batgrbproduct Analysis for Trigger=568849

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Sep  1 11:06:27 EDT 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger568849/GCN5_download_cron
======================================================================

  Trigger: 00568849      Segment: 000

  BAT Trigger Time: 399647067.52   [s; MET]
      Trigger Stop: 399647068.032   [s; MET]
               UTC: 2013-08-31T13:04:16.543620    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 358.64872508801   Dec: 29.4481629872927  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.54
     Image Trigger?:     NO
     Rate S/N Ratio:     19.3907194296653  [ if not an image trigger ]
     Image S/N Ratio:    10.54

  Flight Position:   [ source = BAT ]
    RA: 358.64872508801   Dec: 29.4481629872927  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 358.635570661424   Dec: 29.4310291184841  [deg; J2000]  
        { 23h 54m 32.5s , +29d 25' 51.7" }
         +/- 0.674947444727218 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.214351463012176 [arcmin] (formal 1-sigma fit error)
    SNR: 53.3357542065711
 
  Angular difference between Flight and Ground position is 1.236649 arcmin
 
  Partial Coding Fraction: 0.28125    [ including projection effects ]

  Duration
     T90: 32.5199999809265 +/- 1.86433148597529
        Measured from: 0.620000123977661
                   to: 33.1400001049042     [s; relative to TRIGTIME]
     T50: 8.06399995088577 +/- 0.755195368872199
        Measured from: 2.42000013589859
                   to: 10.4840000867844     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 2.2960000038147     
                   to: 3.2960000038147     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -1.7039999961853     
                   to: 41.37600004673     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     3.503989   4.205755   2.471803   0.583395
           0.068115   0.072139   0.061390   0.046028 [error]
 Peak      0.404031   0.579708   0.392061   0.102341
           0.016944   0.019525   0.017323   0.011175 [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 1.36e-06 1.93e-06 2.02e-06 3.91e-06 6.54e-06 9.22e-06   erg/cm2
              Error 6.49e-08 5.22e-08 6.65e-08 2.88e-07 1.62e-07 3.28e-07   erg/cm2
Peak flux Power-law 5.10e+00 4.56e+00 2.80e+00 2.62e+00 1.36e+01 1.51e+01   ph/cm2/s
              Error 3.72e-01 2.01e-01 1.47e-01 2.81e-01 5.90e-01 6.13e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.34e-06 1.93e-06 2.03e-06 3.78e-06 6.55e-06 9.09e-06   erg/cm2
              Error 7.81e-08 5.52e-08 6.34e-08 6.11e-07 1.91e-07 6.40e-07   erg/cm2
Peak flux Cutoff-PL 4.93e+00 4.62e+00 2.85e+00 2.20e+00 1.34e+01 1.46e+01   ph/cm2/s
              Error 4.54e-01 2.24e-01 1.65e-01 5.78e-01 6.20e-01 9.03e-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 1.47e+01 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    1.930    0.049    -      -           1.65e-02 4.12e-04   56.090 57
CPL   1.909    0.203     221.7    0.0      1.69e-02 0.00e+00   56.050 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.702    0.073    -      -           1.02e-01 4.27e-03   57.050 57
CPL   1.540    0.239     147.7    0.0      1.23e-01 0.00e+00   55.950 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: 20.800000 sec.
T50 in the 50-300 keV band: 5.440000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   43.080   -1.704   41.376
T90    32.520    0.620   33.140
T50     8.064    2.420   10.484
Peak    1.000    2.296    3.296

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  358.6356 +29.4310 0.0036   41.6   28.7       7.7544    53.3  TRIG_00568849       
------------------------------------------
 
Foreground time interval of the image:
 -1.704   7.881 (delta_t =   9.585 [sec])
Background time interval of the image:
-239.520 -18.528 (delta_t = 220.992 [sec])
-17.520  -1.704 (delta_t =  15.816 [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   -1.704 sec. to   41.376 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.93021     ( -0.0484255   0.0486776 )
Norm@50keV  : 1.64967E-02    ( -0.000412561   0.00041187 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.09 using 59 PHA bins.
# Reduced chi-squared =         0.9840 for     57 degrees of freedom 
# Null hypothesis probability =   5.093174e-01
 
Photon flux (15-150 keV)    in 43.08 sec: 2.39840 ( -0.0700658  0.0704497 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.53674e-06 ( -1.62001e-07  1.62095e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -1.704 sec. to   41.376 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.90871     ( -0.187091   0.21928 )
Epeak [keV] : 221.666      (   )
Norm@50keV  : 1.68914E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.05 using 59 PHA bins.
# Reduced chi-squared =          1.001 for     56 degrees of freedom 
# Null hypothesis probability =   4.730716e-01
 
Photon flux (15-150 keV)    in 43.08 sec: 2.38113 ( -0.07424  0.08107 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.54691e-06 ( -2.16994e-07  1.64523e-07 ) ergs/cm2
 
Band function
Time interval is from   -1.704 sec. to   41.376 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.16865   ( -1.22334   6.06081 )
beta        : -1.97027    ( -0.0406274   0.0658372 )
Epeak [keV] : 35.4401      ( -15.0916 55.9341 )
Norm@50keV   : 5.03619E-02    ( -0.0540107   2805.59 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.26 using 59 PHA bins.
# Reduced chi-squared =         0.9684 for     55 degrees of freedom 
# Null hypothesis probability =   5.413676e-01
 
Photon flux (15-150 keV)    in 43.08 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]    : 13.1629  (  )
R^2/D10^2   : 0.365019  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         510.04 using 59 PHA bins.
# Reduced chi-squared =         8.9480 for     57 degrees of freedom 
# Null hypothesis probability =   5.225818e-74
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.777e-07   2.736e-08
25- 50  2.016e-06   6.354e-08
50-150  2.225e-06   1.049e-07
15-150  4.819e-06   1.292e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 95.7604       (-8.29224      9.62937)
Norm        : 10.2129       (-0.435207     0.460803)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          81.47 using 59 PHA bins.
# Reduced chi-squared =          1.429 for     57 degrees of freedom 
# Null hypothesis probability =   1.841412e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.150e-06   6.936e-08
25- 50  1.970e-06   6.419e-08
50-150  3.114e-06   6.785e-07
15-150  6.234e-06   6.936e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.26916        (-0.497096      0.510447)
R1^2/D10^2  : 2.67318        (-0.592123      0.818466)
kT2 [keV]   : 27.7640        (-2.60382      3.27481)
R2^2/D10^2  : 1.63203E-02    (-0.00542094   0.00735132)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.44 using 59 PHA bins.
# Reduced chi-squared =          1.117 for     55 degrees of freedom 
# Null hypothesis probability =   2.562885e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.104e-06   7.970e-08
25- 50  2.024e-06   8.336e-08
50-150  3.245e-06   2.503e-07
15-150  6.372e-06   3.253e-07

Peak spectrum fit

Power-law model
Time interval is from    2.296 sec. to    3.296 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.70183     ( -0.0728158   0.0734859 )
Norm@50keV  : 0.102107    ( -0.00427648   0.00426038 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.05 using 59 PHA bins.
# Reduced chi-squared =          1.001 for     57 degrees of freedom 
# Null hypothesis probability =   4.733554e-01
 
Photon flux (15-150 keV)    in 1 sec: 13.5697 ( -0.589587  0.590919 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.45258e-07 ( -4.10542e-08  4.11358e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    2.296 sec. to    3.296 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.53951     ( -0.278879   0.199491 )
Epeak [keV] : 147.656      (   )
Norm@50keV  : 0.122613    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.95 using 59 PHA bins.
# Reduced chi-squared =         0.9991 for     56 degrees of freedom 
# Null hypothesis probability =   4.766776e-01
 
Photon flux (15-150 keV)    in 1 sec: 13.4456 ( -0.6194  0.621 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.37021e-07 ( -4.3705e-08  4.3501e-08 ) ergs/cm2
 
Band function
Time interval is from    2.296 sec. to    3.296 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.572052   ( -0.98128   5.6826 )
beta        : -1.78129    ( -0.142005   0.104924 )
Epeak [keV] : 41.0132      ( -17.1819 307.777 )
Norm@50keV   : 0.543174    ( -0.553996   9310.05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.92 using 59 PHA bins.
# Reduced chi-squared =         0.9804 for     55 degrees of freedom 
# Null hypothesis probability =   5.157895e-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]    : 13.9489  (  )
R^2/D10^2   : 1.85587  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         228.79 using 59 PHA bins.
# Reduced chi-squared =         4.0139 for     57 degrees of freedom 
# Null hypothesis probability =   1.923998e-22
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.630e-08   6.530e-09
25- 50  2.828e-07   1.440e-08
50-150  3.616e-07   2.880e-08
15-150  7.207e-07   3.365e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 143.518       (      )
Norm        : 55.9222       (-3.04139     2.9522)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.26 using 59 PHA bins.
# Reduced chi-squared =          1.022 for     57 degrees of freedom 
# Null hypothesis probability =   4.286247e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.418e-07   9.600e-09
25- 50  2.627e-07   1.735e-08
50-150  5.187e-07   1.402e-07
15-150  9.232e-07   1.523e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.22798        (-0.757451      0.800826)
R1^2/D10^2  : 14.4468        (-4.4364      7.05125)
kT2 [keV]   : 28.0753        (-3.45018      4.71505)
R2^2/D10^2  : 0.113100    (-0.0479728   0.0709897)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.34 using 59 PHA bins.
# Reduced chi-squared =         0.9334 for     55 degrees of freedom 
# Null hypothesis probability =   6.153033e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.397e-07   1.905e-08
25- 50  2.693e-07   2.405e-08
50-150  5.296e-07   8.640e-08
15-150  9.387e-07   9.450e-08
Plot creation:
Sun Sep  1 11:29:39 EDT 2013