batgrbproduct Analysis for Trigger=354224

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.44
    Process Start Time (local time): Sat Jun  6 18:13:23 EDT 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger354224/GCN5_download_cron
======================================================================

  Trigger: 00354224      Segment: 000

  BAT Trigger Time: 265973303.552   [s; MET]
      Trigger Stop: 265973304.576   [s; MET]
               UTC: 2009-06-06T09:28:18.748240    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 275.940781573845   Dec: -30.3713080090065  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    6.57
     Image Trigger?:     NO
     Rate S/N Ratio:     8.83176086632785  [ if not an image trigger ]
     Image S/N Ratio:    6.57

  Flight Position:   [ source = BAT ]
    RA: 275.940781573845   Dec: -30.3713080090065  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 275.876131018445   Dec: -30.3489987040293  [deg; J2000]  
        { 18h 23m 30.3s , -30d 20' 56.4" }
         +/- 5.45176036291437 [arcmin] (estimated 90% radius based on SNR)
         +/- 3.84648231892263 [arcmin] (formal 1-sigma fit error)
    SNR: 2.69726124110828
 
  Angular difference between Flight and Ground position is 3.604817 arcmin
 
  Partial Coding Fraction: 1.03125    [ including projection effects ]

  Duration
     T90: 1.02400001883507 +/- 
        Measured from: 0
                   to: 1.02400001883507     [s; relative to TRIGTIME]
     T50: 1.02400001883507 +/- 
        Measured from: 0
                   to: 1.02400001883507     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 1.02400001883507 second)
        Measured from: 1.49011611938477e-08     
                   to: 1.02400003373623     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 1.02400001883507     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.039928   0.001733  -0.001433  -0.003299
           0.006366   0.005175   0.004368   0.003928 [error]
 Peak      0.039928   0.001733  -0.001433  -0.003299
           0.006366   0.005175   0.004368   0.003928 [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 1.03e-08 2.16e-09 2.26e-10 2.60e-11 1.27e-08 1.27e-08   erg/cm2
              Error 2.91e-09 1.79e-09 4.87e-10 1.36e-10 4.56e-09 4.59e-09   erg/cm2
Peak flux Power-law 3.50e-01 4.26e-02 2.23e-03 1.23e-04 3.95e-01 3.95e-01   ph/cm2/s
              Error 9.70e-02 3.37e-02 4.65e-03 5.94e-04 1.21e-01 1.21e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.16e-08 1.11e-09 5.22e-13 1.37e-20 1.27e-08 1.27e-08   erg/cm2
              Error 3.14e-09 1.60e-09 2.44e-10 0.00e+00 3.81e-09 3.72e-09   erg/cm2
Peak flux Cutoff-PL 3.50e-01 4.26e-02 2.23e-03 1.22e-04 3.95e-01 3.95e-01   ph/cm2/s
              Error 9.70e-02 3.37e-02 4.64e-03 5.89e-04 1.20e-01 1.21e-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    5.246    1.373    -      -           2.02e-04 3.28e-04   63.730 57
CPL   1.000    0.000      50.0    0.0      4.28e-03 0.00e+00   93.040 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    5.246    1.373    -      -           2.02e-04 3.28e-04   63.730 57
CPL   1.000    0.000      50.0    0.0      4.28e-03 0.00e+00   93.040 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    1.024    0.000    1.024
T90     1.024    0.000    1.024
T50     1.024    0.000    1.024
Peak    1.024    0.000    1.024

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  275.8761 -30.3490 0.0710    7.5 -112.4       0.0263     2.7  TRIG_00354224       
------------------------------------------
 
Foreground time interval of the image:
  0.000   1.024 (delta_t =   1.024 [sec])
Background time interval of the image:
-239.552 -56.402 (delta_t = 183.150 [sec])
-55.552  -7.552 (delta_t =  48.000 [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    1.024 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 5.24617     ( -1.14892   1.59727 )
Norm@50keV  : 2.02250E-04    ( -0.000202167   0.000454295 )
------------------------------------------------------------
# Chi-Squared =          63.73 using 59 PHA bins.
# Reduced chi-squared =          1.118 for     57 degrees of freedom 
# Null hypothesis probability =   2.517426e-01
 
Photon flux (15-150 keV)    in 1.024 sec: 0.395088 ( -0.119699  0.121333 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.27028e-08 ( -4.31793e-09  4.80416e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    1.024 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00000     (     )
Epeak [keV] : 50.0000      (   )
Norm@50keV  : 4.27628E-03    (     )
------------------------------------------------------------
# Chi-Squared =          93.04 using 59 PHA bins.
# Reduced chi-squared =          1.661 for     56 degrees of freedom 
# Null hypothesis probability =   1.373673e-03
 
Photon flux (15-150 keV)    in 1.024 sec: 0.394714 ( -0.119665  0.121291 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.27062e-08 ( -3.73185e-09  3.89171e-09 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    1.024 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -9.33237   ( 6.42509   9.62482 )
beta        : -5.25751    ( -1.76284   0.983835 )
Epeak [keV] : 658.456      ( -658.456 -658.456 )
Norm@50keV   : 2.71528E-02    ( -0.0272512   0.0619694 )
------------------------------------------------------------
# Chi-Squared =          63.73 using 59 PHA bins.
# Reduced chi-squared =          1.159 for     55 degrees of freedom 
# Null hypothesis probability =   1.963193e-01
 
Photon flux (15-150 keV)    in 1.024 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    1.024 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 5.24617     ( -1.14892   1.59727 )
Norm@50keV  : 2.02250E-04    ( -0.000202167   0.000454295 )
------------------------------------------------------------
# Chi-Squared =          63.73 using 59 PHA bins.
# Reduced chi-squared =          1.118 for     57 degrees of freedom 
# Null hypothesis probability =   2.517426e-01
 
Photon flux (15-150 keV)    in 1.024 sec: 0.395088 ( -0.119699  0.121333 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.27028e-08 ( -4.31793e-09  4.80416e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    1.024 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00000     (     )
Epeak [keV] : 50.0000      (   )
Norm@50keV  : 4.27628E-03    (     )
------------------------------------------------------------
# Chi-Squared =          93.04 using 59 PHA bins.
# Reduced chi-squared =          1.661 for     56 degrees of freedom 
# Null hypothesis probability =   1.373673e-03
 
Photon flux (15-150 keV)    in 1.024 sec: 0.394714 ( -0.119665  0.121291 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.27062e-08 ( -3.73185e-09  3.89171e-09 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    1.024 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -9.33237   ( 6.42509   9.62482 )
beta        : -5.25751    ( -1.76284   0.983835 )
Epeak [keV] : 658.456      ( -658.456 -658.456 )
Norm@50keV   : 2.71528E-02    ( -0.0272512   0.0619694 )
------------------------------------------------------------
# Chi-Squared =          63.73 using 59 PHA bins.
# Reduced chi-squared =          1.159 for     55 degrees of freedom 
# Null hypothesis probability =   1.963193e-01
 
Photon flux (15-150 keV)    in 1.024 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Plot creation:
Sat Jun  6 18:30:29 EDT 2009