batgrbproduct Analysis for Trigger=349441

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.44
    Process Start Time (local time): Fri Apr 17 14:36:16 EDT 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid2/prebascript/trigger349441/GCN5_download_cron
======================================================================

  Trigger: 00349441      Segment: 000

  BAT Trigger Time: 261658243.136   [s; MET]
      Trigger Stop: 261658259.52   [s; MET]
               UTC: 2009-04-17T10:50:38.469720    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 240.258829828141   Dec: -46.8833363262028  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    5.77
     Image Trigger?:     NO
     Rate S/N Ratio:     11.4891252930761  [ if not an image trigger ]
     Image S/N Ratio:    5.77

  Flight Position:   [ source = BAT ]
    RA: 240.258829828141   Dec: -46.8833363262028  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 240.330874873103   Dec: -46.9301606950861  [deg; J2000]  
        { 16h 01m 19.4s , -46d 55' 48.6" }
         +/- 4.02092531444135 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.56077560197135 [arcmin] (formal 1-sigma fit error)
    SNR: 4.16673147799213
 
  Angular difference between Flight and Ground position is 4.076097 arcmin
 
  Partial Coding Fraction: 1    [ including projection effects ]

  Duration
     T90: 16.3840000033379 +/- 
        Measured from: 0
                   to: 16.3840000033379     [s; relative to TRIGTIME]
     T50: 16.3840000033379 +/- 
        Measured from: 0
                   to: 16.3840000033379     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 16.3840000033379 second)
        Measured from: 0     
                   to: 16.3840000033379     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 16.3840000033379     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.127537   0.006170  -0.016786  -0.021144
           0.027995   0.021498   0.018171   0.015561 [error]
 Peak      0.127537   0.006170  -0.016786  -0.021144
           0.027995   0.021498   0.018171   0.015561 [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 2.41e-08 1.21e-08 3.73e-09 1.46e-09 4.07e-08 4.05e-08   erg/cm2
              Error 1.20e-08 9.07e-09 6.09e-09 5.74e-09 2.37e-08 2.56e-08   erg/cm2
Peak flux Power-law 4.97e-02 1.42e-02 2.19e-03 3.85e-04 6.63e-02 6.63e-02   ph/cm2/s
              Error 2.48e-02 1.02e-02 3.45e-03 1.35e-03 3.33e-02 3.34e-02   ph/cm2/s
 
Fluence   Cutoff-PL 2.41e-08 1.21e-08 3.73e-09 1.46e-09 4.07e-08 4.12e-08   erg/cm2
              Error 1.20e-08 9.07e-09 6.09e-09 5.68e-09 2.37e-08 2.55e-08   erg/cm2
Peak flux Cutoff-PL 4.97e-02 1.42e-02 2.18e-03 3.82e-04 6.63e-02 6.63e-02   ph/cm2/s
              Error 2.50e-02 1.02e-02 3.44e-03 1.34e-03 3.33e-02 3.34e-02   ph/cm2/s
 
Fluence        Band 3.13e-08 9.62e-09 1.05e-10 6.50e-13 4.17e-08 4.64e-08   erg/cm2
              Error 1.31e-08 7.88e-09 8.07e-11 4.57e-10 1.85e-08 2.28e-08   erg/cm2
Peak flux      Band 5.17e-02 1.84e-02 1.21e-03 1.09e-05 7.12e-02 7.14e-02   ph/cm2/s
              Error 2.68e-02 1.10e-02 2.81e-03 8.94e-04 3.26e-02 3.29e-02   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    3.614    1.309    -      -           1.50e-04 1.74e-04   78.105 57
CPL  -2.394    0.000      17.1   11.7      8.74e+00 8.12e+01   74.335 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    3.614    1.309    -      -           1.50e-04 1.74e-04   78.105 57
CPL  -2.394    0.000      17.1   11.7      8.74e+00 8.12e+01   74.335 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   16.384    0.000   16.384
T90    16.384    0.000   16.384
T50    16.384    0.000   16.384
Peak   16.384    0.000   16.384

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  240.3309 -46.9302 0.0464   17.7  -14.0       0.2134     4.2  TRIG_00349441       
------------------------------------------
 
Foreground time interval of the image:
  0.000  16.384 (delta_t =  16.384 [sec])
Background time interval of the image:
-60.136 -35.136 (delta_t =  25.000 [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   16.384 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.61437     ( -0.995197   1.62332 )
Norm@50keV  : 1.501550E-04    ( -1.501550E-04   1.971197E-04) )
------------------------------------------------------------
 Chi-Squared =      78.10455     using    59 PHA bins.
 Reduced chi-squared =      1.370255     for     57 degrees of freedom
 Null hypothesis probability = 3.322E-02
 
Photon flux (15-150 keV)    in 16.38 sec: 6.632984E-02 ( -0.0331098  0.0335082 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.07082e-08 ( -2.18467e-08  2.55924e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   16.384 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -2.39415     (     )
Epeak [keV] : 17.0831      ( -17.5849 5.77275 )
Norm@50keV  : 8.73670    ( -25.1190   137.366 )
------------------------------------------------------------
 Chi-Squared =      74.33506     using    59 PHA bins.
 Reduced chi-squared =      1.327412     for     56 degrees of freedom
 Null hypothesis probability = 5.109E-02
 
Photon flux (15-150 keV)    in 16.38 sec: 6.630218E-02 ( -0.0331109  0.03351 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.07405e-08 ( -2.18812e-08  2.55585e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   16.384 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.50438   ( -8.49562   0.892246 )
beta        : -9.34119    ( -0.658811   19.3412 )
Epeak [keV] : 3.91302      ( -6.15468 5.44625 )
Norm@50keV   : 1.484001E-02    ( -399.252   708.104 )
------------------------------------------------------------
 Chi-Squared =      76.88978     using    59 PHA bins.
 Reduced chi-squared =      1.397996     for     55 degrees of freedom
 Null hypothesis probability = 2.727E-02
 
Photon flux (15-150 keV)    in 16.38 sec: 7.117975E-02 ( -0.0325691  0.0325803 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.17095e-08 ( -1.77897e-08  1.92223e-08 ) ergs/cm2
 

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from    0.000 sec. to   16.384 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.61437     ( -0.995197   1.62332 )
Norm@50keV  : 1.501550E-04    ( -1.501550E-04   1.971197E-04) )
------------------------------------------------------------
 Chi-Squared =      78.10455     using    59 PHA bins.
 Reduced chi-squared =      1.370255     for     57 degrees of freedom
 Null hypothesis probability = 3.322E-02
 
Photon flux (15-150 keV)    in 16.38 sec: 6.632984E-02 ( -0.0331098  0.0335082 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.07082e-08 ( -2.18467e-08  2.55924e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   16.384 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -2.39415     (     )
Epeak [keV] : 17.0831      ( -17.5849 5.77275 )
Norm@50keV  : 8.73670    ( -25.1190   137.366 )
------------------------------------------------------------
 Chi-Squared =      74.33506     using    59 PHA bins.
 Reduced chi-squared =      1.327412     for     56 degrees of freedom
 Null hypothesis probability = 5.109E-02
 
Photon flux (15-150 keV)    in 16.38 sec: 6.630218E-02 ( -0.0331109  0.03351 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.07405e-08 ( -2.18812e-08  2.55585e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   16.384 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.50438   ( -8.49562   0.892246 )
beta        : -9.34119    ( -0.658811   19.3412 )
Epeak [keV] : 3.91302      ( -6.15468 5.44625 )
Norm@50keV   : 1.484001E-02    ( -399.252   708.104 )
------------------------------------------------------------
 Chi-Squared =      76.88978     using    59 PHA bins.
 Reduced chi-squared =      1.397996     for     55 degrees of freedom
 Null hypothesis probability = 2.727E-02
 
Photon flux (15-150 keV)    in 16.38 sec: 7.117975E-02 ( -0.0325691  0.0325803 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.17095e-08 ( -1.77897e-08  1.92223e-08 ) ergs/cm2
 
Plot creation:
Fri Apr 17 14:48:56 EDT 2009