batgrbproduct analysis for trigger=1013243

batgrbproduct Analysis for Trigger=1013243

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 00:44:12 EDT 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1013243
======================================================================

  Trigger: 01013243      Segment: 000

  BAT Trigger Time: 629852877.888   [s; MET]
      Trigger Stop: 629852878.912   [s; MET]
               UTC: 2020-12-16T23:07:31.722580    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 16.3578584277706   Dec: 16.5367566216723  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    15.28
     Image Trigger?:     NO
     Rate S/N Ratio:     69.3181073024935  [ if not an image trigger ]
     Image S/N Ratio:    15.28

  Flight Position:   [ source = BAT ]
    RA: 16.3578584277706   Dec: 16.5367566216723  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 16.3642081338901   Dec: 16.5373096769384  [deg; J2000]  
        { 01h 05m 27.4s , +16d 32' 14.3" }
         +/- 0.838171682628201 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.349467130903331 [arcmin] (formal 1-sigma fit error)
    SNR: 39.1419707635121
 
  Angular difference between Flight and Ground position is 0.366728 arcmin
 
  Partial Coding Fraction: 0.1855469    [ including projection effects ]

  Duration
     T90: 48 +/- 16
        Measured from: -15.8880000114441
                   to: 32.1119999885559     [s; relative to TRIGTIME]
     T50: 16 +/- 16
        Measured from: 0.111999988555908
                   to: 16.1119999885559     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 23.6119999885559     
                   to: 24.6119999885559     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -15.8880000114441     
                   to: 64.1119999885559     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total    13.011278  21.400002  19.895172   7.022695
           0.215753   0.248750   0.236082   0.185725 [error]
 Peak      0.497473   0.712465   0.507836   0.174677
           0.031855   0.037310   0.033662   0.024588 [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 5.65e-06 1.08e-05 1.60e-05 5.08e-05 4.51e-05 8.32e-05   erg/cm2
              Error 2.08e-07 2.36e-07 2.76e-07 2.05e-06 7.30e-07 2.11e-06   erg/cm2
Peak flux Power-law 6.97e+00 6.06e+00 3.61e+00 3.24e+00 1.80e+01 1.99e+01   ph/cm2/s
              Error 7.01e-01 3.83e-01 2.82e-01 5.04e-01 1.13e+00 1.19e+00   ph/cm2/s
 
Fluence   Cutoff-PL 5.45e-06 1.08e-05 1.62e-05 4.51e-05 4.50e-05 7.76e-05   erg/cm2
              Error 2.91e-07 2.40e-07 3.60e-07 5.81e-06 7.54e-07 4.99e-06   erg/cm2
Peak flux Cutoff-PL 6.50e+00 6.28e+00 3.75e+00 2.21e+00 1.78e+01 1.87e+01   ph/cm2/s
              Error 8.53e-01 4.52e-01 3.27e-01 9.53e-01 1.17e+00 1.54e+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    1.435    0.030    -      -           5.88e-02 9.95e-04   41.820 57
CPL   1.323    0.107     379.5 -107.0      6.52e-02 7.22e-03   39.390 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.747    0.103    -      -           1.34e-01 8.32e-03   49.210 57
CPL   1.371    0.423      85.6  -31.3      2.06e-01 1.04e-01   46.720 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: 32.320000 sec.
T50 in the 50-300 keV band: 15.232000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   80.000  -15.888   64.112
T90    48.000  -15.888   32.112
T50    16.000    0.112   16.112
Peak    1.000   23.612   24.612

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
   16.3642    16.5373   0.0049    52.0287   -21.5613        65.8487229     39.142 TRIG_01013243                 
 
Foreground time interval of the image:
-15.888  64.112 (delta_t =  80.000 [sec])
Background time interval of the image:
-64.787 -15.888 (delta_t =  48.899 [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  -15.888 sec. to   64.112 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.43475     ( -0.0301378   0.0300528 )
Norm@50keV  : 5.87778E-02    ( -0.000995505   0.000994116 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   41.82     using 59 bins.
 Reduced chi-squared = 0.733684
# Null hypothesis probability of 9.34e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 80 sec: 7.21670 ( -0.1462  0.14677 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.51315e-05 ( -7.30802e-07  7.30163e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from  -15.888 sec. to   64.112 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.32336     ( -0.124266   0.0898119 )
Epeak [keV] : 379.489      ( -166.024 -379.982 )
Norm@50keV  : 6.52175E-02    ( -0.00661928   0.00782546 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   39.39     using 59 bins.
 Reduced chi-squared = 0.703393
# Null hypothesis probability of 9.55e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 80 sec: 3.53302 ( -0.27854  0.41676 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.49614e-05 ( -7.54547e-07  7.5264e-07 ) ergs/cm2

Band function

Time interval is from  -15.888 sec. to   64.112 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]    : 20.0703  (  )
R^2/D10^2   : 0.295689  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  844.31     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.35e-140 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.834e-06   6.840e-08
25- 50  9.158e-06   2.400e-07
50-150  2.736e-05   6.160e-07
15-150  3.835e-05   6.560e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 30.7806       (     )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  154.35     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 6.56e-11 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.132e-06   1.232e-07
25- 50  1.180e-05   2.320e-07
50-150  2.587e-05   5.200e-07
15-150  4.380e-05   9.280e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.12357        (-0.575062      0.600779)
R1^2/D10^2  : 2.89050        (-0.533781      0.692836)
kT2 [keV]   : 35.1036        (-2.41889      3.00309)
R2^2/D10^2  : 3.48391E-02    (-0.00845495   0.00987972)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   55.60     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 4.52e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.259e-06   2.576e-07
25- 50  1.137e-05   3.480e-07
50-150  2.883e-05   1.044e-06
15-150  4.446e-05   1.284e-06

Peak spectrum fit

Power-law model

Time interval is from   23.612 sec. to   24.612 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.74652     ( -0.101919   0.103787 )
Norm@50keV  : 0.133576    ( -0.00833673   0.00829755 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   49.21     using 59 bins.
 Reduced chi-squared = 0.863333
# Null hypothesis probability of 7.59e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 18.0394 ( -1.1323  1.1346 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.23299e-06 ( -7.9032e-08  7.93005e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   23.612 sec. to   24.612 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.37120     ( -0.443034   0.403578 )
Epeak [keV] : 85.6267      ( -22.9349 -85.6268 )
Norm@50keV  : 0.205916    ( -0.0745458   0.133715 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   46.72     using 59 bins.
 Reduced chi-squared = 0.834286
# Null hypothesis probability of 8.07e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 17.7512 ( -1.1717  1.1748 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.21143e-06 ( -8.35575e-08  8.32129e-08 ) ergs/cm2

Band function

Time interval is from   23.612 sec. to   24.612 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]    : 13.5199  (-0.993716  1.07875)
R^2/D10^2   : 2.83227  (-0.695175   0.917637)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  113.39     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.31e-05 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.097e-07   1.216e-08
25- 50  3.936e-07   3.060e-08
50-150  4.651e-07   5.355e-08
15-150  9.683e-07   7.160e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 119.122       (-23.5375      46.1474)
Norm        : 78.1321       (-6.51508     6.06892)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   47.08     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  2.036e-07   2.005e-08
25- 50  3.637e-07   2.545e-08
50-150  6.467e-07   1.848e-07
15-150  1.214e-06   2.034e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.45728        (-1.40732      1.46713)
R1^2/D10^2  : 16.9784        (-7.43898      17.4625)
kT2 [keV]   : 26.0132        (-5.05867      9.16867)
R2^2/D10^2  : 0.181431    (-0.12206   0.251888)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   49.01     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 7.02e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.821e-07   3.770e-08
25- 50  3.696e-07   6.595e-08
50-150  6.536e-07   2.047e-07
15-150  1.205e-06   2.686e-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: 1.43475     ( -0.0301378   0.0300528 )
Norm@50keV  : 5.87778E-02    ( -0.000995505   0.000994116 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   41.82     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.34e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 80 sec: 7.21655 ( -0.146178  0.146752 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.51255e-05 ( -7.30401e-07  7.3038e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.32351     ( -0.124283   0.0898591 )
Epeak [keV] : 379.943      ( -166.021 -379.988 )
Norm@50keV  : 6.52083E-02    ( -0.00661925   0.00782546 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   39.39     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.55e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 80 sec: 7.14596 ( -0.16265  0.16278 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.49786e-05 ( -7.544e-07  7.5352e-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)  = 1.08e-05
S(50-100 keV) = 1.60e-05

T90 vs. Hardness ratio plot

T90                                   = 48 sec.
Hardness ratio (energy fluence ratio) = 1.48148

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.64473
Count Ratio (50-100 keV) / (15-25 keV) = 1.52907

Mask shadow pattern

IMX = 1.191606335249240E+00, IMY = 4.708600849302003E-01

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:
-64.787400 -15.888000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6412  22.0336    0.7  22.4   91.8   2.2309  16.4    1.2	Crab                          
 84.7449  26.3161    0.8  26.2   86.7   2.4201  15.3 ------	UNKNOWN                       
 21.5259  15.7663    3.4  47.0  -21.8   0.7208   3.4 ------	UNKNOWN                       
 67.5302 -35.4626    2.8  40.8 -127.5   0.9369   4.2 ------	UNKNOWN                       
 10.4449  12.4666    3.2  57.5  -27.0   2.5209   3.7 ------	UNKNOWN                       
 73.5303 -43.5646    4.2  49.1 -133.4   1.4418   2.8 ------	UNKNOWN

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

Time interval of the image:
-15.888000 64.112000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.4850  22.0597    4.9  22.3   91.5  -1.0470  -2.3    8.7	Crab                          
 81.9503  40.5093    3.5  37.3   68.9   2.1667   3.3 ------	UNKNOWN                       
 55.4331  50.9856    2.8  46.9   40.5   3.9919   4.2 ------	UNKNOWN                       
113.0326   7.4604    3.3  44.5  136.4   3.2678   3.6 ------	UNKNOWN                       
113.6999 -10.7283    2.6  48.0  161.2   3.5870   4.4 ------	UNKNOWN                       
 90.7644   8.6557    2.4  22.6  131.8   2.0142   4.9 ------	UNKNOWN                       
 79.9221   8.8076    4.1  12.1  124.2   1.0963   2.9 ------	UNKNOWN                       
 70.1673   8.8767    4.1   4.0   79.4   1.0914   2.8 ------	UNKNOWN                       
 15.2071  36.5044    2.5  57.6    2.0   9.6282   4.5 ------	UNKNOWN                       
116.7305 -27.2148    3.1  57.0  179.1   7.2170   3.7 ------	UNKNOWN                       
 67.8460 -12.7408    2.3  18.1 -127.1   2.2652   5.0 ------	UNKNOWN                       
 76.1814 -21.9285    2.8  28.3 -144.0   2.2308   4.1 ------	UNKNOWN                       
 16.3642  16.5373    0.3  52.0  -21.6  65.8426  39.1 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
626.412590 962.222000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
139.2370 -32.3417    3.7  56.8   -1.8   4.1336   3.1 ------	UNKNOWN                       
154.7482 -30.6369    3.6  56.5  -17.7   4.0381   3.2 ------	UNKNOWN                       
168.2581   1.0350    2.6  34.9  -56.0   2.4006   4.5 ------	UNKNOWN

Plot creation:
Sat Jul 30 07:23:45 EDT 2022