batgrbproduct Analysis for Trigger=601051

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat Oct  4 22:29:45 EDT 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger601051
======================================================================

  Trigger: 00601051      Segment: 000

  BAT Trigger Time: 423854024   [s; MET]
      Trigger Stop: 423854088   [s; MET]
               UTC: 2014-06-07T17:13:31.890280    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 86.3799003443427   Dec: 18.9168424555503  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.87
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    7.87

  Flight Position:   [ source = BAT ]
    RA: 86.3799003443427   Dec: 18.9168424555503  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 86.3755614903154   Dec: 18.9070197559353  [deg; J2000]  
        { 05h 45m 30.1s , +18d 54' 25.3" }
         +/- 1.84791277423821 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.981038155484248 [arcmin] (formal 1-sigma fit error)
    SNR: 12.6515825849365
 
  Angular difference between Flight and Ground position is 0.638749 arcmin
 
  Partial Coding Fraction: 0.1601562    [ including projection effects ]

  Duration
     T90: 94.7680000066757 +/- 16.2354456867897
        Measured from: -14.0879999995232
                   to: 80.6800000071526     [s; relative to TRIGTIME]
     T50: 47.0720000267029 +/- 16.521743206482
        Measured from: 12.6159999966621
                   to: 59.688000023365     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 31.5799999833107     
                   to: 32.5799999833107     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -17.8000000119209     
                   to: 85.6560000181198     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.120728   1.347777   0.860667   0.333071
           0.147225   0.154312   0.136301   0.120418 [error]
 Peak      0.040697   0.048432   0.023391   0.026035
           0.014982   0.015305   0.013444   0.011507 [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 3.64e-07 5.79e-07 6.93e-07 1.62e-06 2.10e-06 3.25e-06   erg/cm2
              Error 7.11e-08 7.30e-08 1.33e-07 6.43e-07 3.12e-07 7.68e-07   erg/cm2
Peak flux Power-law 4.21e-01 3.08e-01 1.49e-01 1.02e-01 9.26e-01 9.80e-01   ph/cm2/s
              Error 2.25e-01 1.17e-01 6.89e-02 8.44e-02 3.63e-01 3.69e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.65e-07 5.79e-07 6.93e-07 1.60e-06 2.10e-06 3.24e-06   erg/cm2
              Error 7.15e-08 8.14e-08 1.33e-07 1.02e-06 3.23e-07 1.03e-06   erg/cm2
Peak flux Cutoff-PL 4.01e-01 3.28e-01 1.60e-01 7.20e-02 9.32e-01 9.61e-01   ph/cm2/s
              Error 2.45e-01 1.48e-01 8.86e-02 6.88e-02 3.65e-01 3.75e-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    1.740    0.230    -      -           2.20e-03 3.12e-04   73.250 57
CPL   1.719    0.889     565.8    0.0      2.26e-03 0.00e+00   73.270 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.045    0.576    -      -           6.05e-03 2.36e-03   63.850 57
CPL   1.635    1.924      45.4    0.0      9.99e-03 0.00e+00   63.740 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: 112.448000 sec.
T50 in the 50-300 keV band: 64.896000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  103.456  -17.800   85.656
T90    94.768  -14.088   80.680
T50    47.072   12.616   59.688
Peak    1.000   31.580   32.580
  • 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
       86.3756    18.9070   0.0152    37.2664   -85.2184         4.1386695     12.652 TRIG_00601051                 
     
    Foreground time interval of the image:
    -17.800  85.656 (delta_t = 103.456 [sec])
    Background time interval of the image:
    -239.000 -17.800 (delta_t = 221.200 [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  -17.800 sec. to   85.656 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.73961     ( -0.225637   0.233726 )
    Norm@50keV  : 2.20125E-03    ( -0.000315447   0.000308157 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          73.25 using 59 PHA bins.
    # Reduced chi-squared =          1.285 for     57 degrees of freedom 
    # Null hypothesis probability =   7.232391e-02
     
    Photon flux (15-150 keV)    in 103.5 sec: 0.296514 ( -0.0376138  0.037644 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.10353e-06 ( -3.09289e-07  3.1444e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from  -17.800 sec. to   85.656 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.71870     ( -0.791713   0.986154 )
    Epeak [keV] : 565.826      (   )
    Norm@50keV  : 2.26051E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          73.27 using 59 PHA bins.
    # Reduced chi-squared =          1.308 for     56 degrees of freedom 
    # Null hypothesis probability =   6.053123e-02
     
    Photon flux (15-150 keV)    in 103.5 sec: 0.296402 ( -0.037273  0.037644 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.10228e-06 ( -3.34067e-07  3.12197e-07 ) ergs/cm2
     
    
    Band function
    Time interval is from  -17.800 sec. to   85.656 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 4.34825   ( -4.34823   -4.34823 )
    beta        : -1.85345    ( -0.333493   0.266194 )
    Epeak [keV] : 23.7993      ( -23.7991 5.8293 )
    Norm@50keV   : 126.751    ( -126.808   28.5285 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          72.22 using 59 PHA bins.
    # Reduced chi-squared =          1.313 for     55 degrees of freedom 
    # Null hypothesis probability =   5.960863e-02
     
    Photon flux (15-150 keV)    in 103.5 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]    : 10.8448  (-1.74046  2.20008)
    R^2/D10^2   : 0.102008  (-0.0504194   0.0940091)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          92.79 using 59 PHA bins.
    # Reduced chi-squared =          1.628 for     57 degrees of freedom 
    # Null hypothesis probability =   1.922303e-03
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.587e-07   6.784e-08
    25- 50  7.181e-07   1.324e-07
    50-150  4.718e-07   1.651e-07
    15-150  1.449e-06   2.707e-07
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 118.700       (-47.9321      -118.726)
    Norm        : 1.26250       (-0.195869     0.255508)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          74.30 using 59 PHA bins.
    # Reduced chi-squared =          1.303 for     57 degrees of freedom 
    # Null hypothesis probability =   6.161271e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.405e-07   6.262e-08
    25- 50  6.080e-07   1.394e-07
    50-150  1.079e-06   5.649e-07
    15-150  2.028e-06   7.634e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 7.22617        (-1.66995      1.88023)
    R1^2/D10^2  : 0.374737        (-0.209175      0.584149)
    kT2 [keV]   : 37.1842        (-15.3181      121.125)
    R2^2/D10^2  : 9.92015E-04    (-0.000940368   0.00386723)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          70.86 using 59 PHA bins.
    # Reduced chi-squared =          1.288 for     55 degrees of freedom 
    # Null hypothesis probability =   7.365615e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.552e-07   1.423e-07
    25- 50  6.175e-07   2.280e-07
    50-150  1.211e-06   6.638e-07
    15-150  2.184e-06   9.583e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from   31.580 sec. to   32.580 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.04481     ( -0.540118   0.612332 )
    Norm@50keV  : 6.04676E-03    ( -0.00241473   0.0023145 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          63.85 using 59 PHA bins.
    # Reduced chi-squared =          1.120 for     57 degrees of freedom 
    # Null hypothesis probability =   2.484648e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.926216 ( -0.363294  0.363528 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.59189e-08 ( -2.10704e-08  2.10529e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   31.580 sec. to   32.580 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.63476     ( -2.51735   1.3316 )
    Epeak [keV] : 45.4023      (   )
    Norm@50keV  : 9.99035E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          63.74 using 59 PHA bins.
    # Reduced chi-squared =          1.138 for     56 degrees of freedom 
    # Null hypothesis probability =   2.228678e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.932204 ( -0.364705  0.365126 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.66596e-08 ( -2.12647e-08  2.14718e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   31.580 sec. to   32.580 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 4.97052   ( -7.86584   -4.97052 )
    beta        : -2.17255    ( -1.55005   0.602141 )
    Epeak [keV] : 22.6708      ( -22.6708 60.2818 )
    Norm@50keV   : 1897.20    ( -691.722   1.55634e+07 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          63.40 using 59 PHA bins.
    # Reduced chi-squared =          1.153 for     55 degrees of freedom 
    # Null hypothesis probability =   2.044257e-01
     
    Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.6391e-08 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 9.59727  (-4.02539  11.3514)
    R^2/D10^2   : 0.523334  (-0.500556   3.66435)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          67.67 using 59 PHA bins.
    # Reduced chi-squared =          1.187 for     57 degrees of freedom 
    # Null hypothesis probability =   1.574545e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  9.668e-09   6.330e-09
    25- 50  2.265e-08   1.482e-08
    50-150  1.048e-08   8.320e-09
    15-150  4.280e-08   2.885e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 76.9303       (-43.6887      -76.9303)
    Norm        : 4.51584       (-2.14168     3.27274)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          63.80 using 59 PHA bins.
    # Reduced chi-squared =          1.119 for     57 degrees of freedom 
    # Null hypothesis probability =   2.499469e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.169e-08   5.840e-09
    25- 50  1.905e-08   1.126e-08
    50-150  2.619e-08   2.010e-08
    15-150  5.693e-08   3.630e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 6.65645        (-4.02465      5.43877)
    R1^2/D10^2  : 1.71474        (-1.5092      87.7473)
    kT2 [keV]   : 24.7906        (-11.9256      -24.8625)
    R2^2/D10^2  : 8.21195E-03    (-0.00811594   0.134643)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          63.20 using 59 PHA bins.
    # Reduced chi-squared =          1.149 for     55 degrees of freedom 
    # Null hypothesis probability =   2.092766e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.243e-08   8.120e-09
    25- 50  1.929e-08   1.235e-08
    50-150  2.467e-08   1.398e-08
    15-150  5.639e-08   3.099e-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: 1.73961     ( -0.225637   0.233726 )
    Norm@50keV  : 2.20125E-03    ( -0.000315447   0.000308157 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          73.25 using 59 PHA bins.
    # Reduced chi-squared =          1.285 for     57 degrees of freedom 
    # Null hypothesis probability =   7.232391e-02
     
    Photon flux (15-150 keV)    in 103.5 sec: 0.296514 ( -0.0376138  0.037644 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.10353e-06 ( -3.09289e-07  3.1444e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.71870     ( -0.791713   0.986154 )
    Epeak [keV] : 565.826      (   )
    Norm@50keV  : 2.26051E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          73.27 using 59 PHA bins.
    # Reduced chi-squared =          1.308 for     56 degrees of freedom 
    # Null hypothesis probability =   6.053123e-02
     
    Photon flux (15-150 keV)    in 103.5 sec: 0.296402 ( -0.037273  0.037644 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.10228e-06 ( -3.34067e-07  3.12197e-07 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 4.34825   ( -4.34823   -4.34823 )
    beta        : -1.85345    ( -0.333493   0.266194 )
    Epeak [keV] : 23.7993      ( -23.7991 5.8293 )
    Norm@50keV   : 126.751    ( -126.808   28.5285 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          72.22 using 59 PHA bins.
    # Reduced chi-squared =          1.313 for     55 degrees of freedom 
    # Null hypothesis probability =   5.960863e-02
     
    Photon flux (15-150 keV)    in 103.5 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)  = 5.79e-07
    S(50-100 keV) = 6.93e-07
    

    T90 vs. Hardness ratio plot

    T90                                   = 94.7680000066757 sec.
    Hardness ratio (energy fluence ratio) = 1.19689
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.20259
    Count Ratio (50-100 keV) / (15-25 keV) = 0.767954
    

    Mask shadow pattern

    IMX = 6.342461359351292E-02, IMY = 7.582216673749773E-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:
    -239.000000 -17.800000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.5116 -40.5820    2.9  39.9  120.2   2.6803   4.0    1.8	Vela X-1                      
    106.2971 -53.3262    2.5  49.0  151.4   3.7221   4.7 ------	UNKNOWN                       
     76.1788 -50.0803    2.3  55.9  173.6   5.9887   4.9 ------	UNKNOWN                       
    129.3093  52.6510    2.7  58.8  -26.0   5.7659   4.3 ------	UNKNOWN                       
    

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

    Time interval of the image:
    -17.800000 85.656000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.5006 -40.6800    4.4  40.0  120.3  -1.1724  -2.6    7.6	Vela X-1                      
    124.7505 -31.8752    2.7  28.3  127.3   0.7470   4.2 ------	UNKNOWN                       
     86.3756  18.9070    0.9  37.3  -85.2   4.1414  12.7 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    341.700600 917.600590
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    254.5469  35.2390    7.9  35.8   14.4  -0.7912  -1.5    7.6	Her X-1                       
    197.5679 -18.1973    2.4  46.4  152.8   5.6705   4.9 ------	UNKNOWN                       
    277.4616  45.7238    3.2  53.8    0.8   4.6113   3.5 ------	UNKNOWN                       
    280.0361  51.0117    3.4  55.5   -5.6   4.3165   3.4 ------	UNKNOWN                       
    286.5975  60.8534    3.9  59.6  -17.1   8.1023   3.0 ------	UNKNOWN                       
    160.7685  -2.1915    5.2  58.7 -159.2   7.4794   2.2 ------	UNKNOWN                       
    166.9836  13.5446    3.2  46.0 -145.0   3.5261   3.7 ------	UNKNOWN                       
    165.7098  19.1814    3.7  45.3 -137.0   3.3366   3.1 ------	UNKNOWN                       
    
    Plot creation:
    Sat May 30 13:24:36 EDT 2015