batgrbproduct analysis for trigger=1001130

batgrbproduct Analysis for Trigger=1001130

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 01:07:09 EDT 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1001130
======================================================================

  Trigger: 01001130      Segment: 000

  BAT Trigger Time: 625004864.512   [s; MET]
      Trigger Stop: 625004868.608   [s; MET]
               UTC: 2020-10-21T20:27:18.666520    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 12.549823305115   Dec: -55.8391953004332  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    11.84
     Image Trigger?:     NO
     Rate S/N Ratio:     12.2882057274445  [ if not an image trigger ]
     Image S/N Ratio:    11.84

  Flight Position:   [ source = BAT ]
    RA: 12.549823305115   Dec: -55.8391953004332  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 12.5027063090947   Dec: -55.8622169282304  [deg; J2000]  
        { 00h 50m 00.6s , -55d 51' 44.0" }
         +/- 1.33561878799544 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.654015750808458 [arcmin] (formal 1-sigma fit error)
    SNR: 20.1174033452512
 
  Angular difference between Flight and Ground position is 2.103900 arcmin
 
  Partial Coding Fraction: 0.8046875    [ including projection effects ]

  Duration
     T90: 24.3839999437332 +/- 6.76097773129311
        Measured from: -3.12000000476837
                   to: 21.2639999389648     [s; relative to TRIGTIME]
     T50: 9.70799994468689 +/- 2.4339737203546
        Measured from: 1.1360000371933
                   to: 10.8439999818802     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -3.62399995326996     
                   to: -2.62399995326996     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -4.18799996376038     
                   to: 27.9520000219345     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.522343   0.630853   0.466862   0.104708
           0.045453   0.047545   0.041327   0.035200 [error]
 Peak      0.042761   0.044248   0.030672   0.009365
           0.008366   0.008668   0.007357   0.006306 [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 1.58e-07 2.69e-07 3.47e-07 9.13e-07 1.03e-06 1.69e-06   erg/cm2
              Error 2.15e-08 2.24e-08 4.08e-08 2.26e-07 9.62e-08 2.60e-07   erg/cm2
Peak flux Power-law 4.31e-01 3.27e-01 1.65e-01 1.20e-01 9.79e-01 1.04e+00   ph/cm2/s
              Error 1.19e-01 6.78e-02 5.59e-02 7.56e-02 2.02e-01 2.19e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.57e-07 2.70e-07 3.50e-07 8.55e-07 1.02e-06 1.56e-06   erg/cm2
              Error 2.19e-08 2.55e-08 4.11e-08 2.99e-07 1.02e-07 3.15e-07   erg/cm2
Peak flux Cutoff-PL 4.02e-01 3.67e-01 1.63e-01 3.87e-02 9.63e-01 9.71e-01   ph/cm2/s
              Error 1.31e-01 9.05e-02 6.69e-02 7.58e-02 2.02e-01 2.14e-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    1.626    0.149    -      -           3.42e-03 2.97e-04   46.150 57
CPL   1.550    0.586     261.1    0.0      3.74e-03 2.62e-03   46.190 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.984    0.367    -      -           6.57e-03 1.72e-03   55.220 57
CPL   1.075    1.382      41.9   -0.7      2.25e-02 1.24e-01   53.780 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: 24.768000 sec.
T50 in the 50-300 keV band: 14.528000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   32.140   -4.188   27.952
T90    24.384   -3.120   21.264
T50     9.708    1.136   10.844
Peak    1.000   -3.624   -2.624

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
   12.5027   -55.8622   0.0095    29.1128    12.9936         1.8343177     20.117 TRIG_01001130                 
 
Foreground time interval of the image:
 -4.188  27.952 (delta_t =  32.140 [sec])
Background time interval of the image:
-239.512  -4.188 (delta_t = 235.324 [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 4.096000

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 4.096000

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 4.096000

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   -4.188 sec. to   27.952 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.62583     ( -0.147874   0.150283 )
Norm@50keV  : 3.41855E-03    ( -0.000298831   0.000295852 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   46.15     using 59 bins.
 Reduced chi-squared = 0.809649
# Null hypothesis probability of 8.48e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 32.14 sec: 0.442903 ( -0.03676  0.036812 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.0246e-06 ( -9.56891e-08  9.67067e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -4.188 sec. to   27.952 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.55024     ( -0.542977   0.629536 )
Epeak [keV] : 261.139      ( -390.827 -390.827 )
Norm@50keV  : 3.73832E-03    ( -0.00198731   0.00324655 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   46.19     using 59 bins.
 Reduced chi-squared = 0.824821
# Null hypothesis probability of 8.22e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 32.14 sec: 0.442135 ( -0.038142  0.037418 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.02133e-06 ( -1.05539e-07  9.89751e-08 ) ergs/cm2

Band function

Time interval is from   -4.188 sec. to   27.952 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]    : 13.6804  (-1.54295  1.76339)
R^2/D10^2   : 6.61749E-02  (-0.0232381   0.0356243)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   92.08     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 2.24e-03 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.424e-08   1.287e-08
25- 50  3.061e-07   3.161e-08
50-150  3.727e-07   6.639e-08
15-150  7.630e-07   8.469e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 168.887       (-56.912      -168.751)
Norm        : 1.80497       (-0.160971     0.185586)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   47.09     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.23e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.473e-07   2.938e-08
25- 50  2.776e-07   1.028e-07
50-150  5.742e-07   2.892e-07
15-150  9.992e-07   4.197e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.05515        (-1.28683      1.55151)
R1^2/D10^2  : 0.862141        (-0.479587      1.30703)
kT2 [keV]   : 25.1374        (-5.06287      8.92189)
R2^2/D10^2  : 6.20702E-03    (-0.00400918   0.00787514)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   45.45     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.17e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.586e-07   5.419e-08
25- 50  2.633e-07   8.588e-08
50-150  5.948e-07   2.285e-07
15-150  1.017e-06   3.212e-07

Peak spectrum fit

Power-law model

Time interval is from   -3.624 sec. to   -2.624 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.98377     ( -0.346917   0.38614 )
Norm@50keV  : 6.57166E-03    ( -0.0017547   0.00169303 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   55.22     using 59 bins.
 Reduced chi-squared = 0.968772
# Null hypothesis probability of 5.42e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 0.978536 ( -0.201858  0.201854 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.05662e-08 ( -1.49468e-08  1.5505e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -3.624 sec. to   -2.624 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.07451     ( -1.71231   1.05153 )
Epeak [keV] : 41.9411      ( -40.497 -41.9421 )
Norm@50keV  : 2.25474E-02    ( -0.0225433   0.224852 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   53.78     using 59 bins.
 Reduced chi-squared = 0.960357
# Null hypothesis probability of 5.59e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 0.962681 ( -0.201233  0.202179 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.63417e-08 ( -1.48224e-08  1.63475e-08 ) ergs/cm2

Band function

Time interval is from   -3.624 sec. to   -2.624 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]    : 9.76572  (-2.54207  3.39706)
R^2/D10^2   : 0.511306  (-0.3446   1.11179)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   59.24     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.94e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.847e-09   4.398e-09
25- 50  2.367e-08   8.250e-09
50-150  1.153e-08   6.691e-09
15-150  4.504e-08   1.723e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 65.4534       (-28.5162      74.0808)
Norm        : 5.02872       (-1.40008     1.97402)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   53.86     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 5.94e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.280e-08   4.091e-09
25- 50  1.999e-08   6.830e-09
50-150  2.440e-08   1.627e-08
15-150  5.718e-08   2.119e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.17903        (-1.79821      2.48593)
R1^2/D10^2  : 3.90321        (-3.00514      7.53533)
kT2 [keV]   : 17.3406        (-5.68508      12.1576)
R2^2/D10^2  : 4.19294E-02    (-0.0338409   0.169994)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   52.05     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 5.88e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.346e-08   8.005e-09
25- 50  1.924e-08   1.014e-08
50-150  2.516e-08   1.559e-08
15-150  5.786e-08   2.950e-08

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: 1.62583     ( -0.147874   0.150283 )
Norm@50keV  : 3.41855E-03    ( -0.000298831   0.000295852 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   46.15     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.48e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 32.14 sec: 0.442887 ( -0.0367571  0.0368099 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.02446e-06 ( -9.58174e-08  9.67228e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.58754     ( -0.557464   0.600147 )
Epeak [keV] : 523.558      ( -523.558 -523.558 )
Norm@50keV  : 3.57931E-03    ( -0.00168071   0.00326533 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   46.13     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.24e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 32.14 sec: 0.441929 ( -0.038007  0.037477 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.01865e-06 ( -1.0271e-07  1.02051e-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)  = 2.69e-07
S(50-100 keV) = 3.47e-07

T90 vs. Hardness ratio plot

T90                                   = 24.3839999437332 sec.
Hardness ratio (energy fluence ratio) = 1.28996

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.20774
Count Ratio (50-100 keV) / (15-25 keV) = 0.893784

Mask shadow pattern

IMX = 5.426257485623531E-01, IMY = -1.252113140484960E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 4.096000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 4.096000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 4.096000

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:
-239.512000 -4.188000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
135.6163 -40.4993    6.3  47.4 -130.1   2.0289   1.8    5.2	Vela X-1                      
  0.0334 -52.3766    2.6  37.2   13.0   1.7400   4.5 ------	UNKNOWN                       
275.8011 -70.5796    3.9  52.6  -40.8   4.1478   2.9 ------	UNKNOWN                       
148.2935 -61.7937    3.7  41.2  -98.7   3.4608   3.2 ------	UNKNOWN                       
135.9069 -37.2959    2.8  49.8 -133.0   5.2639   4.1 ------	UNKNOWN

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

Time interval of the image:
-4.188000 27.952000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
135.5457 -40.5341    9.5  47.4 -130.1  -0.4008  -1.2    1.5	Vela X-1                      
 28.8062 -24.4720    2.0  40.4   70.8   1.7599   5.6 ------	UNKNOWN                       
 47.6077 -28.9056    2.7  28.8   94.0   0.5343   4.3 ------	UNKNOWN                       
 58.0369 -47.4452    2.2   8.6   93.7   0.4164   5.1 ------	UNKNOWN                       
 12.5027 -55.8622    0.6  29.1   13.0   1.8344  20.1 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
85.988620 916.788600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 41.1089 -37.9249    2.8  26.2  133.8   3.9295   4.1 ------	UNKNOWN                       
 25.1144 -47.8780    2.5  11.1  124.3   3.1642   4.6 ------	UNKNOWN                       
291.1834 -38.6342    3.0  54.4  -33.2  16.0317   3.9 ------	UNKNOWN                       
289.9973 -44.8292    2.8  50.6  -39.5   9.5226   4.1 ------	UNKNOWN

Plot creation:
Sat Jul 30 07:29:20 EDT 2022