batgrbproduct Analysis for Trigger=607399

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Jul 29 16:12:46 EDT 2014
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger607399/batgroup_hand_proc
======================================================================

  Trigger: 00607399      Segment: 000

  BAT Trigger Time: 428294496.212   [s; MET]
      Trigger Stop: 428294496.276   [s; MET]
               UTC: 2014-07-29T02:41:23.886820    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 272.172118721435   Dec: -20.4373566980691  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    19.08
     Image Trigger?:     NO
     Rate S/N Ratio:     85.48684109265  [ if not an image trigger ]
     Image S/N Ratio:    19.08

  Flight Position:   [ source = BAT ]
    RA: 272.172118721435   Dec: -20.4373566980691  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 272.167715156312   Dec: -20.4321746966956  [deg; J2000]  
        { 18h 08m 40.3s , -20d 25' 55.8" }
         +/- 0.997674432129378 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.403990507504367 [arcmin] (formal 1-sigma fit error)
    SNR: 30.5184793895158
 
  Angular difference between Flight and Ground position is 0.397455 arcmin
 
  Partial Coding Fraction: 0.9609375    [ including projection effects ]

  Duration
     T90: 0.159999966621399 +/- 0.039999997615816
        Measured from: -0.0480000376701355
                   to: 0.111999928951263     [s; relative to TRIGTIME]
     T50: 0.0519999265670776 +/- 0.0126491362748289
        Measured from: 0.00800001621246338
                   to: 0.059999942779541     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.462000012397766     
                   to: 0.537999987602234     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.0799999833106995     
                   to: 0.15200001001358     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.099719   0.085936   0.027563   0.001984
           0.004770   0.004336   0.002850   0.001671 [error]
 Peak      0.103430   0.091835   0.028202   0.002600
           0.006894   0.006346   0.004723   0.003634 [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 3.34e-08 3.23e-08 2.18e-08 2.30e-08 9.68e-08 1.10e-07   erg/cm2
              Error 2.79e-09 2.04e-09 2.36e-09 4.64e-09 6.29e-09 8.40e-09   erg/cm2
Peak flux Power-law 1.07e+00 6.35e-01 2.39e-01 1.20e-01 2.01e+00 2.07e+00   ph/cm2/s
              Error 1.20e-01 5.39e-02 3.69e-02 3.38e-02 1.68e-01 1.71e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.93e-08 3.74e-08 2.14e-08 4.97e-09 9.21e-08 9.30e-08   erg/cm2
              Error 3.27e-09 2.88e-09 3.08e-09 3.39e-09 6.65e-09 7.42e-09   erg/cm2
Peak flux Cutoff-PL 9.41e-01 7.40e-01 2.17e-01 2.05e-02 1.92e+00 1.92e+00   ph/cm2/s
              Error 1.40e-01 7.55e-02 4.61e-02 2.46e-02 1.73e-01 1.75e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band -------- -------- -------- -------- -------- 1.92e+00   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    2.568    0.113    -      -           4.09e-02 3.32e-03   62.590 57
CPL   1.271    0.593      23.9   10.2      2.24e-01 0.00e+00   42.450 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    2.408    0.162    -      -           1.08e-02 1.27e-03   59.870 57
CPL   0.878    0.864      28.6    8.9      8.87e-02 1.62e-01   47.280 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: 0.128000 sec.
T50 in the 50-300 keV band: 0.064000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    0.232   -0.080    0.152
T90     0.160   -0.048    0.112
T50     0.052    0.008    0.060
Peak    1.000   -0.462    0.538

Image

Pre-slew 15.0-350.0 keV image (Event data)

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  272.1677   -20.4322   0.0063    18.1570   163.2795         0.2250406     30.518 TRIG_00607399                 
 
Foreground time interval of the image:
 -0.080   0.152 (delta_t =   0.232 [sec])
Background time interval of the image:
-119.212  -0.080 (delta_t = 119.132 [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   -0.080 sec. to    0.152 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.56850     ( -0.109785   0.115295 )
Norm@50keV  : 4.09092E-02    ( -0.00334773   0.00330047 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.59 using 59 PHA bins.
# Reduced chi-squared =          1.098 for     57 degrees of freedom 
# Null hypothesis probability =   2.846886e-01
 
Photon flux (15-150 keV)    in 0.232 sec: 8.38582 ( -0.543405  0.544705 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.6763e-08 ( -6.28126e-09  6.29674e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.080 sec. to    0.152 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.27127     ( -0.637231   0.548026 )
Epeak [keV] : 23.8558      ( -13.765 6.60591 )
Norm@50keV  : 0.224086    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.45 using 59 PHA bins.
# Reduced chi-squared =         0.7580 for     56 degrees of freedom 
# Null hypothesis probability =   9.094002e-01
 
Photon flux (15-150 keV)    in 0.232 sec: 8.00955 ( -0.56467  0.56586 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.20516e-08 ( -6.61594e-09  6.67998e-09 ) ergs/cm2
 
Band function
Time interval is from   -0.080 sec. to    0.152 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.24715   ( -0.340011   0.702226 )
beta        : -4.16077    ( 4.203   1.079 )
Epeak [keV] : 24.0966      ( -11.6501 6.36662 )
Norm@50keV   : 0.231806    ( -0.0707401   0.387506 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.20 using 59 PHA bins.
# Reduced chi-squared =         0.7673 for     55 degrees of freedom 
# Null hypothesis probability =   8.971339e-01
 
Photon flux (15-150 keV)    in 0.232 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]    : 8.71392  (-0.572566  0.597703)
R^2/D10^2   : 6.26385  (-1.52499   2.06003)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          78.58 using 59 PHA bins.
# Reduced chi-squared =          1.379 for     57 degrees of freedom 
# Null hypothesis probability =   3.063727e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.111e-08   2.231e-09
25- 50  4.262e-08   2.935e-09
50-150  1.472e-08   2.648e-09
15-150  7.845e-08   5.382e-09
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 36.2002       (-4.37985      5.07017)
Norm        : 57.5036       (-6.77268     7.7996)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.53 using 59 PHA bins.
# Reduced chi-squared =         0.7461 for     57 degrees of freedom 
# Null hypothesis probability =   9.232186e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.954e-08   2.540e-09
25- 50  3.715e-08   2.424e-09
50-150  2.568e-08   4.366e-09
15-150  9.238e-08   6.334e-09
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.20931        (-0.98582      1.19048)
R1^2/D10^2  : 78.0847        (-49.2072      193.793)
kT2 [keV]   : 11.9104        (-1.51175      2.28779)
R2^2/D10^2  : 1.28576    (-0.772585   1.24461)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.27 using 59 PHA bins.
# Reduced chi-squared =         0.7685 for     55 degrees of freedom 
# Null hypothesis probability =   8.958016e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.993e-08   1.290e-08
25- 50  3.664e-08   1.077e-08
50-150  2.382e-08   6.799e-09
15-150  9.039e-08   2.192e-08

Peak spectrum fit

Power-law model
Time interval is from   -0.462 sec. to    0.538 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.40774     ( -0.157833   0.166898 )
Norm@50keV  : 1.08099E-02    ( -0.00127845   0.0012622 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.87 using 59 PHA bins.
# Reduced chi-squared =          1.050 for     57 degrees of freedom 
# Null hypothesis probability =   3.720743e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.00921 ( -0.168243  0.168359 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.05634e-07 ( -9.94763e-09  1.00869e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.462 sec. to    0.538 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.878352     ( -0.936878   0.790471 )
Epeak [keV] : 28.6142      ( -11.9945 5.77805 )
Norm@50keV  : 8.86811E-02    ( -0.0886765   0.236134 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.28 using 59 PHA bins.
# Reduced chi-squared =         0.8443 for     56 degrees of freedom 
# Null hypothesis probability =   7.902779e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.91632 ( -0.17309  0.17344 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.59144e-08 ( -9.687e-09  1.02846e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.462 sec. to    0.538 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.878914   ( -0.62104   1.16017 )
beta        : -10.0000    ( 10   3.55271e-15 )
Epeak [keV] : 28.6058      ( -11.9811 5.77856 )
Norm@50keV   : 8.86070E-02    ( -0.0886068   0.236529 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.28 using 59 PHA bins.
# Reduced chi-squared =         0.8596 for     55 degrees of freedom 
# Null hypothesis probability =   7.609564e-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]    : 8.69690  (-0.742898  0.789415)
R^2/D10^2   : 1.57229  (-0.471459   0.691094)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.09 using 59 PHA bins.
# Reduced chi-squared =          1.089 for     57 degrees of freedom 
# Null hypothesis probability =   2.996941e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.272e-08   3.090e-09
25- 50  4.574e-08   4.520e-09
50-150  1.569e-08   3.820e-09
15-150  8.416e-08   8.465e-09
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 38.0691       (-6.45564      8.25332)
Norm        : 13.4821       (-2.0238     2.42639)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.18 using 59 PHA bins.
# Reduced chi-squared =         0.8453 for     57 degrees of freedom 
# Null hypothesis probability =   7.908970e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.043e-08   3.170e-09
25- 50  3.917e-08   3.595e-09
50-150  2.868e-08   7.165e-09
15-150  9.827e-08   9.415e-09
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.75615        (-1.28059      1.60092)
R1^2/D10^2  : 26.5221        (-20.2691      208.971)
kT2 [keV]   : 11.0554        (-1.56586      2.47252)
R2^2/D10^2  : 0.479556    (-0.308648   0.512488)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.29 using 59 PHA bins.
# Reduced chi-squared =         0.8234 for     55 degrees of freedom 
# Null hypothesis probability =   8.217933e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.990e-08   1.438e-08
25- 50  4.019e-08   1.870e-08
50-150  2.422e-08   1.003e-08
15-150  9.431e-08   3.610e-08
Plot creation:
Tue Jul 29 16:23:50 EDT 2014