batgrbproduct Analysis for Trigger=349450

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Jan 19 17:38:38 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger349450
======================================================================

  Trigger: 00349450      Segment: 000

  BAT Trigger Time: 261674408   [s; MET]
      Trigger Stop: 261674728   [s; MET]
               UTC: 2009-04-17T15:20:03.333200    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 209.706264668258   Dec: 47.000469086625  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    9.81
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    9.81

  Flight Position:   [ source = BAT ]
    RA: 209.706264668258   Dec: 47.000469086625  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew image ]
    RA: 209.706   Dec: 47.0005  [deg; J2000]
        { 13h 58m 49.4s , +47d 00' 01.8" }
        +/- 1.85165129361 [arcmin] (estimated 90% radius based on SNR)
    SNR: 12.6167577658
 
 
  Angular difference between Flight and Ground position is 0.010988 arcmin
 
  Partial Coding Fraction: 0.9453125    [ including projection effects ]

  Duration
     T90: 266.940000027418 +/- 35.3896461975869
        Measured from: 332.803999990225
                   to: 599.744000017643     [s; relative to TRIGTIME]
     T50: 146.280000001192 +/- 30.9583074703426
        Measured from: 386.011999994516
                   to: 532.291999995708     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 409.699999988079     
                   to: 410.699999988079     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 318.375999987125     
                   to: 627.743999987841     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.452705   1.437020   1.039667   0.241893
           0.084908   0.087772   0.077696   0.068468 [error]
 Peak      0.017143   0.013875   0.007839   0.004109
           0.004912   0.005006   0.004361   0.003855 [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 4.07e-07 6.18e-07 7.03e-07 1.53e-06 2.18e-06 3.25e-06   erg/cm2
              Error 4.45e-08 4.08e-08 7.75e-08 3.55e-07 1.73e-07 4.22e-07   erg/cm2
Peak flux Power-law 1.29e-01 9.78e-02 4.96e-02 3.60e-02 2.93e-01 3.12e-01   ph/cm2/s
              Error 6.38e-02 3.79e-02 3.30e-02 5.39e-02 1.10e-01 1.23e-01   ph/cm2/s
 
Fluence   Cutoff-PL 4.12e-07 6.19e-07 6.97e-07 1.40e-06 2.19e-06 3.12e-06   erg/cm2
              Error 3.15e-08 4.08e-08 7.67e-08 -------- 1.69e-07 5.24e-07   erg/cm2
Peak flux Cutoff-PL 1.67e-01 1.28e-01 4.82e-02 3.34e-02 2.91e-01 2.92e-01   ph/cm2/s
              Error -------- -------- 3.16e-02 5.35e-02 1.10e-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    1.814    0.136    -      -           7.67e-04 5.93e-05   60.810 57
CPL   2.524    0.138     179.8   -0.0      3.58e-04 0.00e+00   59.560 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.980    0.766    -      -           1.97e-03 1.01e-03   72.690 57
CPL  -5.027    0.000      25.8    4.9      3.68e+02 0.00e+00   66.860 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: 269.504000 sec.
T50 in the 50-300 keV band: 140.544000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  309.368  318.376  627.744
T90   266.940  332.804  599.744
T50   146.280  386.012  532.292
Peak    1.000  409.700  410.700
  • 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
    209.706 47.001 0.000 18.903 18.099 3.995 12.617 TRIG_00349450
     
    Image time interval: -239.000 to 336.000 [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  318.376 sec. to  627.744 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.81356     ( -0.1341   0.137419 )
    Norm@50keV  : 7.66940E-04    ( -5.98188e-05   5.87748e-05 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          60.81 using 59 PHA bins.
    # Reduced chi-squared =          1.067 for     57 degrees of freedom 
    # Null hypothesis probability =   3.404404e-01
     
    Photon flux (15-150 keV)    in 309.4 sec: 0.106243 ( -0.00711587  0.0071296 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.18355e-06 ( -1.72245e-07  1.74529e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from  318.376 sec. to  627.744 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.52388     ( -0.140361   0.135232 )
    Epeak [keV] : 179.780      ( -9999.35 -9999.36 )
    Norm@50keV  : 3.57902E-04    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.56 using 59 PHA bins.
    # Reduced chi-squared =          1.064 for     56 degrees of freedom 
    # Null hypothesis probability =   3.474051e-01
     
    Photon flux (15-150 keV)    in 309.4 sec: 0.106388 ( -0.0073748  0.006997 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.18501e-06 ( -1.73524e-07  1.65192e-07 ) ergs/cm2
     
    
    Band function
    Time interval is from  318.376 sec. to  627.744 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.43161   ( 1.44847   1.44847 )
    beta        : -1.81297    ( -0.137464   0.134012 )
    Epeak [keV] : 21.2047      ( -18.229 -18.229 )
    Norm@50keV   : 1.81384E-03    ( -0.000880528   0.0624402 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          60.81 using 59 PHA bins.
    # Reduced chi-squared =          1.106 for     55 degrees of freedom 
    # Null hypothesis probability =   2.746753e-01
     
    Photon flux (15-150 keV)    in 309.4 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]    : 11.1876  (  )
    R^2/D10^2   : 3.05806E-02  (   )
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         149.76 using 59 PHA bins.
    # Reduced chi-squared =         2.6273 for     57 degrees of freedom 
    # Null hypothesis probability =   2.889383e-10
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.482e-07   2.879e-08
    25- 50  7.172e-07   5.585e-08
    50-150  5.136e-07   8.601e-08
    15-150  1.479e-06   1.170e-07
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 104.805       (-25.6942      51.3794)
    Norm        : 0.457705       (-0.0449392     0.0476818)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.63 using 59 PHA bins.
    # Reduced chi-squared =          1.222 for     57 degrees of freedom 
    # Null hypothesis probability =   1.216683e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.701e-07   3.960e-08
    25- 50  6.459e-07   5.090e-08
    50-150  1.074e-06   3.431e-07
    15-150  2.090e-06   3.923e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 5.63662        (-0.847806      0.951413)
    R1^2/D10^2  : 0.322029        (-0.14664      0.307806)
    kT2 [keV]   : 26.3581        (-5.04939      8.30614)
    R2^2/D10^2  : 1.14690E-03    (-0.000671016   0.00125502)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.16 using 59 PHA bins.
    # Reduced chi-squared =          1.076 for     55 degrees of freedom 
    # Null hypothesis probability =   3.262227e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.240e-07   8.908e-08
    25- 50  5.741e-07   1.027e-07
    50-150  1.260e-06   3.679e-07
    15-150  2.258e-06   5.165e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from  409.700 sec. to  410.700 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.98042     ( -0.722189   0.809983 )
    Norm@50keV  : 1.97128E-03    ( -0.00102612   0.000995049 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          72.69 using 59 PHA bins.
    # Reduced chi-squared =          1.275 for     57 degrees of freedom 
    # Null hypothesis probability =   7.863088e-02
     
    Photon flux (15-150 keV)    in 1 sec: 0.293061 ( -0.110276  0.110401 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.81615e-08 ( -8.37396e-09  9.56668e-09 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from  409.700 sec. to  410.700 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: -5.02724     (     )
    Epeak [keV] : 25.8275      ( -4.46184 5.3358 )
    Norm@50keV  : 367.880    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          66.86 using 59 PHA bins.
    # Reduced chi-squared =          1.194 for     56 degrees of freedom 
    # Null hypothesis probability =   1.517703e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.292142 0.291086 (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.10558e-16 ( 0  0 ) ergs/cm2
     
    
    Band function
    Time interval is from  409.700 sec. to  410.700 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 5.00000   ( -3.21109   -5 )
    beta        : -7.06107    ( 6.92171   4.5275 )
    Epeak [keV] : 25.8730      ( -4.0882 4.63199 )
    Norm@50keV   : 381.291    ( -125.202   866.32 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          66.59 using 59 PHA bins.
    # Reduced chi-squared =          1.211 for     55 degrees of freedom 
    # Null hypothesis probability =   1.359468e-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]    : 6.31266  (-1.44606  2.00804)
    R^2/D10^2   : 0.901837  (-0.895224   1.68728)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.90 using 59 PHA bins.
    # Reduced chi-squared =          1.226 for     57 degrees of freedom 
    # Null hypothesis probability =   1.172642e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.118e-09   3.154e-09
    25- 50  5.690e-09   3.782e-09
    50-150  6.388e-10   5.770e-10
    15-150  1.145e-08   7.570e-09
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 41.2406       (-25.9865      -41.1887)
    Norm        : 1.82809       (-1.00715     2.59581)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          72.95 using 59 PHA bins.
    # Reduced chi-squared =          1.280 for     57 degrees of freedom 
    # Null hypothesis probability =   7.568865e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.240e-09   2.680e-09
    25- 50  5.652e-09   3.732e-09
    50-150  4.520e-09   3.797e-09
    15-150  1.441e-08   9.660e-09
    
    Double BB
    R1^2/D10^2  : 4.84804E-05        (-3.85965e-05      0.00246318)
    kT2 [keV]   : 6.03483        (-1.36269      1.73752)
    R2^2/D10^2  : 1.02828    (-0.707938   1.99421)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.90 using 59 PHA bins.
    #Fit statistic : Chi-Squared =          65.77 using 59 PHA bins.
    #Fit statistic : Chi-Squared =          65.73 using 59 PHA bins.
    # Reduced chi-squared =          1.271 for     55 degrees of freedom 
    # Reduced chi-squared =          1.196 for     55 degrees of freedom 
    # Reduced chi-squared =          1.195 for     55 degrees of freedom 
    # Null hypothesis probability =   8.503706e-02
    # Null hypothesis probability =   1.517506e-01
    # Null hypothesis probability =   1.524276e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.097e-09   3.070e-03
    25- 50  5.761e-09   3.052e-02
    50-150  6.687e-10   7.325e-01
    15-150  1.153e-08   6.965e-01
    

    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: 1.93293     ( -0.530287   0.63337 )
    Norm@50keV  : 7.86595E-04    ( -0.000295944   0.000263847 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          64.15 using 59 PHA bins.
    # Reduced chi-squared =          1.125 for     57 degrees of freedom 
    # Null hypothesis probability =   2.402196e-01
     
    Photon flux (15-150 keV)    in 17.72 sec: 0.114496 ( -0.0282146  0.0282156 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.28201e-07 ( -4.23515e-08  4.53035e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.92138     ( -1.54574   7.10543e-15 )
    Epeak [keV] : 280.693      (   )
    Norm@50keV  : 2.54592E-04    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          61.51 using 59 PHA bins.
    # Reduced chi-squared =          1.098 for     56 degrees of freedom 
    # Null hypothesis probability =   2.853775e-01
     
    Photon flux (15-150 keV)    in 17.72 sec: 0.114405 ( -0.0281759  0.028167 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.2697e-07 ( -4.10512e-08  2.41584e-08 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.60066   ( 1.60071   1.60071 )
    beta        : -1.93294    ( 1.93311   0.53023 )
    Epeak [keV] : 11.3778      ( -11.375 -11.375 )
    Norm@50keV   : 1.90639E-03    ( -0.00190666   0.0409848 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          64.15 using 59 PHA bins.
    # Reduced chi-squared =          1.166 for     55 degrees of freedom 
    # Null hypothesis probability =   1.864053e-01
     
    Photon flux (15-150 keV)    in 17.72 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)  = 6.18e-07
    S(50-100 keV) = 7.03e-07
    

    T90 vs. Hardness ratio plot

    T90                                   = 266.940000027418 sec.
    Hardness ratio (energy fluence ratio) = 1.13754
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 0.989203
    Count Ratio (50-100 keV) / (15-25 keV) = 0.715677
    

    Mask shadow pattern

    IMX = 0.325497189204, IMY = -0.10638003043
    

    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:
    -239.000000 318.376000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    254.4731  35.4002    4.7  53.3    5.0   2.8492   2.5    3.5	Her X-1                       
    209.6969  47.0072    1.0  18.9   18.1   3.7318  12.1 ------	UNKNOWN                       
    215.8100  55.3435    2.8  21.1   -8.2   1.3152   4.2 ------	UNKNOWN                       
    111.7201  31.4564    3.2  53.7 -154.4   3.6750   3.6 ------	UNKNOWN                       
    294.8754  75.1889    3.4  47.0  -53.0   6.0351   3.4 ------	UNKNOWN                       
    

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

    Time interval of the image:
    318.376000 336.100590
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    254.4949  35.2991    3.8  53.4    5.0   0.5001   3.1    3.2	Her X-1                       
    275.5954  88.9970    1.9  39.5  -70.1   0.6801   6.1 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    376.100590 963.095200
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    254.4220  35.3145    1.2  35.1   -1.4   4.2340   9.3    2.4	Her X-1                       
    158.6473  34.1156    2.7  40.1  175.8   1.9586   4.3 ------	UNKNOWN                       
    209.6975  47.0107    0.7   0.0 -156.4   5.0072  16.3 ------	UNKNOWN                       
    136.9516  30.0991    3.2  57.2 -173.8   5.4999   3.6 ------	UNKNOWN                       
    252.9744  51.2439    2.9  28.2  -29.2   1.3404   3.9 ------	UNKNOWN                       
    128.1843  35.8053    3.5  59.4 -163.2   9.1257   3.3 ------	UNKNOWN                       
    
    Plot creation:
    Wed Nov 25 14:46:13 EST 2015