batgrbproduct Analysis for Trigger=521567

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat May  5 10:19:58 EDT 2012
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger521567/GCN5_download_cron
======================================================================

  Trigger: 00521567      Segment: 000

  BAT Trigger Time: 357875088   [s; MET]
      Trigger Stop: 357875408   [s; MET]
               UTC: 2012-05-05T01:44:39.827060    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 281.23396535837   Dec: -4.59137274041935  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    7.26
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    7.26

  Flight Position:   [ source = BAT ]
    RA: 281.23396535837   Dec: -4.59137274041935  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 281.306764408642   Dec: -4.60208074377184  [deg; J2000]  
        { 18h 45m 13.6s , -04d 36' 07.5" }
         +/- 3.6087401294147 [arcmin] (estimated 90% radius based on SNR)
         +/- 3.64653858439904 [arcmin] (formal 1-sigma fit error)
    SNR: 4.86290831404815
 
  Angular difference between Flight and Ground position is 4.401042 arcmin
 
  Partial Coding Fraction: 0.3945312    [ including projection effects ]

  Duration
     T90: 320 +/- 
        Measured from: 0
                   to: 320     [s; relative to TRIGTIME]
     T50: 320 +/- 
        Measured from: 0
                   to: 320     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 320 second)
        Measured from: 0     
                   to: 320     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 320     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.884399   0.760672   0.192234  -0.070768
           0.194706   0.172036   0.142579   0.122905 [error]
 Peak      0.884399   0.760672   0.192234  -0.070768
           0.194706   0.172036   0.142579   0.122905 [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 3.12e-07 3.20e-07 2.31e-07 2.67e-07 9.67e-07 1.13e-06   erg/cm2
              Error 1.00e-07 8.99e-08 1.21e-07 3.15e-07 2.95e-07 4.52e-07   erg/cm2
Peak flux Power-law 3.21e-02 1.83e-02 6.62e-03 3.15e-03 5.88e-02 6.02e-02   ph/cm2/s
              Error 1.05e-02 5.01e-03 3.36e-03 3.51e-03 1.51e-02 1.55e-02   ph/cm2/s
 
Fluence   Cutoff-PL 2.92e-07 3.86e-07 1.29e-07 6.13e-09 8.13e-07 0.00e+00   erg/cm2
              Error 1.12e-07 1.28e-07 1.63e-07 1.20e-07 4.36e-07 0.00e+00   erg/cm2
Peak flux Cutoff-PL 2.94e-02 2.23e-02 4.04e-03 1.05e-04 5.58e-02 5.58e-02   ph/cm2/s
              Error 1.18e-02 7.31e-03 4.68e-03 2.08e-03 1.54e-02 1.54e-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    2.470    0.532    -      -           3.05e-04 1.19e-04   74.540 57
CPL   0.634    4.042      25.1    0.0      4.79e-03 0.00e+00   72.980 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.470    0.532    -      -           3.05e-04 1.19e-04   74.540 57
CPL   0.634    4.042      25.1    0.0      4.79e-03 0.00e+00   72.980 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  320.000    0.000  320.000
T90   320.000    0.000  320.000
T50   320.000    0.000  320.000
Peak  320.000    0.000  320.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  281.3068  -4.6021 0.0393   39.4 -136.2       2.2969     4.9  TRIG_00521567       
------------------------------------------
 
Foreground time interval of the image:
  0.000 320.000 (delta_t = 320.000 [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  320.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.46950     ( -0.484607   0.579727 )
Norm@50keV  : 3.04725E-04    ( -0.000119409   0.000118386 )
------------------------------------------------------------
# Chi-Squared =          74.54 using 59 PHA bins.
# Reduced chi-squared =          1.308 for     57 degrees of freedom 
# Null hypothesis probability =   5.933700e-02
 
Photon flux (15-150 keV)    in 320 sec: 5.87613E-02 ( -0.0151198  0.0151258 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.67296e-07 ( -2.86668e-07  3.04271e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to  320.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.633556     ( -6.68834   1.39496 )
Epeak [keV] : 25.1207      (   )
Norm@50keV  : 4.79347E-03    (     )
------------------------------------------------------------
# Chi-Squared =          72.98 using 59 PHA bins.
# Reduced chi-squared =          1.303 for     56 degrees of freedom 
# Null hypothesis probability =   6.328327e-02
 
Photon flux (15-150 keV)    in 320 sec: 5.57692E-02 ( -0.0152674  0.0155223 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.13366e-07 ( -2.4775e-07  6.24442e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to  320.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.79519   ( -11.2894   -11.2894 )
beta        : -3.10370    ( 3.10354   0.836705 )
Epeak [keV] : 24.5651      ( -24.5651 6.74667 )
Norm@50keV   : 62.2674    ( -62.265   17.7198 )
------------------------------------------------------------
# Chi-Squared =          72.46 using 59 PHA bins.
# Reduced chi-squared =          1.317 for     55 degrees of freedom 
# Null hypothesis probability =   5.738776e-02
 
Photon flux (15-150 keV)    in 320 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]    : 7.25393  (-1.64623  2.1382)
R^2/D10^2   : 9.82043E-02  (-0.0654481   0.195997)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          73.30 using 59 PHA bins.
# Reduced chi-squared =          1.286 for     57 degrees of freedom 
# Null hypothesis probability =   7.178874e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.752e-07   1.474e-07
25- 50  4.035e-07   2.496e-07
50-150  7.593e-08   5.549e-08
15-150  7.547e-07   4.265e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 31.5896       (-13.468      30.5195)
Norm        : 0.457196       (-0.19249     0.364308)
------------------------------------------------------------
# Chi-Squared =          73.24 using 59 PHA bins.
# Reduced chi-squared =          1.285 for     57 degrees of freedom 
# Null hypothesis probability =   7.249715e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.054e-07   1.124e-07
25- 50  3.589e-07   1.511e-07
50-150  2.101e-07   1.586e-07
15-150  8.744e-07   3.600e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.46731        (-6.47137      2.54163)
R1^2/D10^2  : 0.143203        (-0.143027      -0.143027)
kT2 [keV]   : 21.8957        (-21.9901      -21.9901)
R2^2/D10^2  : 3.37025E-04    (-0.00033213   0.245861)
------------------------------------------------------------
# Chi-Squared =          72.52 using 59 PHA bins.
# Reduced chi-squared =          1.319 for     55 degrees of freedom 
# Null hypothesis probability =   5.675426e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.911e-07   1.699e-07
25- 50  3.796e-07   2.317e-07
50-150  2.217e-07   1.217e-07
15-150  8.924e-07   4.789e-07

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to  320.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.46950     ( -0.484607   0.579727 )
Norm@50keV  : 3.04725E-04    ( -0.000119409   0.000118386 )
------------------------------------------------------------
# Chi-Squared =          74.54 using 59 PHA bins.
# Reduced chi-squared =          1.308 for     57 degrees of freedom 
# Null hypothesis probability =   5.933700e-02
 
Photon flux (15-150 keV)    in 320 sec: 5.87613E-02 ( -0.0151198  0.0151258 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.67296e-07 ( -2.86668e-07  3.04271e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to  320.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.633556     ( -6.68834   1.39496 )
Epeak [keV] : 25.1207      (   )
Norm@50keV  : 4.79347E-03    (     )
------------------------------------------------------------
# Chi-Squared =          72.98 using 59 PHA bins.
# Reduced chi-squared =          1.303 for     56 degrees of freedom 
# Null hypothesis probability =   6.328327e-02
 
Photon flux (15-150 keV)    in 320 sec: 5.57692E-02 ( -0.0152674  0.0155223 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.13366e-07 ( -2.4775e-07  6.24442e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to  320.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.79519   ( -11.2894   -11.2894 )
beta        : -3.10370    ( 3.10354   0.836705 )
Epeak [keV] : 24.5651      ( -24.5651 6.74667 )
Norm@50keV   : 62.2674    ( -62.265   17.7198 )
------------------------------------------------------------
# Chi-Squared =          72.46 using 59 PHA bins.
# Reduced chi-squared =          1.317 for     55 degrees of freedom 
# Null hypothesis probability =   5.738776e-02
 
Photon flux (15-150 keV)    in 320 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]    : 7.25393  (-1.64623  2.1382)
R^2/D10^2   : 9.82043E-02  (-0.0654481   0.195997)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          73.30 using 59 PHA bins.
# Reduced chi-squared =          1.286 for     57 degrees of freedom 
# Null hypothesis probability =   7.178874e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.752e-07   1.669e-07
25- 50  4.035e-07   2.504e-07
50-150  7.593e-08   5.671e-08
15-150  7.547e-07   4.215e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 31.5896       (-13.468      30.5195)
Norm        : 0.457196       (-0.19249     0.364308)
------------------------------------------------------------
# Chi-Squared =          73.24 using 59 PHA bins.
# Reduced chi-squared =          1.285 for     57 degrees of freedom 
# Null hypothesis probability =   7.249715e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.054e-07   1.208e-07
25- 50  3.589e-07   1.742e-07
50-150  2.101e-07   1.589e-07
15-150  8.744e-07   3.901e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.46731        (-6.47137      2.54163)
R1^2/D10^2  : 0.143203        (-0.143027      -0.143027)
kT2 [keV]   : 21.8957        (-21.9901      -21.9901)
R2^2/D10^2  : 3.37025E-04    (-0.00033213   0.245861)
------------------------------------------------------------
# Chi-Squared =          72.52 using 59 PHA bins.
# Reduced chi-squared =          1.319 for     55 degrees of freedom 
# Null hypothesis probability =   5.675426e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.911e-07   1.742e-07
25- 50  3.796e-07   2.450e-07
50-150  2.217e-07   1.365e-07
15-150  8.924e-07   5.136e-07
Plot creation:
Sat May  5 10:38:03 EDT 2012