batgrbproduct Analysis for Trigger=359711

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.45
    Process Start Time (local time): Wed Aug 12 18:23:14 EDT 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger359711/GCN5_download_cron
======================================================================

  Trigger: 00359711      Segment: 000

  BAT Trigger Time: 271749733.888   [s; MET]
      Trigger Stop: 271749734.912   [s; MET]
               UTC: 2009-08-12T06:02:08.897520    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 353.194081792447   Dec: -10.5945573605417  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.25
     Image Trigger?:     NO
     Rate S/N Ratio:     23.388031127053  [ if not an image trigger ]
     Image S/N Ratio:    10.25

  Flight Position:   [ source = BAT ]
    RA: 353.194081792447   Dec: -10.5945573605417  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 353.199543594399   Dec: -10.6094791002756  [deg; J2000]  
        { 23h 32m 47.9s , -10d 36' 34.1" }
         +/- 0.753518514961302 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.218289165516442 [arcmin] (formal 1-sigma fit error)
    SNR: 45.5720413610556
 
  Angular difference between Flight and Ground position is 0.951487 arcmin
 
  Partial Coding Fraction: 0.78125    [ including projection effects ]

  Duration
     T90: 66.6799999475479 +/- 14.6583733159175
        Measured from: -1.74799990653992
                   to: 64.932000041008     [s; relative to TRIGTIME]
     T50: 24.3079999685287 +/- 1.33022708248363
        Measured from: 7.68800008296967
                   to: 31.9960000514984     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 26.8240000009537     
                   to: 27.8240000009537     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -5.43999999761581     
                   to: 113.916000008583     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.838322   2.945841   2.628506   0.903040
           0.062623   0.064596   0.059082   0.051426 [error]
 Peak      0.081131   0.136055   0.174081   0.075575
           0.007084   0.008253   0.008537   0.007088 [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 5.75e-07 1.24e-06 2.11e-06 8.23e-06 5.79e-06 1.22e-05   erg/cm2
              Error 3.27e-08 4.03e-08 6.20e-08 5.88e-07 1.57e-07 6.11e-07   erg/cm2
Peak flux Power-law 7.11e-01 1.03e+00 1.12e+00 2.27e+00 3.57e+00 5.14e+00   ph/cm2/s
              Error 8.83e-02 7.65e-02 6.77e-02 3.11e-01 2.05e-01 3.39e-01   ph/cm2/s
 
Fluence   Cutoff-PL 5.75e-07 1.24e-06 2.11e-06 8.17e-06 5.79e-06 1.21e-05   erg/cm2
              Error 3.27e-08 4.04e-08 6.21e-08 5.84e-07 1.57e-07 6.07e-07   erg/cm2
Peak flux Cutoff-PL 7.10e-01 1.04e+00 1.12e+00 2.26e+00 3.57e+00 5.12e+00   ph/cm2/s
              Error 8.82e-02 7.66e-02 6.78e-02 3.09e-01 2.05e-01 3.37e-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    1.236    0.050    -      -           4.83e-03 1.25e-04   51.360 57
CPL   1.232    0.000    10000.0    0.0      4.85e-03 1.25e-04   51.450 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.884    0.104    -      -           3.11e-02 1.78e-03   43.350 57
CPL   0.882    0.104    9999.4    0.0      3.13e-02 6.34e-03   43.370 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: 55.616000 sec.
T50 in the 50-300 keV band: 20.672000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  119.356   -5.440  113.916
T90    66.680   -1.748   64.932
T50    24.308    7.688   31.996
Peak    1.000   26.824   27.824

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  353.1995 -10.6095 0.0042   26.5  -36.7       2.6450    45.6  TRIG_00359711       
------------------------------------------
 
Foreground time interval of the image:
 -5.440  11.313 (delta_t =  16.753 [sec])
Background time interval of the image:
-239.888  -5.440 (delta_t = 234.448 [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   -5.440 sec. to  113.916 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.23616     ( -0.0501977   0.0499616 )
Norm@50keV  : 4.82856E-03    ( -0.000124955   0.000124819 )
------------------------------------------------------------
# Chi-Squared =          51.36 using 59 PHA bins.
# Reduced chi-squared =         0.9011 for     57 degrees of freedom 
# Null hypothesis probability =   6.856434e-01
 
Photon flux (15-150 keV)    in 119.4 sec: 0.569827 ( -0.0160636  0.0161289 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.79115e-06 ( -1.56921e-07  1.57238e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -5.440 sec. to  113.916 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.23178     (     )
Epeak [keV] : 10000.00      (   )
Norm@50keV  : 4.85034E-03    ( -0.000125286   0.000125168 )
------------------------------------------------------------
# Chi-Squared =          51.45 using 59 PHA bins.
# Reduced chi-squared =         0.9188 for     56 degrees of freedom 
# Null hypothesis probability =   6.475302e-01
 
Photon flux (15-150 keV)    in 119.4 sec: 0.569539 ( -0.016055  0.01612 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.79214e-06 ( -1.5688e-07  1.5731e-07 ) ergs/cm2
 
Band function
Time interval is from   -5.440 sec. to  113.916 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.137866   ( -2.814   -2.814 )
beta        : -1.25065    ( -0.0525479   0.0542035 )
Epeak [keV] : 44.9180      ( -44.8662 185.677 )
Norm@50keV   : 2.95021E-02    ( -0.02954   218.009 )
------------------------------------------------------------
# Chi-Squared =          50.45 using 59 PHA bins.
# Reduced chi-squared =         0.9172 for     55 degrees of freedom 
# Null hypothesis probability =   6.490622e-01
 
Photon flux (15-150 keV)    in 119.4 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   26.824 sec. to   27.824 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.884071     ( -0.104391   0.102685 )
Norm@50keV  : 3.10743E-02    ( -0.00178452   0.00177832 )
------------------------------------------------------------
# Chi-Squared =          43.35 using 59 PHA bins.
# Reduced chi-squared =         0.7605 for     57 degrees of freedom 
# Null hypothesis probability =   9.089454e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.56635 ( -0.204439  0.204709 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.50917e-07 ( -2.17825e-08  2.18798e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   26.824 sec. to   27.824 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.881803     ( -0.108258   0.100647 )
Epeak [keV] : 9999.36      ( -10000 -10000 )
Norm@50keV  : 3.12705E-02    ( -0.00175625   0.0109319 )
------------------------------------------------------------
# Chi-Squared =          43.37 using 59 PHA bins.
# Reduced chi-squared =         0.7745 for     56 degrees of freedom 
# Null hypothesis probability =   8.911175e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.56530 ( -0.20438  0.20464 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.51028e-07 ( -2.1794e-08  2.1895e-08 ) ergs/cm2
 
Band function
Time interval is from   26.824 sec. to   27.824 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.821202   ( 0.821202   0.821202 )
beta        : -0.884088    ( -0.102591   0.104613 )
Epeak [keV] : 16.4794      ( -16.4794 -16.4794 )
Norm@50keV   : 4.41569E-02    ( -0.0148331   0 )
------------------------------------------------------------
# Chi-Squared =          43.35 using 59 PHA bins.
# Reduced chi-squared =         0.7881 for     55 degrees of freedom 
# Null hypothesis probability =   8.720752e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Plot creation:
Wed Aug 12 18:42:29 EDT 2009