batgrbproduct analysis for trigger=1064221

batgrbproduct Analysis for Trigger=1064221

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Fri Jul 29 22:34:12 EDT 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1064221
======================================================================

  Trigger: 01064221      Segment: 000

  BAT Trigger Time: 650023448   [s; MET]
      Trigger Stop: 650023560   [s; MET]
               UTC: 2021-08-07T10:03:40.494060    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 76.6773872559415   Dec: 58.2452268281704  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    12.28
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    12.28

  Flight Position:   [ source = BAT ]
    RA: 76.6773872559415   Dec: 58.2452268281704  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 76.7173235115483   Dec: 58.2595832256889  [deg; J2000]  
        { 05h 06m 52.2s , +58d 15' 34.5" }
         +/- 2.661542925371 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.22023049267872 [arcmin] (formal 1-sigma fit error)
    SNR: 7.5125062178386
 
  Angular difference between Flight and Ground position is 1.526970 arcmin
 
  Partial Coding Fraction: 0.28125    [ including projection effects ]

  Duration
     T90: 143.664000034332 +/- 45.6177621579512
        Measured from: 15.1599999666214
                   to: 158.824000000954     [s; relative to TRIGTIME]
     T50: 62.1599999666214 +/- 5.15888353618346
        Measured from: 72.2480000257492
                   to: 134.407999992371     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 70.5240000486374     
                   to: 71.5240000486374     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -9.44799995422363     
                   to: 170.968000054359     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     2.126463   3.878168   4.038354   1.822641
           0.157738   0.165909   0.150414   0.131000 [error]
 Peak      0.046485   0.040886   0.108815   0.053549
           0.012805   0.014727   0.013785   0.011853 [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 7.58e-07 1.74e-06 3.18e-06 1.38e-05 8.64e-06 1.95e-05   erg/cm2
              Error 7.16e-08 9.78e-08 1.41e-07 1.45e-06 3.70e-07 1.49e-06   erg/cm2
Peak flux Power-law 3.23e-01 5.06e-01 5.96e-01 1.36e+00 1.82e+00 2.78e+00   ph/cm2/s
              Error 1.51e-01 1.47e-01 1.01e-01 5.07e-01 3.65e-01 5.04e-01   ph/cm2/s
 
Fluence   Cutoff-PL 7.36e-07 1.75e-06 3.21e-06 1.22e-05 8.61e-06 1.79e-05   erg/cm2
              Error 8.76e-08 1.01e-07 1.71e-07 2.38e-06 3.78e-07 3.27e-06   erg/cm2
Peak flux Cutoff-PL 3.13e-01 5.03e-01 6.10e-01 1.19e+00 1.81e+00 2.75e+00   ph/cm2/s
              Error 2.20e-01 1.58e-01 1.32e-01 7.32e-01 3.73e-01 7.83e-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    1.133    0.077    -      -           4.63e-03 2.03e-04   53.420 57
CPL   1.033    0.225     585.1    0.0      5.10e-03 1.18e-03   53.100 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.764    0.339    -      -           1.58e-02 3.34e-03   53.220 57
CPL   0.755    0.900    10000.0    0.0      1.59e-02 -6.25e-03   53.220 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: 89.984000 sec.
T50 in the 50-300 keV band: 54.400000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  180.416   -9.448  170.968
T90   143.664   15.160  158.824
T50    62.160   72.248  134.408
Peak    1.000   70.524   71.524
  • 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
       76.7173    58.2596   0.0255    49.3168     3.8274        17.0093023      7.513 TRIG_01064221                 
     
    Foreground time interval of the image:
     -9.448 121.301 (delta_t = 130.749 [sec])
    Background time interval of the image:
    -11.099  -9.448 (delta_t =   1.651 [sec])
    

    Lightcurves

    Notes:

    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:

    Time averaged spectrum fit using the average DRM

    Power-law model
    Time interval is from   -9.448 sec. to  170.968 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.13343     ( -0.0773062   0.0762066 )
    Norm@50keV  : 4.62820E-03    ( -0.000203613   0.000202747 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   53.42     using 59 bins.
     Reduced chi-squared = 0.937193
    # Null hypothesis probability of 6.10e-01 with 57 degrees of freedom
     
    Photon flux (15-150 keV)    in 180.4 sec: 0.538714 ( -0.025409  0.025509 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 8.63946e-06 ( -3.70206e-07  3.70365e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   -9.448 sec. to  170.968 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.03274     ( -0.316164   0.133686 )
    Epeak [keV] : 585.119      ( -586.314 -586.314 )
    Norm@50keV  : 5.10088E-03    ( -0.000605712   0.00175694 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   53.10     using 59 bins.
     Reduced chi-squared = 0.948214
    # Null hypothesis probability of 5.86e-01 with 56 degrees of freedom
     
    Photon flux (15-150 keV)    in 180.4 sec: 0.535756 ( -0.026789  0.026824 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 8.61284e-06 ( -3.79866e-07  3.75441e-07 ) ergs/cm2
     
    
    Band function
    Time interval is from   -9.448 sec. to  170.968 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]    : 22.2838  (  )
    R^2/D10^2   : 1.76301E-02  (   )
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                  152.41     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 1.23e-10 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.906e-07   2.661e-08
    25- 50  1.548e-06   1.000e-07
    50-150  5.744e-06   3.301e-07
    15-150  7.583e-06   3.464e-07
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 199.363       (      )
    Norm        : 2.35452       (     )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                  150.85     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 2.04e-10 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.058e-06   5.123e-08
    25- 50  2.035e-06   9.020e-08
    50-150  4.462e-06   2.300e-07
    15-150  7.554e-06   3.617e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 10.3276        (-1.94473      2.10261)
    R1^2/D10^2  : 0.130279        (-0.0516424      0.109581)
    kT2 [keV]   : 42.5129        (-8.9301      21.0546)
    R2^2/D10^2  : 1.87776E-03    (-0.00125407   0.00211693)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   57.72     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 3.75e-01 with 55 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.913e-07   1.070e-07
    25- 50  1.866e-06   2.742e-07
    50-150  6.160e-06   1.603e-06
    15-150  8.617e-06   1.991e-06
    

    Peak spectrum fit

    Power-law model
    Time interval is from   70.524 sec. to   71.524 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.763834     ( -0.360923   0.317443 )
    Norm@50keV  : 1.58297E-02    ( -0.00343821   0.00325134 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   53.22     using 59 bins.
     Reduced chi-squared = 0.933684
    # Null hypothesis probability of 6.18e-01 with 57 degrees of freedom
     
    Photon flux (15-150 keV)    in 1 sec: 1.82217 ( -0.36144  0.36844 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.87875e-07 ( -3.19197e-08  3.19059e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   70.524 sec. to   71.524 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.755175     ( -1.14402   0.65528 )
    Epeak [keV] : 10000.00      ( -10000 -10000 )
    Norm@50keV  : 1.59436E-02    ( -0.00345108   -0.0159436 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   53.22     using 59 bins.
     Reduced chi-squared = 0.950357
    # Null hypothesis probability of 5.81e-01 with 56 degrees of freedom
     
    Photon flux (15-150 keV)    in 1 sec: 1.80599 ( -0.38496  0.36071 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.87655e-07 ( -3.20907e-08  3.19893e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   70.524 sec. to   71.524 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]    : 30.3868  (-6.29321  10.4985)
    R^2/D10^2   : 2.63248E-02  (-0.0151447   0.0277771)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   55.73     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 5.23e-01 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.773e-09   1.647e-09
    25- 50  2.339e-08   8.876e-09
    50-150  1.518e-07   5.151e-08
    15-150  1.790e-07   6.304e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 200.000       (-35.4829      -200)
    Norm        : 8.07175       (-1.52361     1.52361)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   71.91     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 8.82e-02 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.012e-08   1.196e-08
    25- 50  3.871e-08   2.264e-08
    50-150  8.490e-08   4.929e-08
    15-150  1.437e-07   8.255e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 4.96827        (-2.78947      9.16388)
    R1^2/D10^2  : 4.23607        (-4.1213      271.086)
    kT2 [keV]   : 35.0379        (-8.6336      20.3241)
    R2^2/D10^2  : 1.66430E-02    (-0.0119433   0.0200848)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   51.66     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 6.03e-01 with 55 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.293e-08   8.121e-09
    25- 50  2.536e-08   1.292e-08
    50-150  1.521e-07   8.413e-08
    15-150  1.904e-07   9.287e-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: 1.09191     ( -0.10486   0.102528 )
    Norm@50keV  : 4.17556E-03    ( -0.000253945   0.000252041 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   49.67     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 7.44e-01 with 57 degrees of freedom
     
    Photon flux (15-150 keV)    in 130.7 sec: 0.483963 ( -0.0311991  0.0313788 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.72073e-06 ( -3.29978e-07  3.30133e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.949192     ( -0.437754   0.188506 )
    Epeak [keV] : 456.104      ( -456.113 -456.113 )
    Norm@50keV  : 4.78175E-03    ( -0.000774506   0.00235705 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   49.32     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 7.24e-01 with 56 degrees of freedom
     
    Photon flux (15-150 keV)    in 130.7 sec: 0.480326 ( -0.032712  0.032623 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.70355e-06 ( -3.3701e-07  3.35781e-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)  = 1.74e-06
    S(50-100 keV) = 3.18e-06
    

    T90 vs. Hardness ratio plot

    T90                                   = 143.664000034332 sec.
    Hardness ratio (energy fluence ratio) = 1.82759
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.82376
    Count Ratio (50-100 keV) / (15-25 keV) = 1.89909
    

    Mask shadow pattern

    IMX = 1.160703420316407E+00, IMY = -7.765187250656860E-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:
    -11.099410 -9.448000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    239.6778  68.7333    2.0  29.4   87.5   0.1202   5.7 ------	UNKNOWN                       
    119.8248  30.0539    2.8  47.9  -51.2   0.2726   4.2 ------	UNKNOWN                       
    148.4250  21.7630    2.6  40.9  -88.9   0.2246   4.4 ------	UNKNOWN                       
    

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

    Time interval of the image:
    -9.448000 121.300600
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    177.6206  69.8889    2.4  13.5   46.2   5.1837   4.8 ------	UNKNOWN                       
     76.7173  58.2596    1.5  49.3    3.8  17.0140   7.5 ------	UNKNOWN                       
     84.1320  42.3141    3.1  57.8  -14.0  17.3356   3.7 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    190.700600 697.400620
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.6323  22.0170    0.4  36.5  -27.2  20.5930  32.8    0.2	Crab                          
     44.1117  48.7028    2.6  21.3   61.4   2.2407   4.5 ------	UNKNOWN                       
    218.9646  76.6809    3.8  43.0  175.5   2.6408   3.1 ------	UNKNOWN                       
     62.1238   9.8364    3.0  49.6    2.6   3.5704   3.8 ------	UNKNOWN                       
     76.5556  58.2646    2.0   0.1  106.1   2.4386   5.7 ------	UNKNOWN                       
    
    Plot creation:
    Sat Jul 30 06:51:25 EDT 2022