batgrbproduct analysis for trigger=1253910

batgrbproduct Analysis for Trigger=1253910

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Sat Oct 19 14:44:41 EDT 2024
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1253910
======================================================================

  Trigger: 01253910      Segment: 000

  BAT Trigger Time: 747798433.344   [s; MET]
      Trigger Stop: 747798433.856   [s; MET]
               UTC: 2024-09-12T01:46:39.185300    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 124.63322615577   Dec: 33.9949552639727  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.78
     Image Trigger?:     NO
     Rate S/N Ratio:     13  [ if not an image trigger ]
     Image S/N Ratio:    7.78

  Flight Position:   [ source = BAT ]
    RA: 124.63322615577   Dec: 33.9949552639727  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 124.622721747922   Dec: 33.9949849621564  [deg; J2000]  
        { 08h 18m 29.5s , +33d 59' 41.9" }
         +/- 1.04079011498913 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.36010956312302 [arcmin] (formal 1-sigma fit error)
    SNR: 28.7285606334815
 
  Angular difference between Flight and Ground position is 0.522547 arcmin
 
  Partial Coding Fraction: 0.8671875    [ including projection effects ]

  Duration
     T90: 114.931999921799 +/- 8.08011290348459
        Measured from: 20.6000000238419
                   to: 135.531999945641     [s; relative to TRIGTIME]
     T50: 25.2079999446869 +/- 0.475394495726533
        Measured from: 62.1160000562668
                   to: 87.3240000009537     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 76.0520000457764     
                   to: 77.0520000457764     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -3.64800000190735     
                   to: 373.027999997139     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total    17.062591  21.642468  15.397990   3.356233
           0.128313   0.135199   0.115625   0.086841 [error]
 Peak      0.510251   0.717492   0.528835   0.132137
           0.012611   0.014688   0.013176   0.008178 [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 5.20e-06 8.85e-06 1.15e-05 3.01e-05 3.38e-05 5.58e-05   erg/cm2
              Error 1.60e-07 1.60e-07 1.63e-07 1.01e-06 4.46e-07 1.04e-06   erg/cm2
Peak flux Power-law 4.91e+00 4.95e+00 3.51e+00 3.95e+00 1.49e+01 1.73e+01   ph/cm2/s
              Error 2.53e-01 1.51e-01 1.11e-01 2.67e-01 4.24e-01 4.54e-01   ph/cm2/s
 
Fluence   Cutoff-PL 4.90e-06 8.85e-06 1.17e-05 2.51e-05 3.34e-05 5.05e-05   erg/cm2
              Error 2.29e-07 1.62e-07 2.06e-07 2.74e-06 4.83e-07 2.79e-06   erg/cm2
Peak flux Cutoff-PL 4.59e+00 5.02e+00 3.60e+00 3.00e+00 1.47e+01 1.62e+01   ph/cm2/s
              Error 3.27e-01 1.63e-01 1.30e-01 5.85e-01 4.59e-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    1.625    0.026    -      -           9.60e-03 1.32e-04   36.540 57
CPL   1.450    0.107     194.0  120.9      1.13e-02 1.11e-03   28.630 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.497    0.048    -      -           1.20e-01 3.14e-03   54.320 57
CPL   1.224    0.198     154.4  132.2      1.60e-01 3.35e-02   48.410 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: 96.896000 sec.
T50 in the 50-300 keV band: 18.688000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  376.676   -3.648  373.028
T90   114.932   20.600  135.532
T50    25.208   62.116   87.324
Peak    1.000   76.052   77.052
  • 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
      124.6227    33.9950   0.0067    29.0863  -165.3448         1.4673395     28.729 TRIG_01253910                 
     
    Foreground time interval of the image:
     -3.648  10.157 (delta_t =  13.805 [sec])
    Background time interval of the image:
    -156.443  -3.648 (delta_t = 152.795 [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
    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 0.512000
    

    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 0.512000
    

    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 0.512000
    

    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   -3.648 sec. to  373.028 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.62451     ( -0.0255764   0.0255143 )
    Norm@50keV  : 9.60437E-03    ( -0.000131926   0.000131782 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   36.54     using 59 bins.
     Reduced chi-squared = 0.641053
    # Null hypothesis probability of 9.84e-01 with 57 degrees of freedom
     
    Photon flux (15-150 keV)    in 376.7 sec: 1.24380 ( -0.02216  0.02227 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.37439e-05 ( -4.45346e-07  4.45806e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   -3.648 sec. to  373.028 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.45014     ( -0.108286   0.105988 )
    Epeak [keV] : 193.985      ( -50.5613 191.316 )
    Norm@50keV  : 1.13027E-02    ( -0.00104296   0.00117146 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   28.63     using 59 bins.
     Reduced chi-squared = 0.51125
    # Null hypothesis probability of 9.99e-01 with 56 degrees of freedom
     
    Photon flux (15-150 keV)    in 376.7 sec: 1.21947 ( -0.02603  0.02626 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.34261e-05 ( -4.82911e-07  4.82952e-07 ) ergs/cm2
     
    
    Band function
    Time interval is from   -3.648 sec. to  373.028 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]    : 18.6186  (  )
    R^2/D10^2   : 5.95582E-02  (   )
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                 1192.99     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 3.44e-212 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.540e-06   4.577e-08
    25- 50  7.300e-06   1.488e-07
    50-150  1.852e-05   3.447e-07
    15-150  2.736e-05   3.710e-07
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 200.000       (-8.37977      -200)
    Norm        : 4.92907       (-0.0648662     0.0648662)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   37.31     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 9.80e-01 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.626e-06   8.099e-08
    25- 50  8.899e-06   1.526e-07
    50-150  1.952e-05   3.371e-07
    15-150  3.304e-05   5.387e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 7.96638        (-0.423727      0.443509)
    R1^2/D10^2  : 0.812963        (-0.142042      0.180011)
    kT2 [keV]   : 28.9949        (-1.32776      1.53173)
    R2^2/D10^2  : 9.78773E-03    (-0.00171848   0.00191428)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   57.97     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 3.66e-01 with 55 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.999e-06   2.143e-07
    25- 50  9.098e-06   2.147e-07
    50-150  1.968e-05   4.313e-07
    15-150  3.278e-05   6.310e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from   76.052 sec. to   77.052 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.49701     ( -0.0481667   0.0482754 )
    Norm@50keV  : 0.119582    ( -0.00314338   0.00314291 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   54.32     using 59 bins.
     Reduced chi-squared = 0.952982
    # Null hypothesis probability of 5.76e-01 with 57 degrees of freedom
     
    Photon flux (15-150 keV)    in 1 sec: 14.9170 ( -0.4235  0.4243 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.13512e-06 ( -3.1753e-08  3.1824e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   76.052 sec. to   77.052 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.22362     ( -0.20228   0.193412 )
    Epeak [keV] : 154.422      ( -43.3565 221.113 )
    Norm@50keV  : 0.160274    ( -0.0293128   0.0377613 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   48.41     using 59 bins.
     Reduced chi-squared = 0.864464
    # Null hypothesis probability of 7.54e-01 with 56 degrees of freedom
     
    Photon flux (15-150 keV)    in 1 sec: 14.6529 ( -0.4584  0.4598 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 7.13724e-07 ( -3.84034e-08  3.19002e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   76.052 sec. to   77.052 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]    : 16.2356  (  )
    R^2/D10^2   : 1.25961  (   )
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                  327.87     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 1.07e-39 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  6.842e-08   3.515e-09
    25- 50  2.915e-07   1.030e-08
    50-150  5.400e-07   2.585e-08
    15-150  9.000e-07   2.930e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 200.000       (-8.71572      -200)
    Norm        : 61.2520       (-1.60609     1.60609)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   56.59     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 4.91e-01 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.525e-07   4.550e-09
    25- 50  2.934e-07   8.600e-09
    50-150  6.435e-07   1.865e-08
    15-150  1.089e-06   3.200e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 8.47189        (-0.93713      0.981247)
    R1^2/D10^2  : 7.89478        (-2.19783      3.50393)
    kT2 [keV]   : 30.8557        (-3.86847      5.74152)
    R2^2/D10^2  : 0.102527    (-0.0454592   0.0647255)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   59.34     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 3.20e-01 with 55 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.216e-07   1.045e-08
    25- 50  2.992e-07   1.665e-08
    50-150  6.874e-07   7.155e-08
    15-150  1.108e-06   7.495e-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: 1.31588     ( -0.090296   0.0897547 )
    Norm@50keV  : 7.15662E-03    ( -0.000378039   0.000378039 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   57.33     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 4.63e-01 with 57 degrees of freedom
     
    Photon flux (15-150 keV)    in 13.8 sec: 0.856347 ( -0.0474667  0.0475518 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 9.72218e-07 ( -5.53914e-08  5.55508e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.715204     ( -0.430421   0.389487 )
    Epeak [keV] : 113.536      ( -27.1279 106.044 )
    Norm@50keV  : 1.38990E-02    ( -0.00476966   0.00819017 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   50.09     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 6.97e-01 with 56 degrees of freedom
     
    Photon flux (15-150 keV)    in 13.8 sec: 0.834477 ( -0.049533  0.049544 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 9.37902e-07 ( -6.11588e-08  6.068e-08 ) 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)  = 8.85e-06
    S(50-100 keV) = 1.15e-05
    

    T90 vs. Hardness ratio plot

    T90                                   = 114.931999921799 sec.
    Hardness ratio (energy fluence ratio) = 1.29944
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.26842
    Count Ratio (50-100 keV) / (15-25 keV) = 0.902441
    

    Mask shadow pattern

    IMX = -5.381822438423821E-01, IMY = 1.407399230798909E-01
    

    TIME vs. PHA plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 0.512000
    

    TIME vs. DetID plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 0.512000
    

    100 us light curve (15-350 keV)

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 0.512000
    

    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:
    -156.443400 -3.648000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.6361  22.0239    1.4  39.9  127.2   6.0964   8.5    0.6	Crab                          
    135.4504 -40.5079    5.5  47.5   -6.3   0.8386   2.1    4.5	Vela X-1                      
     89.4123  -3.7321    2.5  32.8   83.5   2.1224   4.7 ------	UNKNOWN                       
    129.0911 -38.8238    2.6  44.6   -0.4   1.6968   4.5 ------	UNKNOWN                       
    

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

    Time interval of the image:
    -3.648000 10.156600
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.5955  21.8556   14.9  39.9  127.0   0.1000   0.8    9.8	Crab                          
    135.4464 -40.5222    3.5  47.5   -6.3   0.2931   3.3    4.2	Vela X-1                      
     99.8233  50.8858    2.1  49.1  171.0   0.6639   5.5 ------	UNKNOWN                       
    127.5182   2.9374    2.6   6.8  -63.2   0.2003   4.5 ------	UNKNOWN                       
    124.6227  33.9950    0.4  29.1 -165.3   1.4675  28.7 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    93.356590 962.717100
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.6423  21.9963    1.2  37.9   58.0  30.4852   9.3    1.2	Crab                          
     95.2701  60.7696    2.8  32.8  129.3   8.1617   4.1 ------	UNKNOWN                       
     98.3355  20.4023    3.2  26.9   42.1   5.0300   3.6 ------	UNKNOWN                       
    124.6507  33.9904    1.3   0.0 -157.0  11.1924   9.0 ------	UNKNOWN                       
    181.5906  36.0673    2.7  46.0 -134.1  12.5323   4.3 ------	UNKNOWN                       
    
    Plot creation:
    Sat Oct 19 18:14:55 EDT 2024