batgrbproduct analysis for trigger=1036024

batgrbproduct Analysis for Trigger=1036024

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): Fri Jul 29 23:53:16 EDT 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1036024
======================================================================

  Trigger: 01036024      Segment: 000

  BAT Trigger Time: 636715960.896   [s; MET]
      Trigger Stop: 636715962.944   [s; MET]
               UTC: 2021-03-06T09:32:14.276600    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 331.84758020164   Dec: 10.1749633736152  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.4
     Image Trigger?:     NO
     Rate S/N Ratio:     10.0498756211209  [ if not an image trigger ]
     Image S/N Ratio:    8.4

  Flight Position:   [ source = BAT ]
    RA: 331.84758020164   Dec: 10.1749633736152  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 331.809051374035   Dec: 10.1520465794124  [deg; J2000]  
        { 22h 07m 14.2s , +10d 09' 07.4" }
         +/- 1.89082910189363 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.98101877455982 [arcmin] (formal 1-sigma fit error)
    SNR: 12.2433662169862
 
  Angular difference between Flight and Ground position is 2.658635 arcmin
 
  Partial Coding Fraction: 0.2148438    [ including projection effects ]

  Duration
     T90: 23.8400000333786 +/- 2.22681838349418
        Measured from: -1.7039999961853
                   to: 22.1360000371933     [s; relative to TRIGTIME]
     T50: 15.2319999933243 +/- 3.66326635323667
        Measured from: 1.12800002098083
                   to: 16.3600000143051     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.03600001335144     
                   to: 2.03600001335144     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -2.42400002479553     
                   to: 23.5119999647141     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.572431   0.921102   0.622108   0.278179
           0.086842   0.092101   0.088009   0.096665 [error]
 Peak      0.027474   0.128750   0.111443   0.050477
           0.018420   0.020141   0.019654   0.019809 [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 1.92e-07 3.81e-07 5.89e-07 1.99e-06 1.64e-06 3.14e-06   erg/cm2
              Error 3.90e-08 4.61e-08 8.80e-08 6.60e-07 2.15e-07 7.22e-07   erg/cm2
Peak flux Power-law 4.11e-01 6.63e-01 8.10e-01 1.94e+00 2.44e+00 3.83e+00   ph/cm2/s
              Error 1.92e-01 1.90e-01 1.44e-01 8.18e-01 4.75e-01 7.99e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.93e-07 3.79e-07 5.89e-07 2.05e-06 1.65e-06 3.16e-06   erg/cm2
              Error -------- 5.05e-08 -------- -------- 2.29e-07 8.82e-07   erg/cm2
Peak flux Cutoff-PL 4.32e-01 6.69e-01 7.99e-01 1.93e+00 2.43e+00 3.80e+00   ph/cm2/s
              Error -------- 1.64e-01 1.59e-01 1.09e+00 4.72e-01 9.95e-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    1.375    0.206    -      -           6.53e-03 7.50e-04   67.450 57
CPL   1.378    0.208    9999.3    0.0      6.53e-03 7.87e-03   67.460 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.712    0.358    -      -           2.11e-02 4.41e-03   54.010 57
CPL   0.705    0.643    10000.0    0.0      2.13e-02 -8.37e-03   54.020 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: 2.304000 sec.
T50 in the 50-300 keV band: 1.408000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   25.936   -2.424   23.512
T90    23.840   -1.704   22.136
T50    15.232    1.128   16.360
Peak    1.000    1.036    2.036

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
  331.8091    10.1520   0.0158    37.8036   -72.6200         2.5436999     12.243 TRIG_01036024                 
 
Foreground time interval of the image:
 -2.424  23.512 (delta_t =  25.936 [sec])
Background time interval of the image:
-93.995  -2.424 (delta_t =  91.571 [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   -2.424 sec. to   23.512 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.37520     ( -0.206614   0.206266 )
Norm@50keV  : 6.52671E-03    ( -0.000751343   0.000747782 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   67.45     using 59 bins.
 Reduced chi-squared = 1.18333
# Null hypothesis probability of 1.62e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 25.94 sec: 0.790486 ( -0.090611  0.090775 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.64464e-06 ( -2.13307e-07  2.16249e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from   -2.424 sec. to   23.512 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.37828     ( -0.212003   0.203535 )
Epeak [keV] : 9999.33      ( -9999.36 -9999.36 )
Norm@50keV  : 6.53075E-03    ( -0.00654362   0.00920373 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   67.46     using 59 bins.
 Reduced chi-squared = 1.20464
# Null hypothesis probability of 1.40e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 25.94 sec: 0.792019 ( -0.09522  0.09127 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.64919e-06 ( -2.41131e-07  2.16161e-07 ) ergs/cm2

Band function

Time interval is from   -2.424 sec. to   23.512 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]    : 14.6787  (-2.01027  2.49479)
R^2/D10^2   : 9.68525E-02  (-0.0407677   0.0654016)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   84.75     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.97e-03 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.137e-07   2.565e-08
25- 50  4.428e-07   7.484e-08
50-150  6.429e-07   1.655e-07
15-150  1.199e-06   2.053e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-54.1798      -200)
Norm        : 3.24506       (-0.367419     0.367419)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   69.79     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.19e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.096e-07   1.155e-07
25- 50  4.032e-07   2.233e-07
50-150  8.844e-07   4.837e-07
15-150  1.497e-06   8.302e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 10.6502        (-1.86134      2.01974)
R1^2/D10^2  : 0.247328        (-0.134443      0.135705)
kT2 [keV]   : 200.000        (-161.274      -200)
R2^2/D10^2  : 1.18454E-04    (-3.367e-05   0.000442015)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   64.18     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.86e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.585e-07   5.550e-08
25- 50  4.392e-07   1.519e-07
50-150  1.089e-06   8.174e-07
15-150  1.687e-06   9.418e-07

Peak spectrum fit

Power-law model

Time interval is from    1.036 sec. to    2.036 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.712104     ( -0.389043   0.327468 )
Norm@50keV  : 2.11166E-02    ( -0.00454493   0.00427915 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   54.01     using 59 bins.
 Reduced chi-squared = 0.947544
# Null hypothesis probability of 5.88e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 2.43860 ( -0.47264  0.47692 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.56383e-07 ( -4.68946e-08  4.7069e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    1.036 sec. to    2.036 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.705325     ( -0.885451   0.399709 )
Epeak [keV] : 1.00000E+04      ( -10000 -10000 )
Norm@50keV  : 2.12846E-02    ( -0.0045472   -0.0212846 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   54.02     using 59 bins.
 Reduced chi-squared = 0.964643
# Null hypothesis probability of 5.50e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 2.42547 ( -0.45742  0.48606 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.56289e-07 ( -4.71909e-08  4.7177e-08 ) ergs/cm2

Band function

Time interval is from    1.036 sec. to    2.036 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]    : 23.0970  (-6.45548  15.2147)
R^2/D10^2   : 7.73569E-02  (-0.0780875   0.14784)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   61.96     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.04e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.463e-09   3.116e-09
25- 50  4.059e-08   1.557e-08
50-150  1.617e-07   6.611e-08
15-150  2.098e-07   6.590e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-40.3471      -200)
Norm        : 10.0506       (-1.99923     1.99923)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   72.07     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.62e-02 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.502e-08   1.450e-08
25- 50  4.814e-08   2.810e-08
50-150  1.056e-07   5.985e-08
15-150  1.787e-07   1.028e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 12.0519        (-2.94541      2.16334)
R1^2/D10^2  : 0.441749        (-0.22347      0.623075)
kT2 [keV]   : 200.000        (-200      -200)
R2^2/D10^2  : 6.12987E-04    (-0.000207895   0.00281621)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   45.17     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.25e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.434e-08   8.530e-09
25- 50  4.876e-08   2.750e-08
50-150  2.045e-07   1.399e-07
15-150  2.676e-07   1.676e-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: 1.37520     ( -0.206614   0.206266 )
Norm@50keV  : 6.52671E-03    ( -0.000751343   0.000747782 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   67.45     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.62e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 25.94 sec: 0.790474 ( -0.0906077  0.0907708 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.64442e-06 ( -2.13262e-07  2.16287e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.09205     ( -0.246888   0.0269139 )
Epeak [keV] : 34.7447      (   )
Norm@50keV  : 2.27419E-03    (     )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   66.96     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.50e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 25.94 sec: 0.790900 ( -0.09158  0.0901 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.64352e-06 ( -2.31364e-07  2.1463e-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)  = 3.81e-07
S(50-100 keV) = 5.89e-07

T90 vs. Hardness ratio plot

T90                                   = 23.8400000333786 sec.
Hardness ratio (energy fluence ratio) = 1.54593

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.60911
Count Ratio (50-100 keV) / (15-25 keV) = 1.08678

Mask shadow pattern

IMX = 2.317318179404066E-01, IMY = 7.403615920151344E-01

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:
-93.995400 -2.424000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
288.7051  11.0172   12.2  39.7   -2.2  -0.2690  -0.9    7.0	GRS 1915+105                  
299.5186  35.1497    3.2  14.3   11.3   0.6416   3.6    4.7	Cyg X-1                       
307.9353  40.9022    2.6   5.5    8.3   0.7571   4.4    8.5	Cyg X-3                       
326.2535  38.2627    5.0  11.4 -103.4   0.4129   2.3    5.2	Cyg X-2                       
 33.9671  74.5266    2.2  45.0  159.4   2.2129   5.2 ------	UNKNOWN                       
309.9228  60.6545    2.6  16.3  131.1   0.8470   4.4 ------	UNKNOWN                       
 44.6112  49.0047    2.2  58.6 -172.3   5.5904   5.2 ------	UNKNOWN                       
312.0703  -7.0267    2.6  51.6  -40.6   3.9379   4.5 ------	UNKNOWN                       
326.2881   1.4523    2.5  44.5  -60.7   3.4356   4.6 ------	UNKNOWN

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

Time interval of the image:
-2.424000 23.512000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
288.7688  11.1216    4.2  39.6   -2.3   0.3927   2.7   10.7	GRS 1915+105                  
299.6380  34.9952    0.0  14.3   10.5   0.0987   1.1   12.6	Cyg X-1                       
308.1467  41.0852   35.5   5.3    8.6   0.0283   0.3    8.1	Cyg X-3                       
326.3080  38.2788    6.8  11.4 -103.6  -0.1458  -1.7    6.9	Cyg X-2                       
266.4648  25.3960    2.5  42.4   36.8   0.8997   4.7 ------	UNKNOWN                       
331.8091  10.1521    0.9  37.8  -72.6   2.5441  12.2 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
158.604630 962.194000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
299.3852  35.2139   17.4  58.4  -27.1  -3.4868  -0.7   10.1	Cyg X-1                       
307.9646  41.0604    6.4  49.4  -27.5   4.0343   1.8    9.2	Cyg X-3                       
326.1717  38.3217   26.8  40.4  -43.2  -0.6562  -0.4    0.0	Cyg X-2                       
267.2518  59.6457    4.8  55.8   11.3  12.9141   2.4 ------	UNKNOWN                       
298.2403  48.0360    3.4  50.3  -14.7   7.7999   3.4 ------	UNKNOWN                       
 44.3594  -3.4970    3.5  59.6 -161.2  33.5211   3.3 ------	UNKNOWN                       
329.3465  27.8660    3.4  45.8  -56.9  11.5465   3.4 ------	UNKNOWN

Plot creation:
Sat Jul 30 07:11:39 EDT 2022