batgrbproduct Analysis for Trigger=573667

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Oct  8 09:52:08 EDT 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger573667/GCN5_download_cron
======================================================================

  Trigger: 00573667      Segment: 000

  BAT Trigger Time: 402886672   [s; MET]
      Trigger Stop: 402886736   [s; MET]
               UTC: 2013-10-08T00:57:40.876060    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 297.333557422165   Dec: 30.2198818589025  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    6.06
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    6.06

  Flight Position:   [ source = BAT ]
    RA: 297.333557422165   Dec: 30.2198818589025  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 297.372358901016   Dec: 30.2773256105108  [deg; J2000]  
        { 19h 49m 29.4s , +30d 16' 38.4" }
         +/- 3.72043455561074 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.63721926448721 [arcmin] (formal 1-sigma fit error)
    SNR: 4.6556954825795
 
  Angular difference between Flight and Ground position is 3.990464 arcmin
 
  Partial Coding Fraction: 1    [ including projection effects ]

  Duration
     T90: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]
     T50: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 64 second)
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.141993   0.211830  -0.004983  -0.028601
           0.040916   0.040701   0.034468   0.029859 [error]
 Peak      0.141993   0.211830  -0.004983  -0.028601
           0.040916   0.040701   0.034468   0.029859 [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 3.78e-08 5.31e-08 5.51e-08 1.05e-07 1.79e-07 2.52e-07   erg/cm2
              Error 1.48e-08 1.71e-08 2.75e-08 1.19e-07 6.80e-08 1.37e-07   erg/cm2
Peak flux Power-law 1.93e-02 1.49e-02 7.74e-03 5.80e-03 4.45e-02 4.76e-02   ph/cm2/s
              Error 7.62e-03 4.74e-03 3.75e-03 6.19e-03 1.41e-02 1.53e-02   ph/cm2/s
 
Fluence   Cutoff-PL 2.50e-08 9.70e-08 1.78e-08 1.40e-11 1.40e-07 1.40e-07   erg/cm2
              Error 1.67e-08 2.83e-08 2.39e-08 9.81e-10 4.25e-08 4.25e-08   erg/cm2
Peak flux Cutoff-PL 1.18e-02 2.72e-02 3.02e-03 1.29e-06 4.20e-02 4.20e-02   ph/cm2/s
              Error 8.34e-03 7.84e-03 3.76e-03 8.50e-05 1.28e-02 1.28e-02   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    1.938    0.505    -      -           3.05e-04 1.18e-04   70.510 57
CPL  -6.803    0.000      35.7    5.5      8.40e+01 0.00e+00   58.960 56
 
The chi2 of BB fit is 61.49 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    1.938    0.505    -      -           3.05e-04 1.18e-04   70.510 57
CPL  -6.803    0.000      35.7    5.5      8.40e+01 0.00e+00   58.960 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   64.000    0.000   64.000
T90    64.000    0.000   64.000
T50    64.000    0.000   64.000
Peak   64.000    0.000   64.000

Image

Pre-slew 15-350 keV image (Event data; bkg subtracted)

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  297.3724 +30.2773 0.0412   12.2  -42.4       0.3722     4.7  TRIG_00573667       
------------------------------------------
 
Foreground time interval of the image:
  0.000  64.000 (delta_t =  64.000 [sec])
Background time interval of the image:

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    0.000 sec. to   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.93834     ( -0.477776   0.53205 )
Norm@50keV  : 3.05386E-04    ( -0.000118509   0.000117325 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.51 using 59 PHA bins.
# Reduced chi-squared =          1.237 for     57 degrees of freedom 
# Null hypothesis probability =   1.077716e-01
 
Photon flux (15-150 keV)    in 64 sec: 4.45478E-02 ( -0.0140694  0.0140802 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.79253e-07 ( -6.53293e-08  7.05779e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -6.80331     (     )
Epeak [keV] : 35.6732      ( -4.75414 6.21389 )
Norm@50keV  : 84.0114    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.96 using 59 PHA bins.
# Reduced chi-squared =          1.053 for     56 degrees of freedom 
# Null hypothesis probability =   3.676462e-01
 
Photon flux (15-150 keV)    in 64 sec: 4.20121E-02 ( -0.0125152  0.0130924 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.39808e-07 ( -4.05664e-08  4.44557e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -4.72359   -5 )
beta        : -9.37030    ( 9.37167   19.3238 )
Epeak [keV] : 36.2344      ( -5.53135 5.7407 )
Norm@50keV   : 6.31738    ( -1.68097   12.7258 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.14 using 59 PHA bins.
# Reduced chi-squared =          1.075 for     55 degrees of freedom 
# Null hypothesis probability =   3.269621e-01
 
Photon flux (15-150 keV)    in 64 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]    : 9.38815  (-1.82807  2.3579)
R^2/D10^2   : 3.20106E-02  (-0.0190346   0.0414543)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.49 using 59 PHA bins.
# Reduced chi-squared =          1.079 for     57 degrees of freedom 
# Null hypothesis probability =   3.185886e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.588e-08   2.213e-08
25- 50  8.135e-08   4.938e-08
50-150  3.526e-08   2.396e-08
15-150  1.525e-07   9.146e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 53.9267       (-25.3399      98.1769)
Norm        : 0.254789       (-0.0767799     0.0932454)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.84 using 59 PHA bins.
# Reduced chi-squared =          1.190 for     57 degrees of freedom 
# Null hypothesis probability =   1.541684e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.052e-08   2.629e-08
25- 50  5.973e-08   4.589e-08
50-150  6.217e-08   8.755e-08
15-150  1.624e-07   1.581e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.20296        (-9.25625      -9.25625)
R1^2/D10^2  : 2.32511E-03        (-0.00232652      -0.00232652)
kT2 [keV]   : 9.42643        (-9.39396      74.1994)
R2^2/D10^2  : 2.94118E-02    (-0.0294535   -0.0294535)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.49 using 59 PHA bins.
# Reduced chi-squared =          1.118 for     55 degrees of freedom 
# Null hypothesis probability =   2.550396e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.577e-08   2.388e-02
25- 50  8.141e-08   1.972e-01
50-150  3.555e-08   5.498e+00
15-150  1.527e-07   5.270e+00

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.93834     ( -0.477776   0.53205 )
Norm@50keV  : 3.05386E-04    ( -0.000118509   0.000117325 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.51 using 59 PHA bins.
# Reduced chi-squared =          1.237 for     57 degrees of freedom 
# Null hypothesis probability =   1.077716e-01
 
Photon flux (15-150 keV)    in 64 sec: 4.45478E-02 ( -0.0140694  0.0140802 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.79253e-07 ( -6.53293e-08  7.05779e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -6.80331     (     )
Epeak [keV] : 35.6732      ( -4.75414 6.21389 )
Norm@50keV  : 84.0114    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.96 using 59 PHA bins.
# Reduced chi-squared =          1.053 for     56 degrees of freedom 
# Null hypothesis probability =   3.676462e-01
 
Photon flux (15-150 keV)    in 64 sec: 4.20121E-02 ( -0.0125152  0.0130924 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.39808e-07 ( -4.05664e-08  4.44557e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -4.72359   -5 )
beta        : -9.37030    ( 9.37167   19.3238 )
Epeak [keV] : 36.2344      ( -5.53135 5.7407 )
Norm@50keV   : 6.31738    ( -1.68097   12.7258 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.14 using 59 PHA bins.
# Reduced chi-squared =          1.075 for     55 degrees of freedom 
# Null hypothesis probability =   3.269621e-01
 
Photon flux (15-150 keV)    in 64 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]    : 9.38815  (-1.82807  2.3579)
R^2/D10^2   : 3.20106E-02  (-0.0190346   0.0414543)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.49 using 59 PHA bins.
# Reduced chi-squared =          1.079 for     57 degrees of freedom 
# Null hypothesis probability =   3.185886e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.588e-08   2.181e-08
25- 50  8.135e-08   4.680e-08
50-150  3.526e-08   2.460e-08
15-150  1.525e-07   7.857e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 53.9267       (-25.3399      98.1769)
Norm        : 0.254789       (-0.0767799     0.093245)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.84 using 59 PHA bins.
# Reduced chi-squared =          1.190 for     57 degrees of freedom 
# Null hypothesis probability =   1.541684e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.052e-08   2.619e-08
25- 50  5.973e-08   4.362e-08
50-150  6.217e-08   8.467e-08
15-150  1.624e-07   1.524e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.20296        (-9.25625      -9.25625)
R1^2/D10^2  : 2.32511E-03        (-0.00232652      -0.00232652)
kT2 [keV]   : 9.42643        (-9.39396      74.1994)
R2^2/D10^2  : 2.94118E-02    (-0.0294535   -0.0294535)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.49 using 59 PHA bins.
# Reduced chi-squared =          1.118 for     55 degrees of freedom 
# Null hypothesis probability =   2.550396e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.577e-08   2.444e-02
25- 50  8.141e-08   2.291e-01
50-150  3.555e-08   4.995e+00
15-150  1.527e-07   5.139e+00
Plot creation:
Tue Oct  8 11:38:14 EDT 2013