batgrbproduct Analysis for Trigger=158593

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Jan 22 19:56:08 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger158593
======================================================================

  Trigger: 00158593      Segment: 000

  BAT Trigger Time: 150323433.024   [s; MET]
      Trigger Stop: 150323437.12   [s; MET]
               UTC: 2005-10-06T20:30:33.255560    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 110.830064621421   Dec: 9.53064743051798  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.25
     Image Trigger?:     NO
     Rate S/N Ratio:     17.1464281994822  [ if not an image trigger ]
     Image S/N Ratio:    7.25

  Flight Position:   [ source = BAT ]
    RA: 110.830064621421   Dec: 9.53064743051798  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 110.806862623421   Dec: 9.50771566571519  [deg; J2000]  
        { 07h 23m 13.6s , +09d 30' 27.8" }
         +/- 1.47526079326717 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.600145954690198 [arcmin] (formal 1-sigma fit error)
    SNR: 17.453287236967
 
  Angular difference between Flight and Ground position is 1.943736 arcmin
 
  Partial Coding Fraction: 0.2167969    [ including projection effects ]

  Duration
     T90: 35.4079999625683 +/- 8.93460687736312
        Measured from: -11.8879999816418
                   to: 23.5199999809265     [s; relative to TRIGTIME]
     T50: 11.7919999659061 +/- 7.99679936024475
        Measured from: -1.391999989748
                   to: 10.3999999761581     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 3.23600000143051     
                   to: 4.23600000143051     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -14.3519999980927     
                   to: 26.5920000076294     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.549486   0.855859   0.539540   0.262976
           0.066751   0.069867   0.059698   0.050292 [error]
 Peak      0.046688   0.076444   0.065008   0.014963
           0.011212   0.011810   0.010922   0.008756 [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 1.84e-07 3.36e-07 4.73e-07 1.39e-06 1.35e-06 2.39e-06   erg/cm2
              Error 3.08e-08 3.43e-08 5.97e-08 3.80e-07 1.45e-07 4.24e-07   erg/cm2
Peak flux Power-law 4.95e-01 5.47e-01 4.31e-01 5.61e-01 1.68e+00 2.03e+00   ph/cm2/s
              Error 1.47e-01 1.02e-01 8.44e-02 2.24e-01 2.89e-01 3.47e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.84e-07 3.37e-07 4.73e-07 1.25e-06 1.35e-06 2.38e-06   erg/cm2
              Error 3.22e-08 3.82e-08 6.16e-08 6.06e-07 1.52e-07 --------   erg/cm2
Peak flux Cutoff-PL 4.37e-01 5.86e-01 4.59e-01 2.72e-01 1.64e+00 1.75e+00   ph/cm2/s
              Error 1.69e-01 1.23e-01 9.87e-02 3.44e-01 2.95e-01 4.45e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 4.16e-01 6.32e-01 4.27e-01 4.48e-01 1.65e+00 1.92e+00   ph/cm2/s
              Error 1.53e-01 -------- 8.86e-02 -------- 3.00e-01 3.87e-01   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.508    0.169    -      -           3.49e-03 3.43e-04   72.220 57
CPL   1.425    0.000     338.0    0.0      3.86e-03 0.00e+00   72.280 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.344    0.275    -      -           1.40e-02 2.34e-03   40.760 57
CPL   0.645    1.125      98.3  -29.9      3.14e-02 6.76e-02   39.480 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: 12.288000 sec.
T50 in the 50-300 keV band: 6.400000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   40.944  -14.352   26.592
T90    35.408  -11.888   23.520
T50    11.792   -1.392   10.400
Peak    1.000    3.236    4.236
  • Click here for the BAT GCN circular template

    Image

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

    #   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
      110.8069     9.5077   0.0111    35.8073   120.7639         2.4016122     17.453 TRIG_00158593                 
     
    Foreground time interval of the image:
    -14.352  26.592 (delta_t =  40.944 [sec])
    Background time interval of the image:
    -299.024 -14.352 (delta_t = 284.672 [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  -14.352 sec. to   26.592 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.50825     ( -0.169317   0.169434 )
    Norm@50keV  : 3.49179E-03    ( -0.000343347   0.000341874 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          72.22 using 59 PHA bins.
    # Reduced chi-squared =          1.267 for     57 degrees of freedom 
    # Null hypothesis probability =   8.429894e-02
     
    Photon flux (15-150 keV)    in 40.94 sec: 0.436886 ( -0.0433258  0.0434307 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.35432e-06 ( -1.44325e-07  1.45424e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from  -14.352 sec. to   26.592 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.42536     (     )
    Epeak [keV] : 338.030      (   )
    Norm@50keV  : 3.85806E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          72.28 using 59 PHA bins.
    # Reduced chi-squared =          1.291 for     56 degrees of freedom 
    # Null hypothesis probability =   7.055410e-02
     
    Photon flux (15-150 keV)    in 40.94 sec: 0.436760 ( -0.044282  0.043168 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.35444e-06 ( -1.59101e-07  1.44616e-07 ) ergs/cm2
     
    
    Band function
    Time interval is from  -14.352 sec. to   26.592 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 4.51170   ( -4.5117   -4.5117 )
    beta        : -1.67031    ( -0.229574   0.212644 )
    Epeak [keV] : 28.2722      ( -6.19716 5.09248 )
    Norm@50keV   : 82.0566    ( -7.84074   1.52664e+06 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.86 using 59 PHA bins.
    # Reduced chi-squared =          1.270 for     55 degrees of freedom 
    # Null hypothesis probability =   8.552348e-02
     
    Photon flux (15-150 keV)    in 40.94 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]    : 13.7997  (-1.8673  2.30628)
    R^2/D10^2   : 6.48531E-02  (-0.0273923   0.0447656)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         105.18 using 59 PHA bins.
    # Reduced chi-squared =         1.8452 for     57 degrees of freedom 
    # Null hypothesis probability =   1.076286e-04
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.069e-07   1.973e-08
    25- 50  3.920e-07   5.635e-08
    50-150  4.879e-07   9.676e-08
    15-150  9.868e-07   1.312e-07
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 199.359       (-63.4048      -199.363)
    Norm        : 1.78872       (-0.171675     0.171979)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          72.93 using 59 PHA bins.
    # Reduced chi-squared =          1.279 for     57 degrees of freedom 
    # Null hypothesis probability =   7.592373e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.824e-07   5.156e-08
    25- 50  3.508e-07   1.765e-07
    50-150  7.693e-07   3.900e-07
    15-150  1.302e-06   5.474e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 8.06243        (-1.43372      1.67138)
    R1^2/D10^2  : 0.338636        (-0.158504      0.319058)
    kT2 [keV]   : 40.0134        (-13.0913      52.9859)
    R2^2/D10^2  : 1.39025E-03    (-0.00119712   0.00344312)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          66.50 using 59 PHA bins.
    # Reduced chi-squared =          1.209 for     55 degrees of freedom 
    # Null hypothesis probability =   1.377591e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.756e-07   6.284e-08
    25- 50  3.709e-07   1.218e-07
    50-150  8.452e-07   4.312e-07
    15-150  1.392e-06   5.339e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from    3.236 sec. to    4.236 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.34381     ( -0.277147   0.273102 )
    Norm@50keV  : 1.39827E-02    ( -0.00233849   0.00233307 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          40.76 using 59 PHA bins.
    # Reduced chi-squared =         0.7151 for     57 degrees of freedom 
    # Null hypothesis probability =   9.486049e-01
     
    Photon flux (15-150 keV)    in 1 sec: 1.68239 ( -0.288327  0.289262 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.36756e-07 ( -2.47664e-08  2.50442e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    3.236 sec. to    4.236 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.644886     ( -1.3631   0.887729 )
    Epeak [keV] : 98.3450      ( -38.4825 -98.3393 )
    Norm@50keV  : 3.13986E-02    ( -0.0190567   0.116161 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          39.48 using 59 PHA bins.
    # Reduced chi-squared =         0.7051 for     56 degrees of freedom 
    # Null hypothesis probability =   9.537959e-01
     
    Photon flux (15-150 keV)    in 1 sec: 1.64373 ( -0.29471  0.29521 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.30603e-07 ( -2.7167e-08  2.6646e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from    3.236 sec. to    4.236 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 4.93037   ( -13.921   -4.93037 )
    beta        : -1.57699    ( -0.561389   0.35429 )
    Epeak [keV] : 30.7862      ( -13.2206 19.5897 )
    Norm@50keV   : 354.205    ( -58.1004   11103.2 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          37.89 using 59 PHA bins.
    # Reduced chi-squared =         0.6890 for     55 degrees of freedom 
    # Null hypothesis probability =   9.619793e-01
     
    Photon flux (15-150 keV)    in 1 sec: 1.65304 ( 5.34696  -0.30081 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.32558e-07 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 16.0999  (-3.14946  4.12153)
    R^2/D10^2   : 0.157242  (-0.0855373   0.177181)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.14 using 59 PHA bins.
    # Reduced chi-squared =         0.7919 for     57 degrees of freedom 
    # Null hypothesis probability =   8.719275e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  8.415e-09   2.681e-09
    25- 50  3.560e-08   9.120e-09
    50-150  6.465e-08   2.341e-08
    15-150  1.087e-07   2.748e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 200.000       (      )
    Norm        : 7.02156       (-1.17299     1.1729)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          41.44 using 59 PHA bins.
    # Reduced chi-squared =         0.7270 for     57 degrees of freedom 
    # Null hypothesis probability =   9.397126e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.749e-08   1.014e-08
    25- 50  3.364e-08   1.914e-08
    50-150  7.377e-08   4.213e-08
    15-150  1.249e-07   7.070e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 8.97161        (-3.76193      5.08326)
    R1^2/D10^2  : 0.759350        (-0.552963      3.17141)
    kT2 [keV]   : 32.1953        (-19.2055      -32.2438)
    R2^2/D10^2  : 1.06759E-02    (-0.0101809   0.0722871)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          38.23 using 59 PHA bins.
    # Reduced chi-squared =         0.6951 for     55 degrees of freedom 
    # Null hypothesis probability =   9.584545e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.354e-08   7.765e-09
    25- 50  3.563e-08   1.979e-08
    50-150  8.405e-08   5.080e-08
    15-150  1.332e-07   6.815e-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: 1.50825     ( -0.169317   0.169434 )
    Norm@50keV  : 3.49179E-03    ( -0.000343347   0.000341874 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          72.22 using 59 PHA bins.
    # Reduced chi-squared =          1.267 for     57 degrees of freedom 
    # Null hypothesis probability =   8.429894e-02
     
    Photon flux (15-150 keV)    in 40.94 sec: 0.436886 ( -0.0433258  0.0434307 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.35432e-06 ( -1.44325e-07  1.45424e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.42536     (     )
    Epeak [keV] : 338.030      (   )
    Norm@50keV  : 3.85806E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          72.28 using 59 PHA bins.
    # Reduced chi-squared =          1.291 for     56 degrees of freedom 
    # Null hypothesis probability =   7.055410e-02
     
    Photon flux (15-150 keV)    in 40.94 sec: 0.436760 ( -0.044282  0.043168 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.35444e-06 ( -1.59101e-07  1.44616e-07 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 4.51170   ( -4.5117   -4.5117 )
    beta        : -1.67031    ( -0.229574   0.212644 )
    Epeak [keV] : 28.2722      ( -6.19716 5.09248 )
    Norm@50keV   : 82.0566    ( -7.84074   1.5282e+06 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.86 using 59 PHA bins.
    # Reduced chi-squared =          1.270 for     55 degrees of freedom 
    # Null hypothesis probability =   8.552348e-02
     
    Photon flux (15-150 keV)    in 40.94 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)  = 3.36e-07
    S(50-100 keV) = 4.73e-07
    

    T90 vs. Hardness ratio plot

    T90                                   = 35.4079999625683 sec.
    Hardness ratio (energy fluence ratio) = 1.40774
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.55756
    Count Ratio (50-100 keV) / (15-25 keV) = 0.981899
    

    Mask shadow pattern

    IMX = -3.690049738593683E-01, IMY = -6.199002061498001E-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:
    -299.024000 -14.352000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.5067 -40.5532    0.6  28.7    1.3   3.7503  18.6    1.0	Vela X-1                      
    170.1383 -60.6775    4.8  53.5  -23.2   1.2309   2.4    6.2	Cen X-3                       
    114.5591 -41.3917    2.7  36.5   27.0   1.0795   4.4 ------	UNKNOWN                       
    138.7870 -48.4440    2.7  36.3   -4.3   0.9812   4.3 ------	UNKNOWN                       
    

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

    Time interval of the image:
    -14.352000 26.592000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.6917 -40.5130   89.5  28.6    1.0   0.0087   0.1    7.8	Vela X-1                      
    170.0997 -60.5146    0.0  53.4  -23.3  -0.3618  -1.9    9.1	Cen X-3                       
    110.8069   9.5077    0.7  35.8  120.8   2.4010  17.5 ------	UNKNOWN                       
    109.6407 -49.0158    2.0  44.4   22.7   0.7700   5.7 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    92.276590 303.044100
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.6322  22.0131    0.3  28.9  112.1   9.0988  38.2    0.1	Crab                          
    135.7248 -40.3974   10.7  54.9  -29.7   0.7952   1.1   13.0	Vela X-1                      
    102.2057  29.1215    2.7  21.2  152.0   0.6769   4.3 ------	UNKNOWN                       
    114.6522  51.4724    2.5  42.1  176.8   1.0316   4.6 ------	UNKNOWN                       
    126.4047 -45.5589    2.8  56.8  -19.7   2.7483   4.1 ------	UNKNOWN                       
    
    Plot creation:
    Sun May 31 15:27:06 EDT 2015