batgrbproduct analysis for trigger=1033264

batgrbproduct Analysis for Trigger=1033264

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): Sat Jul 30 00:05:13 EDT 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1033264
======================================================================

  Trigger: 01033264      Segment: 000

  BAT Trigger Time: 635297168.832   [s; MET]
      Trigger Stop: 635297169.856   [s; MET]
               UTC: 2021-02-17T23:25:42.306620    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 97.6103563204343   Dec: 68.7148663144961  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    13.81
     Image Trigger?:     NO
     Rate S/N Ratio:     30.1662062579967  [ if not an image trigger ]
     Image S/N Ratio:    13.81

  Flight Position:   [ source = BAT ]
    RA: 97.6103563204343   Dec: 68.7148663144961  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 97.5571228385546   Dec: 68.7132740600339  [deg; J2000]  
        { 06h 30m 13.7s , +68d 42' 47.8" }
         +/- 1.40065927080951 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.635981327716574 [arcmin] (formal 1-sigma fit error)
    SNR: 18.7962819599304
 
  Angular difference between Flight and Ground position is 1.163426 arcmin
 
  Partial Coding Fraction: 0.3085938    [ including projection effects ]

  Duration
     T90: 4 +/- 1.4142135623731
        Measured from: -0.832000017166138
                   to: 3.16799998283386     [s; relative to TRIGTIME]
     T50: 1 +/- 1
        Measured from: 0.167999982833862
                   to: 1.16799998283386     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.167999982833862     
                   to: 1.16799998283386     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.832000017166138     
                   to: 3.16799998283386     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.322712   0.439980   0.235825   0.049488
           0.030654   0.032386   0.027857   0.023582 [error]
 Peak      0.154019   0.225873   0.129668   0.032373
           0.017227   0.018831   0.015978   0.012513 [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 1.29e-07 1.85e-07 1.96e-07 3.86e-07 6.32e-07 8.96e-07   erg/cm2
              Error 1.73e-08 1.63e-08 2.66e-08 1.05e-07 6.27e-08 1.32e-07   erg/cm2
Peak flux Power-law 2.03e+00 1.66e+00 9.17e-01 7.46e-01 4.93e+00 5.35e+00   ph/cm2/s
              Error 3.16e-01 1.68e-01 1.29e-01 2.05e-01 5.04e-01 5.32e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.21e-07 1.98e-07 1.97e-07 1.58e-07 6.00e-07 6.76e-07   erg/cm2
              Error 1.99e-08 2.21e-08 2.96e-08 1.80e-07 7.17e-08 2.02e-07   erg/cm2
Peak flux Cutoff-PL 1.90e+00 1.74e+00 9.47e-01 4.61e-01 4.86e+00 5.05e+00   ph/cm2/s
              Error 3.74e-01 2.18e-01 1.44e-01 3.64e-01 5.18e-01 6.44e-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    1.913    0.158    -      -           1.71e-02 1.72e-03   63.240 57
CPL   1.330    0.757      51.3  -17.5      3.60e-02 4.44e-02   61.140 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.853    0.174    -      -           3.50e-02 3.85e-03   58.360 57
CPL   1.420    0.825      63.9  -20.8      5.95e-02 6.65e-02   57.290 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: 0.768000 sec.
T50 in the 50-300 keV band: 0.384000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    4.000   -0.832    3.168
T90     4.000   -0.832    3.168
T50     1.000    0.168    1.168
Peak    1.000    0.168    1.168

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
   97.5571    68.7133   0.0102    45.6972   174.9711         1.1413343     18.796 TRIG_01033264                 
 
Foreground time interval of the image:
 -0.832   3.168 (delta_t =   4.000 [sec])
Background time interval of the image:
-239.832  -0.832 (delta_t = 239.000 [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   -0.832 sec. to    3.168 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.91282     ( -0.154892   0.160385 )
Norm@50keV  : 1.71398E-02    ( -0.00173832   0.00171168 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   63.24     using 59 bins.
 Reduced chi-squared = 1.10947
# Null hypothesis probability of 2.65e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 4 sec: 2.47340 ( -0.22361  0.22389 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.30508e-07 ( -6.23488e-08  6.29816e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.832 sec. to    3.168 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.32999     ( -0.84025   0.674408 )
Epeak [keV] : 51.2799      ( -16.3111 -51.2753 )
Norm@50keV  : 3.60089E-02    ( -0.0194093   0.0694117 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   61.14     using 59 bins.
 Reduced chi-squared = 1.09179
# Null hypothesis probability of 2.97e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 4 sec: 2.42077 ( -0.23358  0.2327 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.01588e-07 ( -7.16196e-08  7.1714e-08 ) ergs/cm2

Band function

Time interval is from   -0.832 sec. to    3.168 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]    : 11.0076  (-1.03287  1.14816)
R^2/D10^2   : 0.816494  (-0.259823   0.375342)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   80.69     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 2.12e-02 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.270e-08   1.312e-08
25- 50  2.340e-07   2.488e-08
50-150  1.603e-07   3.330e-08
15-150  4.770e-07   5.140e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 80.4223       (-19.7618      31.4995)
Norm        : 11.6122       (-1.52809     1.81394)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   61.08     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.32e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.206e-07   1.640e-08
25- 50  1.987e-07   1.874e-08
50-150  2.815e-07   9.862e-08
15-150  6.008e-07   9.600e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.69571        (-2.73271      1.63958)
R1^2/D10^2  : 1.69605        (-0.736942      3.39818)
kT2 [keV]   : 39.2955        (-22.2061      -39.7437)
R2^2/D10^2  : 4.33926E-03    (-0.00371295   0.0926861)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   62.11     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 2.38e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.015e-07   2.298e-08
25- 50  2.210e-07   5.186e-08
50-150  2.899e-07   1.423e-07
15-150  6.124e-07   1.934e-07

Peak spectrum fit

Power-law model

Time interval is from    0.168 sec. to    1.168 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.85343     ( -0.16996   0.177159 )
Norm@50keV  : 3.50346E-02    ( -0.00388038   0.00382008 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   58.36     using 59 bins.
 Reduced chi-squared = 1.02386
# Null hypothesis probability of 4.25e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 4.93163 ( -0.50404  0.50478 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.22174e-07 ( -3.55253e-08  3.57493e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    0.168 sec. to    1.168 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.41964     ( -0.843719   0.8068 )
Epeak [keV] : 63.8578      ( -22.2027 -63.8564 )
Norm@50keV  : 5.95113E-02    ( -0.0261577   0.106872 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   57.29     using 59 bins.
 Reduced chi-squared = 1.02304
# Null hypothesis probability of 4.27e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 4.86070 ( -0.51885  0.51791 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.14355e-07 ( -3.84751e-08  3.81376e-08 ) ergs/cm2

Band function

Time interval is from    0.168 sec. to    1.168 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]    : 11.8229  (-1.26208  1.43343)
R^2/D10^2   : 1.27010  (-0.448353   0.672709)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   76.87     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 4.09e-02 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.750e-08   6.665e-09
25- 50  1.160e-07   1.569e-08
50-150  9.648e-08   2.070e-08
15-150  2.499e-07   3.230e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 95.6615       (-26.907      47.2873)
Norm        : 22.0560       (-3.0283     3.59508)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   57.34     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 4.62e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.763e-08   8.670e-09
25- 50  9.875e-08   1.123e-08
50-150  1.560e-07   5.905e-08
15-150  3.124e-07   6.805e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.50150        (-3.1882      2.06807)
R1^2/D10^2  : 3.39083        (-1.67926      11.0578)
kT2 [keV]   : 31.6231        (-14.5021      109.742)
R2^2/D10^2  : 1.95366E-02    (-0.018574   0.173393)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   59.31     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.21e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.915e-08   1.785e-08
25- 50  1.082e-07   3.394e-08
50-150  1.573e-07   7.219e-08
15-150  3.147e-07   1.157e-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: 1.91282     ( -0.154892   0.160385 )
Norm@50keV  : 1.71398E-02    ( -0.00173832   0.00171168 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   63.24     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 2.65e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 4 sec: 2.47324 ( -0.223581  0.223866 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.30404e-07 ( -6.24452e-08  6.29908e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.32921     ( -0.83999   0.674668 )
Epeak [keV] : 51.2661      ( -16.2367 -51.2738 )
Norm@50keV  : 3.60460E-02    ( -0.0195227   0.0694103 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   61.14     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 2.97e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 4 sec: 2.42026 ( -0.23345  0.23263 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.01748e-07 ( -7.1708e-08  7.1768e-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)  = 1.85e-07
S(50-100 keV) = 1.96e-07

T90 vs. Hardness ratio plot

T90                                   = 4 sec.
Hardness ratio (energy fluence ratio) = 1.05946

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.36338
Count Ratio (50-100 keV) / (15-25 keV) = 0.73076

Mask shadow pattern

IMX = -1.020694682050474E+00, IMY = -8.981749307703840E-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:
-239.832000 -0.832000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.4511  35.4599    7.6  32.8  -39.9  -0.5320  -1.5    7.1	Her X-1                       
337.2244  64.9205    2.8  47.9 -129.2   5.1747   4.2 ------	UNKNOWN                       
350.9000  65.0983    3.1  51.0 -135.6   4.7603   3.8 ------	UNKNOWN

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

Time interval of the image:
-0.832000 3.168000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.2947  35.3735    5.9  32.8  -39.7   0.0683   1.9    8.2	Her X-1                       
175.6420  32.4063    2.7  39.1   87.6   0.4736   4.3 ------	UNKNOWN                       
 97.5571  68.7133    0.6  45.7  175.0   1.1413  18.8 ------	UNKNOWN                       
345.0177  65.1491    2.1  49.6 -132.9   0.6802   5.5 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
81.868600 508.168600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6587  22.0145    1.5  47.5  167.6   8.0516   7.5    1.4	Crab                          
188.7156  43.7285    2.4  50.3   39.9   7.7691   4.8 ------	UNKNOWN                       
194.3322  78.1325    3.7  25.4   -1.7   1.2537   3.1 ------	UNKNOWN                       
245.0676  50.3562    3.2  58.5   -6.4  10.3493   3.7 ------	UNKNOWN                       
 56.2236  17.7366    3.0  57.1 -161.5   7.1506   3.8 ------	UNKNOWN                       
 42.8104  24.0486    3.9  55.2 -144.8   9.3603   3.0 ------	UNKNOWN

Plot creation:
Sat Jul 30 07:14:55 EDT 2022