batgrbproduct Analysis for Trigger=358357

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.45
    Process Start Time (local time): Sun Jul 26 11:29:57 EDT 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger358357/GCN5_download_cron
======================================================================

  Trigger: 00358357      Segment: 000

  BAT Trigger Time: 270279864   [s; MET]
      Trigger Stop: 270279928   [s; MET]
               UTC: 2009-07-26T05:44:19.057140    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 302.436151094522   Dec: 32.8515558593972  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.09
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    10.09

  Flight Position:   [ source = BAT ]
    RA: 302.436151094522   Dec: 32.8515558593972  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 302.433406575329   Dec: 32.8461279176634  [deg; J2000]  
        { 20h 09m 44.0s , +32d 50' 46.1" }
         +/- 1.4319296841458 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.538976264545507 [arcmin] (formal 1-sigma fit error)
    SNR: 18.2126484815055
 
  Angular difference between Flight and Ground position is 0.353841 arcmin
 
  Partial Coding Fraction: 0.1992188    [ including projection effects ]

  Duration
     T90: 125.955999910831 +/- 40.0998657805491
        Measured from: 5.51200014352798
                   to: 131.468000054359     [s; relative to TRIGTIME]
     T50: 62.2239999175072 +/- 24.5614645399759
        Measured from: 10.7120001316071
                   to: 72.9360000491142     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 26.7760000228882     
                   to: 27.7760000228882     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -8.93999999761581     
                   to: 141.907999992371     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.914003   2.296543   1.654828   0.312575
           0.153754   0.159268   0.142245   0.126006 [error]
 Peak      0.034856   0.033941   0.027256   0.023341
           0.012930   0.013500   0.012072   0.011368 [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 7.02e-07 1.07e-06 1.23e-06 2.70e-06 3.81e-06 5.70e-06   erg/cm2
              Error 8.46e-08 8.23e-08 1.42e-07 6.40e-07 3.31e-07 7.70e-07   erg/cm2
Peak flux Power-law 3.82e-01 2.41e-01 9.78e-02 5.38e-02 7.48e-01 7.74e-01   ph/cm2/s
              Error 2.17e-01 1.17e-01 8.19e-02 9.62e-02 3.42e-01 3.57e-01   ph/cm2/s
 
Fluence   Cutoff-PL 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
              Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
Peak flux Cutoff-PL 3.59e-01 3.35e-01 3.08e-02 6.30e-05 7.25e-01 7.24e-01   ph/cm2/s
              Error 2.13e-01 1.65e-01 7.21e-02 5.50e-02 3.09e-01 3.09e-01   ph/cm2/s
 
Fluence        Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
              Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
Peak flux      Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
              Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.803    0.139    -      -           2.74e-03 2.33e-04   42.860 57
CPL   1.460    0.388      72.8  -25.0      4.18e-03 2.59e-03   41.950 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.300    0.971    -      -           4.28e-03 3.55e-03   70.430 57
CPL  -4.919    0.000      29.9    8.3      3.08e+02 2.23e+02   68.350 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  150.848   -8.940  141.908
T90   125.956    5.512  131.468
T50    62.224   10.712   72.936
Peak    1.000   26.776   27.776

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  302.4334 +32.8461 0.0106   40.8   43.0       6.1165    18.2  TRIG_00358357       
------------------------------------------
 
Foreground time interval of the image:
 -7.899 132.901 (delta_t = 140.800 [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   -8.940 sec. to  141.908 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.80338     ( -0.137478   0.140661 )
Norm@50keV  : 2.74266E-03    ( -0.00023417   0.000231321 )
------------------------------------------------------------
# Chi-Squared =          42.86 using 59 PHA bins.
# Reduced chi-squared =         0.7519 for     57 degrees of freedom 
# Null hypothesis probability =   9.176684e-01
 
Photon flux (15-150 keV)    in 150.8 sec: 0.378429 ( -0.0294308  0.0294657 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.80711e-06 ( -3.2956e-07  3.32645e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -8.940 sec. to  141.908 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.46037     ( -0.500758   0.275689 )
Epeak [keV] : 72.7610      ( -23.4946 -73.5285 )
Norm@50keV  : 4.18479E-03    ( -0.00164628   0.00353094 )
------------------------------------------------------------
# Chi-Squared =          41.95 using 59 PHA bins.
# Reduced chi-squared =         0.7491 for     56 degrees of freedom 
# Null hypothesis probability =   9.183661e-01
 
Photon flux (15-150 keV)    in 150.8 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from   -8.940 sec. to  141.908 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.50123   ( 1.50123   0.414501 )
beta        : -9.35509    ( 9.86798   19.868 )
Epeak [keV] : 76.6037      ( -26.2361 116.136 )
Norm@50keV   : 3.98292E-03    ( -0.000302406   0.00193806 )
------------------------------------------------------------
# Chi-Squared =          41.91 using 59 PHA bins.
# Reduced chi-squared =         0.7620 for     55 degrees of freedom 
# Null hypothesis probability =   9.029162e-01
 
Photon flux (15-150 keV)    in 150.8 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from   26.776 sec. to   27.776 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.29995     ( -0.834838   1.10695 )
Norm@50keV  : 4.27961E-03    ( -0.00428017   0.00282676 )
------------------------------------------------------------
# Chi-Squared =          70.43 using 59 PHA bins.
# Reduced chi-squared =          1.236 for     57 degrees of freedom 
# Null hypothesis probability =   1.088921e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.747967 ( -0.341453  0.341593 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.09024e-08 ( -2.15248e-08  2.44352e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   26.776 sec. to   27.776 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -4.91886     (     )
Epeak [keV] : 29.8727      ( -7.67636 9.00182 )
Norm@50keV  : 307.960    ( -307.95   138.487 )
------------------------------------------------------------
# Chi-Squared =          68.35 using 59 PHA bins.
# Reduced chi-squared =          1.220 for     56 degrees of freedom 
# Null hypothesis probability =   1.245921e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.724580 ( -0.308145  0.31052 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from   26.776 sec. to   27.776 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.56107   ( -6.27424   -6.27424 )
beta        : -9.64413    ( 13.9073   23.9062 )
Epeak [keV] : 29.6678      ( -29.8359 9.1678 )
Norm@50keV   : 187.910    ( -178.14   113.442 )
------------------------------------------------------------
# Chi-Squared =          68.34 using 59 PHA bins.
# Reduced chi-squared =          1.243 for     55 degrees of freedom 
# Null hypothesis probability =   1.067665e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Plot creation:
Sun Jul 26 11:57:17 EDT 2009