540600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
182.9225 -34.5513    3.2  58.1   -3.8   7.6281   3.6 ------	UNKNOWN                       
186.1193 -33.5740    3.1  56.8   -6.8   5.7703   3.8 ------	UNKNOWN                       
255.6687  67.9346    2.3  59.0 -169.8  12.7674   5.1 ------	UNKNOWN                       
255.2395  47.0453    2.1  55.2 -145.2  11.6758   5.4 ------	UNKNOWN                       
248.1772  37.1645    2.3  49.7 -133.0   8.2131   5.0 ------	UNKNOWN

Plot creation:
Mon Oct 24 05:08:30 EDT 2022