batgrbproduct Analysis for Trigger=373674

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Jan 19 13:26:35 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger373674
======================================================================

  Trigger: 00373674      Segment: 000

  BAT Trigger Time: 278067366.464   [s; MET]
      Trigger Stop: 278067367.488   [s; MET]
               UTC: 2009-10-24T08:56:01.265340    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 339.206654153892   Dec: 56.8745686910293  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.06
     Image Trigger?:     NO
     Rate S/N Ratio:     19.3907194296653  [ if not an image trigger ]
     Image S/N Ratio:    9.06

  Flight Position:   [ source = BAT ]
    RA: 339.206654153892   Dec: 56.8745686910293  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 339.238898339272   Dec: 56.8853563019734  [deg; J2000]  
        { 22h 36m 57.3s , +56d 53' 07.3" }
         +/- 0.964013417042147 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.302222774092929 [arcmin] (formal 1-sigma fit error)
    SNR: 32.0521258577268
 
  Angular difference between Flight and Ground position is 1.239503 arcmin
 
  Partial Coding Fraction: 0.390625    [ including projection effects ]

  Duration
     T90: 112.27999997139 +/- 13.7684445322825
        Measured from: -5.69999998807907
                   to: 106.579999983311     [s; relative to TRIGTIME]
     T50: 48.5239999294281 +/- 4.76534155566373
        Measured from: 3.15200001001358
                   to: 51.6759999394417     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.75600004196167     
                   to: 1.75600004196167     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -15.2039999961853     
                   to: 134.98400002718     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.644294   2.808311   2.731903   1.120494
           0.112252   0.118203   0.107217   0.095590 [error]
 Peak      0.054027   0.067451   0.099847   0.052562
           0.009811   0.010683   0.010445   0.009120 [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 5.73e-07 1.26e-06 2.19e-06 8.80e-06 5.98e-06 1.28e-05   erg/cm2
              Error 5.40e-08 6.94e-08 1.02e-07 9.78e-07 2.63e-07 1.01e-06   erg/cm2
Peak flux Power-law 5.04e-01 6.39e-01 5.91e-01 9.57e-01 2.06e+00 2.69e+00   ph/cm2/s
              Error 1.37e-01 1.04e-01 8.16e-02 2.93e-01 2.77e-01 3.57e-01   ph/cm2/s
 
Fluence   Cutoff-PL 5.74e-07 1.26e-06 2.19e-06 8.71e-06 5.98e-06 1.27e-05   erg/cm2
              Error -------- 6.95e-08 -------- -------- -------- --------   erg/cm2
Peak flux Cutoff-PL 4.87e-01 6.41e-01 6.00e-01 8.65e-01 2.05e+00 2.59e+00   ph/cm2/s
              Error 1.68e-01 1.07e-01 9.85e-02 4.22e-01 2.88e-01 5.04e-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    1.206    0.080    -      -           3.93e-03 1.71e-04   45.580 57
CPL   1.201    0.133    9999.1    0.0      3.95e-03 3.72e-04   45.660 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.113    0.231    -      -           1.77e-02 2.27e-03   61.520 57
CPL   3.213    0.661     324.2    0.0      9.47e-04 0.00e+00   58.280 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: 67.904000 sec.
T50 in the 50-300 keV band: 38.912000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  150.188  -15.204  134.984
T90   112.280   -5.700  106.580
T50    48.524    3.152   51.676
Peak    1.000    0.756    1.756
  • 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
      339.2389    56.8854   0.0060    44.4231   179.6627         9.2327542     32.052 TRIG_00373674                 
     
    Foreground time interval of the image:
    -15.204 134.984 (delta_t = 150.188 [sec])
    Background time interval of the image:
    -237.363 -15.204 (delta_t = 222.159 [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 1.024000
    

    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 1.024000
    

    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 1.024000
    

    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  -15.204 sec. to  134.984 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.20592     ( -0.0800151   0.0790486 )
    Norm@50keV  : 3.93259E-03    ( -0.00017143   0.000170644 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.58 using 59 PHA bins.
    # Reduced chi-squared =         0.7997 for     57 degrees of freedom 
    # Null hypothesis probability =   8.614815e-01
     
    Photon flux (15-150 keV)    in 150.2 sec: 0.461994 ( -0.0218751  0.0219544 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.98266e-06 ( -2.62395e-07  2.6287e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from  -15.204 sec. to  134.984 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.20131     ( -0.135427   0.129975 )
    Epeak [keV] : 9999.12      (   )
    Norm@50keV  : 3.95112E-03    ( -0.000169037   0.000574503 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.66 using 59 PHA bins.
    # Reduced chi-squared =         0.8153 for     56 degrees of freedom 
    # Null hypothesis probability =   8.367020e-01
     
    Photon flux (15-150 keV)    in 150.2 sec: 0.461895 ( -0.021812  0.021803 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.98245e-06 ( 0  0 ) ergs/cm2
     
    
    Band function
    Time interval is from  -15.204 sec. to  134.984 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -0.937226   ( 0.938233   0.938233 )
    beta        : -1.20555    ( 1.20591   0.0800214 )
    Epeak [keV] : 52.2132      ( -51.3644 473.126 )
    Norm@50keV   : 7.36385E-03    ( -0.00266334   0 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.58 using 59 PHA bins.
    # Reduced chi-squared =         0.8288 for     55 degrees of freedom 
    # Null hypothesis probability =   8.133378e-01
     
    Photon flux (15-150 keV)    in 150.2 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]    : 21.7674  (  )
    R^2/D10^2   : 1.55792E-02  (   )
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         196.09 using 59 PHA bins.
    # Reduced chi-squared =         3.4402 for     57 degrees of freedom 
    # Null hypothesis probability =   3.675240e-17
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.062e-07   1.990e-08
    25- 50  1.083e-06   7.758e-08
    50-150  3.834e-06   2.433e-07
    15-150  5.124e-06   2.644e-07
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 199.363       (      )
    Norm        : 1.99286       (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         115.09 using 59 PHA bins.
    # Reduced chi-squared =         2.0191 for     57 degrees of freedom 
    # Null hypothesis probability =   8.335304e-06
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  7.454e-07   3.567e-08
    25- 50  1.434e-06   6.849e-08
    50-150  3.145e-06   1.630e-07
    15-150  5.324e-06   2.478e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 8.46327        (-1.07189      1.18836)
    R1^2/D10^2  : 0.236918        (-0.083355      0.139791)
    kT2 [keV]   : 41.0681        (-6.28161      10.0479)
    R2^2/D10^2  : 1.81883E-03    (-0.000828475   0.00118619)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          41.28 using 59 PHA bins.
    # Reduced chi-squared =         0.7506 for     55 degrees of freedom 
    # Null hypothesis probability =   9.147607e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.374e-07   9.012e-08
    25- 50  1.323e-06   1.503e-07
    50-150  4.248e-06   6.008e-07
    15-150  6.108e-06   7.412e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from    0.756 sec. to    1.756 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.11344     ( -0.233506   0.228855 )
    Norm@50keV  : 1.77232E-02    ( -0.00227774   0.00226682 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          61.52 using 59 PHA bins.
    # Reduced chi-squared =          1.079 for     57 degrees of freedom 
    # Null hypothesis probability =   3.175392e-01
     
    Photon flux (15-150 keV)    in 1 sec: 2.05856 ( -0.275669  0.277549 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.84513e-07 ( -2.49464e-08  2.50782e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    0.756 sec. to    1.756 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 3.21279     ( -0.971352   0.349916 )
    Epeak [keV] : 324.165      ( -494.077 -494.077 )
    Norm@50keV  : 9.47397E-04    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          58.28 using 59 PHA bins.
    # Reduced chi-squared =          1.041 for     56 degrees of freedom 
    # Null hypothesis probability =   3.915712e-01
     
    Photon flux (15-150 keV)    in 1 sec: 2.04633 ( -0.29104  0.28426 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.84125e-07 ( -2.5355e-08  2.5311e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from    0.756 sec. to    1.756 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -2.06006   ( 0.822496   2.06006 )
    beta        : -1.11344    ( -0.228517   0.234156 )
    Epeak [keV] : 456.563      ( -456.563 -456.563 )
    Norm@50keV   : 2.40883    ( -0.309582   0.308094 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          61.52 using 59 PHA bins.
    # Reduced chi-squared =          1.119 for     55 degrees of freedom 
    # Null hypothesis probability =   2.541321e-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]    : 23.7280  (-3.70291  4.70367)
    R^2/D10^2   : 5.63525E-02  (-0.0243985   0.0405621)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          72.18 using 59 PHA bins.
    # Reduced chi-squared =          1.266 for     57 degrees of freedom 
    # Null hypothesis probability =   8.486613e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.662e-09   1.551e-09
    25- 50  3.125e-08   6.710e-09
    50-150  1.312e-07   2.883e-08
    15-150  1.681e-07   3.375e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 200.000       (      )
    Norm        : 8.64052       (-1.1289     1.12878)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          72.95 using 59 PHA bins.
    # Reduced chi-squared =          1.280 for     57 degrees of freedom 
    # Null hypothesis probability =   7.565458e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.151e-08   1.209e-08
    25- 50  4.138e-08   2.315e-08
    50-150  9.074e-08   5.055e-08
    15-150  1.536e-07   8.370e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 3.23419        (-1.30291      3.07462)
    R1^2/D10^2  : 50.4784        (-48.3147      1427.1)
    kT2 [keV]   : 27.1599        (-4.67676      7.05761)
    R2^2/D10^2  : 3.52569E-02    (-0.0182187   0.0290736)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          56.86 using 59 PHA bins.
    # Reduced chi-squared =          1.034 for     55 degrees of freedom 
    # Null hypothesis probability =   4.056258e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.915e-08   1.014e-08
    25- 50  2.828e-08   7.735e-09
    50-150  1.372e-07   3.859e-08
    15-150  1.846e-07   4.470e-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: 1.20592     ( -0.0800151   0.0790486 )
    Norm@50keV  : 3.93259E-03    ( -0.00017143   0.000170644 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.58 using 59 PHA bins.
    # Reduced chi-squared =         0.7997 for     57 degrees of freedom 
    # Null hypothesis probability =   8.614815e-01
     
    Photon flux (15-150 keV)    in 150.2 sec: 0.461994 ( -0.0218751  0.0219544 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.98266e-06 ( -2.62395e-07  2.6287e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.20131     ( -0.135427   0.129984 )
    Epeak [keV] : 9999.12      (   )
    Norm@50keV  : 3.95112E-03    ( -0.000169037   0.000574503 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.66 using 59 PHA bins.
    # Reduced chi-squared =         0.8153 for     56 degrees of freedom 
    # Null hypothesis probability =   8.367020e-01
     
    Photon flux (15-150 keV)    in 150.2 sec: 0.461895 ( -0.021812  0.021803 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.98245e-06 ( 0  0 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -0.937226   ( 0.938233   0.938233 )
    beta        : -1.20555    ( 1.20591   0.0800214 )
    Epeak [keV] : 52.2132      ( -51.3644 442.937 )
    Norm@50keV   : 7.36385E-03    ( -0.00266334   0 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.58 using 59 PHA bins.
    # Reduced chi-squared =         0.8288 for     55 degrees of freedom 
    # Null hypothesis probability =   8.133378e-01
     
    Photon flux (15-150 keV)    in 150.2 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)  = 1.26e-06
    S(50-100 keV) = 2.19e-06
    

    T90 vs. Hardness ratio plot

    T90                                   = 112.27999997139 sec.
    Hardness ratio (energy fluence ratio) = 1.7381
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.70791
    Count Ratio (50-100 keV) / (15-25 keV) = 1.66144
    

    Mask shadow pattern

    IMX = -9.800457962126508E-01, IMY = -5.769424024744253E-03
    

    TIME vs. PHA plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 1.024000
    

    TIME vs. DetID plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 1.024000
    

    100 us light curve (15-350 keV)

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 1.024000
    

    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:
    -237.363410 -15.204000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.6306  22.0083    0.4  37.6   27.6   8.5473  29.1    0.4	Crab                          
     16.3966  37.5830    3.2  39.2  132.8   1.6668   3.6 ------	UNKNOWN                       
    350.3983  42.1682    2.8  49.4  158.3   2.4888   4.2 ------	UNKNOWN                       
    311.5523  61.1619    2.9  51.2 -162.6   1.6922   3.9 ------	UNKNOWN                       
    129.3917  66.6953    3.0  28.3  -82.1   1.0198   3.8 ------	UNKNOWN                       
    247.8017  74.0727    2.2  47.9 -128.8   4.8481   5.1 ------	UNKNOWN                       
    

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

    Time interval of the image:
    -15.204000 134.984000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.5139  22.1123   11.8  37.5   27.7   0.2604   1.0    8.9	Crab                          
    339.2389  56.8853    0.4  44.4  179.7   9.2333  32.1 ------	UNKNOWN                       
    334.0666  70.3952    2.2  38.3 -161.7   1.1187   5.2 ------	UNKNOWN                       
    116.1470  35.7524    2.5  38.3  -24.7   1.0329   4.6 ------	UNKNOWN                       
    269.1386  78.7543    2.3  42.7 -134.9   1.5979   5.0 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    502.836600 962.676000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    254.4795  35.3439    6.9  56.7 -152.7   2.8194   1.7    1.1	Her X-1                       
    121.3323  34.9005    2.7  41.8   43.1   2.8555   4.2 ------	UNKNOWN                       
    185.4123  34.3527    3.3  18.1  -72.6   0.9885   3.5 ------	UNKNOWN                       
    265.9809  43.8055    2.8  57.6 -167.2   5.3619   4.1 ------	UNKNOWN                       
    178.7650   2.7149    3.0  48.3  -50.0   5.9869   3.8 ------	UNKNOWN                       
    
    Plot creation:
    Sun May 31 02:47:24 EDT 2015