batgrbproduct Analysis for Trigger=557782

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Jun 10 15:47:29 EDT 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger557782/batgroup_hand_proc
======================================================================

  Trigger: 00557782      Segment: 000

  BAT Trigger Time: 392439918.296   [s; MET]
      Trigger Stop: 392439929.796   [s; MET]
               UTC: 2013-06-09T03:05:07.643500    [includes UTCF correction] 
       Where From?: Command line

  BAT 
    RA: 152.675973444186   Dec: 24.1013777128368  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.68
     Image Trigger?:     NO
     Rate S/N Ratio:     16.431676725155  [ if not an image trigger ]
     Image S/N Ratio:    9.68

  Flight Position:   [ source = EXTERNAL ]
    RA: 152.6791   Dec: 24.126  [deg; J2000]


  Partial Coding Fraction: 0.875    [ including projection effects ]

 
  Angular difference between Flight and Ground position is 0.000000 arcmin
 
  Partial Coding Fraction: 0.875    [ including projection effects ]

  Duration
     T90: 6.81599992513657 +/- 0.70958012422145
        Measured from: 0.675999999046326
                   to: 7.49199992418289     [s; relative to TRIGTIME]
     T50: 2.87999993562698 +/- 0.374593125141438
        Measured from: 1.82800000905991
                   to: 4.70799994468689     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.52399998903275     
                   to: 2.52399998903275     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.263999998569489     
                   to: 8.283999979496     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.368843   0.385755   0.227452   0.012149
           0.019824   0.020005   0.017239   0.014229 [error]
 Peak      0.089596   0.082073   0.037299  -0.008011
           0.007492   0.007693   0.006316   0.005044 [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 1.16e-07 1.60e-07 1.64e-07 3.07e-07 5.38e-07 7.47e-07   erg/cm2
              Error 1.06e-08 9.67e-09 1.66e-08 6.25e-08 3.79e-08 7.93e-08   erg/cm2
Peak flux Power-law 8.31e-01 5.95e-01 2.82e-01 1.88e-01 1.80e+00 1.90e+00   ph/cm2/s
              Error 1.16e-01 6.16e-02 5.07e-02 6.27e-02 1.84e-01 1.96e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.06e-07 1.72e-07 1.63e-07 1.14e-07 5.07e-07 5.55e-07   erg/cm2
              Error 1.23e-08 1.25e-08 1.84e-08 7.86e-08 4.22e-08 9.00e-08   erg/cm2
Peak flux Cutoff-PL 7.71e-01 6.59e-01 2.75e-01 6.25e-02 1.75e+00 1.77e+00   ph/cm2/s
              Error 1.30e-01 8.28e-02 5.90e-02 8.00e-02 1.87e-01 1.97e-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    1.965    0.116    -      -           7.28e-03 5.31e-04   49.880 57
CPL   1.301    0.485      46.8   12.3      1.68e-02 1.11e-02   43.500 56
 
The chi2 of BB fit is Chi-Squared Chi-Squared which shows a significant improvement in the fit over a PL.
Check the BB fit.
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.079    0.193    -      -           1.15e-02 1.58e-03   57.960 57
CPL   1.212    0.820      37.1    0.0      3.73e-02 0.00e+00   53.870 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: 4.352000 sec.
T50 in the 50-300 keV band: 2.752000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    8.020    0.264    8.284
T90     6.816    0.676    7.492
T50     2.880    1.828    4.708
Peak    1.000    1.524    2.524

Image

Pre-slew 14.0-100.0 keV image (Event data)

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  152.6791    24.1260   0.0078    18.7388  -127.2696         1.0537229     24.694 TRIG_00557782                 
 
Foreground time interval of the image:
  0.000  11.500 (delta_t =  11.500 [sec])
Background time interval of the image:
-199.000  -9.000 (delta_t = 190.000 [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    0.264 sec. to    8.284 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.96478     ( -0.114286   0.117709 )
Norm@50keV  : 7.28156E-03    ( -0.00053433   0.000527622 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.88 using 59 PHA bins.
# Reduced chi-squared =         0.8752 for     57 degrees of freedom 
# Null hypothesis probability =   7.367156e-01
 
Photon flux (15-150 keV)    in 8.02 sec: 1.07492 ( -0.0659086  0.0659661 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.37688e-07 ( -3.77333e-08  3.81477e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.264 sec. to    8.284 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.30077     ( -0.509413   0.459607 )
Epeak [keV] : 46.7889      ( -9.85063 14.7222 )
Norm@50keV  : 1.68349E-02    ( -0.00726678   0.0148418 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.50 using 59 PHA bins.
# Reduced chi-squared =         0.7768 for     56 degrees of freedom 
# Null hypothesis probability =   8.884603e-01
 
Photon flux (15-150 keV)    in 8.02 sec: 1.03945 ( -0.069769  0.06987 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.06773e-07 ( -4.16021e-08  4.28084e-08 ) ergs/cm2
 
Band function
Time interval is from    0.264 sec. to    8.284 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.30080   ( -0.346357   0.674039 )
beta        : -10.0000    ( 10   3.55271e-15 )
Epeak [keV] : 46.7801      ( -9.84217 14.7363 )
Norm@50keV   : 1.68322E-02    ( -0.00726704   0.0148518 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.50 using 59 PHA bins.
# Reduced chi-squared =         0.7909 for     55 degrees of freedom 
# Null hypothesis probability =   8.684498e-01
 
Photon flux (15-150 keV)    in 8.02 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]    : 11.2636  (-0.846732  0.900548)
R^2/D10^2   : 0.312579  (-0.0785   0.106923)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          96.53 using 59 PHA bins.
# Reduced chi-squared =          1.694 for     57 degrees of freedom 
# Null hypothesis probability =   8.382763e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.674e-08   7.234e-09
25- 50  1.945e-07   1.243e-08
50-150  1.419e-07   2.181e-08
15-150  4.031e-07   3.088e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 73.6771       (-13.1366      17.8865)
Norm        : 5.14823       (-0.490242     0.556107)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.61 using 59 PHA bins.
# Reduced chi-squared =         0.7650 for     57 degrees of freedom 
# Null hypothesis probability =   9.040810e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.065e-07   9.504e-09
25- 50  1.717e-07   1.111e-08
50-150  2.289e-07   3.400e-08
15-150  5.071e-07   4.259e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.74809        (-0.792606      0.921311)
R1^2/D10^2  : 5.41101        (-2.77232      6.61939)
kT2 [keV]   : 16.5524        (-1.94675      2.53093)
R2^2/D10^2  : 5.84062E-02    (-0.0261082   0.0396287)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.25 using 59 PHA bins.
# Reduced chi-squared =         0.6774 for     55 degrees of freedom 
# Null hypothesis probability =   9.680534e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.117e-07   3.725e-08
25- 50  1.630e-07   3.581e-08
50-150  2.225e-07   5.093e-08
15-150  4.972e-07   1.127e-07

Peak spectrum fit

Power-law model
Time interval is from    1.524 sec. to    2.524 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.07925     ( -0.186652   0.198384 )
Norm@50keV  : 1.15422E-02    ( -0.00159186   0.0015595 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.96 using 59 PHA bins.
# Reduced chi-squared =          1.017 for     57 degrees of freedom 
# Null hypothesis probability =   4.395296e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.79751 ( -0.184032  0.184037 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.07034e-07 ( -1.33233e-08  1.363e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.524 sec. to    2.524 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.21166     ( -0.893365   0.745869 )
Epeak [keV] : 37.1046      (   )
Norm@50keV  : 3.73031E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.87 using 59 PHA bins.
# Reduced chi-squared =         0.9620 for     56 degrees of freedom 
# Null hypothesis probability =   5.559318e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.75303 ( -0.1865  0.18692 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.93742e-08 ( -1.37548e-08  1.46948e-08 ) ergs/cm2
 
Band function
Time interval is from    1.524 sec. to    2.524 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.21175   ( -0.812905   0.815647 )
beta        : -10.0000    ( 10   20 )
Epeak [keV] : 37.1001      ( -25.916 13.7026 )
Norm@50keV   : 3.72927E-02    ( -0.0119336   0.0879183 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.87 using 59 PHA bins.
# Reduced chi-squared =         0.9794 for     55 degrees of freedom 
# Null hypothesis probability =   5.178626e-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]    : 9.66445  (-1.19856  1.32807)
R^2/D10^2   : 0.956836  (-0.372861   0.633344)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.83 using 59 PHA bins.
# Reduced chi-squared =          1.260 for     57 degrees of freedom 
# Null hypothesis probability =   8.928217e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.797e-08   3.130e-09
25- 50  4.255e-08   5.600e-09
50-150  2.010e-08   5.735e-09
15-150  8.062e-08   1.090e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 57.4006       (-14.555      22.0513)
Norm        : 9.68105       (-1.55606     1.81566)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.94 using 59 PHA bins.
# Reduced chi-squared =         0.9464 for     57 degrees of freedom 
# Null hypothesis probability =   5.904984e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.415e-08   3.535e-09
25- 50  3.625e-08   4.310e-09
50-150  3.973e-08   1.226e-08
15-150  1.001e-07   1.431e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.71095        (-1.21254      1.48868)
R1^2/D10^2  : 9.91853        (-6.44562      25.3814)
kT2 [keV]   : 15.2345        (-3.03529      4.79039)
R2^2/D10^2  : 0.123798    (-0.0863183   0.147167)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.51 using 59 PHA bins.
# Reduced chi-squared =         0.9365 for     55 degrees of freedom 
# Null hypothesis probability =   6.089083e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.489e-08   1.277e-08
25- 50  3.480e-08   1.566e-08
50-150  3.877e-08   2.211e-08
15-150  9.846e-08   4.450e-08
Plot creation:
Mon Jun 10 16:08:58 EDT 2013