batgrbproduct Analysis for Trigger=538696

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Nov 18 17:38:38 EST 2012
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger538696/batgroup_hand_proc
======================================================================

  Trigger: 00538696      Segment: 000

  BAT Trigger Time: 374835061.88   [s; MET]
      Trigger Stop: 374835096.88   [s; MET]
               UTC: 2012-11-17T08:50:51.996980    [includes UTCF correction] 
       Where From?: Command line

  BAT 
    RA: 31.6352009882339   Dec: 7.37901368067297  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.28
     Image Trigger?:     NO
     Rate S/N Ratio:     21.8174242292714  [ if not an image trigger ]
     Image S/N Ratio:    10.28

  Flight Position:   [ source = EXTERNAL ]
    RA: 31.615   Dec: 7.4395  [deg; J2000]


  Partial Coding Fraction: 1.015625    [ including projection effects ]

 
  Angular difference between Flight and Ground position is 0.000000 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 121.591999948025 +/- 16.6997006934527
        Measured from: 3.60000014305115
                   to: 125.192000091076     [s; relative to TRIGTIME]
     T50: 77.3679999709129 +/- 24.2625967369215
        Measured from: 9.00000011920929
                   to: 86.3680000901222     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 7.05599999427795     
                   to: 8.05599999427795     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.0360000133514404     
                   to: 158.639999985695     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.537996   0.678541   0.771187   0.078061
           0.074451   0.080774   0.072115   0.074603 [error]
 Peak      0.031403   0.048466   0.047907   0.017241
           0.005666   0.006362   0.006054   0.005219 [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 1.31e-07 2.97e-07 5.31e-07 2.24e-06 1.45e-06 3.20e-06   erg/cm2
              Error 2.56e-08 3.50e-08 6.86e-08 6.43e-07 1.75e-07 6.89e-07   erg/cm2
Peak flux Power-law 2.40e-01 3.26e-01 3.27e-01 5.91e-01 1.08e+00 1.48e+00   ph/cm2/s
              Error 6.15e-02 5.05e-02 4.62e-02 1.84e-01 1.39e-01 2.14e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.12e-07 3.18e-07 5.64e-07 8.15e-07 1.81e-06 0.00e+00   erg/cm2
              Error 3.17e-08 4.20e-08 7.92e-08 8.74e-07 8.84e-07 0.00e+00   erg/cm2
Peak flux Cutoff-PL 2.37e-01 3.27e-01 3.29e-01 5.58e-01 1.08e+00 1.45e+00   ph/cm2/s
              Error 6.84e-02 5.40e-02 5.18e-02 2.52e-01 1.40e-01 3.09e-01   ph/cm2/s
 
Fluence        Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
              Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
Peak flux      Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
              Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.161    0.183    -      -           8.90e-04 9.43e-05   72.000 57
CPL   0.369    0.838     109.0  331.0      2.13e-03 2.30e-03   68.720 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.997    0.225    -      -           9.41e-03 1.19e-03   60.680 57
CPL   0.941    0.261     998.6    0.0      1.00e-02 0.00e+00   60.680 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: 116.288000 sec.
T50 in the 50-300 keV band: 48.896000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  158.604    0.036  158.640
T90   121.592    3.600  125.192
T50    77.368    9.000   86.368
Peak    1.000    7.056    8.056

Image

Pre-slew 15.0-200.0 keV image (Event data)

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
   31.6150     7.4395   0.0102     5.6282   131.5655         1.6173666     18.923 TRIG_00538696                 
 
Foreground time interval of the image:
  0.000  35.000 (delta_t =  35.000 [sec])
Background time interval of the image:
-40.000  -5.000 (delta_t =  35.000 [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)

Spectra

Notes:

Time averaged spectrum fit using the pre-slew DRM

Power-law model
Time interval is from    0.036 sec. to  158.640 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.16112     ( -0.184189   0.18143 )
Norm@50keV  : 8.89928E-04    ( -9.43171e-05   9.42706e-05 )
------------------------------------------------------------
# Chi-Squared =          72.00 using 59 PHA bins.
# Reduced chi-squared =          1.263 for     57 degrees of freedom 
# Null hypothesis probability =   8.712159e-02
 
Photon flux (15-150 keV)    in 158.6 sec: 0.103923 ( -0.0111405  0.0111531 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.44815e-06 ( -1.74249e-07  1.76416e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.036 sec. to  158.640 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.369263     ( -0.926157   0.750064 )
Epeak [keV] : 108.993      ( -32.9278 628.99 )
Norm@50keV  : 2.12588E-03    ( -0.00117522   0.00342281 )
------------------------------------------------------------
# Chi-Squared =          68.72 using 59 PHA bins.
# Reduced chi-squared =          1.227 for     56 degrees of freedom 
# Null hypothesis probability =   1.182733e-01
 
Photon flux (15-150 keV)    in 158.6 sec: 0.100199 ( -0.0117921  0.011732 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.8081e-06 ( -4.88072e-07  1.2792e-06 ) ergs/cm2
 
Band function
Time interval is from    0.036 sec. to  158.640 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.369213   ( -0.550075   1.23504 )
beta        : -10.00000    ( 4.69417e+10   4.69417e+10 )
Epeak [keV] : 108.975      ( -32.9258 637.593 )
Norm@50keV   : 2.12601E-03    ( -0.00117442   0.00342609 )
------------------------------------------------------------
# Chi-Squared =          68.72 using 59 PHA bins.
# Reduced chi-squared =          1.250 for     55 degrees of freedom 
# Null hypothesis probability =   1.010364e-01
 
Photon flux (15-150 keV)    in 158.6 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]    : 18.8397  (-2.29602  2.74927)
R^2/D10^2   : 5.93664E-03  (-0.0021331   0.00317778)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          76.43 using 59 PHA bins.
# Reduced chi-squared =          1.341 for     57 degrees of freedom 
# Null hypothesis probability =   4.390960e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.589e-08   1.302e-08
25- 50  3.150e-07   5.115e-08
50-150  8.203e-07   1.589e-07
15-150  1.201e-06   1.903e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.997       (      )
Norm        : 0.422990       (-0.42299     -0.42299)
------------------------------------------------------------
# Chi-Squared =          82.10 using 59 PHA bins.
# Reduced chi-squared =          1.440 for     57 degrees of freedom 
# Null hypothesis probability =   1.639507e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.670e-07   8.993e-08
25- 50  3.212e-07   1.741e-07
50-150  7.045e-07   3.795e-07
15-150  1.193e-06   6.470e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.21333        (-1.7647      2.99277)
R1^2/D10^2  : 0.176700        (-0.144403      1.00539)
kT2 [keV]   : 22.7862        (-3.49005      5.7176)
R2^2/D10^2  : 2.91888E-03    (-0.00156715   0.0019431)
------------------------------------------------------------
# Chi-Squared =          65.98 using 59 PHA bins.
# Reduced chi-squared =          1.200 for     55 degrees of freedom 
# Null hypothesis probability =   1.476443e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.241e-07   6.206e-08
25- 50  2.942e-07   9.663e-08
50-150  9.190e-07   3.607e-07
15-150  1.337e-06   4.255e-07

Peak spectrum fit

Power-law model
Time interval is from    7.056 sec. to    8.056 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.996609     ( -0.228395   0.221096 )
Norm@50keV  : 9.41383E-03    ( -0.00119317   0.00119126 )
------------------------------------------------------------
# Chi-Squared =          60.68 using 59 PHA bins.
# Reduced chi-squared =          1.064 for     57 degrees of freedom 
# Null hypothesis probability =   3.448371e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.08371 ( -0.138827  0.138818 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.01901e-07 ( -1.43899e-08  1.45699e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    7.056 sec. to    8.056 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.940786     ( -0.248611   0.27347 )
Epeak [keV] : 998.594      (   )
Norm@50keV  : 1.00250E-02    (     )
------------------------------------------------------------
# Chi-Squared =          60.68 using 59 PHA bins.
# Reduced chi-squared =          1.083 for     56 degrees of freedom 
# Null hypothesis probability =   3.111150e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.08184 ( -0.139838  0.14054 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.41621e-07 ( -1.22583e-07  8.3303e-08 ) ergs/cm2
 
Band function
Time interval is from    7.056 sec. to    8.056 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.99997   ( -59883.2   -59883.2 )
beta        : -1.06718    ( -0.295387   0.264332 )
Epeak [keV] : 27.7963      ( -27.7963 9.73954 )
Norm@50keV   : 349.533    ( -349.534   1.92435e+06 )
------------------------------------------------------------
# Chi-Squared =          60.12 using 59 PHA bins.
# Reduced chi-squared =          1.093 for     55 degrees of freedom 
# Null hypothesis probability =   2.957522e-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]    : 20.3443  (-3.5352  4.75287)
R^2/D10^2   : 4.88936E-02  (-0.0233993   0.040954)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          73.11 using 59 PHA bins.
# Reduced chi-squared =          1.283 for     57 degrees of freedom 
# Null hypothesis probability =   7.392611e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.874e-09   1.043e-09
25- 50  1.952e-08   4.090e-09
50-150  6.001e-08   1.388e-08
15-150  8.340e-08   1.560e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.998       (      )
Norm        : 4.30997       (-4.30997     -4.30997)
------------------------------------------------------------
# Chi-Squared =          76.68 using 59 PHA bins.
# Reduced chi-squared =          1.345 for     57 degrees of freedom 
# Null hypothesis probability =   4.211665e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.073e-08   5.875e-09
25- 50  2.064e-08   1.141e-08
50-150  4.527e-08   2.452e-08
15-150  7.665e-08   4.211e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 11.9420        (-3.86556      3.6922)
R1^2/D10^2  : 0.195296        (-0.108344      0.204132)
kT2 [keV]   : 94.1461        (-61.0621      -94.1343)
R2^2/D10^2  : 6.70972E-04    (-0.000523855   0.00817015)
------------------------------------------------------------
# Chi-Squared =          58.89 using 59 PHA bins.
# Reduced chi-squared =          1.071 for     55 degrees of freedom 
# Null hypothesis probability =   3.350174e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.270e-09   3.299e-09
25- 50  2.149e-08   1.143e-08
50-150  7.412e-08   6.201e-08
15-150  1.019e-07   5.453e-08
Plot creation:
Sun Nov 18 17:56:00 EST 2012