batgrbproduct Analysis for Trigger=559075

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu Jun 27 11:07:41 EDT 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger559075/batgroup_hand_proc
======================================================================

  Trigger: 00559075      Segment: 000

  BAT Trigger Time: 393936674.496   [s; MET]
      Trigger Stop: 393936674.56   [s; MET]
               UTC: 2013-06-26T10:51:03.776680    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 273.130048097431   Dec: -9.5308586993301  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.33
     Image Trigger?:     NO
     Rate S/N Ratio:     26  [ if not an image trigger ]
     Image S/N Ratio:    9.33

  Flight Position:   [ source = BAT ]
    RA: 273.130048097431   Dec: -9.5308586993301  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 273.127552047332   Dec: -9.52498170277618  [deg; J2000]  
        { 18h 12m 30.6s , -09d 31' 29.9" }
         +/- 1.75903672092256 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.631150223343429 [arcmin] (formal 1-sigma fit error)
    SNR: 13.5745567524287
 
  Angular difference between Flight and Ground position is 0.382302 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 0.163999974727631 +/- 0.026832816796251
        Measured from: -0.00400000810623169
                   to: 0.159999966621399     [s; relative to TRIGTIME]
     T50: 0.0879999995231628 +/- 0.0291204412600908
        Measured from: 0.0199999809265137
                   to: 0.107999980449677     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.413999974727631     
                   to: 0.586000025272369     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.0119999647140503     
                   to: 0.180000007152557     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.022420   0.033199   0.032466   0.004804
           0.004020   0.003881   0.003584   0.002619 [error]
 Peak      0.029584   0.036114   0.042250   0.007690
           0.007593   0.006984   0.005826   0.004789 [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 6.05e-09 1.26e-08 2.04e-08 7.44e-08 5.64e-08 1.13e-07   erg/cm2
              Error 1.34e-09 1.74e-09 3.22e-09 2.49e-08 8.10e-09 2.73e-08   erg/cm2
Peak flux Power-law 2.47e-01 2.77e-01 2.22e-01 2.95e-01 8.54e-01 1.04e+00   ph/cm2/s
              Error 8.43e-02 5.76e-02 4.65e-02 1.32e-01 1.59e-01 1.90e-01   ph/cm2/s
 
Fluence   Cutoff-PL 4.04e-09 1.43e-08 2.34e-08 1.40e-08 5.16e-08 5.58e-08   erg/cm2
              Error 1.77e-09 2.21e-09 4.12e-09 1.46e-08 8.43e-09 1.62e-08   erg/cm2
Peak flux Cutoff-PL 2.11e-01 2.86e-01 2.37e-01 1.68e-01 8.26e-01 9.02e-01   ph/cm2/s
              Error 1.10e-01 6.41e-02 5.77e-02 1.77e-01 1.71e-01 2.60e-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    1.301    0.210    -      -           2.97e-02 3.84e-03   62.400 57
CPL  -0.526    1.386      74.5   25.6      2.11e-01 5.13e-01   54.400 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    1.320    0.318    -      -           7.13e-03 1.27e-03   41.010 57
CPL   0.693    1.324     115.8    0.0      1.38e-02 3.38e-02   40.360 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    0.192   -0.012    0.180
T90     0.164   -0.004    0.160
T50     0.088    0.020    0.108
Peak    1.000   -0.414    0.586

Image

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

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  273.1276    -9.5250   0.0142    14.5596  -147.7482         0.0975726     13.575 TRIG_00559075                 
 
Foreground time interval of the image:
 -0.012   0.180 (delta_t =   0.192 [sec])
Background time interval of the image:
-119.496 -110.851 (delta_t =   8.645 [sec])
-60.496  -0.012 (delta_t =  60.484 [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   -0.012 sec. to    0.180 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.30105     ( -0.209428   0.210483 )
Norm@50keV  : 2.97342E-02    ( -0.00384249   0.00383748 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.40 using 59 PHA bins.
# Reduced chi-squared =          1.095 for     57 degrees of freedom 
# Null hypothesis probability =   2.903726e-01
 
Photon flux (15-150 keV)    in 0.192 sec: 3.54807 ( -0.463289  0.464092 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.63992e-08 ( -8.05538e-09  8.14554e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.012 sec. to    0.180 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.525652     ( -1.59895   1.17395 )
Epeak [keV] : 74.4938      ( -12.7982 38.3104 )
Norm@50keV  : 0.210909    ( -0.210972   0.815223 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.40 using 59 PHA bins.
# Reduced chi-squared =         0.9715 for     56 degrees of freedom 
# Null hypothesis probability =   5.355773e-01
 
Photon flux (15-150 keV)    in 0.192 sec: 3.28987 ( -0.49786  0.49591 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.15676e-08 ( -8.25101e-09  8.61619e-09 ) ergs/cm2
 
Band function
Time interval is from   -0.012 sec. to    0.180 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.523163   ( -0.776506   1.26256 )
beta        : -10.00000    ( 10   3.96618e-06 )
Epeak [keV] : 74.4896      ( -11.158 38.2573 )
Norm@50keV   : 0.210519    ( -0.0263916   0.804865 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.40 using 59 PHA bins.
# Reduced chi-squared =         0.9891 for     55 degrees of freedom 
# Null hypothesis probability =   4.974207e-01
 
Photon flux (15-150 keV)    in 0.192 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]    : 17.5691  (-2.13323  2.50486)
R^2/D10^2   : 0.261844  (-0.0960295   0.144354)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.01 using 59 PHA bins.
# Reduced chi-squared =         0.9651 for     57 degrees of freedom 
# Null hypothesis probability =   5.500250e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.131e-09   7.853e-10
25- 50  1.421e-08   2.640e-09
50-150  3.164e-08   7.622e-09
15-150  4.898e-08   8.592e-09
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 14.7046       (-1.89721     1.89708)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.92 using 59 PHA bins.
# Reduced chi-squared =          1.121 for     57 degrees of freedom 
# Null hypothesis probability =   2.466272e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.030e-09   3.987e-09
25- 50  1.352e-08   7.445e-09
50-150  2.966e-08   1.649e-08
15-150  5.022e-08   2.809e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 2.99309        (-2.12733      3.95583)
R1^2/D10^2  : 63.9681        (-62.0754      1026.69)
kT2 [keV]   : 18.6819        (-2.51218      3.24886)
R2^2/D10^2  : 0.204972    (-0.0903478   0.119251)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.94 using 59 PHA bins.
# Reduced chi-squared =         0.9261 for     55 degrees of freedom 
# Null hypothesis probability =   6.305873e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.979e-09   1.976e-09
25- 50  1.324e-08   3.551e-09
50-150  3.299e-08   9.550e-09
15-150  5.121e-08   1.234e-08

Peak spectrum fit

Power-law model
Time interval is from   -0.414 sec. to    0.586 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.31982     ( -0.319369   0.315747 )
Norm@50keV  : 7.12849E-03    ( -0.0012737   0.00127298 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.01 using 59 PHA bins.
# Reduced chi-squared =         0.7195 for     57 degrees of freedom 
# Null hypothesis probability =   9.454373e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.853628 ( -0.158864  0.159793 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.0108e-08 ( -1.36023e-08  1.37613e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.414 sec. to    0.586 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.692744     ( -1.74888   0.899481 )
Epeak [keV] : 115.850      ( -115.838 -115.838 )
Norm@50keV  : 1.37898E-02    ( -0.00773504   0.0597859 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.36 using 59 PHA bins.
# Reduced chi-squared =         0.7206 for     56 degrees of freedom 
# Null hypothesis probability =   9.428612e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.826006 ( -0.171796  0.169802 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.79128e-08 ( -1.43347e-08  1.45438e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.414 sec. to    0.586 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.704485   ( -0.56412   0.78577 )
beta        : -10.00000    ( 10   20 )
Epeak [keV] : 116.155      ( -45.5517 -116.155 )
Norm@50keV   : 1.36852E-02    ( -0.00762645   0.059861 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.36 using 59 PHA bins.
# Reduced chi-squared =         0.7337 for     55 degrees of freedom 
# Null hypothesis probability =   9.303939e-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]    : 19.0888  (-3.5555  4.65073)
R^2/D10^2   : 4.50451E-02  (-0.0235061   0.0456029)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.73 using 59 PHA bins.
# Reduced chi-squared =         0.7672 for     57 degrees of freedom 
# Null hypothesis probability =   9.017096e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.221e-09   1.161e-09
25- 50  1.554e-08   5.793e-09
50-150  4.166e-08   1.397e-08
15-150  6.042e-08   1.852e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 3.56610       (-0.641824     0.64175)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.31 using 59 PHA bins.
# Reduced chi-squared =         0.7424 for     57 degrees of freedom 
# Null hypothesis probability =   9.266540e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.881e-09   5.170e-09
25- 50  1.708e-08   9.715e-09
50-150  3.747e-08   2.142e-08
15-150  6.343e-08   3.634e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.49575        (-2.70633      4.04619)
R1^2/D10^2  : 3.64231        (-3.45628      25.2919)
kT2 [keV]   : 22.5085        (-4.92527      8.63453)
R2^2/D10^2  : 2.37866E-02    (-0.0161223   0.0329835)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.07 using 59 PHA bins.
# Reduced chi-squared =         0.6922 for     55 degrees of freedom 
# Null hypothesis probability =   9.601422e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.882e-09   4.733e-09
25- 50  1.465e-08   7.841e-09
50-150  4.484e-08   2.619e-08
15-150  6.737e-08   3.044e-08
Plot creation:
Thu Jun 27 11:30:35 EDT 2013