batgrbproduct Analysis for Trigger=106107

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.41
    Process Start Time (local time): Fri Jan  4 20:51:30 EST 2008
             Host Name: gcn5
   Current Working Dir: /local/data/raid2/prebascript/trigger106107/GCN_download_cron
======================================================================

  Trigger: 00106107      Segment: 000

  BAT Trigger Time: 130127622.592   [s; MET]
      Trigger Stop: 130127624.64   [s; MET]
               UTC: 2005-02-15T02:33:43.199080    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 174.439240209498   Dec: 40.7963490256769  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8
     Image Trigger?:     NO
     Rate S/N Ratio:     13.2664991614216  [ if not an image trigger ]
     Image S/N Ratio:    8

  Flight Position:   [ source = BAT ]
    RA: 174.439240209498   Dec: 40.7963490256769  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 174.47956240827   Dec: 40.7921364983032  [deg; J2000]  
        { 11h 37m 55.1s , +40d 47' 31.7" }
         +/- 1.81869681181744 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.825973004752916 [arcmin] (formal 1-sigma fit error)
    SNR: 12.9429188820582
    RA  =  11h 37m 55.1s  (174.479562 deg.)
    Dec =  40d 47' 32" (40.792136 deg.)
 
  Angular difference between Flight and Ground position is 1.848938 arcmin
 
  Partial Coding Fraction: 0.828125    [ including projection effects ]

  Duration
     T90: 10.4640000015497 +/- 4.42436888401704
        Measured from: -1.34399999678135
                   to: 9.12000000476837     [s; relative to TRIGTIME]
     T50: 4.75200000405312 +/- 1.68547678779036
        Measured from: 0
                   to: 4.75200000405312     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.132000014185905     
                   to: 1.13200001418591     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -1.79199999570847     
                   to: 13.472000002861     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.218749   0.171772   0.080700  -0.000881
           0.018836   0.019472   0.016773   0.014375 [error]
 Peak      0.027287   0.034079   0.015240   0.003865
           0.005102   0.005308   0.004499   0.003732 [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 6.30e-08 7.42e-08 6.30e-08 9.07e-08 2.32e-07 2.93e-07   erg/cm2
              Error 9.93e-09 9.41e-09 1.54e-08 4.26e-08 3.50e-08 6.20e-08   erg/cm2
Peak flux Power-law 2.73e-01 2.27e-01 1.28e-01 1.08e-01 6.75e-01 7.36e-01   ph/cm2/s
              Error 7.20e-02 4.19e-02 3.61e-02 5.76e-02 1.25e-01 1.39e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.19e-08 7.78e-08 5.99e-08 4.10e-08 2.22e-07 2.41e-07   erg/cm2
              Error 1.04e-08 1.25e-08 1.46e-08 5.79e-08 4.08e-08 8.27e-08   erg/cm2
Peak flux Cutoff-PL 2.38e-01 2.72e-01 1.23e-01 1.78e-02 6.48e-01 6.51e-01   ph/cm2/s
              Error 8.54e-02 6.46e-02 4.74e-02 6.01e-02 1.28e-01 1.34e-01   ph/cm2/s
 
Fluence        Band 6.23e-08 7.68e-08 5.82e-08 7.17e-08 2.25e-07 2.72e-07   erg/cm2
              Error 1.10e-08 1.12e-08 1.70e-08 3.68e-08 5.80e-08 0.00e+00   erg/cm2
Peak flux      Band 2.37e-01 2.73e-01 1.21e-01 3.69e-02 6.53e-01 6.67e-01   ph/cm2/s
              Error 8.52e-02 6.03e-02 3.75e-02 5.73e-02 1.24e-01 1.40e-01   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.236    0.248    -      -           1.61e-03 2.86e-04   66.391 57
CPL   1.619    0.000      23.5    0.0      3.84e-03 7.69e-03   65.991 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.821    0.321    -      -           4.86e-03 1.06e-03   60.474 57
CPL   0.241    2.016      45.6 4983.2      4.07e-02 4.90e-01   57.892  0
 
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   15.264   -1.792   13.472
T90    10.464   -1.344    9.120
T50     4.752    0.000    4.752
Peak    1.000    0.132    1.132

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  174.4796 +40.7921 0.0148   23.9   21.2       0.4791    12.9  TRIG_00106107       
------------------------------------------
 
Foreground time interval of the image:
 -1.792  13.472 (delta_t =  15.264 [sec])
Background time interval of the image:
-60.592  -1.792 (delta_t =  58.800 [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   -1.792 sec. to   13.472 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.23639     ( -0.238335   0.258447 )
Norm@50keV  : 1.611326E-03    ( -2.887896E-04   2.823333E-04) )
------------------------------------------------------------
 Chi-Squared =      66.39087     using    59 PHA bins.
 Reduced chi-squared =      1.164752     for     57 degrees of freedom
 Null hypothesis probability = 0.185
 
Photon flux (15-150 keV)    in 15.26 sec: 0.271970 ( -0.032351  0.032352 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.32446e-07 ( -3.44571e-08  3.56352e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -1.792 sec. to   13.472 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.61879     (     )
Epeak [keV] : 23.4771      (   )
Norm@50keV  : 3.841025E-03    ( -3.093274E-03   1.229400E-02) )
------------------------------------------------------------
 Chi-Squared =      65.99072     using    59 PHA bins.
 Reduced chi-squared =      1.178406     for     56 degrees of freedom
 Null hypothesis probability = 0.170
 
Photon flux (15-150 keV)    in 15.26 sec: 0.268574 ( -0.033179  0.033193 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.22151e-07 ( -3.99705e-08  4.16796e-08 ) ergs/cm2
 
Band function
Time interval is from   -1.792 sec. to   13.472 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.99067   ( -8.10525   6.89475 )
beta        : -4.57166    ( -7.69437   0.293198 )
Epeak [keV] : 7.18022      ( -7.08222 33.9284 )
Norm@50keV   : 1.893870E-03    ( -1.00919   476.801 )
------------------------------------------------------------
 Chi-Squared =      67.98615     using    59 PHA bins.
 Reduced chi-squared =      1.236112     for     55 degrees of freedom
 Null hypothesis probability = 0.112
 
Photon flux (15-150 keV)    in 15.26 sec: 0.268573 ( -0.033187  0.033214 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.24812e-07 ( -3.58579e-08  3.78311e-08 ) ergs/cm2
 

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from    0.128 sec. to    1.136 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.82138     ( -0.309359   0.332286 )
Norm@50keV  : 4.860217E-03    ( -1.074080E-03   1.041958E-03) )
------------------------------------------------------------
 Chi-Squared =      60.47380     using    59 PHA bins.
 Reduced chi-squared =      1.060944     for     57 degrees of freedom
 Null hypothesis probability = 0.352
 
Photon flux (15-150 keV)    in 1.008 sec: 0.675365 ( -0.124765  0.124792 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.50993e-08 ( -9.84695e-09  1.00908e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.128 sec. to    1.136 sec.
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.241169     ( -2.39113   1.64014 )
Epeak [keV] : 45.6449      ( -12.1010 9954.36 )
Norm@50keV  : 4.067925E-02    ( -3.604510E-02   0.944523 )
------------------------------------------------------------
 Chi-Squared =      57.89202     using    59 PHA bins.
 but latest trial   1.88143     gives Chi-Squared =   2.67499
 Reduced chi-squared =      1.033786     for     56 degrees of freedom
 Null hypothesis probability = 0.405
 
Photon flux (15-150 keV)    in 1.008 sec: 0.648406 ( -0.127622  0.128284 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.91991e-08 ( -9.47248e-09  1.15941e-08 ) ergs/cm2
 
Band function
Time interval is from    0.128 sec. to    1.136 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.253144   ( -2.16526   3.08107 )
beta        : -3.02341    ( -6.97659   1.29714 )
Epeak [keV] : 45.0234      ( -21.3733 205.038 )
Norm@50keV   : 4.067993E-02    ( -3.653051E-02   185.714 )
------------------------------------------------------------
 Chi-Squared =      57.61879     using    59 PHA bins.
 Reduced chi-squared =      1.047614     for     55 degrees of freedom
 Null hypothesis probability = 0.379
 
Photon flux (15-150 keV)    in 1.008 sec: 0.653428 ( -0.125261  0.122463 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.03229e-08 ( -7.43924e-09  5.43262e-09 ) ergs/cm2
 
Plot creation:
Fri Jan  4 20:58:18 EST 2008