batgrbproduct analysis for trigger=1000613

batgrbproduct Analysis for Trigger=1000613

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 01:10:54 EDT 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1000613
======================================================================

  Trigger: 01000613      Segment: 000

  BAT Trigger Time: 624620817.088   [s; MET]
      Trigger Stop: 624620819.136   [s; MET]
               UTC: 2020-10-17T09:46:31.267800    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 36.6334750470493   Dec: 66.6727003365269  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.33
     Image Trigger?:     NO
     Rate S/N Ratio:     13.9283882771841  [ if not an image trigger ]
     Image S/N Ratio:    7.33

  Flight Position:   [ source = BAT ]
    RA: 36.6334750470493   Dec: 66.6727003365269  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 36.6021095137194   Dec: 66.6707421185928  [deg; J2000]  
        { 02h 26m 24.5s , +66d 40' 14.7" }
         +/- 2.27364055643405 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.16885987910631 [arcmin] (formal 1-sigma fit error)
    SNR: 9.40840053449997
 
  Angular difference between Flight and Ground position is 0.754448 arcmin
 
  Partial Coding Fraction: 0.3789062    [ including projection effects ]

  Duration
     T90: 22.0800000429153 +/- 6.25242363875111
        Measured from: -2.28800010681152
                   to: 19.7919999361038     [s; relative to TRIGTIME]
     T50: 9.4559999704361 +/- 4.88010503176866
        Measured from: -0.432000041007996
                   to: 9.0239999294281     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.867999911308289     
                   to: 1.86799991130829     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -2.76800000667572     
                   to: 23.8719999790192     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.319378   0.499730   0.404992   0.150167
           0.068774   0.070942   0.061082   0.052261 [error]
 Peak      0.048818   0.086839   0.048016   0.019325
           0.014638   0.015208   0.013333   0.011184 [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 1.20e-07 2.22e-07 3.17e-07 9.62e-07 9.06e-07 1.62e-06   erg/cm2
              Error 3.03e-08 3.49e-08 5.81e-08 3.76e-07 1.44e-07 4.19e-07   erg/cm2
Peak flux Power-law 6.48e-01 5.91e-01 3.73e-01 3.60e-01 1.76e+00 1.97e+00   ph/cm2/s
              Error 2.15e-01 1.29e-01 1.04e-01 1.96e-01 3.81e-01 4.21e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.09e-07 2.37e-07 3.30e-07 4.40e-07 8.74e-07 1.12e-06   erg/cm2
              Error 3.54e-08 4.43e-08 6.51e-08 4.79e-07 1.58e-07 5.16e-07   erg/cm2
Peak flux Cutoff-PL 5.26e-01 6.91e-01 3.95e-01 8.56e-02 1.68e+00 1.70e+00   ph/cm2/s
              Error 2.69e-01 1.89e-01 1.34e-01 2.15e-01 4.02e-01 4.65e-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    1.484    0.246    -      -           3.58e-03 5.27e-04   40.430 57
CPL   0.921    1.020      95.9  -28.8      6.91e-03 1.36e-02   39.530 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.666    0.350    -      -           1.34e-02 3.02e-03   61.410 57
CPL   0.189    2.490      56.3  -22.6      8.37e-02 2.41e+00   59.550 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: 8.768000 sec.
T50 in the 50-300 keV band: 3.520000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   26.640   -2.768   23.872
T90    22.080   -2.288   19.792
T50     9.456   -0.432    9.024
Peak    1.000    0.868    1.868

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
   36.6021    66.6707   0.0203    41.9154   170.3374         1.2993607      9.408 TRIG_01000613                 
 
Foreground time interval of the image:
 -2.768  23.872 (delta_t =  26.640 [sec])
Background time interval of the image:
-239.088  -2.768 (delta_t = 236.320 [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 2.048000

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 2.048000

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 2.048000

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   -2.768 sec. to   23.872 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.48355     ( -0.246728   0.246246 )
Norm@50keV  : 3.57583E-03    ( -0.000527377   0.000525867 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   40.43     using 59 bins.
 Reduced chi-squared = 0.709298
# Null hypothesis probability of 9.53e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 26.64 sec: 0.444471 ( -0.06738  0.067621 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.06285e-07 ( -1.43004e-07  1.44162e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from   -2.768 sec. to   23.872 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.920801     ( -1.28655   0.753416 )
Epeak [keV] : 95.8954      ( -38.3595 -95.9249 )
Norm@50keV  : 6.91033E-03    ( -0.00375115   0.0234671 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   39.53     using 59 bins.
 Reduced chi-squared = 0.705893
# Null hypothesis probability of 9.53e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 26.64 sec: 0.435409 ( -0.069693  0.0696 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.727e-07 ( -1.58739e-07  1.56629e-07 ) ergs/cm2

Band function

Time interval is from   -2.768 sec. to   23.872 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]    : 14.8278  (-2.3501  2.96452)
R^2/D10^2   : 5.37247E-02  (-0.0258355   0.046092)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   46.85     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.29e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.600e-08   1.853e-08
25- 50  2.595e-07   5.816e-08
50-150  3.862e-07   1.118e-07
15-150  7.117e-07   1.487e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-85.1912      -199.363)
Norm        : 1.83755       (-0.267287     0.267366)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   39.94     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.58e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.219e-07   6.876e-08
25- 50  2.345e-07   1.310e-07
50-150  5.143e-07   2.836e-07
15-150  8.706e-07   4.823e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 10.2702        (-5.40698      3.63147)
R1^2/D10^2  : 0.151107        (-0.0890057      0.153961)
kT2 [keV]   : 45.2548        (-42.9893      -47.9576)
R2^2/D10^2  : 8.12317E-04    (-0.000662242   0.0226669)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   38.90     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.51e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.244e-08   5.317e-08
25- 50  2.619e-07   1.485e-07
50-150  5.331e-07   2.764e-07
15-150  8.875e-07   4.254e-07

Peak spectrum fit

Power-law model

Time interval is from    0.868 sec. to    1.868 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.66578     ( -0.342401   0.357869 )
Norm@50keV  : 1.34234E-02    ( -0.00304333   0.0029909 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   61.41     using 59 bins.
 Reduced chi-squared = 1.07737
# Null hypothesis probability of 3.21e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 1.76207 ( -0.38008  0.38098 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.24669e-07 ( -2.92093e-08  2.9668e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    0.868 sec. to    1.868 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.189064     ( -3.2731   1.70598 )
Epeak [keV] : 56.3185      ( -10.9124 -56.0966 )
Norm@50keV  : 8.36988E-02    ( -0.086747   4.73456 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   59.55     using 59 bins.
 Reduced chi-squared = 1.06339
# Null hypothesis probability of 3.48e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 1.68166 ( -0.40579  0.39888 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.81008e-08 ( -3.86333e-08  2.33312e-08 ) ergs/cm2

Band function

Time interval is from    0.868 sec. to    1.868 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]    : 12.7364  (-2.44918  3.14811)
R^2/D10^2   : 0.370791  (-0.208865   0.439404)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   60.55     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.49e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.276e-08   5.069e-09
25- 50  4.297e-08   1.498e-08
50-150  4.353e-08   2.121e-08
15-150  9.925e-08   3.460e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 136.464       (-72.0281      -134.144)
Norm        : 7.41515       (-1.74063     2.48163)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   60.43     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.53e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.918e-08   1.108e-08
25- 50  3.505e-08   1.970e-08
50-150  6.643e-08   4.325e-08
15-150  1.207e-07   7.295e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 200.000        (-200      -200)
R1^2/D10^2  : 1.10033E-04        (-0.000110036      -0.000110036)
kT2 [keV]   : 11.3176        (-2.05917      3.19046)
R2^2/D10^2  : 0.525266    (-0.309647   0.154931)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   58.47     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.49e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.581e-08   7.820e-09
25- 50  4.029e-08   2.335e-08
50-150  4.694e-08   2.748e-08
15-150  1.030e-07   5.605e-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: 1.48355     ( -0.246728   0.246246 )
Norm@50keV  : 3.57583E-03    ( -0.000527377   0.000525867 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   40.43     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.53e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 26.64 sec: 0.444460 ( -0.0673749  0.0676175 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.06165e-07 ( -1.42973e-07  1.44226e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.921078     ( -1.28661   0.753343 )
Epeak [keV] : 95.9254      ( -38.3604 -95.9263 )
Norm@50keV  : 6.90783E-03    ( -0.00375112   0.0234668 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   39.53     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.53e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 26.64 sec: 0.435361 ( -0.069676  0.069579 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.73019e-07 ( -1.58766e-07  1.56819e-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)  = 2.22e-07
S(50-100 keV) = 3.17e-07

T90 vs. Hardness ratio plot

T90                                   = 22.0800000429153 sec.
Hardness ratio (energy fluence ratio) = 1.42793

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.5647
Count Ratio (50-100 keV) / (15-25 keV) = 1.26806

Mask shadow pattern

IMX = -8.849975337905884E-01, IMY = -1.506806050536204E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000

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:
-239.088000 -2.768000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6425  22.0059    0.4  12.2   10.6   9.0684  28.4    0.7	Crab                          
 53.0540   3.8135    2.4  40.9   64.1   5.6578   4.8 ------	UNKNOWN                       
 76.3976  -9.6393    3.3  44.2   24.2   1.9405   3.5 ------	UNKNOWN                       
 75.3891  11.6581    2.2  23.5   33.3   1.8169   5.3 ------	UNKNOWN                       
103.0833  -9.6081    2.6  48.0  -12.3   2.6481   4.5 ------	UNKNOWN                       
132.9999  36.0478    3.0  40.9  -92.0   5.5266   3.9 ------	UNKNOWN                       
146.2888  61.3334    2.7  48.0 -129.1   5.7371   4.2 ------	UNKNOWN

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

Time interval of the image:
-2.768000 23.872000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.8285  21.9071    0.0  12.4    9.8  -0.1553  -2.1   12.6	Crab                          
 36.6020  66.6707    1.2  41.9  170.3   1.2996   9.4 ------	UNKNOWN                       
135.2232  42.7403    2.3  41.5 -102.5   1.4355   5.1 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
87.812590 683.512610
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6119  21.9961    1.4  53.5   16.5  20.0587   8.1    1.6	Crab                          
308.1847  40.9475    6.8  52.4 -178.4  -3.8866  -1.7    3.4	Cyg X-3                       
325.9663  38.3318   74.7  47.8  164.4  -0.3052  -0.2    9.7	Cyg X-2                       
160.5749  67.6818    3.3  40.0  -76.8   8.2271   3.5 ------	UNKNOWN

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