batgrbproduct analysis for trigger=1032183

batgrbproduct Analysis for Trigger=1032183

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 00:09:31 EDT 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1032183
======================================================================

  Trigger: 01032183      Segment: 000

  BAT Trigger Time: 634796744.512   [s; MET]
      Trigger Stop: 634796760.896   [s; MET]
               UTC: 2021-02-12T04:25:18.019800    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 72.2609556926666   Dec: 7.23375771191397  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.13
     Image Trigger?:     NO
     Rate S/N Ratio:     10.770329614269  [ if not an image trigger ]
     Image S/N Ratio:    7.13

  Flight Position:   [ source = BAT ]
    RA: 72.2609556926666   Dec: 7.23375771191397  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 72.2502988328754   Dec: 7.21575385417514  [deg; J2000]  
        { 04h 49m 00.1s , +07d 12' 56.7" }
         +/- 1.89965894570356 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.735885674500343 [arcmin] (formal 1-sigma fit error)
    SNR: 12.162149203371
 
  Angular difference between Flight and Ground position is 1.252709 arcmin
 
  Partial Coding Fraction: 1.03125    [ including projection effects ]

  Duration
     T90: 80 +/- 35.7770876399966
        Measured from: -15.5119999647141
                   to: 64.4880000352859     [s; relative to TRIGTIME]
     T50: 32 +/- 22.6274169979695
        Measured from: 0.48800003528595
                   to: 32.4880000352859     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 7.98800003528595     
                   to: 8.98800003528595     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -15.5119999647141     
                   to: 80.4880000352859     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.545028   0.610257   0.288170   0.108470
           0.062161   0.063891   0.055665   0.048490 [error]
 Peak      0.021733   0.021777   0.017574  -0.001469
           0.006587   0.006743   0.005777   0.004692 [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 1.55e-07 2.29e-07 2.55e-07 5.37e-07 8.02e-07 1.17e-06   erg/cm2
              Error 2.67e-08 2.75e-08 5.28e-08 2.23e-07 1.21e-07 2.78e-07   erg/cm2
Peak flux Power-law 1.84e-01 1.69e-01 1.08e-01 1.06e-01 5.06e-01 5.68e-01   ph/cm2/s
              Error 7.89e-02 4.94e-02 4.50e-02 8.77e-02 1.46e-01 1.71e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.55e-07 2.12e-07 2.29e-07 5.50e-07 7.46e-07 1.14e-06   erg/cm2
              Error 2.70e-08 4.02e-08 3.81e-08 1.92e-07 1.33e-07 6.38e-07   erg/cm2
Peak flux Cutoff-PL 1.67e-01 1.86e-01 1.12e-01 4.17e-02 4.94e-01 5.07e-01   ph/cm2/s
              Error 1.29e-01 6.17e-02 5.24e-02 6.63e-02 1.50e-01 1.64e-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    1.846    0.229    -      -           9.08e-04 1.35e-04   83.080 57
CPL   1.836    0.937     532.9   -0.0      9.21e-04 1.03e-03   83.080 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.646    0.510    -      -           3.88e-03 1.27e-03   45.000 57
CPL   0.840    2.147      65.0   -6.5      1.08e-02 1.86e-01   44.530 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   96.000  -15.512   80.488
T90    80.000  -15.512   64.488
T50    32.000    0.488   32.488
Peak    1.000    7.988    8.988

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
   72.2503     7.2158   0.0159     5.2505   -65.0454         1.4939900     12.162 TRIG_01032183                 
 
Foreground time interval of the image:
-15.512  67.589 (delta_t =  83.101 [sec])
Background time interval of the image:
-239.512 -15.512 (delta_t = 224.000 [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

8 ms binning

From T100_start-3 s to T100_start+3 s

2 ms binning

From T100_start-1 s to T100_start+1 s

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  -15.512 sec. to   80.488 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.84622     ( -0.223366   0.235439 )
Norm@50keV  : 9.07576E-04    ( -0.000137411   0.000133529 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   83.08     using 59 bins.
 Reduced chi-squared = 1.45754
# Null hypothesis probability of 1.37e-02 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 96 sec: 0.127381 ( -0.015202  0.015203 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.01311e-07 ( -1.19347e-07  1.22645e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from  -15.512 sec. to   80.488 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.83569     ( -1.04404   0.829999 )
Epeak [keV] : 532.943      ( -9988.61 -9988.62 )
Norm@50keV  : 9.20720E-04    ( -0.000136974   0.00192961 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   83.08     using 59 bins.
 Reduced chi-squared = 1.48357
# Null hypothesis probability of 1.09e-02 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 96 sec: 0.127377 ( -0.015834  0.015203 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.46193e-07 ( -1.4954e-07  1.16272e-07 ) ergs/cm2

Band function

Time interval is from  -15.512 sec. to   80.488 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]    : 9.73573  (-1.30897  1.55634)
R^2/D10^2   : 6.55540E-02  (-0.0281698   0.047824)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   97.29     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 7.06e-04 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.203e-07   2.526e-08
25- 50  2.879e-07   5.237e-08
50-150  1.390e-07   4.616e-08
15-150  5.471e-07   1.034e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 85.1699       (-30.6826      68.3722)
Norm        : 0.585538       (-0.0979837     0.129079)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   83.91     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.17e-02 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.464e-07   2.573e-08
25- 50  2.445e-07   3.706e-08
50-150  3.596e-07   1.855e-07
15-150  7.505e-07   2.035e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.71970        (-1.79299      1.66294)
R1^2/D10^2  : 0.137097        (-0.0685309      0.0878915)
kT2 [keV]   : 52.6715        (-30.961      -52.6715)
R2^2/D10^2  : 1.48842E-04    (-0.000133229   0.00204439)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   81.39     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.19e-02 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.421e-07   4.598e-08
25- 50  2.571e-07   8.789e-08
50-150  4.429e-07   2.362e-07
15-150  8.421e-07   3.235e-07

Peak spectrum fit

Power-law model

Time interval is from    7.988 sec. to    8.988 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.64594     ( -0.487861   0.532885 )
Norm@50keV  : 3.87681E-03    ( -0.00129383   0.00123844 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   45.00     using 59 bins.
 Reduced chi-squared = 0.789474
# Null hypothesis probability of 8.75e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 0.505559 ( -0.146358  0.14639 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.60753e-08 ( -1.22828e-08  1.28496e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    7.988 sec. to    8.988 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.839565     ( -2.90191   1.39206 )
Epeak [keV] : 65.0401      ( -52.1155 -65.0399 )
Norm@50keV  : 1.07753E-02    ( -0.0107755   0.360292 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   44.53     using 59 bins.
 Reduced chi-squared = 0.795179
# Null hypothesis probability of 8.65e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 0.493638 ( -0.149705  0.149451 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.36574e-08 ( -1.23657e-08  1.4079e-08 ) ergs/cm2

Band function

Time interval is from    7.988 sec. to    8.988 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]    : 13.2240  (-3.99483  5.54213)
R^2/D10^2   : 9.04219E-02  (-0.0903565   0.23509)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   46.43     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.40e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.352e-09   2.111e-09
25- 50  1.176e-08   7.145e-09
50-150  1.313e-08   8.665e-09
15-150  2.824e-08   1.736e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 150.638       (-98.6292      -145.996)
Norm        : 2.09341       (-0.632712     1.00199)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   44.67     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.82e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.219e-09   3.158e-09
25- 50  9.923e-09   6.010e-09
50-150  2.106e-08   1.259e-08
15-150  3.620e-08   2.177e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.60234        (-4.52049      10.8019)
R1^2/D10^2  : 2.17080        (-2.19074      10.8525)
kT2 [keV]   : 17.3013        (-6.05879      -17.2002)
R2^2/D10^2  : 2.91318E-02    (-0.0295611   0.134271)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   43.99     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.56e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.512e-09   3.178e-09
25- 50  9.910e-09   5.425e-09
50-150  1.709e-08   1.127e-08
15-150  3.251e-08   1.810e-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: 1.81610     ( -0.21459   0.225226 )
Norm@50keV  : 1.01603E-03    ( -0.000146637   0.000142794 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   81.09     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.97e-02 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 83.1 sec: 0.140889 ( -0.01636  0.0163606 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.76911e-07 ( -1.11804e-07  1.14697e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.70218     ( -0.972501   0.525774 )
Epeak [keV] : 110.025      ( -111.031 -111.045 )
Norm@50keV  : 1.18284E-03    ( -0.000740836   0.00315728 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   81.04     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.60e-02 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 83.1 sec: 0.140230 ( -0.016988  0.016813 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.66079e-07 ( -1.37474e-07  1.23581e-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)  = 2.29e-07
S(50-100 keV) = 2.55e-07

T90 vs. Hardness ratio plot

T90                                   = 80 sec.
Hardness ratio (energy fluence ratio) = 1.11354

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.11968
Count Ratio (50-100 keV) / (15-25 keV) = 0.528725

Mask shadow pattern

IMX = 3.877095071584416E-02, IMY = 8.331681337943837E-02

TIME vs. PHA plot around the trigger time

TIME vs. DetID plot around the trigger time

100 us light curve (15-350 keV)

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 -15.512000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6511  22.0146    0.3  17.5   27.6   9.5857  35.1    1.0	Crab                          
 74.0320 -20.5541    2.4  26.4 -165.5   1.2649   4.7 ------	UNKNOWN                       
 46.6734 -41.8727    4.8  55.1 -144.9   4.8850   2.4 ------	UNKNOWN

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

Time interval of the image:
-15.512000 67.588600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6996  22.0340    6.4  17.5   27.7  -0.2393  -1.8    3.9	Crab                          
 73.6632  43.4436    2.1  37.9    3.3   1.0649   5.4 ------	UNKNOWN                       
 77.9158 -12.9506    2.3  18.6 -174.3   0.6718   5.1 ------	UNKNOWN                       
 72.2503   7.2157    0.9   5.3  -65.0   1.4939  12.2 ------	UNKNOWN                       
 39.7428 -16.1475    2.3  43.1 -113.4   2.4307   4.9 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
91.588610 928.988610
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6601  22.0208    0.8  18.4   47.7  33.7064  15.2    1.5	Crab                          
101.8574   2.9257    2.7  29.8  109.1  12.3977   4.3 ------	UNKNOWN                       
 41.7647  55.5876    3.0  54.1   -8.5  22.5806   3.8 ------	UNKNOWN                       
 30.8701  45.8224    3.3  52.5  -23.3  22.7887   3.5 ------	UNKNOWN                       
 40.0926 -18.0578    3.6  40.6 -116.7  20.2243   3.2 ------	UNKNOWN                       
 24.8602  26.5700    2.6  48.9  -48.6  46.1594   4.4 ------	UNKNOWN

Plot creation:
Sat Jul 30 07:15:32 EDT 2022