batgrbproduct Analysis for Trigger=355693

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.45
    Process Start Time (local time): Thu Jun 25 19:56:32 EDT 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger355693/GCN5_download_cron
======================================================================

  Trigger: 00355693      Segment: 000

  BAT Trigger Time: 267606827.884   [s; MET]
      Trigger Stop: 267606827.916   [s; MET]
               UTC: 2009-06-25T07:13:43.027760    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 173.532064271349   Dec: 50.3536318738902  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    5.68
     Image Trigger?:     NO
     Rate S/N Ratio:     6.85565460040104  [ if not an image trigger ]
     Image S/N Ratio:    5.68

  Flight Position:   [ source = BAT ]
    RA: 173.532064271349   Dec: 50.3536318738902  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 173.524094381036   Dec: 50.5074869481454  [deg; J2000]  
        { 11h 34m 05.8s , +50d 30' 27.0" }
         +/- 4.7968992580909 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.79952758433586 [arcmin] (formal 1-sigma fit error)
    SNR: 3.23830332727456
 
  Angular difference between Flight and Ground position is 9.236329 arcmin
 
  Partial Coding Fraction: 0.8515625    [ 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     0.004434  -0.001057   0.001918   0.000123
           0.001127   0.000948   0.000783   0.000818 [error]
 Peak      0.004434  -0.001057   0.001918   0.000123
           0.001127   0.000948   0.000783   0.000818 [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 0.00e+00 3.95e-10 1.66e-10 4.08e-11 1.21e-11 6.22e-10   erg/cm2
              Error 2.16e-10 1.02e-10 1.54e-09 6.85e-10 6.79e-09 0.00e+00   erg/cm2
Peak flux Power-law 4.32e-01 1.02e-01 1.24e-02 1.68e-03 5.47e-01 0.00e+00   ph/cm2/s
              Error 4.42e-01 1.28e-01 2.98e-02 1.77e-01 5.67e-01 0.00e+00   ph/cm2/s
 
Fluence   Cutoff-PL 7.08e-10 2.21e-10 1.58e-12 1.07e-17 9.33e-10 0.00e+00   erg/cm2
              Error 4.86e-10 1.92e-10 2.56e-11 1.06e-12 6.68e-10 0.00e+00   erg/cm2
Peak flux Cutoff-PL 4.31e-01 1.02e-01 1.24e-02 1.67e-03 5.47e-01 0.00e+00   ph/cm2/s
              Error 4.42e-01 1.28e-01 2.98e-02 2.21e-01 5.68e-01 0.00e+00   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    1.500    0.000    -      -           0.00e+00 2.08e-03   64.560 57
CPL  -4.490    0.000      17.8    0.0      6.81e+03 8.97e+03   57.910 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.500    0.000    -      -           0.00e+00 2.08e-03   64.560 57
CPL  -4.490    0.000      17.8    0.0      6.81e+03 8.97e+03   57.910 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
  173.5241 +50.5075 0.0593   19.9   37.7       0.0059     3.2  TRIG_00355693       
------------------------------------------
 
Foreground time interval of the image:
  0.000   0.032 (delta_t =   0.032 [sec])
Background time interval of the image:
-60.884  -3.884 (delta_t =  57.000 [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: 1.50000     ( -1.5   -1.5 )
Norm@50keV  : 0.0    ( 0   0.00415773 )
------------------------------------------------------------
# Chi-Squared =          64.56 using 59 PHA bins.
# Reduced chi-squared =          1.133 for     57 degrees of freedom 
# Null hypothesis probability =   2.293650e-01
 
Photon flux (15-150 keV)    in 0.032 sec: 0.546773 ( -0.546773  0.587639 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.21648e-10 ( -6.21648e-10  7.48163e-10 ) 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: -4.49025     ( -1   -1 )
Epeak [keV] : 17.8350      (   )
Norm@50keV  : 6808.27    ( -6940.72   10997.4 )
------------------------------------------------------------
# Chi-Squared =          57.91 using 59 PHA bins.
# Reduced chi-squared =          1.034 for     56 degrees of freedom 
# Null hypothesis probability =   4.044733e-01
 
Photon flux (15-150 keV)    in 0.032 sec: 0.546684 ( -0.546684  0.588316 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.32605e-10 ( -6.50662e-10  6.85085e-10 ) 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       : -7.03427   ( 4.27393   4.27393 )
beta        : -4.03763    ( 4.03795   4.03795 )
Epeak [keV] : 80.0000      ( -80 -80 )
Norm@50keV   : 0.116606    ( -0.116576   0.311646 )
------------------------------------------------------------
# Chi-Squared =          62.10 using 59 PHA bins.
# Reduced chi-squared =          1.129 for     55 degrees of freedom 
# Null hypothesis probability =   2.378608e-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: 1.50000     ( -1.5   -1.5 )
Norm@50keV  : 0.0    ( 0   0.00415773 )
------------------------------------------------------------
# Chi-Squared =          64.56 using 59 PHA bins.
# Reduced chi-squared =          1.133 for     57 degrees of freedom 
# Null hypothesis probability =   2.293650e-01
 
Photon flux (15-150 keV)    in 0.032 sec: 0.546773 ( -0.546773  0.587639 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.21648e-10 ( -6.21648e-10  7.48163e-10 ) 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: -4.49025     ( -1   -1 )
Epeak [keV] : 17.8350      (   )
Norm@50keV  : 6808.27    ( -6940.72   10997.4 )
------------------------------------------------------------
# Chi-Squared =          57.91 using 59 PHA bins.
# Reduced chi-squared =          1.034 for     56 degrees of freedom 
# Null hypothesis probability =   4.044733e-01
 
Photon flux (15-150 keV)    in 0.032 sec: 0.546684 ( -0.546684  0.588316 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.32605e-10 ( -6.50662e-10  6.85085e-10 ) 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       : -7.03427   ( 4.27393   4.27393 )
beta        : -4.03763    ( 4.03795   4.03795 )
Epeak [keV] : 80.0000      ( -80 -80 )
Norm@50keV   : 0.116606    ( -0.116576   0.311646 )
------------------------------------------------------------
# Chi-Squared =          62.10 using 59 PHA bins.
# Reduced chi-squared =          1.129 for     55 degrees of freedom 
# Null hypothesis probability =   2.378608e-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:
Thu Jun 25 20:17:57 EDT 2009