batgrbproduct analysis for trigger=1104692

batgrbproduct Analysis for Trigger=1104692

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 23:20:31 EDT 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1104692
======================================================================

  Trigger: 01104692      Segment: 000

  BAT Trigger Time: 673019625.024   [s; MET]
      Trigger Stop: 673019626.048   [s; MET]
               UTC: 2022-04-30T13:53:15.969080    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 97.6105079123594   Dec: 9.51011902952678  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.24
     Image Trigger?:     NO
     Rate S/N Ratio:     22.7596133534821  [ if not an image trigger ]
     Image S/N Ratio:    7.24

  Flight Position:   [ source = BAT ]
    RA: 97.6105079123594   Dec: 9.51011902952678  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 97.6173219645669   Dec: 9.54730058127784  [deg; J2000]  
        { 06h 30m 28.2s , +09d 32' 50.3" }
         +/- 0.703757752563403 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.218972685845123 [arcmin] (formal 1-sigma fit error)
    SNR: 50.2441204972759
 
  Angular difference between Flight and Ground position is 2.267037 arcmin
 
  Partial Coding Fraction: 1    [ including projection effects ]

  Duration
     T90: 43.1439999341965 +/- 0.564127746156104
        Measured from: 12.107999920845
                   to: 55.2519998550415     [s; relative to TRIGTIME]
     T50: 10.7119998931885 +/- 0.0848529014078306
        Measured from: 34.8240000009537
                   to: 45.5359998941422     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 42.0039999485016     
                   to: 43.0039999485016     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -6.53200006484985     
                   to: 94.6039999723434     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total    14.972935  23.459056  21.565292   6.275467
           0.089702   0.103359   0.098922   0.070555 [error]
 Peak      0.752773   1.344086   1.331034   0.411576
           0.016035   0.020575   0.021336   0.014587 [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 4.41e-06 9.43e-06 1.59e-05 6.11e-05 4.36e-05 9.07e-05   erg/cm2
              Error 1.23e-07 1.60e-07 1.76e-07 1.56e-06 4.81e-07 1.56e-06   erg/cm2
Peak flux Power-law 2.82e-03 3.48e-02 3.92e-01 3.35e+01 1.18e+00 2.06e+01   ph/cm2/s
              Error -------- -------- -------- -------- -------- --------   ph/cm2/s
 
Fluence   Cutoff-PL 4.26e-06 9.42e-06 1.61e-05 5.61e-05 4.36e-05 8.58e-05   erg/cm2
              Error 1.79e-07 1.61e-07 2.28e-07 4.55e-06 4.86e-07 4.48e-06   erg/cm2
Peak flux Cutoff-PL 6.91e+00 9.27e+00 8.63e+00 1.11e+01 2.92e+01 3.60e+01   ph/cm2/s
              Error 4.24e-01 2.44e-01 2.33e-01 1.53e+00 6.65e-01 1.71e+00   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    1.250    0.021    -      -           4.31e-02 5.45e-04   22.580 57
CPL   1.161    0.065     635.2 3679.9      4.65e-02 3.26e-03   19.410 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.128    0.036    -      -           2.54e-01 5.11e-03   53.390 57
CPL   0.928    0.147     319.4  360.4      3.09e-01 4.39e-02   47.800 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: 41.216000 sec.
T50 in the 50-300 keV band: 10.176000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  101.136   -6.532   94.604
T90    43.144   12.108   55.252
T50    10.712   34.824   45.536
Peak    1.000   42.004   43.004

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
   97.6173     9.5473   0.0038     1.4259   -54.0754         3.3173963     50.244 TRIG_01104692                 
 
Foreground time interval of the image:
 -6.532  11.877 (delta_t =  18.409 [sec])
Background time interval of the image:
-239.024  -6.532 (delta_t = 232.492 [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

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000

8 ms binning

From T100_start-3 s to T100_start+3 s

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000

2 ms binning

From T100_start-1 s to T100_start+1 s

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000

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   -6.532 sec. to   94.604 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.25005     ( -0.0207862   0.0206947 )
Norm@50keV  : 4.31055E-02    ( -0.00054605   0.000544778 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   22.58     using 59 bins.
 Reduced chi-squared = 0.39614
# Null hypothesis probability of 1.00e+00 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 101.1 sec: 5.09829 ( -0.07444  0.07468 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.36186e-05 ( -4.8047e-07  4.80661e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from   -6.532 sec. to   94.604 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.16069     ( -0.0867215   0.0432498 )
Epeak [keV] : 635.164      ( -275.558 7084.34 )
Norm@50keV  : 4.65144E-02    ( -0.00302791   0.00349053 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   19.41     using 59 bins.
 Reduced chi-squared = 0.346607
# Null hypothesis probability of 1.00e+00 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 101.1 sec: 2.89154 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.35412e-05 ( -4.85492e-07  4.85966e-07 ) ergs/cm2

Band function

Time interval is from   -6.532 sec. to   94.604 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]    : 24.1766  (  )
R^2/D10^2   : 0.121331  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                 1493.52     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.03e-275 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.267e-06   3.084e-08
25- 50  7.067e-06   1.426e-07
50-150  3.075e-05   3.892e-07
15-150  3.909e-05   4.145e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 23.3728       (     )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                 1011.06     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.17e-174 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.884e-06   7.633e-08
25- 50  1.132e-05   1.618e-07
50-150  2.482e-05   3.538e-07
15-150  4.203e-05   5.561e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.08913        (-0.448744      0.469033)
R1^2/D10^2  : 1.83594        (-0.279959      0.341699)
kT2 [keV]   : 36.4050        (-1.48374      1.7085)
R2^2/D10^2  : 2.66063E-02    (-0.00380842   0.00407539)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   40.19     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.33e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.492e-06   1.628e-07
25- 50  9.732e-06   2.128e-07
50-150  3.010e-05   4.499e-07
15-150  4.333e-05   7.128e-07

Peak spectrum fit

Power-law model

Time interval is from   42.004 sec. to   43.004 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.12826     ( -0.0362801   0.0361994 )
Norm@50keV  : 0.254136    ( -0.00511212   0.00510877 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   53.39     using 59 bins.
 Reduced chi-squared = 0.936667
# Null hypothesis probability of 6.11e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 1.18494 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.63384e-06 ( -5.56792e-08  5.57743e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   42.004 sec. to   43.004 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.928372     ( -0.149351   0.14476 )
Epeak [keV] : 319.371      ( -110.05 610.777 )
Norm@50keV  : 0.309343    ( -0.0401516   0.0475518 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   47.80     using 59 bins.
 Reduced chi-squared = 0.853571
# Null hypothesis probability of 7.74e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 29.2354 ( -0.6645  0.6661 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.61228e-06 ( -5.82853e-08  5.80811e-08 ) ergs/cm2

Band function

Time interval is from   42.004 sec. to   43.004 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]    : 21.3608  (  )
R^2/D10^2   : 1.11713  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  468.55     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 5.22e-66 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.559e-08   3.890e-09
25- 50  4.966e-07   1.545e-08
50-150  1.691e-06   5.650e-08
15-150  2.283e-06   5.600e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 125.070       (     )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  458.00     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 5.48e-64 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.114e-07   6.550e-09
25- 50  5.991e-07   1.385e-08
50-150  1.314e-06   2.750e-08
15-150  2.224e-06   4.800e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.09553        (-0.834373      0.902676)
R1^2/D10^2  : 9.82391        (-2.33535      3.31234)
kT2 [keV]   : 35.9241        (-3.11996      4.22317)
R2^2/D10^2  : 0.176552    (-0.0528582   0.061991)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   53.07     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 5.49e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.908e-07   1.400e-08
25- 50  5.528e-07   2.405e-08
50-150  1.873e-06   9.400e-08
15-150  2.617e-06   1.205e-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: 0.492885     ( -0.0611073   0.0598754 )
Norm@50keV  : 1.03890E-02    ( -0.000388709   0.000385277 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   49.48     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 7.50e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 18.41 sec: 1.23185 ( -0.0400652  0.0401201 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.57891e-06 ( -8.24254e-08  8.24737e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.224053     ( -0.258549   0.199355 )
Epeak [keV] : 445.991      ( -182.425 2524.57 )
Norm@50keV  : 1.30445E-02    ( -0.00236372   0.00305753 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   45.86     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.31e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 18.41 sec: 1.22059 ( -0.04119  0.04129 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.56956e-06 ( -8.40601e-08  8.37839e-08 ) 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)  = 9.43e-06
S(50-100 keV) = 1.59e-05

T90 vs. Hardness ratio plot

T90                                   = 43.1439999341965 sec.
Hardness ratio (energy fluence ratio) = 1.68611

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.56676
Count Ratio (50-100 keV) / (15-25 keV) = 1.44028

Mask shadow pattern

IMX = 1.460439315182145E-02, IMY = 2.015692605363580E-02

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000

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:
-239.024000 -6.532000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6409  22.0072    0.5  19.7  -61.6   9.1072  21.8    0.6	Crab                          
111.9841 -41.6754    2.2  51.6  150.3   7.9774   5.2 ------	UNKNOWN                       
 66.1897  23.5245    3.1  34.4  -77.0   2.2535   3.7 ------	UNKNOWN

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

Time interval of the image:
-6.532000 11.876600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.5159  21.8904    6.3  19.7  -62.1   0.1445   1.8    9.9	Crab                          
109.7267 -38.2462    2.0  47.8  151.2   1.2217   5.7 ------	UNKNOWN                       
101.7909   3.9787    2.7   5.5  126.5   0.2664   4.2 ------	UNKNOWN                       
113.9821  46.8139    2.5  40.6   -0.6   0.4829   4.7 ------	UNKNOWN                       
 97.6173   9.5473    0.2   1.4  -54.1   3.3176  50.2 ------	UNKNOWN                       
 59.6153 -32.7422    2.8  55.3 -156.9   1.1073   4.1 ------	UNKNOWN                       
 58.9294  26.5201    2.2  41.6  -76.0   1.4141   5.2 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
35.676600 937.576590
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6307  22.0225    0.6  18.3  -56.9  33.1483  20.3    0.5	Crab                          
117.6768  42.5179    2.7  37.4   13.1   9.1175   4.3 ------	UNKNOWN                       
 97.1423 -26.6672    2.9  36.2  169.2   7.8742   3.9 ------	UNKNOWN                       
110.5160  45.3427    2.6  37.5    3.4   9.2055   4.4 ------	UNKNOWN                       
103.6978  32.2690    3.0  23.4    1.5   5.8098   3.9 ------	UNKNOWN                       
 97.5825   9.5710    0.4   0.1  -45.2  44.0944  31.7 ------	UNKNOWN                       
106.0851  49.8342    2.6  40.9   -3.2   9.0452   4.5 ------	UNKNOWN                       
 79.7488  64.6117    2.5  56.5  -20.6  19.9721   4.7 ------	UNKNOWN

Plot creation:
Mon Oct 24 05:00:16 EDT 2022