batgrbproduct Analysis for Trigger=147029

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.41
    Process Start Time (local time): Mon Jan  7 17:22:16 EST 2008
             Host Name: gcn5
   Current Working Dir: /local/data/raid2/prebascript/trigger147029/GCN5_download_cron
======================================================================

  Trigger: 00147029      Segment: 000

  BAT Trigger Time: 143637270.4   [s; MET]
      Trigger Stop: 143637274.496   [s; MET]
               UTC: 2005-07-21T11:14:30.767080    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 262.943847888148   Dec: -33.7749882945236  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    33615
     Image Trigger?:     NO
     Rate S/N Ratio:     8.83176086632785  [ if not an image trigger ]
     Image S/N Ratio:    33615

  Flight Position:   [ source = BAT ]
    RA: 262.943847888148   Dec: -33.7749882945236  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 262.963479520933   Dec: -33.8219295503706  [deg; J2000]  
        { 17h 31m 51.2s , -33d 49' 18.9" }
         +/- 2.97354753315384 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.98042359075297 [arcmin] (formal 1-sigma fit error)
    SNR: 6.4122640981444
    RA  =  17h 31m 51.2s  (262.963480 deg.)
    Dec = -33d 49' 19" (-33.821930 deg.)
 
  Angular difference between Flight and Ground position is 2.981719 arcmin
 
  Partial Coding Fraction: 0.9765625    [ including projection effects ]

  Duration
     T90: 3.20000001788139 +/- 0.976917587802653
        Measured from: 0.783999979496002
                   to: 3.9839999973774     [s; relative to TRIGTIME]
     T50: 1.66400000452995 +/- 1.12729058066035
        Measured from: 1.61599999666214
                   to: 3.28000000119209     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 2.74799999594688     
                   to: 3.74799999594688     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.0160000026226044     
                   to: 4.17599999904633     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.101938   0.016441  -0.007300   0.000046
           0.011338   0.009535   0.007787   0.006386 [error]
 Peak      0.036387   0.008887  -0.004830   0.003154
           0.005403   0.004576   0.003667   0.003137 [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 2.84e-08 8.13e-09 1.26e-09 2.22e-10 3.80e-08 3.80e-08   erg/cm2
              Error 5.87e-09 4.13e-09 1.61e-09 5.19e-10 9.60e-09 9.70e-09   erg/cm2
Peak flux Power-law 3.59e-01 7.15e-02 7.04e-03 7.57e-04 4.38e-01 4.38e-01   ph/cm2/s
              Error 9.14e-02 3.89e-02 9.44e-03 1.90e-03 1.17e-01 1.17e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.08e-08 5.75e-09 3.55e-11 6.80e-16 3.66e-08 3.66e-08   erg/cm2
              Error 6.75e-09 4.44e-09 1.17e-09 1.23e-10 8.67e-09 8.49e-09   erg/cm2
Peak flux Cutoff-PL 3.58e-01 7.15e-02 7.03e-03 7.51e-04 4.37e-01 4.38e-01   ph/cm2/s
              Error 9.13e-02 3.89e-02 9.43e-03 1.88e-03 1.17e-01 1.17e-01   ph/cm2/s
 
Fluence        Band 2.81e-08 8.04e-09 1.24e-09 2.19e-10 3.93e-08 3.70e-08   erg/cm2
              Error 5.79e-09 2.96e-09 1.22e-09 9.55e-09 8.19e-09 0.00e+00   erg/cm2
Peak flux      Band 3.58e-01 7.25e-02 7.28e-03 7.98e-04 4.39e-01 4.39e-01   ph/cm2/s
              Error 9.10e-02 1.62e-02 1.47e-02 4.33e-03 1.13e-01 1.14e-01   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    4.531    0.877    -      -           2.82e-04 2.58e-04   44.754 57
CPL   1.712    0.000       2.1    7.8      6.78e-02 1.43e+02   43.159  0
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    4.178    1.003    -      -           6.14e-04 5.87e-04   71.373 57
CPL   1.087    2.276       6.7    8.5      1.81e-01 1.22e+02   69.739  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    4.160    0.016    4.176
T90     3.200    0.784    3.984
T50     1.664    1.616    3.280
Peak    1.000    2.748    3.748

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  262.9635 -33.8219 0.0299    9.7  125.9       0.1175     6.4  TRIG_00147029       
------------------------------------------
 
Foreground time interval of the image:
  0.016   4.176 (delta_t =   4.160 [sec])
Background time interval of the image:
-60.400   0.016 (delta_t =  60.416 [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    0.016 sec. to    4.176 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 4.53085     ( -0.619436   1.13371 )
Norm@50keV  : 2.824022E-04    ( -2.824022E-04   2.335714E-04) )
------------------------------------------------------------
 Chi-Squared =      44.75351     using    59 PHA bins.
 Reduced chi-squared =     0.7851492     for     57 degrees of freedom
 Null hypothesis probability = 0.881
 
Photon flux (15-150 keV)    in 4.160 sec: 0.277518 ( -0.059814  0.060054 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.79739e-08 ( -9.282e-09  9.91062e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.016 sec. to    4.176 sec.
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.71245     (     )
Epeak [keV] : 2.05268      ( -8.73523 6.82125 )
Norm@50keV  : 6.777741E-02    ( -1.60157   285.230 )
------------------------------------------------------------
 Chi-Squared =      43.15881     using    59 PHA bins.
 but latest trial   15.4027     gives Chi-Squared =   5.90400
 Reduced chi-squared =     0.7706929     for     56 degrees of freedom
 Null hypothesis probability = 0.896
 
Photon flux (15-150 keV)    in 4.160 sec: 0.282072 ( -0.058375  0.058343 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.65638e-08 ( -8.18268e-09  9.16336e-09 ) ergs/cm2
 
Band function
Time interval is from    0.016 sec. to    4.176 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.46924   ( -0.294533   0.443869 )
beta        : -9.15491    ( -0.845095   4.96791 )
Epeak [keV] : 5.04134      ( -7.50938 8.90839 )
Norm@50keV   : 4.636559E-02    ( -0.617847   246.201 )
------------------------------------------------------------
 Chi-Squared =      46.52349     using    59 PHA bins.
 Reduced chi-squared =     0.8458816     for     55 degrees of freedom
 Null hypothesis probability = 0.785
 
Photon flux (15-150 keV)    in 4.160 sec: 0.277892 ( -0.057329  0.059472 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.92961e-08 ( -9.74255e-09  9.35717e-09 ) ergs/cm2
 

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from    2.768 sec. to    3.728 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 4.17837     ( -0.682201   1.32300 )
Norm@50keV  : 6.144602E-04    ( -6.144602E-04   5.591372E-04) )
------------------------------------------------------------
 Chi-Squared =      71.37349     using    59 PHA bins.
 Reduced chi-squared =      1.252167     for     57 degrees of freedom
 Null hypothesis probability = 9.535E-02
 
Photon flux (15-150 keV)    in 0.9600 sec: 0.437709 ( -0.116237  0.11712 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.43496e-08 ( -4.37952e-09  4.8048e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    2.768 sec. to    3.728 sec.
Epeak [keV] : 6.68449      ( -6.67449 10.2843 )
Norm@50keV  : 0.181303    ( -0.181303   243.442 )
------------------------------------------------------------
 Chi-Squared =      69.73936     using    59 PHA bins.
 but latest trial  -3.91838     gives Chi-Squared =   18.1540
 but latest trial   1.80189     gives Chi-Squared =  9.725189E-02
 but latest trial   15.8673     gives Chi-Squared =  0.766525
 but latest trial   243.623     gives Chi-Squared =   42.1112
 Reduced chi-squared =      1.245346     for     56 degrees of freedom
 Null hypothesis probability = 0.103
 
Photon flux (15-150 keV)    in 0.9600 sec: 0.437426 ( -0.116201  0.117077 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.41751e-08 ( -3.91507e-09  4.12944e-09 ) ergs/cm2
 
Band function
Time interval is from    2.768 sec. to    3.728 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.43056   ( -0.197222   0.663490 )
beta        : -6.97051    ( -3.921986E-02   6.14892 )
Epeak [keV] : 5.38931      ( -5.37781 10.3214 )
Norm@50keV   : 7.036784E-02    ( -0.368601   191703. )
------------------------------------------------------------
 Chi-Squared =      70.09168     using    59 PHA bins.
 Reduced chi-squared =      1.274394     for     55 degrees of freedom
 Null hypothesis probability = 8.267E-02
 
Photon flux (15-150 keV)    in 0.9600 sec: 0.438892 ( -0.112504  0.11388 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.42388e-08 ( 0  0 ) ergs/cm2
 
Plot creation:
Mon Jan  7 17:29:30 EST 2008