batgrbproduct Analysis for Trigger=354634

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.45
    Process Start Time (local time): Fri Jun 12 03:48:11 EDT 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger354634/GCN5_download_cron
======================================================================

  Trigger: 00354634      Segment: 000

  BAT Trigger Time: 266442449.504   [s; MET]
      Trigger Stop: 266442449.536   [s; MET]
               UTC: 2009-06-11T19:47:24.685220    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 116.916809329382   Dec: 73.4845030013502  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    5.63
     Image Trigger?:     NO
     Rate S/N Ratio:     6.557438524302  [ if not an image trigger ]
     Image S/N Ratio:    5.63

  Flight Position:   [ source = BAT ]
    RA: 116.916809329382   Dec: 73.4845030013502  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 117.055009151407   Dec: 73.4374260098876  [deg; J2000]  
        { 07h 48m 13.2s , +73d 26' 14.7" }
         +/- 4.23529542803551 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.81808334814512 [arcmin] (formal 1-sigma fit error)
    SNR: 3.86874605641561
 
  Angular difference between Flight and Ground position is 3.681069 arcmin
 
  Partial Coding Fraction: 1    [ including projection effects ]

  Duration
     T90: 0.0320000052452087 +/- 
        Measured from: 0
                   to: 0.0320000052452087     [s; relative to TRIGTIME]
     T50: 0.0320000052452087 +/- 
        Measured from: 0
                   to: 0.0320000052452087     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 0.0320000052452087 second)
        Measured from: 0     
                   to: 0.0320000052452087     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 0.0320000052452087     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.000670   0.004356   0.003096  -0.001491
           0.000947   0.001005   0.001020   0.001099 [error]
 Peak      0.000670   0.004356   0.003096  -0.001491
           0.000947   0.001005   0.001020   0.001099 [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 5.02e-10 8.70e-10 1.15e-09 3.09e-09 3.36e-09 5.68e-09   erg/cm2
              Error 2.70e-10 3.60e-10 5.87e-10 3.34e-09 1.50e-09 3.56e-09   erg/cm2
Peak flux Power-law 5.07e-01 4.82e-01 3.18e-01 3.26e-01 1.44e+00 1.64e+00   ph/cm2/s
              Error 2.76e-01 2.01e-01 1.59e-01 2.81e-01 5.96e-01 6.86e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.42e-10 1.33e-09 1.37e-09 3.23e-09 0.00e+00 0.00e+00   erg/cm2
              Error 3.29e-10 5.31e-10 9.89e-10 1.67e-09 0.00e+00 0.00e+00   erg/cm2
Peak flux Cutoff-PL 3.30e-01 7.15e-01 4.03e-01 3.19e-02 1.48e+00 1.48e+00   ph/cm2/s
              Error 2.64e-01 2.91e-01 2.76e-01 1.09e-01 5.69e-01 5.74e-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 1.53e+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    1.588    0.543    -      -           1.13e-02 4.85e-03   49.990 57
CPL  -1.650    0.802      53.0   25.8      6.12e-01 2.57e+01   44.320 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.588    0.543    -      -           1.13e-02 4.85e-03   49.990 57
CPL  -1.650    0.802      53.0   25.8      6.12e-01 2.57e+01   44.320 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    0.032    0.000    0.032
T90     0.032    0.000    0.032
T50     0.032    0.000    0.032
Peak    0.032    0.000    0.032

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  117.0550 +73.4374 0.0498    7.8   54.5       0.0077     3.9  TRIG_00354634       
------------------------------------------
 
Foreground time interval of the image:
  0.000   0.032 (delta_t =   0.032 [sec])
Background time interval of the image:
-60.504  -1.504 (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    0.032 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.58760     ( -0.518998   0.567051 )
Norm@50keV  : 1.12544E-02    ( -0.00488911   0.00480325 )
------------------------------------------------------------
# Chi-Squared =          49.99 using 59 PHA bins.
# Reduced chi-squared =         0.8770 for     57 degrees of freedom 
# Null hypothesis probability =   7.331561e-01
 
Photon flux (15-150 keV)    in 0.032 sec: 1.44153 ( -0.595972  0.596444 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.35741e-09 ( -1.45283e-09  1.54e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    0.032 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.64964     ( 1.69472   3.29795 )
Epeak [keV] : 52.9697      ( -18.7503 32.8756 )
Norm@50keV  : 0.611759    ( -0.737424   50.5729 )
------------------------------------------------------------
# Chi-Squared =          44.32 using 59 PHA bins.
# Reduced chi-squared =         0.7915 for     56 degrees of freedom 
# Null hypothesis probability =   8.700755e-01
 
Photon flux (15-150 keV)    in 0.032 sec: 1.47884 ( -0.550279  0.58844 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    0.032 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 1.79259   ( -2.8772   -2.07498 )
beta        : -9.99992    ( 40696.5   40706.5 )
Epeak [keV] : 52.3552      ( -18.6952 32.7226 )
Norm@50keV   : 0.738871    ( -0.737936   26.3521 )
------------------------------------------------------------
# Chi-Squared =          44.32 using 59 PHA bins.
# Reduced chi-squared =         0.8058 for     55 degrees of freedom 
# Null hypothesis probability =   8.481170e-01
 
Photon flux (15-150 keV)    in 0.032 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    0.032 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.58760     ( -0.518998   0.567051 )
Norm@50keV  : 1.12544E-02    ( -0.00488911   0.00480325 )
------------------------------------------------------------
# Chi-Squared =          49.99 using 59 PHA bins.
# Reduced chi-squared =         0.8770 for     57 degrees of freedom 
# Null hypothesis probability =   7.331561e-01
 
Photon flux (15-150 keV)    in 0.032 sec: 1.44153 ( -0.595972  0.596444 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.35741e-09 ( -1.45283e-09  1.54e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    0.032 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.64964     ( 1.69472   3.29795 )
Epeak [keV] : 52.9697      ( -18.7503 32.8756 )
Norm@50keV  : 0.611759    ( -0.737424   50.5729 )
------------------------------------------------------------
# Chi-Squared =          44.32 using 59 PHA bins.
# Reduced chi-squared =         0.7915 for     56 degrees of freedom 
# Null hypothesis probability =   8.700755e-01
 
Photon flux (15-150 keV)    in 0.032 sec: 1.47884 ( -0.550279  0.58844 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    0.032 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 1.79259   ( -2.8772   -2.07498 )
beta        : -9.99992    ( 40696.5   40706.5 )
Epeak [keV] : 52.3552      ( -18.6952 32.7226 )
Norm@50keV   : 0.738871    ( -0.737936   26.3521 )
------------------------------------------------------------
# Chi-Squared =          44.32 using 59 PHA bins.
# Reduced chi-squared =         0.8058 for     55 degrees of freedom 
# Null hypothesis probability =   8.481170e-01
 
Photon flux (15-150 keV)    in 0.032 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Plot creation:
Fri Jun 12 03:55:43 EDT 2009