batgrbproduct Analysis for Trigger=141076

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.41
    Process Start Time (local time): Mon Jan  7 10:41:13 EST 2008
             Host Name: gcn5
   Current Working Dir: /local/data/raid2/prebascript/trigger141076/SDC
======================================================================

  Trigger: 00141076      Segment: 000

  BAT Trigger Time: 140458577.792   [s; MET]
      Trigger Stop: 140458594.176   [s; MET]
               UTC: 2005-06-14T16:16:18.219780    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 135.239366844296   Dec: -40.4611923748861  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    12.46
     Image Trigger?:     NO
     Rate S/N Ratio:     8.06225774829855  [ if not an image trigger ]
     Image S/N Ratio:    12.46

  Flight Position:   [ source = BAT ]
    RA: 135.239366844296   Dec: -40.4611923748861  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 135.191896429573   Dec: -40.529887142889  [deg; J2000]  
        { 09h 00m 46.1s , -40d 31' 47.6" }
         +/- 2.08004559832893 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.26027730356806 [arcmin] (formal 1-sigma fit error)
    SNR: 10.6838697874382
    RA  =   9h  0m 46.1s  (135.191896 deg.)
    Dec = -40d 31' 48" (-40.529887 deg.)
 
  Angular difference between Flight and Ground position is 4.656140 arcmin
 
  Partial Coding Fraction: 0.2695312    [ including projection effects ]

  Duration
     T90: 16.3840000033379 +/- 
        Measured from: 0
                   to: 16.3840000033379     [s; relative to TRIGTIME]
     T50: 16.3840000033379 +/- 
        Measured from: 0
                   to: 16.3840000033379     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 16.3840000033379 second)
        Measured from: 0     
                   to: 16.3840000033379     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 16.3840000033379     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.246658   0.256552   0.025818   0.001228
           0.036701   0.039815   0.037993   0.041335 [error]
 Peak      0.246658   0.256552   0.025818   0.001228
           0.036701   0.039815   0.037993   0.041335 [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 1.02e-07 1.06e-07 7.81e-08 9.24e-08 3.23e-07 3.79e-07   erg/cm2
              Error 2.33e-08 2.26e-08 3.16e-08 7.04e-08 7.60e-08 1.17e-07   erg/cm2
Peak flux Power-law 2.06e-01 1.19e-01 4.37e-02 2.12e-02 3.80e-01 3.90e-01   ph/cm2/s
              Error 4.77e-02 2.45e-02 1.71e-02 1.51e-02 7.14e-02 7.40e-02   ph/cm2/s
 
Fluence   Cutoff-PL 9.43e-08 1.34e-07 4.18e-08 1.40e-09 2.72e-07 2.73e-07   erg/cm2
              Error 2.73e-08 3.32e-08 4.39e-08 1.85e-08 6.49e-08 6.69e-08   erg/cm2
Peak flux Cutoff-PL 1.85e-01 1.51e-01 2.58e-02 4.75e-04 3.62e-01 3.62e-01   ph/cm2/s
              Error 5.63e-02 3.64e-02 2.08e-02 5.13e-03 7.06e-02 7.07e-02   ph/cm2/s
 
Fluence        Band 9.23e-08 1.36e-07 3.52e-08 3.32e-09 2.67e-07 2.87e-07   erg/cm2
              Error 2.75e-08 3.23e-08 3.29e-08 3.39e-08 6.72e-08 8.80e-08   erg/cm2
Peak flux      Band 1.86e-01 1.51e-01 2.59e-02 1.78e-03 3.63e-01 3.65e-01   ph/cm2/s
              Error 6.71e-02 3.43e-02 8.79e-03 1.00e-02 6.86e-02 6.92e-02   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.445    0.389    -      -           2.00e-03 6.00e-04   54.573 57
CPL  -0.086    2.488      27.7   17.7      8.94e-02 1.47e+00   50.182  0
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.445    0.389    -      -           2.00e-03 6.00e-04   54.573 57
CPL  -0.086    2.488      27.7   17.7      8.94e-02 1.47e+00   50.182  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   16.384    0.000   16.384
T90    16.384    0.000   16.384
T50    16.384    0.000   16.384
Peak   16.384    0.000   16.384

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  135.1919 -40.5299 0.0179   50.3  -12.9       0.9354    10.7  TRIG_00141076       
------------------------------------------
 
Foreground time interval of the image:
  0.000  16.384 (delta_t =  16.384 [sec])
Background time interval of the image:
-299.792 -33.792 (delta_t = 266.000 [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    0.000 sec. to   16.384 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.44546     ( -0.361393   0.416867 )
Norm@50keV  : 1.996197E-03    ( -6.000885E-04   6.008376E-04) )
------------------------------------------------------------
 Chi-Squared =      54.57271     using    59 PHA bins.
 Reduced chi-squared =     0.9574159     for     57 degrees of freedom
 Null hypothesis probability = 0.567
 
Photon flux (15-150 keV)    in 16.38 sec: 0.379569 ( -0.071403  0.071422 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.22565e-07 ( -7.38509e-08  7.81998e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   16.384 sec.
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -8.558212E-02     ( -2.91442   2.06088 )
Epeak [keV] : 27.7431      ( -27.7331 7.69929 )
Norm@50keV  : 8.939181E-02    ( -8.939181E-02   2.84237 )
------------------------------------------------------------
 Chi-Squared =      50.18230     using    59 PHA bins.
 but latest trial   4.39691     gives Chi-Squared =   5.51122
 Reduced chi-squared =     0.8961126     for     56 degrees of freedom
 Null hypothesis probability = 0.694
 
Photon flux (15-150 keV)    in 16.38 sec: 0.361879 ( -0.070293  0.070946 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.71897e-07 ( -5.80622e-08  7.16985e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   16.384 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.833157   ( -0.952728   5.73736 )
beta        : -4.33779    ( -5.66221   13.2941 )
Epeak [keV] : 25.3683      ( -10.9421 57.2418 )
Norm@50keV   : 2.169105E-02    ( -0.288733   19.3685 )
------------------------------------------------------------
 Chi-Squared =      50.78141     using    59 PHA bins.
 Reduced chi-squared =     0.9232984     for     55 degrees of freedom
 Null hypothesis probability = 0.636
 
Photon flux (15-150 keV)    in 16.38 sec: 0.362828 ( -0.069054  0.068128 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.6668e-07 ( -5.29533e-08  8.13644e-08 ) ergs/cm2
 

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from    0.000 sec. to   16.384 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.44546     ( -0.361393   0.416867 )
Norm@50keV  : 1.996197E-03    ( -6.000885E-04   6.008376E-04) )
------------------------------------------------------------
 Chi-Squared =      54.57271     using    59 PHA bins.
 Reduced chi-squared =     0.9574159     for     57 degrees of freedom
 Null hypothesis probability = 0.567
 
Photon flux (15-150 keV)    in 16.38 sec: 0.379569 ( -0.071403  0.071422 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.22565e-07 ( -7.38509e-08  7.81998e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   16.384 sec.
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -8.558212E-02     ( -2.91442   2.06088 )
Epeak [keV] : 27.7431      ( -27.7331 7.69929 )
Norm@50keV  : 8.939181E-02    ( -8.939181E-02   2.84237 )
------------------------------------------------------------
 Chi-Squared =      50.18230     using    59 PHA bins.
 but latest trial   4.39691     gives Chi-Squared =   5.51122
 Reduced chi-squared =     0.8961126     for     56 degrees of freedom
 Null hypothesis probability = 0.694
 
Photon flux (15-150 keV)    in 16.38 sec: 0.361879 ( -0.070293  0.070946 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.71897e-07 ( -5.80622e-08  7.16985e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   16.384 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.833157   ( -6.61158   5.73736 )
beta        : -4.33779    ( -5.66221   13.2941 )
Epeak [keV] : 25.3683      ( -25.2683 57.2418 )
Norm@50keV   : 2.169105E-02    ( -0.288733   19.3685 )
------------------------------------------------------------
 Chi-Squared =      50.78141     using    59 PHA bins.
 Reduced chi-squared =     0.9232984     for     55 degrees of freedom
 Null hypothesis probability = 0.636
 
Photon flux (15-150 keV)    in 16.38 sec: 0.362828 ( -0.069054  0.068128 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.6668e-07 ( -5.29533e-08  8.13644e-08 ) ergs/cm2
 
Plot creation:
Mon Jan  7 10:58:29 EST 2008