batgrbproduct Analysis for Trigger=163240

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.41
    Process Start Time (local time): Wed Jan  9 18:19:43 EST 2008
             Host Name: gcn5
   Current Working Dir: /local/data/raid2/prebascript/trigger163240/GCN5_download_cron
======================================================================

  Trigger: 00163240      Segment: 000

  BAT Trigger Time: 153264816   [s; MET]
      Trigger Stop: 153264880   [s; MET]
               UTC: 2005-11-09T21:33:36.169220    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 5.8392175271281   Dec: 61.5782170486982  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    33281
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    33281

  Flight Position:   [ source = BAT ]
    RA: 5.8392175271281   Dec: 61.5782170486982  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 5.81211840432938   Dec: 61.6407635064152  [deg; J2000]  
        { 00h 23m 14.9s , +61d 38' 26.7" }
         +/- 4.36820715931273 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.48718411584388 [arcmin] (formal 1-sigma fit error)
    SNR: 3.7016852229384
    RA  =   0h 23m 14.9s  (5.812118 deg.)
    Dec =  61d 38' 27" (61.640764 deg.)
 
  Angular difference between Flight and Ground position is 3.831593 arcmin
 
  Partial Coding Fraction: 0.84375    [ including projection effects ]

  Duration
     T90: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]
     T50: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 64 second)
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.081726   0.084032   0.013757   0.014060
           0.029961   0.030810   0.027931   0.024660 [error]
 Peak      0.081726   0.084032   0.013757   0.014060
           0.029961   0.030810   0.027931   0.024660 [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 2.09e-08 3.16e-08 3.59e-08 7.78e-08 1.12e-07 1.66e-07   erg/cm2
              Error 1.27e-08 1.40e-08 2.52e-08 1.30e-07 6.04e-08 1.50e-07   erg/cm2
Peak flux Power-law 2.05e-02 1.71e-02 9.71e-03 8.17e-03 5.09e-02 5.54e-02   ph/cm2/s
              Error 1.27e-02 7.55e-03 6.59e-03 1.24e-02 2.25e-02 2.52e-02   ph/cm2/s
 
Fluence   Cutoff-PL 2.00e-08 3.87e-08 2.38e-08 2.73e-09 8.49e-08 1.14e-07   erg/cm2
              Error 1.37e-08 2.16e-08 3.12e-08 1.23e-07 6.63e-08 0.00e+00   erg/cm2
Peak flux Cutoff-PL 1.93e-02 2.10e-02 6.88e-03 4.45e-04 4.76e-02 4.77e-02   ph/cm2/s
              Error 1.39e-02 1.16e-02 8.38e-03 1.19e-02 1.80e-02 2.72e-02   ph/cm2/s
 
Fluence        Band 2.08e-08 3.58e-08 3.11e-08 4.51e-08 1.04e-07 1.23e-07   erg/cm2
              Error 1.34e-08 1.76e-08 2.96e-08 1.05e-07 6.06e-08 1.39e-07   erg/cm2
Peak flux      Band 1.96e-02 1.96e-02 8.56e-03 5.01e-03 5.05e-02 5.28e-02   ph/cm2/s
              Error 1.47e-02 1.03e-02 7.87e-03 8.44e-03 2.26e-02 2.49e-02   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.816    0.867    -      -           3.67e-04 2.79e-04   44.224 57
CPL   1.008    2.537      45.8 5000.0      1.18e-03 0.00e+00   44.064 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.816    0.867    -      -           3.67e-04 2.79e-04   44.224 57
CPL   1.008    2.280      45.8 5000.0      1.18e-03 0.00e+00   44.064 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   64.000    0.000   64.000
T90    64.000    0.000   64.000
T50    64.000    0.000   64.000
Peak   64.000    0.000   64.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
    5.8121 +61.6408 0.0521   26.1    6.1       0.2380     3.7  TRIG_00163240       
------------------------------------------
 
Foreground time interval of the image:
  0.000  33.069 (delta_t =  33.069 [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   33.069 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.81598     ( -0.803052   0.931331 )
Norm@50keV  : 3.666438E-04    ( -3.666438E-04   1.909861E-04) )
------------------------------------------------------------
 Chi-Squared =      44.22424     using    59 PHA bins.
 Reduced chi-squared =     0.7758639     for     57 degrees of freedom
 Null hypothesis probability = 0.892
 
Photon flux (15-150 keV)    in 33.07 sec: 5.085545E-02 ( -0.0224547  0.0224554 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.11593e-07 ( -5.73345e-08  6.34693e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   33.069 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00797     ( -4.00797   1.06697 )
Epeak [keV] : 45.8360      ( -45.8260 9954.16 )
Norm@50keV  : 1.179685E-03    (     )
------------------------------------------------------------
 Chi-Squared =      44.06430     using    59 PHA bins.
 Reduced chi-squared =     0.7868626     for     56 degrees of freedom
 Null hypothesis probability = 0.876
 
Photon flux (15-150 keV)    in 33.07 sec: 4.757676E-02 ( -0.0111781  0.0248952 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.49109e-08 ( -4.51584e-08  8.7486e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   33.069 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.12670   ( -8.87330   6.12670 )
beta        : -2.17215    ( -7.82785   1.10943 )
Epeak [keV] : 46.8221      ( -46.7221 9953.18 )
Norm@50keV   : 9.946044E-04    ( -14.9035   12.7598 )
------------------------------------------------------------
 Chi-Squared =      43.93754     using    59 PHA bins.
 Reduced chi-squared =     0.7988643     for     55 degrees of freedom
 Null hypothesis probability = 0.858
 
Photon flux (15-150 keV)    in 33.07 sec: 5.050558E-02 ( -0.0221646  0.0229818 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.04098e-07 ( -5.85567e-08  6.27146e-08 ) ergs/cm2
 

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from    0.000 sec. to   33.069 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.81598     ( -0.803052   0.931331 )
Norm@50keV  : 3.666438E-04    ( -3.666438E-04   1.909861E-04) )
------------------------------------------------------------
 Chi-Squared =      44.22424     using    59 PHA bins.
 Reduced chi-squared =     0.7758639     for     57 degrees of freedom
 Null hypothesis probability = 0.892
 
Photon flux (15-150 keV)    in 33.07 sec: 5.085545E-02 ( -0.0224547  0.0224554 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.11593e-07 ( -5.73345e-08  6.34693e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   33.069 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00797     ( -4.00797   0.551521 )
Epeak [keV] : 45.8360      ( -45.8260 9954.16 )
Norm@50keV  : 1.179685E-03    (     )
------------------------------------------------------------
 Chi-Squared =      44.06430     using    59 PHA bins.
 Reduced chi-squared =     0.7868626     for     56 degrees of freedom
 Null hypothesis probability = 0.876
 
Photon flux (15-150 keV)    in 33.07 sec: 4.757676E-02 ( -0.0111781  0.0248952 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.49109e-08 ( -4.51584e-08  8.7486e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   33.069 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.12670   ( -8.87330   6.12670 )
beta        : -2.17215    ( -7.82785   1.10943 )
Epeak [keV] : 46.8221      ( -46.7221 9953.18 )
Norm@50keV   : 9.946044E-04    ( -14.9035   12.7598 )
------------------------------------------------------------
 Chi-Squared =      43.93754     using    59 PHA bins.
 Reduced chi-squared =     0.7988643     for     55 degrees of freedom
 Null hypothesis probability = 0.858
 
Photon flux (15-150 keV)    in 33.07 sec: 5.050558E-02 ( -0.0221646  0.0229818 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.04098e-07 ( -5.85567e-08  6.27146e-08 ) ergs/cm2
 
Plot creation:
Wed Jan  9 18:24:47 EST 2008