batgrbproduct Analysis for Trigger=219646

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Jan 22 15:00:45 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger219646
======================================================================

  Trigger: 00219646      Segment: 000

  BAT Trigger Time: 174820060.224   [s; MET]
      Trigger Stop: 174820062.272   [s; MET]
               UTC: 2006-07-17T09:07:38.901820    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 170.861533651496   Dec: 28.948397280501  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    6.68
     Image Trigger?:     NO
     Rate S/N Ratio:     9.69535971483266  [ if not an image trigger ]
     Image S/N Ratio:    6.68

  Flight Position:   [ source = BAT ]
    RA: 170.861533651496   Dec: 28.948397280501  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 170.854594433506   Dec: 28.9691754053938  [deg; J2000]  
        { 11h 23m 25.1s , +28d 58' 09.0" }
         +/- 2.65714800276093 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.11297727886839 [arcmin] (formal 1-sigma fit error)
    SNR: 7.53026348553565
 
  Angular difference between Flight and Ground position is 1.298823 arcmin
 
  Partial Coding Fraction: 0.9921875    [ including projection effects ]

  Duration
     T90: 3 +/- 1.4142135623731
        Measured from: -0.224000006914139
                   to: 2.77599999308586     [s; relative to TRIGTIME]
     T50: 1 +/- 1
        Measured from: 0.775999993085861
                   to: 1.77599999308586     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.775999993085861     
                   to: 1.77599999308586     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.224000006914139     
                   to: 2.77599999308586     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.034285   0.050494   0.025383   0.007566
           0.008027   0.008312   0.007362   0.006511 [error]
 Peak      0.021089   0.029426   0.012590   0.002860
           0.004676   0.004915   0.004325   0.003790 [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-08 1.75e-08 2.21e-08 5.58e-08 6.58e-08 1.06e-07   erg/cm2
              Error 3.07e-09 3.50e-09 6.77e-09 3.48e-08 1.61e-08 4.16e-08   erg/cm2
Peak flux Power-law 2.13e-01 1.73e-01 9.52e-02 7.68e-02 5.16e-01 5.58e-01   ph/cm2/s
              Error 5.86e-02 3.64e-02 3.14e-02 4.68e-02 1.08e-01 1.21e-01   ph/cm2/s
 
Fluence   Cutoff-PL 9.40e-09 2.04e-08 2.11e-08 9.13e-09 5.75e-08 6.00e-08   erg/cm2
              Error 3.59e-09 6.50e-09 8.79e-09 3.58e-08 1.80e-08 4.66e-08   erg/cm2
Peak flux Cutoff-PL 1.63e-01 2.32e-01 9.16e-02 5.95e-03 4.92e-01 4.92e-01   ph/cm2/s
              Error 7.24e-02 5.41e-02 4.02e-02 1.57e-02 1.06e-01 1.07e-01   ph/cm2/s
 
Fluence        Band 9.05e-09 2.09e-08 2.02e-08 2.46e-08 5.96e-08 7.56e-08   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    1.663    0.351    -      -           2.36e-03 5.39e-04   71.200 57
CPL   0.396    2.236      53.8  -18.9      1.24e-02 2.47e-01   69.650 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.862    0.349    -      -           3.65e-03 9.43e-04   68.990 57
CPL  -0.771    2.366      43.9   11.1      1.19e-01 2.67e+00   61.880 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    3.000   -0.224    2.776
T90     3.000   -0.224    2.776
T50     1.000    0.776    1.776
Peak    1.000    0.776    1.776
  • 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
      170.8546    28.9692   0.0255    12.9818  -130.5169         0.1131700      7.530 TRIG_00219646                 
     
    Foreground time interval of the image:
     -0.224   2.776 (delta_t =   3.000 [sec])
    Background time interval of the image:
    -239.224  -0.224 (delta_t = 239.000 [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   -0.224 sec. to    2.776 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.66342     ( -0.340055   0.362037 )
    Norm@50keV  : 2.35983E-03    ( -0.00054713   0.000531052 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          71.20 using 59 PHA bins.
    # Reduced chi-squared =          1.249 for     57 degrees of freedom 
    # Null hypothesis probability =   9.775051e-02
     
    Photon flux (15-150 keV)    in 3 sec: 0.309513 ( -0.0617288  0.061732 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 6.57573e-08 ( -1.57552e-08  1.64019e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   -0.224 sec. to    2.776 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.396484     ( -2.75703   1.71503 )
    Epeak [keV] : 53.8295      ( -16.0283 -53.8259 )
    Norm@50keV  : 1.24052E-02    ( -0.0124108   0.48101 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.65 using 59 PHA bins.
    # Reduced chi-squared =          1.244 for     56 degrees of freedom 
    # Null hypothesis probability =   1.038365e-01
     
    Photon flux (15-150 keV)    in 3 sec: 0.295697 ( -0.064454  0.064615 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.75403e-08 ( -1.63596e-08  1.96368e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   -0.224 sec. to    2.776 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 0.362968   ( -0.666391   4.07869 )
    beta        : -2.42618    ( 2.42595   0.957586 )
    Epeak [keV] : 45.2431      ( -44.0202 28.8299 )
    Norm@50keV   : 3.77028E-02    ( -0.0369047   115.67 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.34 using 59 PHA bins.
    # Reduced chi-squared =          1.261 for     55 degrees of freedom 
    # Null hypothesis probability =   9.237834e-02
     
    Photon flux (15-150 keV)    in 3 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.95872e-08 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 11.6488  (-2.26374  2.98065)
    R^2/D10^2   : 8.76443E-02  (-0.0496546   0.104562)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          71.25 using 59 PHA bins.
    # Reduced chi-squared =          1.250 for     57 degrees of freedom 
    # Null hypothesis probability =   9.711358e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  7.523e-09   2.856e-09
    25- 50  2.285e-08   7.837e-09
    50-150  1.827e-08   9.288e-09
    15-150  4.864e-08   1.588e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 126.212       (-66.5803      -124.334)
    Norm        : 1.31581       (-0.286321     0.410887)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          70.30 using 59 PHA bins.
    # Reduced chi-squared =          1.233 for     57 degrees of freedom 
    # Null hypothesis probability =   1.109756e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.026e-08   5.799e-09
    25- 50  1.851e-08   1.052e-08
    50-150  3.385e-08   2.281e-08
    15-150  6.262e-08   3.823e-08
    
    Double BB
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.96 using 59 PHA bins.
    #Fit statistic : Chi-Squared =          69.44 using 59 PHA bins.
    #Fit statistic : Chi-Squared =          69.42 using 59 PHA bins.
    #Fit statistic : Chi-Squared =          69.40 using 59 PHA bins.
    # Reduced chi-squared =          1.272 for     55 degrees of freedom 
    # Reduced chi-squared =          1.263 for     55 degrees of freedom 
    # Reduced chi-squared =          1.262 for     55 degrees of freedom 
    # Reduced chi-squared =          1.262 for     55 degrees of freedom 
    # Null hypothesis probability =   8.427236e-02
    # Null hypothesis probability =   9.107295e-02
    # Null hypothesis probability =   9.130785e-02
    # Null hypothesis probability =   9.156452e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  8.922e-09   4.515e-09
    25- 50  2.103e-08   1.208e-08
    50-150  2.141e-08   1.416e-08
    15-150  5.136e-08   2.637e-08
    

    Peak spectrum fit

    Power-law model
    Time interval is from    0.776 sec. to    1.776 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.86176     ( -0.331047   0.366829 )
    Norm@50keV  : 3.65040E-03    ( -0.000954378   0.000931508 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          68.99 using 59 PHA bins.
    # Reduced chi-squared =          1.210 for     57 degrees of freedom 
    # Null hypothesis probability =   1.326098e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.515560 ( -0.108024  0.108067 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.35538e-08 ( -8.49226e-09  8.89484e-09 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    0.776 sec. to    1.776 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: -0.771391     ( -2.87206   1.85938 )
    Epeak [keV] : 43.8607      ( -8.60403 13.5996 )
    Norm@50keV  : 0.119270    ( -0.139205   5.2081 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          61.88 using 59 PHA bins.
    # Reduced chi-squared =          1.105 for     56 degrees of freedom 
    # Null hypothesis probability =   2.742545e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.492203 ( -0.106068  0.106754 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.89305e-08 ( -6.8772e-09  8.036e-09 ) ergs/cm2
     
    
    Band function
    Time interval is from    0.776 sec. to    1.776 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 0.789496   ( -1.8093   2.91743 )
    beta        : -9.37167    ( 9.37167   19.3714 )
    Epeak [keV] : 43.9255      ( -8.8273 13.2582 )
    Norm@50keV   : 0.118819    ( -0.1265   5.19514 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          61.92 using 59 PHA bins.
    # Reduced chi-squared =          1.126 for     55 degrees of freedom 
    # Null hypothesis probability =   2.429531e-01
     
    Photon flux (15-150 keV)    in 1 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]    : 11.1669  (-1.96109  2.34484)
    R^2/D10^2   : 0.180799  (-0.0926487   0.186122)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          61.94 using 59 PHA bins.
    # Reduced chi-squared =          1.087 for     57 degrees of freedom 
    # Null hypothesis probability =   3.044374e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.724e-09   1.906e-09
    25- 50  1.362e-08   4.453e-09
    50-150  9.702e-09   4.688e-09
    15-150  2.804e-08   8.790e-09
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 73.7367       (-31.4099      85.2343)
    Norm        : 2.56268       (-0.648482     0.853604)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          65.79 using 59 PHA bins.
    # Reduced chi-squared =          1.154 for     57 degrees of freedom 
    # Null hypothesis probability =   1.986889e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  6.608e-09   2.209e-09
    25- 50  1.066e-08   3.913e-09
    50-150  1.422e-08   1.051e-08
    15-150  3.149e-08   1.399e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 3.27981        (-3.46045      -3.46045)
    R1^2/D10^2  : 4.47252        (-3.87654      -3.87654)
    kT2 [keV]   : 11.9035        (-2.52157      -11.9987)
    R2^2/D10^2  : 0.134473    (-0.130023   0.200681)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          61.21 using 59 PHA bins.
    # Reduced chi-squared =          1.113 for     55 degrees of freedom 
    # Null hypothesis probability =   2.629369e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.452e-09   2.805e-09
    25- 50  1.283e-08   7.400e-09
    50-150  1.064e-08   6.735e-09
    15-150  2.892e-08   1.641e-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: 1.66342     ( -0.340055   0.362037 )
    Norm@50keV  : 2.35983E-03    ( -0.00054713   0.000531052 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          71.20 using 59 PHA bins.
    # Reduced chi-squared =          1.249 for     57 degrees of freedom 
    # Null hypothesis probability =   9.775051e-02
     
    Photon flux (15-150 keV)    in 3 sec: 0.309513 ( -0.0617288  0.061732 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 6.57573e-08 ( -1.57552e-08  1.64019e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.396484     ( -2.75703   1.71503 )
    Epeak [keV] : 53.8295      ( -16.0283 -53.8259 )
    Norm@50keV  : 1.24052E-02    ( -0.0124108   0.48101 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.65 using 59 PHA bins.
    # Reduced chi-squared =          1.244 for     56 degrees of freedom 
    # Null hypothesis probability =   1.038365e-01
     
    Photon flux (15-150 keV)    in 3 sec: 0.295697 ( -0.064454  0.064615 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.75403e-08 ( -1.63596e-08  1.96368e-08 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 0.362968   ( -0.666391   4.07868 )
    beta        : -2.42618    ( 2.42595   0.957586 )
    Epeak [keV] : 45.2431      ( -44.0202 28.8299 )
    Norm@50keV   : 3.77028E-02    ( -0.0369047   115.67 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.34 using 59 PHA bins.
    # Reduced chi-squared =          1.261 for     55 degrees of freedom 
    # Null hypothesis probability =   9.237834e-02
     
    Photon flux (15-150 keV)    in 3 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.95872e-08 ( 0  0 ) ergs/cm2
     
    

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

    S(25-50 keV)  = 1.75e-08
    S(50-100 keV) = 2.21e-08
    

    T90 vs. Hardness ratio plot

    T90                                   = 3 sec.
    Hardness ratio (energy fluence ratio) = 1.26286
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.47277
    Count Ratio (50-100 keV) / (15-25 keV) = 0.740353
    

    Mask shadow pattern

    IMX = -1.497713022709813E-01, IMY = 1.752550698408311E-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:
    -239.224000 -0.224000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    198.2285 -11.8471    2.9  49.3  148.0   2.6543   4.0 ------	UNKNOWN                       
    188.1816   3.5067    2.7  32.3  158.7   0.9280   4.3 ------	UNKNOWN                       
    166.1888  38.1875    2.0  14.5  -88.0   0.9531   5.9 ------	UNKNOWN                       
    121.8879  56.3594    2.9  46.0  -56.6   3.3401   4.0 ------	UNKNOWN                       
    

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

    Time interval of the image:
    -0.224000 2.776000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    170.8546  28.9692    1.5  13.0 -130.5   0.1132   7.5 ------	UNKNOWN                       
     99.9677  73.9814    2.9  54.4  -33.4   0.3014   4.0 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    113.076590 125.676600
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    245.0217 -15.6685    1.0  19.1  101.4   0.4420  11.8    3.0	Sco X-1                       
    254.4791  35.4268    7.4  48.9   10.4   0.1428   1.5    5.2	Her X-1                       
    256.1329 -37.8305    4.9  40.4  126.3   0.2177   2.4    7.0	4U 1700-377                   
    256.5278 -36.5477   22.6  39.8  124.5   0.0483   0.5    8.7	GX 349+2                      
    263.0074 -24.7644   35.5  38.2  103.8   0.0384   0.3    1.1	GX 1+4                        
    268.3683  -1.3748    4.8  40.7   65.9  -0.3075  -2.4    4.7	SW J1753.5-0127               
    233.7346 -45.2038    2.3  39.0  154.9   0.2773   4.9 ------	UNKNOWN                       
    219.7494 -25.5851    2.5  20.6 -177.2   0.1370   4.6 ------	UNKNOWN                       
    235.9023  51.3323    1.9  58.3  -12.7   1.1707   6.2 ------	UNKNOWN                       
    178.9688 -22.8464    2.4  49.8 -133.0   0.7344   4.7 ------	UNKNOWN                       
    
    Plot creation:
    Sun May 31 12:35:49 EDT 2015