batgrbproduct Analysis for Trigger=557910

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Jun 11 19:42:17 EDT 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger557910/GCN5_download_cron
======================================================================

  Trigger: 00557910      Segment: 000

  BAT Trigger Time: 392612928   [s; MET]
      Trigger Stop: 392613576   [s; MET]
               UTC: 2013-06-11T03:08:37.339780    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 256.093142103249   Dec: -42.7200217284812  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    8.58
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    8.58

  Flight Position:   [ source = BAT ]
    RA: 256.093142103249   Dec: -42.7200217284812  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 256.188007064508   Dec: -42.5127526639543  [deg; J2000]  
        { 17h 04m 45.1s , -42d 30' 45.9" }
         +/- 15.6725662323637 [arcmin] (estimated 90% radius based on SNR)
         +/- 19.5540864222434 [arcmin] (formal 1-sigma fit error)
    SNR: 0.596726548599231
 
  Angular difference between Flight and Ground position is 13.122603 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 648 +/- 
        Measured from: 0
                   to: 648     [s; relative to TRIGTIME]
     T50: 648 +/- 
        Measured from: 0
                   to: 648     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 648 second)
        Measured from: 0     
                   to: 648     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 648     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.023046   0.076215   0.004858  -0.067978
           0.045685   0.043389   0.037460   0.033513 [error]
 Peak      0.023046   0.076215   0.004858  -0.067978
           0.045685   0.043389   0.037460   0.033513 [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 1.11e-08 1.32e-08 1.14e-08 1.69e-08 4.17e-08 4.98e-08   erg/cm2
              Error 1.39e-08 1.58e-08 1.92e-08 2.60e-07 5.54e-08 2.62e-07   erg/cm2
Peak flux Power-law 3.25e-03 2.16e-03 9.33e-04 5.54e-04 6.62e-03 6.89e-03   ph/cm2/s
              Error 4.14e-03 2.56e-03 1.52e-03 5.46e-03 7.71e-03 8.15e-03   ph/cm2/s
 
Fluence   Cutoff-PL 1.47e-08 3.18e-08 9.79e-10 3.44e-15 4.74e-08 4.75e-08   erg/cm2
              Error 1.59e-08 2.51e-08 1.12e-08 2.01e-09 3.51e-08 3.53e-08   erg/cm2
Peak flux Cutoff-PL 4.04e-03 5.49e-03 9.82e-05 1.70e-10 9.62e-03 9.64e-03   ph/cm2/s
              Error 4.47e-03 4.43e-03 9.79e-04 9.34e-05 7.03e-03 7.05e-03   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 9.53e-03 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    2.210    0.000    -      -           3.98e-05 5.37e-05   58.590 57
CPL  -5.285    0.000      31.4    0.0      4.62e+00 0.00e+00   55.710 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.210    0.000    -      -           3.98e-05 5.37e-05   58.590 57
CPL  -5.285    0.000      31.4    0.0      4.62e+00 0.00e+00   55.710 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  648.000    0.000  648.000
T90   648.000    0.000  648.000
T50   648.000    0.000  648.000
Peak  648.000    0.000  648.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  256.1880 -42.5128 0.3207    4.7  142.5       0.0547     0.6  TRIG_00557910       
------------------------------------------
 
Foreground time interval of the image:
  0.000  49.271 (delta_t =  49.271 [sec])
 60.000 122.000 (delta_t =  62.000 [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
Multiple GTIs in the spectrum
tstart tstop
0.000000 49.270500
60.000000 122.000000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.21015     ( -2.21015   -2.21015 )
Norm@50keV  : 3.97518E-05    ( -3.97519e-05   6.75763e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.59 using 59 PHA bins.
# Reduced chi-squared =          1.028 for     57 degrees of freedom 
# Null hypothesis probability =   4.169603e-01
 
Photon flux (15-150 keV)    in 111.3 sec: 6.61615E-03 ( -0.00661615  0.00879726 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.16616e-08 ( -4.16616e-08  6.90639e-08 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
0.000000 49.270500
60.000000 122.000000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -5.28491     (     )
Epeak [keV] : 31.3580      (   )
Norm@50keV  : 4.61897    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.71 using 59 PHA bins.
# Reduced chi-squared =         0.9949 for     56 degrees of freedom 
# Null hypothesis probability =   4.856811e-01
 
Photon flux (15-150 keV)    in 111.3 sec: 9.61852E-03 ( -0.00701963  0.00704858 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.7438e-08 ( -3.45723e-08  3.56296e-08 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
0.000000 49.270500
60.000000 122.000000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -14.2197   -5 )
beta        : -9.36449    ( 9.37165   19.3546 )
Epeak [keV] : 31.4401      ( -11.3796 18.1682 )
Norm@50keV   : 3.28026    ( -3.44224   109.11 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.69 using 59 PHA bins.
# Reduced chi-squared =          1.013 for     55 degrees of freedom 
# Null hypothesis probability =   4.486852e-01
 
Photon flux (15-150 keV)    in 111.3 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]    : 8.02177  (-3.94339  9.85167)
R^2/D10^2   : 1.13328E-02  (-0.0113863   0.126354)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.57 using 59 PHA bins.
# Reduced chi-squared =         0.9924 for     57 degrees of freedom 
# Null hypothesis probability =   4.912412e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.471e-08   1.068e-08
25- 50  2.586e-08   1.896e-08
50-150  6.852e-09   7.552e-09
15-150  4.742e-08   4.121e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 35.3555       (-36.8804      -36.8804)
Norm        : 5.52753E-02       (-0.0551101     -0.0551101)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.92 using 59 PHA bins.
# Reduced chi-squared =          1.016 for     57 degrees of freedom 
# Null hypothesis probability =   4.410148e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.350e-08   1.061e-08
25- 50  1.678e-08   1.347e-08
50-150  1.128e-08   1.738e-08
15-150  4.156e-08   4.208e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.17935        (-8.0791      -8.0791)
R1^2/D10^2  : 1.48493E-03        (-0.00169099      -0.00169099)
kT2 [keV]   : 8.06786        (-8.0254      -8.0254)
R2^2/D10^2  : 9.46347E-03    (-0.00974872   -0.00974872)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.57 using 59 PHA bins.
# Reduced chi-squared =          1.029 for     55 degrees of freedom 
# Null hypothesis probability =   4.161817e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.451e-08   3.147e-02
25- 50  2.585e-08   2.809e-01
50-150  7.023e-09   6.450e+00
15-150  4.738e-08   7.663e+00

Peak spectrum fit

Power-law model
Time interval is from   60.000 sec. to  122.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.21015     ( -2.21015   -2.21015 )
Norm@50keV  : 3.97518E-05    ( -3.97519e-05   6.75763e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.59 using 59 PHA bins.
# Reduced chi-squared =          1.028 for     57 degrees of freedom 
# Null hypothesis probability =   4.169603e-01
 
Photon flux (15-150 keV)    in 111.3 sec: 6.61615E-03 ( -0.00661615  0.00879726 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.16616e-08 ( -4.16616e-08  6.90639e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   60.000 sec. to  122.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -5.28491     (     )
Epeak [keV] : 31.3580      (   )
Norm@50keV  : 4.61897    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.71 using 59 PHA bins.
# Reduced chi-squared =         0.9949 for     56 degrees of freedom 
# Null hypothesis probability =   4.856811e-01
 
Photon flux (15-150 keV)    in 111.3 sec: 9.61852E-03 ( -0.00701963  0.00704858 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.7438e-08 ( -3.45723e-08  3.56296e-08 ) ergs/cm2
 
Band function
Time interval is from   60.000 sec. to  122.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -7.34729   -5 )
beta        : -9.36449    ( 9.37165   19.3546 )
Epeak [keV] : 31.4401      ( -11.3796 18.1682 )
Norm@50keV   : 3.28026    ( -3.44224   109.11 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.69 using 59 PHA bins.
# Reduced chi-squared =          1.013 for     55 degrees of freedom 
# Null hypothesis probability =   4.486852e-01
 
Photon flux (15-150 keV)    in 111.3 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]    : 8.02177  (-3.94715  9.85172)
R^2/D10^2   : 1.13328E-02  (-0.0113863   0.126354)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.57 using 59 PHA bins.
# Reduced chi-squared =         0.9924 for     57 degrees of freedom 
# Null hypothesis probability =   4.912412e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.471e-08   1.037e-08
25- 50  2.586e-08   1.967e-08
50-150  6.852e-09   7.546e-09
15-150  4.742e-08   4.174e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 35.3555       (-36.8804      -36.8804)
Norm        : 5.52753E-02       (-0.0551101     -0.0551101)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.92 using 59 PHA bins.
# Reduced chi-squared =          1.016 for     57 degrees of freedom 
# Null hypothesis probability =   4.410148e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.350e-08   9.906e-09
25- 50  1.678e-08   1.406e-08
50-150  1.128e-08   1.745e-08
15-150  4.156e-08   3.316e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.17935        (-8.0791      -8.0791)
R1^2/D10^2  : 1.48493E-03        (-0.00169099      -0.00169099)
kT2 [keV]   : 8.06786        (-8.0254      -8.0254)
R2^2/D10^2  : 9.46347E-03    (-0.00974872   -0.00974872)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.57 using 59 PHA bins.
# Reduced chi-squared =          1.029 for     55 degrees of freedom 
# Null hypothesis probability =   4.161817e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.451e-08   2.886e-02
25- 50  2.585e-08   2.929e-01
50-150  7.023e-09   6.467e+00
15-150  4.738e-08   7.685e+00
Plot creation:
Tue Jun 11 19:48:21 EDT 2013