batgrbproduct Analysis for Trigger=629547

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Feb  3 13:25:58 EST 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger629547/batgroup_hand_proc
======================================================================

  Trigger: 00629547      Segment: 000

  BAT Trigger Time: 444611415.488   [s; MET]
      Trigger Stop: 444611417.536   [s; MET]
               UTC: 2015-02-02T23:10:02.353060    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 39.2357037817736   Dec: -33.1499202499856  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.85
     Image Trigger?:     NO
     Rate S/N Ratio:     18.6815416922694  [ if not an image trigger ]
     Image S/N Ratio:    10.85

  Flight Position:   [ source = BAT ]
    RA: 39.2357037817736   Dec: -33.1499202499856  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 39.2607483601411   Dec: -33.1322485326525  [deg; J2000]  
        { 02h 37m 02.6s , -33d 07' 56.1" }
         +/- 1.72588653259192 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.878179605980338 [arcmin] (formal 1-sigma fit error)
    SNR: 13.9485629219468
 
  Angular difference between Flight and Ground position is 1.645413 arcmin
 
  Partial Coding Fraction: 0.6015625    [ including projection effects ]

  Duration
     T90: 25.6959999799728 +/- 4.29614150930232
        Measured from: -0.887999951839447
                   to: 24.8080000281334     [s; relative to TRIGTIME]
     T50: 16.1920000314713 +/- 1.37283358264541
        Measured from: 1.36800003051758
                   to: 17.5600000619888     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 17.404000043869     
                   to: 18.404000043869     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -1.65599995851517     
                   to: 27.0640000104904     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.321275   0.321948   0.298896   0.107705
           0.034559   0.034477   0.030766   0.026331 [error]
 Peak      0.032287   0.041875   0.040849   0.012945
           0.006756   0.006745   0.006262   0.005143 [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 8.27e-08 1.52e-07 2.14e-07 6.32e-07 6.12e-07 1.08e-06   erg/cm2
              Error 1.49e-08 1.62e-08 3.06e-08 1.99e-07 7.28e-08 2.22e-07   erg/cm2
Peak flux Power-law 2.66e-01 3.16e-01 2.71e-01 3.96e-01 9.93e-01 1.25e+00   ph/cm2/s
              Error 8.29e-02 5.85e-02 4.97e-02 1.61e-01 1.59e-01 2.06e-01   ph/cm2/s
 
Fluence   Cutoff-PL 8.28e-08 1.52e-07 2.12e-07 6.25e-07 6.08e-07 1.03e-06   erg/cm2
              Error 1.48e-08 1.60e-08 2.99e-08 2.06e-07 7.22e-08 2.84e-07   erg/cm2
Peak flux Cutoff-PL 2.70e-01 3.18e-01 2.70e-01 3.86e-01 9.95e-01 1.25e+00   ph/cm2/s
              Error 8.52e-02 5.88e-02 5.06e-02 2.04e-01 1.20e-01 2.35e-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    1.505    0.192    -      -           2.25e-03 2.39e-04   39.540 57
CPL   1.501    0.193    9999.4    0.0      2.25e-03 1.10e-03   39.550 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    1.221    0.291    -      -           8.43e-03 1.31e-03   45.810 57
CPL   1.224    0.293    9999.3    0.0      8.45e-03 5.97e-03   45.820 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: 21.952000 sec.
T50 in the 50-300 keV band: 15.872000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   28.720   -1.656   27.064
T90    25.696   -0.888   24.808
T50    16.192    1.368   17.560
Peak    1.000   17.404   18.404

Image

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

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
   39.2607   -33.1322   0.0137    22.7452    80.1381         1.0843054     13.949 TRIG_00629547                 
 
Foreground time interval of the image:
 -1.656  27.064 (delta_t =  28.720 [sec])
Background time interval of the image:
-60.488  -1.656 (delta_t =  58.832 [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   -1.656 sec. to   27.064 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.50476     ( -0.190892   0.192807 )
Norm@50keV  : 2.24679E-03    ( -0.000240506   0.000238101 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.54 using 59 PHA bins.
# Reduced chi-squared =         0.6937 for     57 degrees of freedom 
# Null hypothesis probability =   9.621130e-01
 
Photon flux (15-150 keV)    in 28.72 sec: 0.280848 ( -0.0291618  0.0292246 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.1167e-07 ( -7.2371e-08  7.32147e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -1.656 sec. to   27.064 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.50144     ( -0.19116   0.195119 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 2.25367E-03    ( -0.000850336   0.0013552 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.55 using 59 PHA bins.
# Reduced chi-squared =         0.7063 for     56 degrees of freedom 
# Null hypothesis probability =   9.529581e-01
 
Photon flux (15-150 keV)    in 28.72 sec: 0.281225 ( -0.029609  0.028811 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.07727e-07 ( -6.87729e-08  7.56715e-08 ) ergs/cm2
 
Band function
Time interval is from   -1.656 sec. to   27.064 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.96598   ( -4.96598   -4.96598 )
beta        : -1.52985    ( -0.209467   0.199481 )
Epeak [keV] : 19.9775      ( -19.9775 5.76552 )
Norm@50keV   : 910.079    ( -92.639   1.21722e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.27 using 59 PHA bins.
# Reduced chi-squared =         0.7140 for     55 degrees of freedom 
# Null hypothesis probability =   9.460337e-01
 
Photon flux (15-150 keV)    in 28.72 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]    : 15.7907  (-2.27828  2.71603)
R^2/D10^2   : 2.56550E-02  (-0.0107032   0.0183571)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          74.87 using 59 PHA bins.
# Reduced chi-squared =          1.313 for     57 degrees of freedom 
# Null hypothesis probability =   5.636545e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.810e-08   7.194e-09
25- 50  1.585e-07   2.476e-08
50-150  2.748e-07   5.455e-08
15-150  4.714e-07   7.051e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 1.14281       (-0.116865     0.11686)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.59 using 59 PHA bins.
# Reduced chi-squared =         0.7296 for     57 degrees of freedom 
# Null hypothesis probability =   9.375990e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.174e-08   3.317e-08
25- 50  1.572e-07   8.480e-08
50-150  3.448e-07   1.878e-07
15-150  5.838e-07   2.548e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.03531        (-1.14289      1.60231)
R1^2/D10^2  : 1.10648        (-0.734844      2.30427)
kT2 [keV]   : 25.5109        (-5.22667      9.27481)
R2^2/D10^2  : 4.35457E-03    (-0.00275139   0.0051816)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.81 using 59 PHA bins.
# Reduced chi-squared =         0.6875 for     55 degrees of freedom 
# Null hypothesis probability =   9.628183e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.347e-08   4.386e-08
25- 50  1.330e-07   4.108e-08
50-150  3.879e-07   1.449e-07
15-150  6.143e-07   1.978e-07

Peak spectrum fit

Power-law model
Time interval is from   17.404 sec. to   18.404 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.22082     ( -0.294313   0.287219 )
Norm@50keV  : 8.43303E-03    ( -0.00130525   0.00130523 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.81 using 59 PHA bins.
# Reduced chi-squared =         0.8036 for     57 degrees of freedom 
# Null hypothesis probability =   8.560297e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.992866 ( -0.158959  0.159382 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.50623e-08 ( -1.47182e-08  1.48827e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   17.404 sec. to   18.404 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.22441     ( -0.3037   0.281937 )
Epeak [keV] : 9999.32      ( -9999.36 -9999.36 )
Norm@50keV  : 8.44969E-03    ( -0.00131072   0.0106359 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.82 using 59 PHA bins.
# Reduced chi-squared =         0.8182 for     56 degrees of freedom 
# Null hypothesis probability =   8.323713e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.994610 ( -0.08347  0.15752 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.45018e-08 ( -1.41937e-08  1.52925e-08 ) ergs/cm2
 
Band function
Time interval is from   17.404 sec. to   18.404 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.929088   ( 0.928554   0.928554 )
beta        : -1.22143    ( 1.22131   0.29531 )
Epeak [keV] : 65.2155      ( -65.3177 -65.3177 )
Norm@50keV   : 1.52797E-02    ( -0.00706697   564944 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.80 using 59 PHA bins.
# Reduced chi-squared =         0.8328 for     55 degrees of freedom 
# Null hypothesis probability =   8.068784e-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]    : 19.5190  (-4.1351  5.83667)
R^2/D10^2   : 4.77623E-02  (-0.0271221   0.0574291)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.61 using 59 PHA bins.
# Reduced chi-squared =          1.028 for     57 degrees of freedom 
# Null hypothesis probability =   4.159990e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.541e-09   1.147e-09
25- 50  1.735e-08   5.156e-09
50-150  4.883e-08   1.614e-08
15-150  6.972e-08   1.886e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 4.10316       (-0.648275     0.648212)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.26 using 59 PHA bins.
# Reduced chi-squared =         0.8817 for     57 degrees of freedom 
# Null hypothesis probability =   7.241855e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.022e-08   5.885e-09
25- 50  1.965e-08   1.113e-08
50-150  4.311e-08   2.447e-08
15-150  7.298e-08   4.064e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.86119        (-2.51677      2.66054)
R1^2/D10^2  : 1.78530        (-1.58858      6.10603)
kT2 [keV]   : 31.2547        (-10.1928      145.742)
R2^2/D10^2  : 9.50810E-03    (-0.00877061   0.0245028)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.29 using 59 PHA bins.
# Reduced chi-squared =         0.8416 for     55 degrees of freedom 
# Null hypothesis probability =   7.923632e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.290e-09   5.551e-09
25- 50  1.634e-08   8.462e-09
50-150  6.087e-08   3.381e-08
15-150  8.650e-08   4.363e-08
Plot creation:
Tue Feb  3 13:31:22 EST 2015