batgrbproduct Analysis for Trigger=213630

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.41
    Process Start Time (local time): Tue Jan  1 15:50:09 EST 2008
             Host Name: gcn5
   Current Working Dir: /local/data/raid2/prebascript/trigger213630/SDC
======================================================================

  Trigger: 00213630      Segment: 000

  BAT Trigger Time: 171224145.856   [s; MET]
      Trigger Stop: 171224148.928   [s; MET]
               UTC: 2006-06-05T18:15:44.618460    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 322.143864682533   Dec: -6.06022138273773  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.96
     Image Trigger?:     NO
     Rate S/N Ratio:     15.9059737205869  [ if not an image trigger ]
     Image S/N Ratio:    7.96

  Flight Position:   [ source = BAT ]
    RA: 322.143864682533   Dec: -6.06022138273773  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 322.135454431477   Dec: -6.05778400262333  [deg; J2000]  
        { 21h 28m 32.5s , -06d 03' 28.0" }
         +/- 2.18733226448093 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.849085377571422 [arcmin] (formal 1-sigma fit error)
    SNR: 9.94319294746551
    RA  =  21h 28m 32.5s  (322.135454 deg.)
    Dec =  -6d  3' 28" (-6.057784 deg.)
 
  Angular difference between Flight and Ground position is 0.522672 arcmin
 
  Partial Coding Fraction: 0.875    [ including projection effects ]

  Duration
     T90: 114.799999952316 +/- 35.0141649091828
        Measured from: -101.055999994278
                   to: 13.7439999580383     [s; relative to TRIGTIME]
     T50: 62.1919999718666 +/- 23.2679501553205
        Measured from: -55.3120000064373
                   to: 6.87999996542931     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 2.11599999666214     
                   to: 3.11599999666214     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -116.048000007868     
                   to: 15.9679999947548     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.334135   0.511045   0.366265   0.082447
           0.053805   0.054638   0.048776   0.043978 [error]
 Peak      0.010514   0.020859   0.023888   0.013070
           0.004781   0.005073   0.004635   0.004028 [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 1.03e-07 1.93e-07 2.78e-07 8.50e-07 7.91e-07 1.42e-06   erg/cm2
              Error 2.15e-08 2.48e-08 4.72e-08 3.09e-07 1.14e-07 3.47e-07   erg/cm2
Peak flux Power-law 9.61e-02 1.38e-01 1.48e-01 2.95e-01 4.74e-01 6.78e-01   ph/cm2/s
              Error 4.87e-02 4.28e-02 3.51e-02 1.59e-01 1.13e-01 1.72e-01   ph/cm2/s
 
Fluence   Cutoff-PL 9.33e-08 2.09e-07 2.86e-07 3.04e-07 7.44e-07 8.85e-07   erg/cm2
              Error 2.52e-08 3.28e-08 5.32e-08 5.17e-07 1.29e-07 4.92e-07   erg/cm2
Peak flux Cutoff-PL 8.30e-02 1.42e-01 1.59e-01 1.81e-01 4.66e-01 5.65e-01   ph/cm2/s
              Error 6.09e-02 4.76e-02 4.79e-02 2.18e-01 1.17e-01 2.43e-01   ph/cm2/s
 
Fluence        Band 9.17e-08 2.09e-07 2.83e-07 4.36e-07 7.43e-07 9.44e-07   erg/cm2
              Error 1.90e-08 3.45e-08 5.82e-08 3.66e-07 1.26e-07 0.00e+00   erg/cm2
Peak flux      Band 7.63e-02 1.45e-01 1.60e-01 2.18e-01 4.59e-01 6.10e-01   ph/cm2/s
              Error 6.29e-02 3.89e-02 4.57e-02 1.71e-01 1.13e-01 2.67e-01   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.473    0.219    -      -           6.29e-04 8.10e-05   81.362 57
CPL   0.780    0.983      84.5 4972.0      1.45e-03 2.83e-03   79.541  0
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.901    0.421    -      -           4.13e-03 9.84e-04   55.996 57
CPL   0.894    0.424    9992.7    0.0      4.16e-03 0.00e+00   55.990 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: 8.768000 sec.
T50 in the 50-300 keV band: 4.928000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  132.016 -116.048   15.968
T90   114.800 -101.056   13.744
T50    62.192  -55.312    6.880
Peak    1.000    2.116    3.116

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  322.1355  -6.0578 0.0194   15.8  128.1       1.3938     9.9  TRIG_00213630       
------------------------------------------
 
Foreground time interval of the image:
-116.048  15.968 (delta_t = 132.016 [sec])
Background time interval of the image:
-239.856 -116.048 (delta_t = 123.808 [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 -116.048 sec. to   15.968 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.47316     ( -0.218070   0.220805 )
Norm@50keV  : 6.291466E-04    ( -8.140312E-05   8.066703E-05) )
------------------------------------------------------------
 Chi-Squared =      81.36211     using    59 PHA bins.
 Reduced chi-squared =      1.427405     for     57 degrees of freedom
 Null hypothesis probability = 1.876E-02
 
Photon flux (15-150 keV)    in 132.0 sec: 7.798916E-02 ( -0.00974413  0.0097551 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.91329e-07 ( -1.1291e-07  1.15026e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from -116.048 sec. to   15.968 sec.
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.780296     ( -1.14843   0.816576 )
Epeak [keV] : 84.4811      ( -28.4079 9915.52 )
Norm@50keV  : 1.451197E-03    ( -1.451197E-03   4.201400E-03) )
------------------------------------------------------------
 Chi-Squared =      79.54093     using    59 PHA bins.
 but latest trial   48.1961     gives Chi-Squared =   7.06796
 Reduced chi-squared =      1.420374     for     56 degrees of freedom
 Null hypothesis probability = 2.101E-02
 
Photon flux (15-150 keV)    in 132.0 sec: 7.570498E-02 ( -0.0102024  0.0101856 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.43571e-07 ( -1.28238e-07  1.30276e-07 ) ergs/cm2
 
Band function
Time interval is from -116.048 sec. to   15.968 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.900547   ( -11.6143   3.17585 )
beta        : -2.12660    ( -4.63173   3.71109 )
Epeak [keV] : 90.2242      ( -38.7539 9961.15 )
Norm@50keV   : 1.269351E-03    ( -0.516153   9.00018 )
------------------------------------------------------------
 Chi-Squared =      79.58410     using    59 PHA bins.
 Reduced chi-squared =      1.446984     for     55 degrees of freedom
 Null hypothesis probability = 1.675E-02
 
Photon flux (15-150 keV)    in 132.0 sec: 7.623424E-02 ( -0.0104253  0.0102175 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.43259e-07 ( -1.09697e-07  1.42671e-07 ) ergs/cm2
 

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from    2.112 sec. to    3.120 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.900891     ( -0.441650   0.400705 )
Norm@50keV  : 4.132117E-03    ( -9.967822E-04   9.703436E-04) )
------------------------------------------------------------
 Chi-Squared =      55.99591     using    59 PHA bins.
 Reduced chi-squared =     0.9823843     for     57 degrees of freedom
 Null hypothesis probability = 0.513
 
Photon flux (15-150 keV)    in 1.008 sec: 0.474268 ( -0.112318  0.113139 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.67402e-08 ( -1.12383e-08  1.13066e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    2.112 sec. to    3.120 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.894130     ( -0.445425   0.403512 )
Epeak [keV] : 9992.69      (   )
Norm@50keV  : 4.159815E-03    (     )
------------------------------------------------------------
 Chi-Squared =      55.99023     using    59 PHA bins.
 Reduced chi-squared =     0.9998255     for     56 degrees of freedom
 Null hypothesis probability = 0.475
 
Photon flux (15-150 keV)    in 1.008 sec: 0.466384 ( -0.118652  0.115594 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.58134e-08 ( -1.2656e-08  1.18625e-08 ) ergs/cm2
 
Band function
Time interval is from    2.112 sec. to    3.120 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.802116   ( -9.19788   5.80212 )
beta        : -0.900920    ( -0.400721   0.441683 )
Epeak [keV] : 30.9707      ( -30.8707 9969.03 )
Norm@50keV   : 6.119346E-03    ( -2.924284E-03   1235.64 )
------------------------------------------------------------
 Chi-Squared =      55.99591     using    59 PHA bins.
 Reduced chi-squared =      1.018107     for     55 degrees of freedom
 Null hypothesis probability = 0.437
 
Photon flux (15-150 keV)    in 1.008 sec: 0.458877 ( -0.107379  0.118807 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.58267e-08 ( -1.26503e-08  1.18289e-08 ) ergs/cm2
 
Plot creation:
Tue Jan  1 16:02:26 EST 2008