batgrbproduct analysis for trigger=1061554

batgrbproduct Analysis for Trigger=1061554

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Fri Jul 29 22:42:53 EDT 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1061554
======================================================================

  Trigger: 01061554      Segment: 000

  BAT Trigger Time: 648907275.456   [s; MET]
      Trigger Stop: 648907278.528   [s; MET]
               UTC: 2021-07-25T12:00:48.024580    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 192.932182299759   Dec: 17.1251868322912  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.81
     Image Trigger?:     NO
     Rate S/N Ratio:     11  [ if not an image trigger ]
     Image S/N Ratio:    7.81

  Flight Position:   [ source = BAT ]
    RA: 192.932182299759   Dec: 17.1251868322912  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 192.890888455284   Dec: 17.1017936462215  [deg; J2000]  
        { 12h 51m 33.8s , +17d 06' 06.5" }
         +/- 3.25037354393711 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.52588488265531 [arcmin] (formal 1-sigma fit error)
    SNR: 5.64657538750426
 
  Angular difference between Flight and Ground position is 2.752665 arcmin
 
  Partial Coding Fraction: 0.984375    [ including projection effects ]

  Duration
     T90: 417.907999873161 +/- 158.76587538321
        Measured from: 0.820000052452087
                   to: 418.727999925613     [s; relative to TRIGTIME]
     T50: 290.359999895096 +/- 274.904362450144
        Measured from: 5.74800002574921
                   to: 296.107999920845     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.972000002861023     
                   to: 1.97200000286102     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.096000075340271     
                   to: 432.399999976158     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.283942   0.531999   0.493366   0.008465
           0.141367   0.146733   0.130113   0.120038 [error]
 Peak      0.018472   0.026418   0.026145   0.020536
           0.006884   0.007501   0.006963   0.006392 [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 1.05e-07 2.03e-07 3.06e-07 9.99e-07 8.60e-07 1.61e-06   erg/cm2
              Error 4.90e-08 6.21e-08 1.20e-07 8.41e-07 2.96e-07 9.40e-07   erg/cm2
Peak flux Power-law 1.44e-01 1.78e-01 1.60e-01 2.50e-01 5.68e-01 7.32e-01   ph/cm2/s
              Error 7.76e-02 5.88e-02 5.40e-02 1.91e-01 1.62e-01 2.32e-01   ph/cm2/s
 
Fluence   Cutoff-PL 8.43e-08 2.31e-07 3.27e-07 2.20e-07 7.87e-07 8.65e-07   erg/cm2
              Error 5.87e-08 8.00e-08 1.44e-07 7.20e-07 3.02e-07 7.47e-07   erg/cm2
Peak flux Cutoff-PL 1.49e-01 1.76e-01 1.59e-01 2.54e-01 5.71e-01 7.34e-01   ph/cm2/s
              Error 7.49e-02 6.67e-02 5.50e-02 -------- 1.69e-01 2.48e-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    1.409    0.502    -      -           2.06e-04 6.34e-05   39.750 57
CPL   0.108    2.514      72.2  -21.8      9.37e-04 1.76e-02   38.530 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.152    0.530    -      -           4.87e-03 1.37e-03   70.800 57
CPL   1.153    0.533    9999.4    0.0      4.89e-03 2.76e-02   70.810 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: 4.288000 sec.
T50 in the 50-300 keV band: 1.664000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  432.304    0.096  432.400
T90   417.908    0.820  418.728
T50   290.360    5.748  296.108
Peak    1.000    0.972    1.972
  • 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
      192.8909    17.1018   0.0342    11.4447   147.5529         0.5221035      5.647 TRIG_01061554                 
     
    Foreground time interval of the image:
      0.096  43.845 (delta_t =  43.749 [sec])
    Background time interval of the image:
    -239.456   0.096 (delta_t = 239.552 [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    0.096 sec. to  432.400 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.40945     ( -0.494452   0.5105 )
    Norm@50keV  : 2.06194E-04    ( -6.39373e-05   6.29256e-05 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   39.75     using 59 bins.
     Reduced chi-squared = 0.697368
    # Null hypothesis probability of 9.60e-01 with 57 degrees of freedom
     
    Photon flux (15-150 keV)    in 432.3 sec: 2.51652E-02 ( -0.0074806  0.0074901 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 8.59814e-07 ( -2.89657e-07  3.01675e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    0.096 sec. to  432.400 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.108394     ( -3.35037   1.67681 )
    Epeak [keV] : 72.1678      ( -28.395 -72.0194 )
    Norm@50keV  : 9.37186E-04    ( -0.000946202   0.0341804 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   38.53     using 59 bins.
     Reduced chi-squared = 0.688036
    # Null hypothesis probability of 9.64e-01 with 56 degrees of freedom
     
    Photon flux (15-150 keV)    in 432.3 sec: 2.39578E-02 ( -0.0077259  0.0077241 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 7.85174e-07 ( -2.84188e-07  3.20496e-07 ) ergs/cm2
     
    
    Band function
    Time interval is from    0.096 sec. to  432.400 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]    : 15.7996  (-4.5519  6.70327)
    R^2/D10^2   : 2.54150E-03  (-0.00254102   0.00560106)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   39.33     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 9.64e-01 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.686e-08   3.614e-08
    25- 50  2.367e-07   1.445e-07
    50-150  4.110e-07   2.624e-07
    15-150  7.045e-07   4.120e-07
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 199.363       (-199.363      -199.363)
    Norm        : 0.103693       (-0.0305459     0.030546)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   39.46     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 9.63e-01 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.116e-07   7.042e-08
    25- 50  2.147e-07   1.284e-07
    50-150  4.709e-07   2.821e-07
    15-150  7.972e-07   4.816e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 5.25950        (-5.25996      -5.25996)
    R1^2/D10^2  : 4.26361E-02        (-0.042594      -0.042594)
    kT2 [keV]   : 18.9641        (-18.9556      -18.9556)
    R2^2/D10^2  : 1.20886E-03    (-0.00121093   0.00484608)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   38.16     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 9.59e-01 with 55 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  9.162e-08   5.851e-08
    25- 50  2.179e-07   1.220e-07
    50-150  4.712e-07   2.784e-07
    15-150  7.808e-07   4.381e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from    0.972 sec. to    1.972 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.15198     ( -0.552363   0.508623 )
    Norm@50keV  : 4.87006E-03    ( -0.00137411   0.00137411 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   70.80     using 59 bins.
     Reduced chi-squared = 1.24211
    # Null hypothesis probability of 1.03e-01 with 57 degrees of freedom
     
    Photon flux (15-150 keV)    in 1 sec: 0.568083 ( -0.162269  0.162631 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.01095e-08 ( -1.60452e-08  1.65666e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    0.972 sec. to    1.972 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.15271     ( -0.559875   0.507101 )
    Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
    Norm@50keV  : 4.89331E-03    ( -0.00138378   0.0539122 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   70.81     using 59 bins.
     Reduced chi-squared = 1.26446
    # Null hypothesis probability of 8.79e-02 with 56 degrees of freedom
     
    Photon flux (15-150 keV)    in 1 sec: 0.570808 ( -0.17269  0.165905 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.05068e-08 ( -1.93086e-08  1.15615e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from    0.972 sec. to    1.972 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]    : 15.1959  (-5.0902  10.7036)
    R^2/D10^2   : 6.30800E-02  (-0.0627591   0.189477)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   74.48     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 5.99e-02 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.043e-09   1.922e-09
    25- 50  1.224e-08   7.375e-09
    50-150  1.934e-08   1.236e-08
    15-150  3.462e-08   2.241e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 199.358       (-108.973      -199.362)
    Norm        : 2.30067       (-0.664709     0.666037)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   72.47     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 8.13e-02 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.729e-09   3.585e-09
    25- 50  1.102e-08   6.820e-09
    50-150  2.417e-08   1.461e-08
    15-150  4.092e-08   2.573e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 9.87121        (-3.33517      4.27069)
    R1^2/D10^2  : 0.221183        (-0.173669      0.740957)
    kT2 [keV]   : 199.363        (-199.363      -199.363)
    R2^2/D10^2  : 1.15380E-04    (-6.28158e-05   0.00508775)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   68.18     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 1.09e-01 with 55 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.517e-09   2.858e-09
    25- 50  1.192e-08   7.100e-09
    50-150  3.591e-08   8.800e-09
    15-150  5.235e-08   1.780e-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: 1.42695     ( -0.446748   0.454203 )
    Norm@50keV  : 7.69790E-04    ( -0.000206286   0.000201739 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   54.27     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 5.78e-01 with 57 degrees of freedom
     
    Photon flux (15-150 keV)    in 43.75 sec: 9.43357E-02 ( -0.0237874  0.0238022 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.23683e-07 ( -9.50622e-08  9.90329e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.12922     ( -1.96049   1.39035 )
    Epeak [keV] : 137.595      ( -137.569 -137.569 )
    Norm@50keV  : 1.11119E-03    ( -0.000542357   0.0116157 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   54.16     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 5.45e-01 with 56 degrees of freedom
     
    Photon flux (15-150 keV)    in 43.75 sec: 9.32179E-02 ( -0.0244014  0.0243781 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.13882e-07 ( -1.06509e-07  1.06424e-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)  = 2.03e-07
    S(50-100 keV) = 3.06e-07
    

    T90 vs. Hardness ratio plot

    T90                                   = 417.907999873161 sec.
    Hardness ratio (energy fluence ratio) = 1.50739
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.87362
    Count Ratio (50-100 keV) / (15-25 keV) = 1.73756
    

    Mask shadow pattern

    IMX = -1.708432704522193E-01, IMY = -1.086174351391151E-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:
    -239.456000 0.096000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    196.5383  12.0661    3.1  17.4  141.3   1.0914   3.7 ------	UNKNOWN                       
    219.7894  79.2356    3.0  53.0   -6.1   2.4517   3.8 ------	UNKNOWN                       
    160.6724 -22.2244    2.8  57.1 -161.5   5.1144   4.1 ------	UNKNOWN                       
    160.1492 -15.9393    3.2  52.0 -157.0   2.7559   3.7 ------	UNKNOWN                       
    

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

    Time interval of the image:
    0.096000 43.844590
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    163.1471 -11.1695    2.4  46.4 -156.9   0.8467   4.8 ------	UNKNOWN                       
    132.3664  75.1915    2.2  54.7  -28.1   2.2181   5.2 ------	UNKNOWN                       
    140.4065  38.0238    2.6  41.4  -76.1   1.5535   4.5 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    74.844590 437.844600
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    229.6090  41.8736    4.5  39.9   30.3   1.6461   2.6 ------	UNKNOWN                       
    229.9444  46.2706    2.4  42.2   24.6   3.4019   4.9 ------	UNKNOWN                       
    
    Plot creation:
    Sat Jul 30 06:53:34 EDT 2022