batgrbproduct Analysis for Trigger=324122

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Jul 27 14:52:59 EDT 2011
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger324122/SDC
======================================================================

  Trigger: 00324122      Segment: 000

  BAT Trigger Time: 242556592   [s; MET]
      Trigger Stop: 242557928   [s; MET]
               UTC: 2008-09-08T08:49:48.918640    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 280.588324765585   Dec: -11.4939461146614  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    7.79
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    7.79

  Flight Position:   [ source = BAT ]
    RA: 280.588324765585   Dec: -11.4939461146614  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 280.575399641948   Dec: -11.397291431219  [deg; J2000]  
        { 18h 42m 18.1s , -11d 23' 50.2" }
         +/- 2.66070991742972 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.61999518557111 [arcmin] (formal 1-sigma fit error)
    SNR: 7.51586643658941
 
  Angular difference between Flight and Ground position is 5.848879 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 1336 +/- 
        Measured from: 0
                   to: 1336     [s; relative to TRIGTIME]
     T50: 1336 +/- 
        Measured from: 0
                   to: 1336     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 1336 second)
        Measured from: 0     
                   to: 1336     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 1336     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.649168   0.522715   0.276999   0.086468
           0.100222   0.094244   0.081059   0.069744 [error]
 Peak      0.649168   0.522715   0.276999   0.086468
           0.100222   0.094244   0.081059   0.069744 [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 1.66e-07 2.17e-07 2.08e-07 3.53e-07 7.08e-07 9.44e-07   erg/cm2
              Error 4.18e-08 4.17e-08 7.39e-08 2.50e-07 1.68e-07 3.36e-07   erg/cm2
Peak flux Power-law 1.36e-02 9.87e-03 4.72e-03 3.19e-03 2.98e-02 3.14e-02   ph/cm2/s
              Error 3.51e-03 1.86e-03 1.62e-03 2.09e-03 5.50e-03 5.94e-03   ph/cm2/s
 
Fluence   Cutoff-PL 1.62e-07 2.27e-07 2.01e-07 1.70e-07 6.77e-07 7.61e-07   erg/cm2
              Error 4.49e-08 5.48e-08 8.63e-08 3.21e-07 1.90e-07 4.03e-07   erg/cm2
Peak flux Cutoff-PL 1.33e-02 1.03e-02 4.62e-03 1.78e-03 2.93e-02 3.00e-02   ph/cm2/s
              Error 3.37e-03 2.43e-03 1.85e-03 2.78e-03 5.70e-03 6.69e-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 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    2.063    0.378    -      -           1.93e-04 4.97e-05   57.510 57
CPL   1.690    1.146      33.0    0.0      3.22e-04 0.00e+00   57.320 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.063    0.378    -      -           1.93e-04 4.97e-05   57.510 57
CPL   1.690    1.146      33.0    0.0      3.22e-04 0.00e+00   57.320 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 1336.000    0.000 1336.000
T90  1336.000    0.000 1336.000
T50  1336.000    0.000 1336.000
Peak 1336.000    0.000 1336.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  280.5754 -11.3973 0.0256   10.1  -30.7       1.7014     7.5  TRIG_00324122       
------------------------------------------
 
Foreground time interval of the image:
566.000 963.080 (delta_t = 397.080 [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  566.000 sec. to  963.080 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.06293     ( -0.355427   0.399801 )
Norm@50keV  : 1.92555E-04    ( -5.07469e-05   4.86517e-05 )
------------------------------------------------------------
# Chi-Squared =          57.51 using 59 PHA bins.
# Reduced chi-squared =          1.009 for     57 degrees of freedom 
# Null hypothesis probability =   4.563169e-01
 
Photon flux (15-150 keV)    in 397.1 sec: 2.97514E-02 ( -0.00550011  0.00550014 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.08093e-07 ( -1.63693e-07  1.72533e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  566.000 sec. to  963.080 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.68980     ( -1.89267   0.398653 )
Epeak [keV] : 32.9686      (   )
Norm@50keV  : 3.22144E-04    (     )
------------------------------------------------------------
# Chi-Squared =          57.32 using 59 PHA bins.
# Reduced chi-squared =          1.024 for     56 degrees of freedom 
# Null hypothesis probability =   4.260763e-01
 
Photon flux (15-150 keV)    in 397.1 sec: 2.93347E-02 ( -0.0056928  0.0056999 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.77099e-07 ( -1.83282e-07  1.96989e-07 ) ergs/cm2
 
Band function
Time interval is from  566.000 sec. to  963.080 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.59245   ( 1.59276   1.59276 )
beta        : -2.60921    ( 2.59649   4.91113 )
Epeak [keV] : 34.5849      ( -33.8807 -33.8807 )
Norm@50keV   : 3.66047E-04    ( -0.000158658   0 )
------------------------------------------------------------
# Chi-Squared =          57.30 using 59 PHA bins.
# Reduced chi-squared =          1.042 for     55 degrees of freedom 
# Null hypothesis probability =   3.898811e-01
 
Photon flux (15-150 keV)    in 397.1 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]    : 9.10421  (-2.00817  2.56443)
R^2/D10^2   : 1.95193E-02  (-0.0119433   0.0318899)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          63.52 using 59 PHA bins.
# Reduced chi-squared =          1.114 for     57 degrees of freedom 
# Null hypothesis probability =   2.575041e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.258e-07   4.610e-08
25- 50  2.723e-07   9.517e-08
50-150  1.076e-07   6.401e-08
15-150  5.056e-07   1.543e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 57.7195       (-24.741      62.3535)
Norm        : 0.158361       (-0.0442144     0.0661069)
------------------------------------------------------------
# Chi-Squared =          57.47 using 59 PHA bins.
# Reduced chi-squared =          1.008 for     57 degrees of freedom 
# Null hypothesis probability =   4.577937e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.570e-07   3.870e-08
25- 50  2.361e-07   6.199e-08
50-150  2.600e-07   1.442e-07
15-150  6.532e-07   2.167e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.75038        (-2.84078      3.35038)
R1^2/D10^2  : 0.166558        (-0.13967      19.9167)
kT2 [keV]   : 15.8973        (-6.03672      44.061)
R2^2/D10^2  : 1.67701E-03    (-0.00164815   0.0111511)
------------------------------------------------------------
# Chi-Squared =          57.33 using 59 PHA bins.
# Reduced chi-squared =          1.042 for     55 degrees of freedom 
# Null hypothesis probability =   3.886666e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.653e-07   9.292e-08
25- 50  2.208e-07   1.132e-07
50-150  2.593e-07   1.616e-07
15-150  6.454e-07   3.344e-07

Peak spectrum fit

Power-law model
Time interval is from  566.000 sec. to  963.080 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.06293     ( -0.355427   0.399801 )
Norm@50keV  : 1.92555E-04    ( -5.07469e-05   4.86517e-05 )
------------------------------------------------------------
# Chi-Squared =          57.51 using 59 PHA bins.
# Reduced chi-squared =          1.009 for     57 degrees of freedom 
# Null hypothesis probability =   4.563169e-01
 
Photon flux (15-150 keV)    in 397.1 sec: 2.97514E-02 ( -0.00550011  0.00550014 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.08093e-07 ( -1.63693e-07  1.72533e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  566.000 sec. to  963.080 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.68980     ( -1.89267   0.398653 )
Epeak [keV] : 32.9686      (   )
Norm@50keV  : 3.22144E-04    (     )
------------------------------------------------------------
# Chi-Squared =          57.32 using 59 PHA bins.
# Reduced chi-squared =          1.024 for     56 degrees of freedom 
# Null hypothesis probability =   4.260763e-01
 
Photon flux (15-150 keV)    in 397.1 sec: 2.93347E-02 ( -0.0056928  0.0056999 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.77099e-07 ( -1.83282e-07  1.96989e-07 ) ergs/cm2
 
Band function
Time interval is from  566.000 sec. to  963.080 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.59245   ( 1.59276   1.59276 )
beta        : -2.60921    ( 2.59649   4.91113 )
Epeak [keV] : 34.5849      ( -33.8807 -33.8807 )
Norm@50keV   : 3.66047E-04    ( -0.000158658   0 )
------------------------------------------------------------
# Chi-Squared =          57.30 using 59 PHA bins.
# Reduced chi-squared =          1.042 for     55 degrees of freedom 
# Null hypothesis probability =   3.898811e-01
 
Photon flux (15-150 keV)    in 397.1 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]    : 9.10421  (-2.00817  2.56443)
R^2/D10^2   : 1.95193E-02  (-0.0119433   0.0318899)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          63.52 using 59 PHA bins.
# Reduced chi-squared =          1.114 for     57 degrees of freedom 
# Null hypothesis probability =   2.575041e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.258e-07   4.541e-08
25- 50  2.723e-07   1.031e-07
50-150  1.076e-07   5.829e-08
15-150  5.056e-07   1.746e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 57.7195       (-24.741      62.3535)
Norm        : 0.158361       (-0.0442144     0.0661069)
------------------------------------------------------------
# Chi-Squared =          57.47 using 59 PHA bins.
# Reduced chi-squared =          1.008 for     57 degrees of freedom 
# Null hypothesis probability =   4.577937e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.570e-07   4.334e-08
25- 50  2.361e-07   7.974e-08
50-150  2.600e-07   1.624e-07
15-150  6.532e-07   2.255e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.75038        (-2.84078      3.35038)
R1^2/D10^2  : 0.166558        (-0.13967      19.9167)
kT2 [keV]   : 15.8973        (-6.03672      44.061)
R2^2/D10^2  : 1.67701E-03    (-0.00164815   0.0111511)
------------------------------------------------------------
# Chi-Squared =          57.33 using 59 PHA bins.
# Reduced chi-squared =          1.042 for     55 degrees of freedom 
# Null hypothesis probability =   3.886666e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.653e-07   9.165e-08
25- 50  2.208e-07   1.136e-07
50-150  2.593e-07   1.600e-07
15-150  6.454e-07   3.377e-07
Plot creation:
Wed Jul 27 15:20:22 EDT 2011