batgrbproduct Analysis for Trigger=100585

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Jan 22 23:29:02 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger100585
======================================================================

  Trigger: 00100585      Segment: 000

  BAT Trigger Time: 125503577.28   [s; MET]
      Trigger Stop: 125503578.304   [s; MET]
               UTC: 2004-12-23T14:06:17.956380    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 100.120286808231   Dec: -37.0297252139607  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    17
     Image Trigger?:     NO
     Rate S/N Ratio:     86.6083136886985  [ if not an image trigger ]
     Image S/N Ratio:    17

  Flight Position:   [ source = BAT ]
    RA: 100.120286808231   Dec: -37.0297252139607  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 100.185640054566   Dec: -37.072204340127  [deg; J2000]  
        { 06h 40m 44.6s , -37d 04' 19.9" }
         +/- 0.493443667020262 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.0984947176852317 [arcmin] (formal 1-sigma fit error)
    SNR: 83.4354109356942
 
  Angular difference between Flight and Ground position is 4.036077 arcmin
 
  Partial Coding Fraction: 0.4765625    [ including projection effects ]

  Duration
     T90: 109.060000002384 +/- 1.80393348808729
        Measured from: 1.76399999856949
                   to: 110.824000000954     [s; relative to TRIGTIME]
     T50: 29.1960000097752 +/- 0.611476899528696
        Measured from: 19.1599999964237
                   to: 48.3560000061989     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 35.0119999945164     
                   to: 36.0119999945164     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -10.5359999984503     
                   to: 145.944000005722     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     4.922442   8.232876   8.249675   2.526461
           0.090361   0.096641   0.089010   0.071964 [error]
 Peak      0.164359   0.310417   0.383767   0.130573
           0.009761   0.012276   0.013500   0.010068 [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 1.52e-06 3.47e-06 6.24e-06 2.66e-05 1.70e-05 3.78e-05   erg/cm2
              Error 5.76e-08 7.69e-08 1.04e-07 1.07e-06 2.72e-07 1.09e-06   erg/cm2
Peak flux Power-law 1.54e+00 2.22e+00 2.38e+00 4.73e+00 7.60e+00 1.09e+01   ph/cm2/s
              Error 1.29e-01 1.13e-01 1.03e-01 4.49e-01 3.10e-01 5.08e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.46e-06 3.48e-06 6.34e-06 2.28e-05 1.69e-05 3.41e-05   erg/cm2
              Error 6.08e-08 7.81e-08 1.35e-07 2.68e-06 2.83e-07 3.62e-06   erg/cm2
Peak flux Cutoff-PL 1.45e+00 2.24e+00 2.45e+00 3.75e+00 7.55e+00 9.89e+00   ph/cm2/s
              Error 1.65e-01 1.19e-01 1.32e-01 9.14e-01 3.16e-01 1.04e+00   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    1.152    0.030    -      -           1.06e-02 1.78e-04   33.280 57
CPL   1.016    0.095     455.2 1449.1      1.20e-02 1.34e-03   29.710 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.901    0.070    -      -           6.62e-02 2.69e-03   44.420 57
CPL   0.669    0.246     339.6    0.0      8.36e-02 0.00e+00   42.190 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: 101.824000 sec.
T50 in the 50-300 keV band: 25.984000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  156.480  -10.536  145.944
T90   109.060    1.764  110.824
T50    29.196   19.160   48.356
Peak    1.000   35.012   36.012
  • 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
      100.1856   -37.0722   0.0023    26.6649    79.5061        27.9825398     83.435 TRIG_00100585                 
     
    Foreground time interval of the image:
    -10.536 145.944 (delta_t = 156.480 [sec])
    Background time interval of the image:
    -299.280 -10.536 (delta_t = 288.744 [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  -10.536 sec. to  145.944 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.15246     ( -0.0304377   0.0303074 )
    Norm@50keV  : 1.05568E-02    ( -0.000178385   0.000178021 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          33.28 using 59 PHA bins.
    # Reduced chi-squared =         0.5838 for     57 degrees of freedom 
    # Null hypothesis probability =   9.949427e-01
     
    Photon flux (15-150 keV)    in 156.5 sec: 1.23149 ( -0.0227698  0.0228318 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.69951e-05 ( -2.72064e-07  2.72135e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from  -10.536 sec. to  145.944 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.01559     ( -0.126634   0.0628034 )
    Epeak [keV] : 455.175      ( -185.995 2712.23 )
    Norm@50keV  : 1.19605E-02    ( -0.00124674   0.00142593 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          29.71 using 59 PHA bins.
    # Reduced chi-squared =         0.5305 for     56 degrees of freedom 
    # Null hypothesis probability =   9.985044e-01
     
    Photon flux (15-150 keV)    in 156.5 sec: 1.21881 ( -0.02513  0.02526 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.6922e-05 ( -2.82795e-07  2.82326e-07 ) ergs/cm2
     
    
    Band function
    Time interval is from  -10.536 sec. to  145.944 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -0.838098   ( -0.282923   2.26393 )
    beta        : -1.20586    ( 1.20501   0.0559531 )
    Epeak [keV] : 180.072      ( -80.3999 1827.93 )
    Norm@50keV   : 1.49564E-02    ( -0.00399494   0.0396363 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          29.19 using 59 PHA bins.
    # Reduced chi-squared =         0.5307 for     55 degrees of freedom 
    # Null hypothesis probability =   9.983559e-01
     
    Photon flux (15-150 keV)    in 156.5 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]    : 22.8464  (  )
    R^2/D10^2   : 3.66619E-02  (   )
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         648.63 using 59 PHA bins.
    # Reduced chi-squared =         11.380 for     57 degrees of freedom 
    # Null hypothesis probability =  3.036282e-101
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.445e-07   1.909e-08
    25- 50  2.943e-06   7.825e-08
    50-150  1.148e-05   2.582e-07
    15-150  1.496e-05   2.614e-07
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 199.363       (      )
    Norm        : 5.46137       (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         637.09 using 59 PHA bins.
    # Reduced chi-squared =         11.177 for     57 degrees of freedom 
    # Null hypothesis probability =   5.967353e-99
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.128e-06   3.834e-08
    25- 50  4.094e-06   7.434e-08
    50-150  8.979e-06   1.690e-07
    15-150  1.520e-05   2.723e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 9.24372        (-0.710521      0.753603)
    R1^2/D10^2  : 0.391444        (-0.0829166      0.112718)
    kT2 [keV]   : 36.7645        (-2.51679      3.17738)
    R2^2/D10^2  : 6.74768E-03    (-0.00157806   0.00178292)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          41.89 using 59 PHA bins.
    # Reduced chi-squared =         0.7617 for     55 degrees of freedom 
    # Null hypothesis probability =   9.032936e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.228e-06   7.911e-08
    25- 50  3.586e-06   1.260e-07
    50-150  1.209e-05   4.100e-07
    15-150  1.690e-05   4.382e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from   35.012 sec. to   36.012 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.901184     ( -0.0705351   0.0699371 )
    Norm@50keV  : 6.62464E-02    ( -0.00269562   0.00268935 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          44.42 using 59 PHA bins.
    # Reduced chi-squared =         0.7793 for     57 degrees of freedom 
    # Null hypothesis probability =   8.876615e-01
     
    Photon flux (15-150 keV)    in 1 sec: 7.60369 ( -0.309735  0.309842 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 7.43129e-07 ( -3.30814e-08  3.3147e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   35.012 sec. to   36.012 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.669458     ( -0.281207   0.210691 )
    Epeak [keV] : 339.624      (   )
    Norm@50keV  : 8.36057E-02    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          42.19 using 59 PHA bins.
    # Reduced chi-squared =         0.7533 for     56 degrees of freedom 
    # Null hypothesis probability =   9.141764e-01
     
    Photon flux (15-150 keV)    in 1 sec: 7.54661 ( -0.31619  0.3162 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 7.3751e-07 ( -3.4265e-08  3.4138e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   35.012 sec. to   36.012 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 5.00000   ( -5   -5 )
    beta        : -0.955533    ( -0.0782442   0.0776813 )
    Epeak [keV] : 28.6158      ( -5.38962 3.8039 )
    Norm@50keV   : 1898.68    ( -75.7119   4381.28 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          39.28 using 59 PHA bins.
    # Reduced chi-squared =         0.7142 for     55 degrees of freedom 
    # Null hypothesis probability =   9.458549e-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]    : 24.0183  (  )
    R^2/D10^2   : 0.215125  (   )
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         134.34 using 59 PHA bins.
    # Reduced chi-squared =         2.3569 for     57 degrees of freedom 
    # Null hypothesis probability =   3.457906e-08
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.201e-08   1.825e-09
    25- 50  1.223e-07   7.550e-09
    50-150  5.256e-07   2.965e-08
    15-150  6.699e-07   3.245e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 199.363       (      )
    Norm        : 29.6431       (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         262.99 using 59 PHA bins.
    # Reduced chi-squared =         4.6139 for     57 degrees of freedom 
    # Null hypothesis probability =   3.191277e-28
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  7.381e-08   3.235e-09
    25- 50  1.420e-07   6.400e-09
    50-150  3.114e-07   1.355e-08
    15-150  5.272e-07   2.400e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 7.98750        (-1.25199      1.52999)
    R1^2/D10^2  : 3.12406        (-1.28009      2.2936)
    kT2 [keV]   : 35.4912        (-4.06904      6.02999)
    R2^2/D10^2  : 5.83111E-02    (-0.022013   0.0269327)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          36.88 using 59 PHA bins.
    # Reduced chi-squared =         0.6706 for     55 degrees of freedom 
    # Null hypothesis probability =   9.712147e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.630e-08   7.615e-09
    25- 50  1.305e-07   1.590e-08
    50-150  5.697e-07   6.480e-08
    15-150  7.465e-07   8.460e-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: 1.15246     ( -0.0304377   0.0303074 )
    Norm@50keV  : 1.05568E-02    ( -0.000178385   0.000178021 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          33.28 using 59 PHA bins.
    # Reduced chi-squared =         0.5838 for     57 degrees of freedom 
    # Null hypothesis probability =   9.949427e-01
     
    Photon flux (15-150 keV)    in 156.5 sec: 1.23149 ( -0.0227698  0.0228318 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.69951e-05 ( -2.72064e-07  2.72135e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.01559     ( -0.126634   0.0628034 )
    Epeak [keV] : 455.175      ( -185.995 2712.23 )
    Norm@50keV  : 1.19605E-02    ( -0.00124674   0.00142593 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          29.71 using 59 PHA bins.
    # Reduced chi-squared =         0.5305 for     56 degrees of freedom 
    # Null hypothesis probability =   9.985044e-01
     
    Photon flux (15-150 keV)    in 156.5 sec: 1.21881 ( -0.02513  0.02526 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.6922e-05 ( -2.82795e-07  2.82326e-07 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -0.838098   ( -0.282923   2.26392 )
    beta        : -1.20586    ( 1.20501   0.0559531 )
    Epeak [keV] : 180.072      ( -80.3999 1827.93 )
    Norm@50keV   : 1.49564E-02    ( -0.00399494   0.0405201 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          29.19 using 59 PHA bins.
    # Reduced chi-squared =         0.5307 for     55 degrees of freedom 
    # Null hypothesis probability =   9.983559e-01
     
    Photon flux (15-150 keV)    in 156.5 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)  = 3.47e-06
    S(50-100 keV) = 6.24e-06
    

    T90 vs. Hardness ratio plot

    T90                                   = 109.060000002384 sec.
    Hardness ratio (energy fluence ratio) = 1.79827
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.67252
    Count Ratio (50-100 keV) / (15-25 keV) = 1.67593
    

    Mask shadow pattern

    IMX = 9.146238536026967E-02, IMY = -4.937803729858381E-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:
    -299.280000 -10.536000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.5156 -40.5550    0.8  22.5  148.7   2.8536  14.4    0.6	Vela X-1                      
    170.3444 -60.6017    2.8  24.3 -132.4   0.8385   4.2    1.5	Cen X-3                       
    186.6427 -62.7649    0.4  30.4 -121.0   7.1526  30.6    0.5	GX 301-2                      
    123.6603 -36.7281    2.1  24.2  123.7   1.1511   5.5 ------	UNKNOWN                       
    172.6478 -17.7866    3.3  57.0 -179.1   3.6186   3.6 ------	UNKNOWN                       
    127.9382 -78.0187    2.6  17.4  -70.3   0.7825   4.3 ------	UNKNOWN                       
    183.5161 -54.5673    2.4  33.4 -135.8   1.0397   4.7 ------	UNKNOWN                       
    183.5640 -53.3616    2.1  34.1 -137.5   1.3039   5.5 ------	UNKNOWN                       
    

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

    Time interval of the image:
    -10.536000 145.944000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.2830 -40.5611    5.1  22.4  148.3   0.5455   2.3   11.2	Vela X-1                      
    170.0185 -60.6069    6.2  24.1 -132.5   0.4552   1.8    8.8	Cen X-3                       
    186.6291 -62.8720  680.4  30.3 -120.8   0.0045   0.0    6.2	GX 301-2                      
    100.1856 -37.0722    0.1  26.7   79.5  27.9830  83.6 ------	UNKNOWN                       
    226.0157 -67.6348    3.1  41.0  -98.3   3.1733   3.7 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    -299.280000 302.787400
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.4999 -40.5631    0.7  22.5  148.7   6.3132  17.3    1.4	Vela X-1                      
    170.2536 -60.6085    2.6  24.2 -132.4   1.8559   4.5    2.0	Cen X-3                       
    186.6385 -62.7671    0.3  30.4 -121.0  16.3830  34.9    0.5	GX 301-2                      
    100.1870 -37.0735    0.2  26.7   79.5  28.9173  61.2 ------	UNKNOWN                       
     56.8480 -50.9427    2.8  35.0   12.8   2.0170   4.2 ------	UNKNOWN                       
     33.8573 -51.4803    2.9  45.1   -3.2   2.8371   4.0 ------	UNKNOWN                       
    183.4550 -54.6179    3.7  33.3 -135.8   1.4708   3.1 ------	UNKNOWN                       
    
    Plot creation:
    Sun May 31 17:51:19 EDT 2015