batgrbproduct Analysis for Trigger=145994

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu Sep 11 19:45:38 EDT 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger145994
======================================================================

  Trigger: 00145994      Segment: 000

  BAT Trigger Time: 143073632   [s; MET]
      Trigger Stop: 143073696   [s; MET]
               UTC: 2005-07-14T22:40:32.377900    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 169.69397915696   Dec: -15.5277825312379  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.07
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    10.07

  Flight Position:   [ source = BAT ]
    RA: 169.69397915696   Dec: -15.5277825312379  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 169.685757439453   Dec: -15.5446774461554  [deg; J2000]  
        { 11h 18m 44.6s , -15d 32' 40.8" }
         +/- 2.45400806630531 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.09681943183775 [arcmin] (formal 1-sigma fit error)
    SNR: 8.43631302857758
 
  Angular difference between Flight and Ground position is 1.119583 arcmin
 
  Partial Coding Fraction: 0.3945312    [ including projection effects ]

  Duration
     T90: 49.363999992609 +/- 11.2912489990715
        Measured from: 17.7080000042915
                   to: 67.0719999969006     [s; relative to TRIGTIME]
     T50: 24.5600000023842 +/- 8.26910682771996
        Measured from: 29.2759999930859
                   to: 53.83599999547     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 55.1680000126362     
                   to: 56.1680000126362     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 13.4920000135899     
                   to: 68.2479999959469     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.495592   0.527384   0.104254   0.076400
           0.059257   0.061745   0.054307   0.048546 [error]
 Peak      0.017635   0.028582   0.011863   0.005873
           0.007865   0.008419   0.007342   0.006494 [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 1.93e-07 2.06e-07 1.57e-07 1.94e-07 6.30e-07 7.50e-07   erg/cm2
              Error 3.38e-08 3.21e-08 4.50e-08 1.03e-07 1.09e-07 1.70e-07   erg/cm2
Peak flux Power-law 2.47e-01 1.84e-01 9.14e-02 6.46e-02 5.53e-01 5.87e-01   ph/cm2/s
              Error 1.37e-01 7.33e-02 5.95e-02 9.11e-02 2.20e-01 2.35e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.73e-07 2.62e-07 1.08e-07 7.06e-09 5.50e-07 5.51e-07   erg/cm2
              Error 3.87e-08 4.66e-08 5.77e-08 2.31e-08 9.72e-08 9.91e-08   erg/cm2
Peak flux Cutoff-PL 2.44e-01 1.87e-01 9.15e-02 5.30e-02 5.51e-01 5.76e-01   ph/cm2/s
              Error 1.44e-01 8.63e-02 7.83e-02 9.04e-02 2.20e-01 2.44e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 2.43e-01 1.88e-01 9.16e-02 5.00e-02 5.50e-01 5.73e-01   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    2.396    0.276    -      -           1.18e-03 2.53e-04   59.860 57
CPL  -0.027    1.751      30.2    6.1      3.91e-02 4.03e-01   50.750 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.012    0.812    -      -           3.67e-03 2.73e-03   57.330 57
CPL   1.870    1.051      38.8    0.0      4.42e-03 0.00e+00   57.310 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   54.756   13.492   68.248
T90    49.364   17.708   67.072
T50    24.560   29.276   53.836
Peak    1.000   55.168   56.168
  • Click here for the BAT GCN circular template
  • Special notes of this burst

    Image

    Pre-slew 15.0-350.0 keV image (Event data)

    #   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
      169.6858   -15.5447   0.0226    46.3730  -171.4621         1.0907411      8.436 TRIG_00145994                 
     
    Foreground time interval of the image:
     13.492  68.248 (delta_t =  54.756 [sec])
    Background time interval of the image:
    -159.299 -83.000 (delta_t =  76.300 [sec])
    -82.000  13.492 (delta_t =  95.492 [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 64.000000
    

    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 64.000000
    

    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 64.000000
    

    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   13.492 sec. to   68.248 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.39618     ( -0.261876   0.290435 )
    Norm@50keV  : 1.18008E-03    ( -0.000253678   0.000251516 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.86 using 59 PHA bins.
    # Reduced chi-squared =          1.050 for     57 degrees of freedom 
    # Null hypothesis probability =   3.722271e-01
     
    Photon flux (15-150 keV)    in 54.76 sec: 0.217856 ( -0.0311277  0.0311277 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 6.29756e-07 ( -1.07095e-07  1.11098e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   13.492 sec. to   68.248 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: -2.72899E-02     ( -2.01284   1.48911 )
    Epeak [keV] : 30.1552      ( -6.10122 6.13116 )
    Norm@50keV  : 3.91151E-02    ( -0.0402669   0.76658 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          50.75 using 59 PHA bins.
    # Reduced chi-squared =         0.9063 for     56 degrees of freedom 
    # Null hypothesis probability =   6.732335e-01
     
    Photon flux (15-150 keV)    in 54.76 sec: 0.208863 ( -0.030757  0.030934 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.50272e-07 ( -9.18123e-08  1.02494e-07 ) ergs/cm2
     
    
    Band function
    Time interval is from   13.492 sec. to   68.248 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -5.82674E-02   ( -1.38805   2.12286 )
    beta        : -9.37167    ( 9.37167   19.3705 )
    Epeak [keV] : 30.2831      ( -5.47734 6.04733 )
    Norm@50keV   : 3.39434E-02    ( -0.0339729   6.9897 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          50.77 using 59 PHA bins.
    # Reduced chi-squared =         0.9231 for     55 degrees of freedom 
    # Null hypothesis probability =   6.369030e-01
     
    Photon flux (15-150 keV)    in 54.76 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]    : 8.12895  (-1.11525  1.25491)
    R^2/D10^2   : 0.235353  (-0.104144   0.19336)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          52.62 using 59 PHA bins.
    # Reduced chi-squared =         0.9231 for     57 degrees of freedom 
    # Null hypothesis probability =   6.400416e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.558e-07   3.863e-08
    25- 50  2.803e-07   5.399e-08
    50-150  7.756e-08   3.188e-08
    15-150  5.137e-07   9.709e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 35.5534       (-9.45311      14.2251)
    Norm        : 1.56697       (-0.369703     0.503835)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          53.03 using 59 PHA bins.
    # Reduced chi-squared =         0.9303 for     57 degrees of freedom 
    # Null hypothesis probability =   6.248813e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.887e-07   3.376e-08
    25- 50  2.353e-07   4.712e-08
    50-150  1.592e-07   7.319e-08
    15-150  5.831e-07   1.246e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 4.38649        (-4.37823      41.5297)
    R1^2/D10^2  : 1.14003        (-1.14372      -1.14372)
    kT2 [keV]   : 10.0037        (-10.0001      -10.0001)
    R2^2/D10^2  : 7.89141E-02    (-0.0791024   0.223345)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          50.39 using 59 PHA bins.
    # Reduced chi-squared =         0.9162 for     55 degrees of freedom 
    # Null hypothesis probability =   6.511402e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.753e-07   9.397e-08
    25- 50  2.598e-07   1.397e-07
    50-150  1.153e-07   7.335e-08
    15-150  5.504e-07   2.806e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from   55.168 sec. to   56.168 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.01151     ( -0.720297   0.904169 )
    Norm@50keV  : 3.66710E-03    ( -0.0036671   0.00178842 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          57.33 using 59 PHA bins.
    # Reduced chi-squared =          1.006 for     57 degrees of freedom 
    # Null hypothesis probability =   4.629935e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.552998 ( -0.219589  0.219697 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.38389e-08 ( -1.55874e-08  1.6667e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   55.168 sec. to   56.168 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.87009     ( -1.885   0.217032 )
    Epeak [keV] : 38.8236      (   )
    Norm@50keV  : 4.42248E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          57.31 using 59 PHA bins.
    # Reduced chi-squared =          1.023 for     56 degrees of freedom 
    # Null hypothesis probability =   4.261630e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.551054 ( -0.219184  0.22096 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.3456e-08 ( -3.3456e-08  1.69822e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   55.168 sec. to   56.168 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 3.96348   ( -5.8265   -3.98557 )
    beta        : -2.12951    ( 2.3997   1.07509 )
    Epeak [keV] : 21.2211      ( -21.0239 115.065 )
    Norm@50keV   : 258.607    ( -286.166   640.663 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          57.05 using 59 PHA bins.
    # Reduced chi-squared =          1.037 for     55 degrees of freedom 
    # Null hypothesis probability =   3.989399e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.550343 (    ) 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]    : 7.34888  (-2.59362  7.08793)
    R^2/D10^2   : 0.841480  (-0.841401   4.24994)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.00 using 59 PHA bins.
    # Reduced chi-squared =          1.035 for     57 degrees of freedom 
    # Null hypothesis probability =   4.022108e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  7.657e-09   4.932e-09
    25- 50  1.150e-08   7.825e-09
    50-150  2.266e-09   2.165e-09
    15-150  2.143e-08   1.387e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 68.0144       (-68.0095      -68.0095)
    Norm        : 2.74664       (-1.34513     3.85129)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          57.47 using 59 PHA bins.
    # Reduced chi-squared =          1.008 for     57 degrees of freedom 
    # Null hypothesis probability =   4.576355e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  7.024e-09   4.535e-09
    25- 50  1.109e-08   7.065e-09
    50-150  1.394e-08   1.279e-08
    15-150  3.205e-08   2.279e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 5.86029        (-2.05392      3.71053)
    R1^2/D10^2  : 1.72141        (-0.862292      20.6607)
    kT2 [keV]   : 27.1497        (-27.7649      -27.7652)
    R2^2/D10^2  : 4.20512E-03    (-0.00402863   0.0167474)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          56.04 using 59 PHA bins.
    # Reduced chi-squared =          1.019 for     55 degrees of freedom 
    # Null hypothesis probability =   4.358078e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  8.102e-09   5.340e-09
    25- 50  1.022e-08   5.985e-09
    50-150  1.693e-08   1.018e-08
    15-150  3.526e-08   1.926e-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: 2.39618     ( -0.261876   0.290435 )
    Norm@50keV  : 1.18008E-03    ( -0.000253678   0.000251516 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.86 using 59 PHA bins.
    # Reduced chi-squared =          1.050 for     57 degrees of freedom 
    # Null hypothesis probability =   3.722271e-01
     
    Photon flux (15-150 keV)    in 54.76 sec: 0.217856 ( -0.0311277  0.0311277 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 6.29756e-07 ( -1.07095e-07  1.11098e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: -2.72899E-02     ( -2.01284   1.48911 )
    Epeak [keV] : 30.1552      ( -6.10122 6.13116 )
    Norm@50keV  : 3.91151E-02    ( -0.0402669   0.76658 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          50.75 using 59 PHA bins.
    # Reduced chi-squared =         0.9063 for     56 degrees of freedom 
    # Null hypothesis probability =   6.732335e-01
     
    Photon flux (15-150 keV)    in 54.76 sec: 0.208863 ( -0.030757  0.030934 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.50272e-07 ( -9.18123e-08  1.02494e-07 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -5.82674E-02   ( -1.38805   2.12286 )
    beta        : -9.37167    ( 9.37167   19.3705 )
    Epeak [keV] : 30.2831      ( -5.47734 6.04733 )
    Norm@50keV   : 3.39434E-02    ( -0.0339729   6.9897 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          50.77 using 59 PHA bins.
    # Reduced chi-squared =         0.9231 for     55 degrees of freedom 
    # Null hypothesis probability =   6.369030e-01
     
    Photon flux (15-150 keV)    in 54.76 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)  = 2.06e-07
    S(50-100 keV) = 1.57e-07
    

    T90 vs. Hardness ratio plot

    T90                                   = 49.363999992609 sec.
    Hardness ratio (energy fluence ratio) = 0.762136
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.06415
    Count Ratio (50-100 keV) / (15-25 keV) = 0.210363
    

    Mask shadow pattern

    IMX = -1.037486857582655E+00, IMY = 1.557545036574831E-01
    

    TIME vs. PHA plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 64.000000
    

    TIME vs. DetID plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 64.000000
    

    100 us light curve (15-350 keV)

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 64.000000
    

    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:
    -159.299400 -82.999600
    -82.000000 13.492000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    

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

    Time interval of the image:
    13.492000 68.248000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    216.8186  42.4002    2.8  29.0   39.9   0.3602   4.1 ------	UNKNOWN                       
    169.6857 -15.5447    1.4  46.4 -171.5   1.0906   8.4 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    137.700600 303.047800
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.3561 -40.5859   66.9  38.9 -169.9   0.0288   0.2    8.1	Vela X-1                      
    170.2992 -60.7195    5.0  45.2  146.7   0.8953   2.3    5.8	Cen X-3                       
    182.7583 -60.8693    2.9  46.3  138.4   2.0378   4.0 ------	UNKNOWN                       
    202.1198  32.1615    2.2  56.9   -0.1   4.0612   5.2 ------	UNKNOWN                       
    184.2853  35.6777    2.4  53.0  -18.1   1.7173   4.8 ------	UNKNOWN                       
    
    Plot creation:
    Sun May 31 16:34:50 EDT 2015