batgrbproduct Analysis for Trigger=638217

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Apr 17 09:37:05 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger638217/batgroup_hand_proc
======================================================================

  Trigger: 00638217      Segment: 000

  BAT Trigger Time: 450939184   [s; MET]
      Trigger Stop: 450939248   [s; MET]
               UTC: 2015-04-17T04:52:50.543040    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 186.581957706617   Dec: 15.4327880408579  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    5.96
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    5.96

  Flight Position:   [ source = BAT ]
    RA: 186.581957706617   Dec: 15.4327880408579  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 186.551234122526   Dec: 15.3955821731263  [deg; J2000]  
        { 12h 26m 12.3s , +15d 23' 44.1" }
         +/- 4.13187433039663 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.92254769509508 [arcmin] (formal 1-sigma fit error)
    SNR: 4.00782021280453
 
  Angular difference between Flight and Ground position is 2.853332 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]
     T50: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 64 second)
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.164534   0.154396  -0.030401   0.020173
           0.043460   0.043403   0.038220   0.033844 [error]
 Peak      0.164534   0.154396  -0.030401   0.020173
           0.043460   0.043403   0.038220   0.033844 [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 4.71e-08 4.55e-08 3.07e-08 3.24e-08 1.36e-07 1.56e-07   erg/cm2
              Error 1.72e-08 1.97e-08 2.49e-08 5.50e-08 6.32e-08 9.49e-08   erg/cm2
Peak flux Power-law 2.43e-02 1.31e-02 4.41e-03 1.93e-03 4.28e-02 4.37e-02   ph/cm2/s
              Error 9.03e-03 5.45e-03 3.47e-03 3.04e-03 1.48e-02 1.55e-02   ph/cm2/s
 
Fluence   Cutoff-PL 4.75e-08 5.79e-08 1.02e-08 8.98e-11 1.16e-07 1.16e-07   erg/cm2
              Error 1.96e-08 2.87e-08 2.26e-08 1.31e-08 5.03e-08 5.76e-08   erg/cm2
Peak flux Cutoff-PL 2.38e-02 1.70e-02 1.68e-03 8.05e-06 4.25e-02 4.25e-02   ph/cm2/s
              Error 1.02e-02 7.90e-03 3.29e-03 1.24e-03 1.39e-02 1.39e-02   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    2.567    0.755    -      -           2.09e-04 1.28e-04   71.700 57
CPL  -0.411    0.000      24.8    0.0      2.39e-02 0.00e+00   69.360 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.567    0.755    -      -           2.09e-04 1.28e-04   71.700 57
CPL  -0.411    0.000      24.8    0.0      2.39e-02 0.00e+00   69.360 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   64.000    0.000   64.000
T90    64.000    0.000   64.000
T50    64.000    0.000   64.000
Peak   64.000    0.000   64.000
  • Click here for the BAT GCN circular template

    Image

    Pre-slew 15-350 keV image (Event data; bkg subtracted)

    #   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
      186.5512 +15.3956 0.0477    5.8  169.1       0.3409     4.0  TRIG_00638217       
    ------------------------------------------
     
    Foreground time interval of the image:
      0.000  64.000 (delta_t =  64.000 [sec])
    Background time interval of the image:
    

    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)

    Spectra

    Notes:

    Time averaged spectrum fit using the pre-slew DRM

    Power-law model
    Time interval is from    0.000 sec. to   64.000 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.56666     ( -0.644088   0.866421 )
    Norm@50keV  : 2.09182E-04    ( -0.000121666   0.000134428 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          71.70 using 59 PHA bins.
    # Reduced chi-squared =          1.258 for     57 degrees of freedom 
    # Null hypothesis probability =   9.101594e-02
     
    Photon flux (15-150 keV)    in 64 sec: 4.28205E-02 ( -0.0147497  0.0149207 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.36297e-07 ( -5.79994e-08  6.84051e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    0.000 sec. to   64.000 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: -0.410999     (     )
    Epeak [keV] : 24.8449      (   )
    Norm@50keV  : 2.38708E-02    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.36 using 59 PHA bins.
    # Reduced chi-squared =          1.239 for     56 degrees of freedom 
    # Null hypothesis probability =   1.082871e-01
     
    Photon flux (15-150 keV)    in 64 sec: 4.25137E-02 ( -0.0138404  0.0140501 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.15785e-07 ( -4.55072e-08  5.50144e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from    0.000 sec. to   64.000 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 1.28776   ( -3.75274   -2.12524 )
    beta        : -9.37167    ( 9.37159   19.3568 )
    Epeak [keV] : 26.1104      ( -7.74765 8.78564 )
    Norm@50keV   : 9.46364E-02    ( -0.0945267   978.813 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.32 using 59 PHA bins.
    # Reduced chi-squared =          1.260 for     55 degrees of freedom 
    # Null hypothesis probability =   9.266254e-02
     
    Photon flux (15-150 keV)    in 64 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]    : 6.67177  (-1.92138  2.4982)
    R^2/D10^2   : 0.108295  (-0.108295   0.33912)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.35 using 59 PHA bins.
    # Reduced chi-squared =          1.217 for     57 degrees of freedom 
    # Null hypothesis probability =   1.264406e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.702e-08   2.858e-08
    25- 50  5.857e-08   3.910e-08
    50-150  8.131e-09   7.370e-09
    15-150  1.137e-07   7.578e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 25.8435       (-12.8655      33.0131)
    Norm        : 0.407229       (-0.201193     0.451572)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          70.16 using 59 PHA bins.
    # Reduced chi-squared =          1.231 for     57 degrees of freedom 
    # Null hypothesis probability =   1.131904e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.875e-08   2.943e-08
    25- 50  5.103e-08   3.278e-08
    50-150  2.277e-08   2.131e-08
    15-150  1.225e-07   8.238e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 4.64042        (-4.56676      76.4696)
    R1^2/D10^2  : 0.157747        (-0.158766      -0.158766)
    kT2 [keV]   : 7.65575        (-7.4705      -7.4705)
    R2^2/D10^2  : 4.50801E-02    (-0.0565945   0.384661)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.30 using 59 PHA bins.
    # Reduced chi-squared =          1.260 for     55 degrees of freedom 
    # Null hypothesis probability =   9.288705e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.758e-08   1.838e-07
    25- 50  5.758e-08   8.150e-07
    50-150  1.111e-08   6.614e-07
    15-150  1.163e-07   1.515e-06
    

    Peak spectrum fit

    Power-law model
    Time interval is from    0.000 sec. to   64.000 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.56666     ( -0.644088   0.866421 )
    Norm@50keV  : 2.09182E-04    ( -0.000121666   0.000134428 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          71.70 using 59 PHA bins.
    # Reduced chi-squared =          1.258 for     57 degrees of freedom 
    # Null hypothesis probability =   9.101594e-02
     
    Photon flux (15-150 keV)    in 64 sec: 4.28205E-02 ( -0.0147497  0.0149207 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.36297e-07 ( -5.79994e-08  6.84051e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    0.000 sec. to   64.000 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: -0.410999     (     )
    Epeak [keV] : 24.8449      (   )
    Norm@50keV  : 2.38708E-02    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.36 using 59 PHA bins.
    # Reduced chi-squared =          1.239 for     56 degrees of freedom 
    # Null hypothesis probability =   1.082871e-01
     
    Photon flux (15-150 keV)    in 64 sec: 4.25137E-02 ( -0.0138404  0.0140501 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.15785e-07 ( -4.55072e-08  5.50144e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from    0.000 sec. to   64.000 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 1.28776   ( -3.75274   -2.12524 )
    beta        : -9.37167    ( 9.37159   19.3568 )
    Epeak [keV] : 26.1104      ( -7.74765 8.78564 )
    Norm@50keV   : 9.46364E-02    ( -0.0945267   978.813 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.32 using 59 PHA bins.
    # Reduced chi-squared =          1.260 for     55 degrees of freedom 
    # Null hypothesis probability =   9.266254e-02
     
    Photon flux (15-150 keV)    in 64 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]    : 6.67177  (-1.92138  2.4982)
    R^2/D10^2   : 0.108295  (-0.108295   0.33912)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.35 using 59 PHA bins.
    # Reduced chi-squared =          1.217 for     57 degrees of freedom 
    # Null hypothesis probability =   1.264406e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.702e-08   2.803e-08
    25- 50  5.857e-08   3.702e-08
    50-150  8.131e-09   7.846e-09
    15-150  1.137e-07   7.232e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 25.8435       (-12.8655      33.0131)
    Norm        : 0.407229       (-0.201193     0.451572)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          70.16 using 59 PHA bins.
    # Reduced chi-squared =          1.231 for     57 degrees of freedom 
    # Null hypothesis probability =   1.131904e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.875e-08   3.076e-08
    25- 50  5.103e-08   3.290e-08
    50-150  2.277e-08   2.192e-08
    15-150  1.225e-07   7.640e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 4.64042        (-4.56676      76.4696)
    R1^2/D10^2  : 0.157747        (-0.158766      -0.158766)
    kT2 [keV]   : 7.65575        (-7.4705      -7.4705)
    R2^2/D10^2  : 4.50801E-02    (-0.0565945   0.384661)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.30 using 59 PHA bins.
    # Reduced chi-squared =          1.260 for     55 degrees of freedom 
    # Null hypothesis probability =   9.288705e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.758e-08   2.743e-07
    25- 50  5.758e-08   5.818e-07
    50-150  1.111e-08   7.443e-07
    15-150  1.163e-07   8.637e-07
    

    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: 2.56666     ( -0.644088   0.866421 )
    Norm@50keV  : 2.09182E-04    ( -0.000121666   0.000134428 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          71.70 using 59 PHA bins.
    # Reduced chi-squared =          1.258 for     57 degrees of freedom 
    # Null hypothesis probability =   9.101594e-02
     
    Photon flux (15-150 keV)    in 64 sec: 4.28205E-02 ( -0.0147497  0.0149207 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.36297e-07 ( -5.79994e-08  6.84051e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: -0.410999     (     )
    Epeak [keV] : 24.8449      (   )
    Norm@50keV  : 2.38708E-02    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.36 using 59 PHA bins.
    # Reduced chi-squared =          1.239 for     56 degrees of freedom 
    # Null hypothesis probability =   1.082871e-01
     
    Photon flux (15-150 keV)    in 64 sec: 4.25137E-02 ( -0.0138404  0.0140501 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.15785e-07 ( -4.55072e-08  5.50144e-08 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 1.28776   ( -3.75274   -2.12524 )
    beta        : -9.37167    ( 9.37159   19.3568 )
    Epeak [keV] : 26.1104      ( -7.74765 8.78564 )
    Norm@50keV   : 9.46364E-02    ( -0.0945267   978.813 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.32 using 59 PHA bins.
    # Reduced chi-squared =          1.260 for     55 degrees of freedom 
    # Null hypothesis probability =   9.266254e-02
     
    Photon flux (15-150 keV)    in 64 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)  = 4.55e-08
    S(50-100 keV) = 3.07e-08
    

    T90 vs. Hardness ratio plot

    T90                                   = 64 sec.
    Hardness ratio (energy fluence ratio) = 0.674725
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 0.938384
    Count Ratio (50-100 keV) / (15-25 keV) = -0.18477
    

    Mask shadow pattern

    IMX = -9.957001188351008E-02, IMY = -1.910907965723850E-02
    

    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:
     
    

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

    Time interval of the image:
    0.000000 64.000000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    254.5850  35.3840    4.9  57.7  -18.6   0.9588   2.4    6.7	Her X-1                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    114.100600 483.270000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    204.6290   9.0613    2.4  18.7   54.3   2.3661   4.7 ------	UNKNOWN                       
    159.5584  -6.9673    4.3  34.9  178.5   1.8207   2.7 ------	UNKNOWN                       
    156.3072  -7.9450    3.3  38.0 -179.4   2.3111   3.5 ------	UNKNOWN                       
    197.5969  51.5148    3.5  37.1  -42.1   2.7106   4.0 ------	UNKNOWN                       
    197.1431  51.3609    4.8  36.9  -42.5   2.3383   3.5 ------	UNKNOWN                       
    166.1910  47.3997    3.1  36.1  -77.1   4.0252   3.7 ------	UNKNOWN                       
    
    Plot creation:
    Tue May  5 21:03:11 EDT 2015