batgrbproduct Analysis for Trigger=130679

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Jan 22 21:56:29 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger130679
======================================================================

  Trigger: 00130679      Segment: 000

  BAT Trigger Time: 138946004.672   [s; MET]
      Trigger Stop: 138946008.768   [s; MET]
               UTC: 2005-05-28T04:06:45.128040    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 353.529041992498   Dec: 45.9437076292292  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8
     Image Trigger?:     NO
     Rate S/N Ratio:     13.3041346956501  [ if not an image trigger ]
     Image S/N Ratio:    8

  Flight Position:   [ source = BAT ]
    RA: 353.529041992498   Dec: 45.9437076292292  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 353.528902937186   Dec: 45.9583933346038  [deg; J2000]  
        { 23h 34m 06.9s , +45d 57' 30.2" }
         +/- 2.185302668337 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.760422857831697 [arcmin] (formal 1-sigma fit error)
    SNR: 9.95638803477859
 
  Angular difference between Flight and Ground position is 0.881161 arcmin
 
  Partial Coding Fraction: 0.2734375    [ including projection effects ]

  Duration
     T90: 11.2480000257492 +/- 1.72823149014381
        Measured from: -6.66400000452995
                   to: 4.58400002121925     [s; relative to TRIGTIME]
     T50: 6.65999999642372 +/- 2.50901811119854
        Measured from: -3.32799997925758
                   to: 3.33200001716614     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 3.4200000166893     
                   to: 4.4200000166893     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -8.11599999666214     
                   to: 4.9839999973774     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.262857   0.343895   0.111201   0.003653
           0.036022   0.037750   0.031888   0.028884 [error]
 Peak      0.032375   0.056285   0.036144   0.002430
           0.010235   0.011378   0.009592   0.008389 [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 1.20e-07 1.41e-07 1.20e-07 1.73e-07 4.43e-07 5.54e-07   erg/cm2
              Error 2.18e-08 1.97e-08 2.96e-08 8.17e-08 7.03e-08 1.20e-07   erg/cm2
Peak flux Power-law 4.05e-01 4.03e-01 2.81e-01 3.09e-01 1.21e+00 1.40e+00   ph/cm2/s
              Error 1.65e-01 1.04e-01 7.69e-02 1.70e-01 2.98e-01 3.25e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.05e-07 1.71e-07 1.02e-07 1.64e-08 3.93e-07 3.95e-07   erg/cm2
              Error 2.59e-08 3.02e-08 2.94e-08 4.59e-08 7.02e-08 8.30e-08   erg/cm2
Peak flux Cutoff-PL 3.51e-01 4.39e-01 3.02e-01 1.35e-01 1.18e+00 1.23e+00   ph/cm2/s
              Error 2.39e-01 1.42e-01 9.20e-02 2.37e-01 3.01e-01 3.97e-01   ph/cm2/s
 
Fluence        Band 1.04e-07 1.70e-07 1.02e-07 4.23e-08 4.03e-07 4.25e-07   erg/cm2
              Error -------- -------- -------- -------- -------- 1.09e-07   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    2.237    0.257    -      -           3.58e-03 6.53e-04   47.730 57
CPL   0.443    1.598      34.1   14.5      4.18e-02 2.41e-01   42.800 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.522    0.386    -      -           9.65e-03 2.25e-03   71.250 57
CPL   0.666    2.676      77.7  -11.6      2.64e-02 2.10e+00   70.580 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   13.100   -8.116    4.984
T90    11.248   -6.664    4.584
T50     6.660   -3.328    3.332
Peak    1.000    3.420    4.420
  • 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
      353.5289    45.9584   0.0193    50.2565  -173.8444         0.7368429      9.956 TRIG_00130679                 
     
    Foreground time interval of the image:
     -8.116   4.984 (delta_t =  13.100 [sec])
    Background time interval of the image:
    -299.672  -8.116 (delta_t = 291.556 [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 4.096000
    

    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 4.096000
    

    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 4.096000
    

    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   -8.116 sec. to    4.984 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.23705     ( -0.245086   0.268361 )
    Norm@50keV  : 3.57836E-03    ( -0.000662073   0.00064465 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          47.73 using 59 PHA bins.
    # Reduced chi-squared =         0.8373 for     57 degrees of freedom 
    # Null hypothesis probability =   8.042988e-01
     
    Photon flux (15-150 keV)    in 13.1 sec: 0.604193 ( -0.0825994  0.0826489 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 4.4317e-07 ( -6.9491e-08  7.10557e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   -8.116 sec. to    4.984 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.442971     ( -1.7848   1.41153 )
    Epeak [keV] : 34.0964      ( -20.9762 8.05435 )
    Norm@50keV  : 4.18422E-02    ( -0.0418439   0.440686 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          42.80 using 59 PHA bins.
    # Reduced chi-squared =         0.7644 for     56 degrees of freedom 
    # Null hypothesis probability =   9.026213e-01
     
    Photon flux (15-150 keV)    in 13.1 sec: 0.574347 ( -0.084993  0.085443 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.93145e-07 ( -6.53454e-08  7.51128e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   -8.116 sec. to    4.984 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -0.736242   ( -0.795584   5.26468 )
    beta        : -3.56153    ( 3.48859   1.06773 )
    Epeak [keV] : 33.4741      ( -9.29128 7.94913 )
    Norm@50keV   : 2.76910E-02    ( -0.0225216   3.81957 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          42.64 using 59 PHA bins.
    # Reduced chi-squared =         0.7753 for     55 degrees of freedom 
    # Null hypothesis probability =   8.879064e-01
     
    Photon flux (15-150 keV)    in 13.1 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 4.02745e-07 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 9.36291  (-1.21899  1.34143)
    R^2/D10^2   : 0.369401  (-0.153347   0.27175)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          46.12 using 59 PHA bins.
    # Reduced chi-squared =         0.8092 for     57 degrees of freedom 
    # Null hypothesis probability =   8.480716e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  8.419e-08   2.143e-08
    25- 50  1.901e-07   3.760e-08
    50-150  8.175e-08   2.929e-08
    15-150  3.561e-07   5.744e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 45.5370       (-12.6358      20.2806)
    Norm        : 3.65061       (-0.781323     1.05693)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          43.77 using 59 PHA bins.
    # Reduced chi-squared =         0.7680 for     57 degrees of freedom 
    # Null hypothesis probability =   9.008117e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.142e-07   2.015e-08
    25- 50  1.585e-07   2.608e-08
    50-150  1.405e-07   5.496e-08
    15-150  4.131e-07   7.434e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 3.59902        (-2.34366      6.80898)
    R1^2/D10^2  : 7.55611        (-6.89312      12582.9)
    kT2 [keV]   : 11.0074        (-1.93288      3.52468)
    R2^2/D10^2  : 0.166400    (-0.127881   0.146102)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          41.49 using 59 PHA bins.
    # Reduced chi-squared =         0.7544 for     55 degrees of freedom 
    # Null hypothesis probability =   9.109750e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.079e-07   5.590e-08
    25- 50  1.701e-07   9.072e-08
    50-150  1.070e-07   6.668e-08
    15-150  3.850e-07   2.001e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from    3.420 sec. to    4.420 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.52175     ( -0.385637   0.38541 )
    Norm@50keV  : 9.64937E-03    ( -0.0022558   0.00225046 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          71.25 using 59 PHA bins.
    # Reduced chi-squared =          1.250 for     57 degrees of freedom 
    # Null hypothesis probability =   9.709881e-02
     
    Photon flux (15-150 keV)    in 1 sec: 1.21180 ( -0.296475  0.298752 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 9.12237e-08 ( -2.23327e-08  2.25175e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    3.420 sec. to    4.420 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.665535     ( -4.16609   1.18517 )
    Epeak [keV] : 77.7035      ( -54.5817 -77.7939 )
    Norm@50keV  : 2.63948E-02    ( -0.0263162   4.18062 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          70.58 using 59 PHA bins.
    # Reduced chi-squared =          1.260 for     56 degrees of freedom 
    # Null hypothesis probability =   9.093611e-02
     
    Photon flux (15-150 keV)    in 1 sec: 1.18095 ( -0.295838  0.30573 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 8.69929e-08 ( -2.75082e-08  2.44511e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from    3.420 sec. to    4.420 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 1.05743   ( -0.786863   -0.786863 )
    beta        : -2.18809    ( 2.25995   0.929921 )
    Epeak [keV] : 50.8129      ( -52.1225 71.5964 )
    Norm@50keV   : 0.248407    ( -0.248867   39.7535 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.14 using 59 PHA bins.
    # Reduced chi-squared =          1.257 for     55 degrees of freedom 
    # Null hypothesis probability =   9.520281e-02
     
    Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 8.54176e-08 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 13.7447  (-2.92527  4.32697)
    R^2/D10^2   : 0.196966  (-0.125837   0.275069)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          72.11 using 59 PHA bins.
    # Reduced chi-squared =          1.265 for     57 degrees of freedom 
    # Null hypothesis probability =   8.572904e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  7.872e-09   3.590e-09
    25- 50  2.874e-08   1.025e-08
    50-150  3.541e-08   1.735e-08
    15-150  7.203e-08   3.123e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 199.363       (-119.048      -199.363)
    Norm        : 5.01286       (-1.15936     1.47515)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          70.84 using 59 PHA bins.
    # Reduced chi-squared =          1.243 for     57 degrees of freedom 
    # Null hypothesis probability =   1.028955e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.248e-08   7.425e-09
    25- 50  2.401e-08   1.404e-08
    50-150  5.266e-08   3.120e-08
    15-150  8.916e-08   5.210e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 11.2094        (-3.50339      3.62117)
    R1^2/D10^2  : 0.354593        (-0.225912      0.715385)
    kT2 [keV]   : 96.1248        (-79.9643      -99.3426)
    R2^2/D10^2  : 3.46318E-04    (-0.000292287   0.0319098)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          68.11 using 59 PHA bins.
    # Reduced chi-squared =          1.238 for     55 degrees of freedom 
    # Null hypothesis probability =   1.102406e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  9.544e-09   5.760e-09
    25- 50  2.868e-08   1.808e-08
    50-150  5.069e-08   2.419e-08
    15-150  8.892e-08   4.495e-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: 2.23705     ( -0.245086   0.268361 )
    Norm@50keV  : 3.57836E-03    ( -0.000662073   0.00064465 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          47.73 using 59 PHA bins.
    # Reduced chi-squared =         0.8373 for     57 degrees of freedom 
    # Null hypothesis probability =   8.042988e-01
     
    Photon flux (15-150 keV)    in 13.1 sec: 0.604193 ( -0.0825994  0.0826489 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 4.4317e-07 ( -6.9491e-08  7.10557e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.442971     ( -1.7848   1.41153 )
    Epeak [keV] : 34.0964      ( -20.9762 8.05435 )
    Norm@50keV  : 4.18422E-02    ( -0.0418439   0.440686 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          42.80 using 59 PHA bins.
    # Reduced chi-squared =         0.7644 for     56 degrees of freedom 
    # Null hypothesis probability =   9.026213e-01
     
    Photon flux (15-150 keV)    in 13.1 sec: 0.574347 ( -0.084993  0.085443 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.93145e-07 ( -6.53454e-08  7.51128e-08 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -0.736242   ( -0.795584   5.26466 )
    beta        : -3.56153    ( 3.48859   1.06773 )
    Epeak [keV] : 33.4741      ( -9.3452 7.94906 )
    Norm@50keV   : 2.76910E-02    ( -0.0225216   3.85636 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          42.64 using 59 PHA bins.
    # Reduced chi-squared =         0.7753 for     55 degrees of freedom 
    # Null hypothesis probability =   8.879064e-01
     
    Photon flux (15-150 keV)    in 13.1 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 4.02745e-07 ( 0  0 ) ergs/cm2
     
    

    S(25-50 keV) vs. S(50-100 keV) plot

    S(25-50 keV)  = 1.41e-07
    S(50-100 keV) = 1.20e-07
    

    T90 vs. Hardness ratio plot

    T90                                   = 11.2480000257492 sec.
    Hardness ratio (energy fluence ratio) = 0.851064
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.3083
    Count Ratio (50-100 keV) / (15-25 keV) = 0.423048
    

    Mask shadow pattern

    IMX = -1.195712943438739E+00, IMY = 1.289594431820725E-01
    

    TIME vs. PHA plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 4.096000
    

    TIME vs. DetID plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 4.096000
    

    100 us light curve (15-350 keV)

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 4.096000
    

    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:
    -299.672000 -8.116000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    349.5245  50.0493    2.6  55.1 -173.8   2.4988   4.5 ------	UNKNOWN                       
    355.4470  56.6718    2.8  59.0 -166.2   4.3563   4.2 ------	UNKNOWN                       
    

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

    Time interval of the image:
    -8.116000 4.984000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    353.5289  45.9584    1.2  50.3 -173.8   0.7369  10.0 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    111.428600 302.397300
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    308.0150  40.7808    8.8  33.2   97.3  -0.3730  -1.3   11.2	Cyg X-3                       
    326.2971  38.4434  141.1  21.6   78.9  -0.0120  -0.1    9.4	Cyg X-2                       
    307.3245  42.7390    2.9  32.9  101.0   1.0374   4.0 ------	UNKNOWN                       
     82.9093  58.3358    2.9  51.9 -138.6   2.5097   4.0 ------	UNKNOWN                       
    
    Plot creation:
    Sun May 31 16:43:33 EDT 2015