batgrbproduct Analysis for Trigger=714404

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat Oct  1 10:05:40 EDT 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger714404/batgroup_hand_proc
======================================================================

  Trigger: 00714404      Segment: 000

  BAT Trigger Time: 496976733.628   [s; MET]
      Trigger Stop: 496976733.692   [s; MET]
               UTC: 2016-10-01T01:05:16.687760    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 71.9131924986459   Dec: -57.2827127678074  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.36
     Image Trigger?:     NO
     Rate S/N Ratio:     16.2172747402269  [ if not an image trigger ]
     Image S/N Ratio:    7.36

  Flight Position:   [ source = BAT ]
    RA: 71.9131924986459   Dec: -57.2827127678074  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 71.9228621680703   Dec: -57.2610616595733  [deg; J2000]  
        { 04h 47m 41.5s , -57d 15' 39.8" }
         +/- 0.969409638639811 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.319043007355519 [arcmin] (formal 1-sigma fit error)
    SNR: 31.7975469930809
 
  Angular difference between Flight and Ground position is 1.336401 arcmin
 
  Partial Coding Fraction: 0.7890625    [ including projection effects ]

  Duration
     T90: 2.60399997234344 +/- 0.40051963120828
        Measured from: -0.108000040054321
                   to: 2.49599993228912     [s; relative to TRIGTIME]
     T50: 1.24399995803833 +/- 0.141364796385792
        Measured from: 0.519999980926514
                   to: 1.76399993896484     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.39999997615814     
                   to: 2.39999997615814     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.216000020503998     
                   to: 3.11199998855591     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.212250   0.336400   0.329646   0.093980
           0.015281   0.016354   0.015329   0.012064 [error]
 Peak      0.073936   0.149540   0.174750   0.047737
           0.008821   0.009916   0.009836   0.007711 [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 5.91e-08 1.35e-07 2.45e-07 1.05e-06 6.66e-07 1.49e-06   erg/cm2
              Error 5.94e-09 8.03e-09 1.46e-08 1.43e-07 3.75e-08 1.51e-07   erg/cm2
Peak flux Power-law 6.87e-01 1.00e+00 1.09e+00 2.20e+00 3.45e+00 4.98e+00   ph/cm2/s
              Error 9.74e-02 8.56e-02 7.56e-02 3.41e-01 2.30e-01 3.77e-01   ph/cm2/s
 
Fluence   Cutoff-PL 5.48e-08 1.39e-07 2.53e-07 6.75e-07 6.54e-07 1.12e-06   erg/cm2
              Error 7.44e-09 8.99e-09 1.71e-08 3.28e-07 4.03e-08 3.27e-07   erg/cm2
Peak flux Cutoff-PL 6.18e-01 1.01e+00 1.13e+00 1.56e+00 3.40e+00 4.33e+00   ph/cm2/s
              Error 1.29e-01 9.06e-02 9.87e-02 5.82e-01 2.40e-01 7.14e-01   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    1.144    0.090    -      -           1.94e-02 9.84e-04   55.150 57
CPL   0.814    0.370     200.4  -60.6      2.75e-02 1.05e-02   52.660 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    0.882    0.117    -      -           3.01e-02 2.01e-03   32.470 57
CPL   0.519    0.468     244.4    0.0      4.29e-02 0.00e+00   30.730 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: 2.496000 sec.
T50 in the 50-300 keV band: 1.024000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    3.328   -0.216    3.112
T90     2.604   -0.108    2.496
T50     1.244    0.520    1.764
Peak    1.000    1.400    2.400

Image

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

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
   71.9229   -57.2611   0.0060    17.9410   129.4196         1.0189087     31.798 TRIG_00714404                 
 
Foreground time interval of the image:
 -0.216   3.112 (delta_t =   3.328 [sec])
Background time interval of the image:
-214.527  -0.216 (delta_t = 214.311 [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   -0.216 sec. to    3.112 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.14378     ( -0.0906799   0.090021 )
Norm@50keV  : 1.94158E-02    ( -0.000983874   0.000983576 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.15 using 59 PHA bins.
# Reduced chi-squared =         0.9675 for     57 degrees of freedom 
# Null hypothesis probability =   5.448757e-01
 
Photon flux (15-150 keV)    in 3.328 sec: 2.26262 ( -0.118277  0.118426 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.66429e-07 ( -3.73804e-08  3.75239e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.216 sec. to    3.112 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.814474     ( -0.387799   0.35277 )
Epeak [keV] : 200.375      ( -79.1503 -200.375 )
Norm@50keV  : 2.74860E-02    ( -0.0075989   0.0133417 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.66 using 59 PHA bins.
# Reduced chi-squared =         0.9403 for     56 degrees of freedom 
# Null hypothesis probability =   6.021552e-01
 
Photon flux (15-150 keV)    in 3.328 sec: 2.22736 ( -0.12429  0.12412 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.54015e-07 ( -4.04452e-08  4.01923e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.216 sec. to    3.112 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.770687   ( 0.770627   0.826165 )
beta        : -1.43672    ( 1.43808   0.324195 )
Epeak [keV] : 177.485      ( -177.302 -177.302 )
Norm@50keV   : 2.90326E-02    ( -0.00833327   2598.88 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.56 using 59 PHA bins.
# Reduced chi-squared =         0.9556 for     55 degrees of freedom 
# Null hypothesis probability =   5.684755e-01
 
Photon flux (15-150 keV)    in 3.328 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]    : 19.8586  (-1.31376  1.44027)
R^2/D10^2   : 0.108034  (-0.0219617   0.0270513)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         110.10 using 59 PHA bins.
# Reduced chi-squared =         1.9315 for     57 degrees of freedom 
# Null hypothesis probability =   3.101116e-05
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.741e-08   2.666e-09
25- 50  1.359e-07   1.033e-08
50-150  3.969e-07   3.311e-08
15-150  5.602e-07   3.528e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-7.7909      -200)
Norm        : 9.34860       (-0.485518     0.485518)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         109.03 using 59 PHA bins.
# Reduced chi-squared =         1.9128 for     57 degrees of freedom 
# Null hypothesis probability =   4.078749e-05
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.745e-08   4.360e-09
25- 50  1.490e-07   9.984e-09
50-150  3.268e-07   5.924e-08
15-150  5.532e-07   5.891e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.39779        (-1.92856      2.57854)
R1^2/D10^2  : 1.34426        (-0.779484      2.44195)
kT2 [keV]   : 28.8879        (-4.39158      8.98012)
R2^2/D10^2  : 2.76363E-02    (-0.0166587   0.0216945)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.40 using 59 PHA bins.
# Reduced chi-squared =          1.007 for     55 degrees of freedom 
# Null hypothesis probability =   4.594729e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.379e-08   1.699e-08
25- 50  1.377e-07   2.824e-08
50-150  4.586e-07   8.330e-08
15-150  6.501e-07   1.057e-07

Peak spectrum fit

Power-law model
Time interval is from    1.400 sec. to    2.400 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.882427     ( -0.118197   0.11609 )
Norm@50keV  : 3.00688E-02    ( -0.00201145   0.00200383 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          32.47 using 59 PHA bins.
# Reduced chi-squared =         0.5696 for     57 degrees of freedom 
# Null hypothesis probability =   9.963408e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.45095 ( -0.230277  0.230558 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.3978e-07 ( -2.42778e-08  2.43698e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.400 sec. to    2.400 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.518936     ( -0.525085   0.410737 )
Epeak [keV] : 244.419      (   )
Norm@50keV  : 4.29103E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          30.73 using 59 PHA bins.
# Reduced chi-squared =         0.5487 for     56 degrees of freedom 
# Null hypothesis probability =   9.976129e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.39979 ( -0.23995  0.23948 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.35096e-07 ( -2.5612e-08  2.5418e-08 ) ergs/cm2
 
Band function
Time interval is from    1.400 sec. to    2.400 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.811632   ( 0.811566   0.811566 )
beta        : -0.886360    ( -0.112759   0.121646 )
Epeak [keV] : 15.6401      (   )
Norm@50keV   : 4.36850E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          32.47 using 59 PHA bins.
# Reduced chi-squared =         0.5904 for     55 degrees of freedom 
# Null hypothesis probability =   9.933274e-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]    : 24.2642  (-2.1103  2.4146)
R^2/D10^2   : 9.45708E-02  (-0.0234896   0.0301626)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.14 using 59 PHA bins.
# Reduced chi-squared =         0.9675 for     57 degrees of freedom 
# Null hypothesis probability =   5.449845e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.824e-09   1.365e-09
25- 50  5.488e-08   5.250e-09
50-150  2.405e-07   2.490e-08
15-150  3.052e-07   2.770e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 13.6523       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         118.28 using 59 PHA bins.
# Reduced chi-squared =         2.0751 for     57 degrees of freedom 
# Null hypothesis probability =   3.508087e-06
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.400e-08   3.020e-09
25- 50  6.539e-08   9.635e-09
50-150  1.434e-07   5.064e-08
15-150  2.428e-07   6.200e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.84457        (-2.59988      4.28275)
R1^2/D10^2  : 1.94111        (-1.46116      9.40288)
kT2 [keV]   : 31.0317        (-4.7542      11.0879)
R2^2/D10^2  : 4.11525E-02    (-0.0257578   0.0229678)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          31.26 using 59 PHA bins.
# Reduced chi-squared =         0.5683 for     55 degrees of freedom 
# Null hypothesis probability =   9.958817e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.033e-08   8.564e-09
25- 50  5.666e-08   1.442e-08
50-150  2.575e-07   5.130e-08
15-150  3.345e-07   6.260e-08
Plot creation:
Sat Oct  1 10:22:53 EDT 2016