batgrbproduct Analysis for Trigger=349224

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.44
    Process Start Time (local time): Tue Apr 14 14:55:20 EDT 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid2/prebascript/trigger349224/GCN5_download_cron
======================================================================

  Trigger: 00349224      Segment: 000

  BAT Trigger Time: 261373514.304   [s; MET]
      Trigger Stop: 261373515.328   [s; MET]
               UTC: 2009-04-14T03:45:09.646740    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 265.416223782114   Dec: 39.5268297856288  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    5.74
     Image Trigger?:     NO
     Rate S/N Ratio:     12.6885775404495  [ if not an image trigger ]
     Image S/N Ratio:    5.74

  Flight Position:   [ source = BAT ]
    RA: 265.416223782114   Dec: 39.5268297856288  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 265.413219460522   Dec: 39.4681567619782  [deg; J2000]  
        { 17h 41m 39.2s , +39d 28' 05.4" }
         +/- 4.56706407921922 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.4342282119984 [arcmin] (formal 1-sigma fit error)
    SNR: 3.47359881851231
 
  Angular difference between Flight and Ground position is 3.523128 arcmin
 
  Partial Coding Fraction: 0.4375    [ 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: 1.02400000393391     [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    -0.003997  -0.006179   0.035594   0.028551
           0.009120   0.009352   0.009687   0.010327 [error]
 Peak     -0.003997  -0.006179   0.035594   0.028551
           0.009120   0.009352   0.009687   0.010327 [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 9.69e-10 4.24e-09 1.57e-08 2.08e-07 4.58e-08 2.41e-07   erg/cm2
              Error 1.52e-09 4.33e-09 1.20e-08 2.18e-07 3.50e-08 2.40e-07   erg/cm2
Peak flux Power-law 3.02e-02 6.90e-02 1.29e-01 5.69e-01 3.48e-01 8.09e-01   ph/cm2/s
              Error 4.71e-02 7.23e-02 7.14e-02 7.18e-01 2.79e-01 6.06e-01   ph/cm2/s
 
Fluence   Cutoff-PL 5.12e-10 5.22e-09 2.31e-08 3.14e-08 4.77e-08 5.52e-08   erg/cm2
              Error 3.98e-09 1.07e-08 5.44e-08 2.33e-08 9.37e-08 0.00e+00   erg/cm2
Peak flux Cutoff-PL 1.37e-02 7.85e-02 1.91e-01 1.36e-01 3.79e-01 4.19e-01   ph/cm2/s
              Error 2.32e-02 7.57e-02 9.03e-02 2.72e-01 1.76e-01 2.73e-01   ph/cm2/s
 
Fluence        Band 1.34e-10 3.42e-09 2.53e-08 2.51e-08 4.80e-08 5.74e-08   erg/cm2
              Error 1.12e-08 2.37e-08 1.60e-08 0.00e+00 0.00e+00 0.00e+00   erg/cm2
Peak flux      Band 1.09e-02 6.54e-02 2.14e-01 1.01e-01 3.69e-01 4.11e-01   ph/cm2/s
              Error 3.34e-02 9.37e-02 1.64e-01 1.62e-01 3.68e-01 0.00e+00   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.114    1.099    -      -           2.69e-03 2.36e-03   62.846 57
CPL   0.097    1.072    9995.8    0.0      2.72e-03 0.00e+00   62.825 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.114    1.099    -      -           2.69e-03 2.36e-03   62.846 57
CPL   0.097    1.072    9995.8    0.0      2.72e-03 0.00e+00   62.825 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
  265.4132 +39.4682 0.0557   44.6  -11.0       0.0708     3.5  TRIG_00349224       
------------------------------------------
 
Foreground time interval of the image:
  0.000   1.024 (delta_t =   1.024 [sec])
Background time interval of the image:
-30.103 -10.304 (delta_t =  19.799 [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: 0.114253     ( -1.33252   0.865256 )
Norm@50keV  : 2.691013E-03    ( -2.691013E-03   2.027480E-03) )
------------------------------------------------------------
 Chi-Squared =      62.84649     using    59 PHA bins.
 Reduced chi-squared =      1.102570     for     57 degrees of freedom
 Null hypothesis probability = 0.277
 
Photon flux (15-150 keV)    in 1.024 sec: 0.348418 ( -0.348418  0.210072 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.57842e-08 ( -4.57842e-08  2.41849e-08 ) 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: 9.723739E-02     ( -1.27041   0.873746 )
Epeak [keV] : 9995.83      (   )
Norm@50keV  : 2.715047E-03    (     )
------------------------------------------------------------
 Chi-Squared =      62.82517     using    59 PHA bins.
 Reduced chi-squared =      1.121878     for     56 degrees of freedom
 Null hypothesis probability = 0.247
 
Photon flux (15-150 keV)    in 1.024 sec: 0.379103 ( -0.175285  0.176152 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.77458e-08 ( -2.27634e-08  2.38471e-08 ) 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       : 4.38417   ( -3.62973   1.568794E-04) )
beta        : -9.35811    (     )
Epeak [keV] : 97.2802      (   )
Norm@50keV   : 0.106776    (     )
------------------------------------------------------------
 Chi-Squared =      58.47105     using    59 PHA bins.
 Reduced chi-squared =      1.063110     for     55 degrees of freedom
 Null hypothesis probability = 0.349
 
Photon flux (15-150 keV)    in 1.024 sec: 0.369452 ( -0.161848  0.162264 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.80086e-08 ( -2.11519e-08  1.0843e-08 ) 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: 0.114253     ( -1.33252   0.865256 )
Norm@50keV  : 2.691013E-03    ( -2.691013E-03   2.027480E-03) )
------------------------------------------------------------
 Chi-Squared =      62.84649     using    59 PHA bins.
 Reduced chi-squared =      1.102570     for     57 degrees of freedom
 Null hypothesis probability = 0.277
 
Photon flux (15-150 keV)    in 1.024 sec: 0.348418 ( -0.348418  0.210072 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.57842e-08 ( -4.57842e-08  2.41849e-08 ) 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: 9.723739E-02     ( -1.27041   0.873746 )
Epeak [keV] : 9995.83      (   )
Norm@50keV  : 2.715047E-03    (     )
------------------------------------------------------------
 Chi-Squared =      62.82517     using    59 PHA bins.
 Reduced chi-squared =      1.121878     for     56 degrees of freedom
 Null hypothesis probability = 0.247
 
Photon flux (15-150 keV)    in 1.024 sec: 0.379103 ( -0.175285  0.176152 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.77458e-08 ( -2.27634e-08  2.38471e-08 ) 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       : 4.38417   ( -3.11260   1.291275E-03) )
beta        : -9.35811    (     )
Epeak [keV] : 97.2802      (   )
Norm@50keV   : 0.106776    (     )
------------------------------------------------------------
 Chi-Squared =      58.47105     using    59 PHA bins.
 Reduced chi-squared =      1.063110     for     55 degrees of freedom
 Null hypothesis probability = 0.349
 
Photon flux (15-150 keV)    in 1.024 sec: 0.369452 ( -0.161848  0.162264 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.80086e-08 ( -2.11519e-08  1.0843e-08 ) ergs/cm2
 
Plot creation:
Tue Apr 14 15:28:02 EDT 2009