batgrbproduct Analysis for Trigger=343319

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.42
    Process Start Time (local time): Thu Feb 19 22:37:34 EST 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid2/prebascript/trigger343319/GCN5_download_cron
======================================================================

  Trigger: 00343319      Segment: 000

  BAT Trigger Time: 256755024   [s; MET]
      Trigger Stop: 256755088   [s; MET]
               UTC: 2009-02-19T16:50:19.487860    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 299.164379669533   Dec: 34.2115539996892  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    12.82
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    12.82

  Flight Position:   [ source = BAT ]
    RA: 299.164379669533   Dec: 34.2115539996892  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 299.166932632994   Dec: 34.2190069505784  [deg; J2000]  
        { 19h 56m 40.1s , +34d 13' 08.4" }
         +/- 1.63334449460591 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.65610658121888 [arcmin] (formal 1-sigma fit error)
    SNR: 15.0911220959352
 
  Angular difference between Flight and Ground position is 0.464771 arcmin
 
  Partial Coding Fraction: 0.4921875    [ including projection effects ]

  Duration
     T90: 645.116000026464 +/- 47.8251930600874
        Measured from: -61.1679999232292
                   to: 583.948000103235     [s; relative to TRIGTIME]
     T50: 302.636000037193 +/- 27.5902827207847
        Measured from: 59.228000074625
                   to: 361.864000111818     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -61.3759999871254     
                   to: -60.3759999871254     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -91.555999994278     
                   to: 660.59999999404     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     5.573867   6.258364   4.170796   0.625832
           0.166598   0.164976   0.145657   0.128564 [error]
 Peak      0.025171   0.036390   0.013167   0.000700
           0.007543   0.007820   0.006692   0.005832 [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 2.05e-06 2.98e-06 3.21e-06 6.48e-06 1.02e-05 1.47e-05   erg/cm2
              Error 1.24e-07 1.05e-07 1.53e-07 6.73e-07 3.59e-07 7.82e-07   erg/cm2
Peak flux Power-law 3.09e-01 2.41e-01 1.26e-01 9.51e-02 7.19e-01 7.71e-01   ph/cm2/s
              Error 1.27e-01 6.79e-02 5.61e-02 8.38e-02 2.04e-01 2.19e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.90e-06 3.05e-06 3.27e-06 4.00e-06 9.96e-06 1.23e-05   erg/cm2
              Error 1.61e-07 1.20e-07 1.64e-07 1.41e-06 4.14e-07 1.49e-06   erg/cm2
Peak flux Cutoff-PL 3.06e-01 2.46e-01 1.25e-01 7.52e-02 7.16e-01 7.47e-01   ph/cm2/s
              Error 1.01e-01 9.25e-02 7.40e-02 1.00e-01 2.03e-01 2.42e-01   ph/cm2/s
 
Fluence        Band 1.89e-06 3.04e-06 3.26e-06 4.46e-06 9.94e-06 1.27e-05   erg/cm2
              Error 1.57e-07 1.19e-07 1.67e-07 1.53e-06 4.08e-07 2.13e-06   erg/cm2
Peak flux      Band 2.94e-01 2.69e-01 1.15e-01 6.64e-02 7.13e-01 7.43e-01   ph/cm2/s
              Error 1.45e-01 9.61e-02 4.61e-02 6.79e-02 2.05e-01 2.21e-01   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.889    0.065    -      -           1.50e-03 5.27e-05   52.738 57
CPL   1.495    0.278      65.0   28.9      2.34e-03 7.06e-04   47.449 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.936    0.536    -      -           4.93e-03 1.70e-03   61.053 57
CPL   1.721    2.441      51.4 5000.0      6.60e-03 2.29e+00   61.058 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: 453.312000 sec.
T50 in the 50-300 keV band: 228.096000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  752.156  -91.556  660.600
T90   645.116  -61.168  583.948
T50   302.636   59.228  361.864
Peak    1.000  -61.376  -60.376

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  299.1669 +34.2190 0.0128   41.7  -22.5       2.1920    15.1  TRIG_00343319       
------------------------------------------
 
Foreground time interval of the image:
 -5.799  71.201 (delta_t =  77.000 [sec])
Background time interval of the image:

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
Multiple GTIs in the spectrum
tstart tstop
-91.556000 -83.450000
-73.000000 660.600000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.88915     ( -6.509697E-02   6.577241E-02) )
Norm@50keV  : 1.501774E-03    ( -5.287176E-05   5.257875E-05) )
------------------------------------------------------------
 Chi-Squared =      52.73828     using    59 PHA bins.
 Reduced chi-squared =     0.9252330     for     57 degrees of freedom
 Null hypothesis probability = 0.636
 
Photon flux (15-150 keV)    in 741.7 sec: 0.214535 ( -0.007938  0.007973 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.02402e-05 ( -3.58538e-07  3.59131e-07 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-91.556000 -83.450000
-73.000000 660.600000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.49523     ( -0.251188   0.304049 )
Epeak [keV] : 64.9907      ( -9.92471 47.8090 )
Norm@50keV  : 2.336654E-03    ( -6.632137E-04   7.490753E-04) )
------------------------------------------------------------
 Chi-Squared =      47.44895     using    59 PHA bins.
 Reduced chi-squared =     0.8473027     for     56 degrees of freedom
 Null hypothesis probability = 0.785
 
Photon flux (15-150 keV)    in 741.7 sec: 0.208384 ( -0.009017  0.009063 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.96125e-06 ( -4.1639e-07  4.12534e-07 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
-91.556000 -83.450000
-73.000000 660.600000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.53077   ( -0.266562   0.283939 )
beta        : -9.29104    ( -0.708962   7.32885 )
Epeak [keV] : 66.3053      ( -11.1000 45.3075 )
Norm@50keV   : 2.249018E-03    ( -5.717134E-04   8.276524E-04) )
------------------------------------------------------------
 Chi-Squared =      47.40115     using    59 PHA bins.
 Reduced chi-squared =     0.8618392     for     55 degrees of freedom
 Null hypothesis probability = 0.757
 
Photon flux (15-150 keV)    in 741.7 sec: 0.208350 ( -0.008136  0.008395 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.94471e-06 ( -4.00444e-07  4.16168e-07 ) ergs/cm2
 

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from  -61.376 sec. to  -60.376 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.93596     ( -0.505724   0.566369 )
Norm@50keV  : 4.934970E-03    ( -1.749092E-03   1.651112E-03) )
------------------------------------------------------------
 Chi-Squared =      61.05342     using    59 PHA bins.
 Reduced chi-squared =      1.071113     for     57 degrees of freedom
 Null hypothesis probability = 0.332
 
Photon flux (15-150 keV)    in 1.000 sec: 0.719282 ( -0.204059  0.204217 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.54025e-08 ( -1.48397e-08  1.55031e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -61.376 sec. to  -60.376 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.72120     ( -4.44188   0.439273 )
Epeak [keV] : 51.4486      ( -51.4386 9948.55 )
Norm@50keV  : 6.602714E-03    ( -6.602714E-03   4.57778 )
------------------------------------------------------------
 Chi-Squared =      61.05812     using    59 PHA bins.
 Reduced chi-squared =      1.090324     for     56 degrees of freedom
 Null hypothesis probability = 0.299
 
Photon flux (15-150 keV)    in 1.000 sec: 0.716252 ( -0.202724  0.203393 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.49122e-08 ( -1.13455e-08  1.59452e-08 ) ergs/cm2
 
Band function
Time interval is from  -61.376 sec. to  -60.376 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.436770   ( -9.56323   5.43677 )
beta        : -2.19469    ( -7.80531   0.701545 )
Epeak [keV] : 31.7972      ( -31.6972 291.665 )
Norm@50keV   : 5.197335E-02    ( -188.960   214.539 )
------------------------------------------------------------
 Chi-Squared =      60.43226     using    59 PHA bins.
 Reduced chi-squared =      1.098768     for     55 degrees of freedom
 Null hypothesis probability = 0.286
 
Photon flux (15-150 keV)    in 1.000 sec: 0.713385 ( -0.205505  0.204145 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.27529e-08 ( -1.35798e-08  1.48601e-08 ) ergs/cm2
 
Plot creation:
Thu Feb 19 23:16:49 EST 2009