batgrbproduct Analysis for Trigger=353567

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.44
    Process Start Time (local time): Sat May 30 18:49:52 EDT 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger353567/GCN5_download_cron
======================================================================

  Trigger: 00353567      Segment: 000

  BAT Trigger Time: 265346303.168   [s; MET]
      Trigger Stop: 265346303.424   [s; MET]
               UTC: 2009-05-30T03:18:18.384300    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 179.394767123952   Dec: 26.5835130140546  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.41
     Image Trigger?:     NO
     Rate S/N Ratio:     23.3452350598575  [ if not an image trigger ]
     Image S/N Ratio:    9.41

  Flight Position:   [ source = BAT ]
    RA: 179.394767123952   Dec: 26.5835130140546  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 179.401870978969   Dec: 26.5929083396707  [deg; J2000]  
        { 11h 57m 36.4s , +26d 35' 34.5" }
         +/- 1.70469294461723 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.840806132243931 [arcmin] (formal 1-sigma fit error)
    SNR: 14.1969577208166
 
  Angular difference between Flight and Ground position is 0.680485 arcmin
 
  Partial Coding Fraction: 0.4101562    [ including projection effects ]

  Duration
     T90: 48 +/- 35.7770876399966
        Measured from: -15.1679999232292
                   to: 32.8320000767708     [s; relative to TRIGTIME]
     T50: 32 +/- 16
        Measured from: -15.1679999232292
                   to: 16.8320000767708     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 8.33199998736382     
                   to: 9.33199998736382     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -15.1680000126362     
                   to: 48.8319999873638     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.514965   0.675359   0.468996   0.120170
           0.057072   0.057900   0.053441   0.049600 [error]
 Peak      0.214948   0.342240   0.240983   0.027447
           0.032465   0.033200   0.030405   0.027833 [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 1.67e-07 2.89e-07 3.82e-07 1.03e-06 1.12e-06 1.87e-06   erg/cm2
              Error 2.61e-08 2.88e-08 5.22e-08 2.92e-07 1.25e-07 3.38e-07   erg/cm2
Peak flux Power-law 1.47e-01 1.52e-01 1.10e-01 1.28e-01 4.59e-01 5.37e-01   ph/cm2/s
              Error 2.80e-02 1.84e-02 1.56e-02 3.62e-02 5.29e-02 6.24e-02   ph/cm2/s
 
Fluence   Cutoff-PL 1.46e-07 3.17e-07 3.96e-07 3.20e-07 1.04e-06 1.18e-06   erg/cm2
              Error 3.11e-08 3.71e-08 5.93e-08 3.15e-07 1.36e-07 3.41e-07   erg/cm2
Peak flux Cutoff-PL 1.24e-01 1.69e-01 1.17e-01 6.21e-02 4.66e-01 4.52e-01   ph/cm2/s
              Error 3.26e-02 2.38e-02 1.84e-02 5.30e-02 5.56e-02 6.53e-02   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    1.596    0.168    -      -           1.86e-03 1.94e-04   56.170 57
CPL   0.702    0.772      69.9   45.4      5.42e-03 7.20e-03   51.250 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.464    0.187    -      -           3.71e-03 4.31e-04   48.830 57
CPL   0.356    0.947      70.6   43.3      1.41e-02 2.49e-02   43.430 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: 3.008000 sec.
T50 in the 50-300 keV band: 1.472000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   64.000  -15.168   48.832
T90    48.000  -15.168   32.832
T50    32.000  -15.168   16.832
Peak    1.000    8.332    9.332

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  179.4019 +26.5929 0.0136   35.3  -52.4       1.1064    14.2  TRIG_00353567       
------------------------------------------
 
Foreground time interval of the image:
-15.168   7.533 (delta_t =  22.701 [sec])
Background time interval of the image:
-239.168 -15.168 (delta_t = 224.000 [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  -15.168 sec. to   48.832 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.59643     ( -0.166426   0.169825 )
Norm@50keV  : 1.86492E-03    ( -0.000194382   0.000192693 )
------------------------------------------------------------
# Chi-Squared =          56.17 using 59 PHA bins.
# Reduced chi-squared =         0.9855 for     57 degrees of freedom 
# Null hypothesis probability =   5.061711e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.239388 ( -0.0236967  0.0237209 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.11672e-06 ( -1.24643e-07  1.26175e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -15.168 sec. to   48.832 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.702294     ( -0.840443   0.702591 )
Epeak [keV] : 69.9352      ( -15.122 75.6104 )
Norm@50keV  : 5.42394E-03    ( -0.00542389   0.00898519 )
------------------------------------------------------------
# Chi-Squared =          51.25 using 59 PHA bins.
# Reduced chi-squared =         0.9152 for     56 degrees of freedom 
# Null hypothesis probability =   6.549114e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.230437 ( -0.024745  0.024708 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.04374e-06 ( -1.33574e-07  1.37542e-07 ) ergs/cm2
 
Band function
Time interval is from  -15.168 sec. to   48.832 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.697793   ( -0.745822   0.821049 )
beta        : -10.00000    ( 3.34448e+09   3.34448e+09 )
Epeak [keV] : 69.8129      ( -15.0417 75.7706 )
Norm@50keV   : 5.45208E-03    ( -0.0054413   0.00897464 )
------------------------------------------------------------
# Chi-Squared =          51.25 using 59 PHA bins.
# Reduced chi-squared =         0.9318 for     55 degrees of freedom 
# Null hypothesis probability =   6.186464e-01
 
Photon flux (15-150 keV)    in 64 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    0.832 sec. to   16.832 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.46368     ( -0.186165   0.186946 )
Norm@50keV  : 3.70973E-03    ( -0.000432465   0.000429773 )
------------------------------------------------------------
# Chi-Squared =          48.83 using 59 PHA bins.
# Reduced chi-squared =         0.8567 for     57 degrees of freedom 
# Null hypothesis probability =   7.708590e-01
 
Photon flux (15-150 keV)    in 16 sec: 0.458750 ( -0.0528894  0.0529667 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.66598e-07 ( -7.1771e-08  7.26206e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.832 sec. to   16.832 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.355818     ( -1.05591   0.837309 )
Epeak [keV] : 70.6475      ( -15.7678 70.8723 )
Norm@50keV  : 1.41356E-02    ( -0.0141356   0.0356378 )
------------------------------------------------------------
# Chi-Squared =          43.43 using 59 PHA bins.
# Reduced chi-squared =         0.7755 for     56 degrees of freedom 
# Null hypothesis probability =   8.899179e-01
 
Photon flux (15-150 keV)    in 16 sec: 0.466003 ( -0.055564  0.055607 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from    0.832 sec. to   16.832 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.95359   ( -53.1397   -43.1409 )
beta        : -1.72407    ( -0.322522   0.299513 )
Epeak [keV] : 29.9691      ( -7.13284 5.52518 )
Norm@50keV   : 125.149    ( -85.9445   378.082 )
------------------------------------------------------------
# Chi-Squared =          41.87 using 59 PHA bins.
# Reduced chi-squared =         0.7613 for     55 degrees of freedom 
# Null hypothesis probability =   9.037106e-01
 
Photon flux (15-150 keV)    in 16 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Plot creation:
Sat May 30 19:05:25 EDT 2009