batgrbproduct Analysis for Trigger=359182

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.45
    Process Start Time (local time): Thu Aug  6 03:39:47 EDT 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger359182/GCN5_download_cron
======================================================================

  Trigger: 00359182      Segment: 000

  BAT Trigger Time: 271173793.856   [s; MET]
      Trigger Stop: 271173794.304   [s; MET]
               UTC: 2009-08-05T14:03:08.884180    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) Expanded to TRIGTIME - 64 ms to TRIGTIME + 320 ms

  BAT 
    RA: 30.3596399753733   Dec: -39.8471965023476  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    5.69
     Image Trigger?:     NO
     Rate S/N Ratio:     6.32455532033676  [ if not an image trigger ]
     Image S/N Ratio:    5.69

  Flight Position:   [ source = BAT ]
    RA: 30.3596399753733   Dec: -39.8471965023476  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 30.2729122167573   Dec: -39.701198907609  [deg; J2000]  
        { 02h 01m 05.5s , -39d 42' 04.3" }
         +/- 7.10339153824188 [arcmin] (estimated 90% radius based on SNR)
         +/- 6.31058949340697 [arcmin] (formal 1-sigma fit error)
    SNR: 1.84815644864474
 
  Angular difference between Flight and Ground position is 9.629650 arcmin
 
  Partial Coding Fraction: 1    [ including projection effects ]

  Duration
     T90: 0.448000013828278 +/- 
        Measured from: 0
                   to: 0.448000013828278     [s; relative to TRIGTIME]
     T50: 0.448000013828278 +/- 
        Measured from: 0
                   to: 0.448000013828278     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 0.448000013828278 second)
        Measured from: 2.98023223876953e-08     
                   to: 0.4480000436306     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 0.448000013828278     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.003673   0.007542   0.006209  -0.007091
           0.003488   0.003741   0.003526   0.003717 [error]
 Peak      0.003673   0.007542   0.006209  -0.007091
           0.003488   0.003741   0.003526   0.003717 [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 8.50e-10 2.11e-09 4.19e-09 2.05e-08 1.13e-08 2.79e-08   erg/cm2
              Error 9.66e-10 1.54e-09 3.05e-09 3.76e-08 8.11e-09 4.10e-08   erg/cm2
Peak flux Power-law 6.06e-02 8.13e-02 8.09e-02 1.45e-01 2.70e-01 3.69e-01   ph/cm2/s
              Error 6.97e-02 6.08e-02 5.80e-02 2.34e-01 1.80e-01 2.78e-01   ph/cm2/s
 
Fluence   Cutoff-PL 5.15e-10 2.62e-09 5.04e-09 2.33e-09 1.00e-08 1.05e-08   erg/cm2
              Error 8.54e-10 2.13e-09 4.58e-09 2.68e-08 7.69e-09 2.95e-08   erg/cm2
Peak flux Cutoff-PL 3.54e-02 9.82e-02 1.01e-01 2.56e-02 2.56e-01 2.59e-01   ph/cm2/s
              Error 6.09e-02 8.27e-02 8.95e-02 1.73e-01 1.68e-01 2.34e-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 3.03e-01 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    0.999    1.131    -      -           2.34e-03 1.95e-03   58.960 57
CPL  -1.086    0.000      78.7    0.0      2.33e-02 1.21e+00   57.730 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.999    1.131    -      -           2.34e-03 1.95e-03   58.960 57
CPL  -1.086    0.000      78.7    0.0      2.33e-02 1.21e+00   57.730 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    0.448    0.000    0.448
T90     0.448    0.000    0.448
T50     0.448    0.000    0.448
Peak    0.448    0.000    0.448

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   30.2729 -39.7012 0.1042   11.2 -132.4       0.0130     1.8  TRIG_00359182       
------------------------------------------
 
Foreground time interval of the image:
  0.000   0.448 (delta_t =   0.448 [sec])
Background time interval of the image:
-60.856  -1.856 (delta_t =  59.000 [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    0.448 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.999410     ( -1.20592   1.05611 )
Norm@50keV  : 2.33999E-03    ( -0.00234077   0.00155535 )
------------------------------------------------------------
# Chi-Squared =          58.96 using 59 PHA bins.
# Reduced chi-squared =          1.034 for     57 degrees of freedom 
# Null hypothesis probability =   4.038468e-01
 
Photon flux (15-150 keV)    in 0.448 sec: 0.269723 ( -0.179566  0.181192 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.13004e-08 ( -7.84439e-09  8.36725e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    0.448 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.08561     ( 1.12896   1.12896 )
Epeak [keV] : 78.6672      ( -74.8465 -74.8465 )
Norm@50keV  : 2.33448E-02    ( -0.0353174   2.3765 )
------------------------------------------------------------
# Chi-Squared =          57.73 using 59 PHA bins.
# Reduced chi-squared =          1.031 for     56 degrees of freedom 
# Null hypothesis probability =   4.110309e-01
 
Photon flux (15-150 keV)    in 0.448 sec: 0.256116 ( -0.159519  0.177463 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.00123e-08 ( -6.7894e-09  8.59967e-09 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    0.448 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 1.10020   ( -1.72573   0.188606 )
beta        : -10.00000    ( 2.23191e+11   2.23191e+11 )
Epeak [keV] : 78.3539      ( -37.7314 -73.6861 )
Norm@50keV   : 2.37863E-02    ( -0.036989   1.39656 )
------------------------------------------------------------
# Chi-Squared =          57.73 using 59 PHA bins.
# Reduced chi-squared =          1.050 for     55 degrees of freedom 
# Null hypothesis probability =   3.746764e-01
 
Photon flux (15-150 keV)    in 0.448 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    0.000 sec. to    0.448 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.999410     ( -1.20592   1.05611 )
Norm@50keV  : 2.33999E-03    ( -0.00234077   0.00155535 )
------------------------------------------------------------
# Chi-Squared =          58.96 using 59 PHA bins.
# Reduced chi-squared =          1.034 for     57 degrees of freedom 
# Null hypothesis probability =   4.038468e-01
 
Photon flux (15-150 keV)    in 0.448 sec: 0.269723 ( -0.179566  0.181192 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.13004e-08 ( -7.84439e-09  8.36725e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    0.448 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.08561     ( 1.12896   1.12896 )
Epeak [keV] : 78.6672      ( -74.8465 -74.8465 )
Norm@50keV  : 2.33448E-02    ( -0.0353174   2.3765 )
------------------------------------------------------------
# Chi-Squared =          57.73 using 59 PHA bins.
# Reduced chi-squared =          1.031 for     56 degrees of freedom 
# Null hypothesis probability =   4.110309e-01
 
Photon flux (15-150 keV)    in 0.448 sec: 0.256116 ( -0.159519  0.177463 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.00123e-08 ( -6.7894e-09  8.60254e-09 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    0.448 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 1.10020   ( -1.72606   0.188606 )
beta        : -10.00000    ( 2.23191e+11   2.23191e+11 )
Epeak [keV] : 78.3539      ( -37.7314 -73.6861 )
Norm@50keV   : 2.37863E-02    ( -0.036989   1.39656 )
------------------------------------------------------------
# Chi-Squared =          57.73 using 59 PHA bins.
# Reduced chi-squared =          1.050 for     55 degrees of freedom 
# Null hypothesis probability =   3.746764e-01
 
Photon flux (15-150 keV)    in 0.448 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Plot creation:
Thu Aug  6 03:53:56 EDT 2009