batgrbproduct Analysis for Trigger=514767

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Feb 12 23:10:40 EST 2012
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger514767/GCN5_download_cron
======================================================================

  Trigger: 00514767      Segment: 000

  BAT Trigger Time: 350785647.424   [s; MET]
      Trigger Stop: 350785648.448   [s; MET]
               UTC: 2012-02-13T00:27:19.539240    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 301.032042264378   Dec: 65.3975709325225  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    13.83
     Image Trigger?:     NO
     Rate S/N Ratio:     25.298221281347  [ if not an image trigger ]
     Image S/N Ratio:    13.83

  Flight Position:   [ source = BAT ]
    RA: 301.032042264378   Dec: 65.3975709325225  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 300.98677402785   Dec: 65.4132922753022  [deg; J2000]  
        { 20h 03m 56.8s , +65d 24' 47.9" }
         +/- 0.68969286260005 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.183109748653405 [arcmin] (formal 1-sigma fit error)
    SNR: 51.7142453955038
 
  Angular difference between Flight and Ground position is 1.472289 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 41.0239999890327 +/- 12.7803794789734
        Measured from: -3.43199992179871
                   to: 37.592000067234     [s; relative to TRIGTIME]
     T50: 15.3359999060631 +/- 1.47014016815968
        Measured from: 2.14800012111664
                   to: 17.4840000271797     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 5.4439999461174     
                   to: 6.4439999461174     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -6.31200003623962     
                   to: 74.4599999785423     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.824929   1.556561   0.559534   0.133657
           0.045411   0.045402   0.038541   0.032943 [error]
 Peak      0.090507   0.081369   0.035806   0.006179
           0.005769   0.005708   0.004581   0.003690 [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 5.59e-07 6.08e-07 4.70e-07 5.97e-07 1.86e-06 2.23e-06   erg/cm2
              Error 3.59e-08 2.43e-08 3.61e-08 9.28e-08 8.03e-08 1.30e-07   erg/cm2
Peak flux Power-law 8.09e-01 5.76e-01 2.71e-01 1.79e-01 1.74e+00 1.83e+00   ph/cm2/s
              Error 9.43e-02 4.58e-02 3.76e-02 4.73e-02 1.39e-01 1.46e-01   ph/cm2/s
 
Fluence   Cutoff-PL 5.27e-07 6.34e-07 4.47e-07 2.46e-07 1.85e-06 0.00e+00   erg/cm2
              Error 4.32e-08 3.15e-08 4.39e-08 1.73e-07 2.16e-07 0.00e+00   erg/cm2
Peak flux Cutoff-PL 8.03e-01 5.81e-01 2.70e-01 1.58e-01 1.74e+00 1.81e+00   ph/cm2/s
              Error 1.00e-01 5.47e-02 3.87e-02 8.16e-02 1.43e-01 1.73e-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    2.370    0.090    -      -           2.38e-03 1.27e-04   64.470 57
CPL   1.871    0.000      10.4    0.0      4.60e-03 0.00e+00   59.550 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.089    0.157    -      -           1.11e-02 1.15e-03   50.850 57
CPL   1.989    0.301       4.7   -0.8      1.27e-02 0.00e+00   50.790 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: 15.488000 sec.
T50 in the 50-300 keV band: 7.808000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   80.772   -6.312   74.460
T90    41.024   -3.432   37.592
T50    15.336    2.148   17.484
Peak    1.000    5.444    6.444

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  300.9868 +65.4133 0.0037    5.8  130.7       2.4152    51.7  TRIG_00514767       
------------------------------------------
 
Foreground time interval of the image:
 -6.312  10.677 (delta_t =  16.989 [sec])
Background time interval of the image:
-239.424 -10.794 (delta_t = 228.630 [sec])
-10.424  -6.312 (delta_t =   4.112 [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   -6.312 sec. to   74.460 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.36958     ( -0.0889877   0.090912 )
Norm@50keV  : 2.37809E-03    ( -0.000127836   0.000126724 )
------------------------------------------------------------
# Chi-Squared =          64.47 using 59 PHA bins.
# Reduced chi-squared =          1.131 for     57 degrees of freedom 
# Null hypothesis probability =   2.318432e-01
 
Photon flux (15-150 keV)    in 80.77 sec: 0.432300 ( -0.0185569  0.0186377 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.86113e-06 ( -8.00461e-08  8.05376e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -6.312 sec. to   74.460 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.87150     (     )
Epeak [keV] : 10.4135      (   )
Norm@50keV  : 4.59748E-03    (     )
------------------------------------------------------------
# Chi-Squared =          59.55 using 59 PHA bins.
# Reduced chi-squared =          1.063 for     56 degrees of freedom 
# Null hypothesis probability =   3.476961e-01
 
Photon flux (15-150 keV)    in 80.77 sec: 0.416902 ( -0.021745  0.021854 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.85455e-06 ( -1.66378e-07  2.64837e-07 ) ergs/cm2
 
Band function
Time interval is from   -6.312 sec. to   74.460 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.17150   (     )
beta        : -8.92831    (     )
Epeak [keV] : 60.7371      (   )
Norm@50keV   : 5.72274E-03    (     )
------------------------------------------------------------
# Chi-Squared =         175.85 using 59 PHA bins.
# Reduced chi-squared =         3.1974 for     55 degrees of freedom 
# Null hypothesis probability =   1.467255e-14
 
Photon flux (15-150 keV)    in 80.77 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]    : 8.83669  (  )
R^2/D10^2   : 0.287557  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =         147.97 using 59 PHA bins.
# Reduced chi-squared =         2.5959 for     57 degrees of freedom 
# Null hypothesis probability =   5.113232e-10
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.497e-07   2.411e-08
25- 50  7.221e-07   3.037e-08
50-150  2.604e-07   3.057e-08
15-150  1.332e-06   5.896e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 41.1180       (-4.26408      4.99566)
Norm        : 2.62899       (-0.233967     0.261194)
------------------------------------------------------------
# Chi-Squared =          63.03 using 59 PHA bins.
# Reduced chi-squared =          1.106 for     57 degrees of freedom 
# Null hypothesis probability =   2.717150e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.921e-07   3.150e-08
25- 50  6.550e-07   2.637e-08
50-150  5.221e-07   6.239e-08
15-150  1.669e-06   7.067e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.97333        (-0.821537      0.98081)
R1^2/D10^2  : 2.14914        (-1.04563      2.39968)
kT2 [keV]   : 14.4898        (-2.13022      3.84137)
R2^2/D10^2  : 2.65716E-02    (-0.0174074   0.0293398)
------------------------------------------------------------
# Chi-Squared =          65.85 using 59 PHA bins.
# Reduced chi-squared =          1.197 for     55 degrees of freedom 
# Null hypothesis probability =   1.500956e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.080e-07   8.856e-08
25- 50  6.310e-07   9.963e-08
50-150  5.234e-07   1.342e-07
15-150  1.662e-06   2.710e-07

Peak spectrum fit

Power-law model
Time interval is from    5.444 sec. to    6.444 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.08887     ( -0.15398   0.16019 )
Norm@50keV  : 1.11315E-02    ( -0.00116426   0.00114193 )
------------------------------------------------------------
# Chi-Squared =          50.85 using 59 PHA bins.
# Reduced chi-squared =         0.8921 for     57 degrees of freedom 
# Null hypothesis probability =   7.036460e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.74171 ( -0.139015  0.13907 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.03315e-07 ( -9.72694e-09  9.87783e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    5.444 sec. to    6.444 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.98881     ( -0.57468   0.0280855 )
Epeak [keV] : 4.66793      ( -2.62321 -4.15027 )
Norm@50keV  : 1.27224E-02    (     )
------------------------------------------------------------
# Chi-Squared =          50.79 using 59 PHA bins.
# Reduced chi-squared =         0.9071 for     56 degrees of freedom 
# Null hypothesis probability =   6.716276e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.73594 ( -0.14381  0.14265 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.29e-07 ( -3.12013e-08  2.6436e-08 ) ergs/cm2
 
Band function
Time interval is from    5.444 sec. to    6.444 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.99380   ( -320.069   -310.069 )
beta        : -2.22092    ( -0.207132   0.187091 )
Epeak [keV] : 21.3824      ( -5.30308 2.994 )
Norm@50keV   : 5497.51    ( -3216.88   80161.8 )
------------------------------------------------------------
# Chi-Squared =          47.41 using 59 PHA bins.
# Reduced chi-squared =         0.8620 for     55 degrees of freedom 
# Null hypothesis probability =   7.565701e-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]    : 8.69433  (-0.871713  0.990659)
R^2/D10^2   : 1.33606  (-0.464336   0.703817)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          92.81 using 59 PHA bins.
# Reduced chi-squared =          1.628 for     57 degrees of freedom 
# Null hypothesis probability =   1.911365e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.929e-08   2.555e-09
25- 50  3.882e-08   4.250e-09
50-150  1.331e-08   3.297e-09
15-150  7.142e-08   8.075e-09
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 57.9124       (-12.998      18.7488)
Norm        : 9.17467       (-1.29056     1.46785)
------------------------------------------------------------
# Chi-Squared =          54.25 using 59 PHA bins.
# Reduced chi-squared =         0.9517 for     57 degrees of freedom 
# Null hypothesis probability =   5.790734e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.292e-08   2.505e-09
25- 50  3.450e-08   2.905e-09
50-150  3.811e-08   8.375e-09
15-150  9.553e-08   9.660e-09
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.37420        (-1.23352      1.34451)
R1^2/D10^2  : 6.85058        (-2.38255      5.05076)
kT2 [keV]   : 20.4184        (-6.21889      11.1322)
R2^2/D10^2  : 3.12858E-02    (-0.0127947   0.0363302)
------------------------------------------------------------
# Chi-Squared =          49.33 using 59 PHA bins.
# Reduced chi-squared =         0.8970 for     55 degrees of freedom 
# Null hypothesis probability =   6.899554e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.454e-08   1.286e-08
25- 50  2.972e-08   1.166e-08
50-150  3.999e-08   2.286e-08
15-150  9.426e-08   4.671e-08
Plot creation:
Sun Feb 12 23:28:53 EST 2012