batgrbproduct Analysis for Trigger=215203

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.41
    Process Start Time (local time): Tue Jan  1 18:20:07 EST 2008
             Host Name: gcn5
   Current Working Dir: /local/data/raid2/prebascript/trigger215203/GCN5_download_cron
======================================================================

  Trigger: 00215203      Segment: 000

  BAT Trigger Time: 172350664   [s; MET]
      Trigger Stop: 172350728   [s; MET]
               UTC: 2006-06-18T19:11:02.735960    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 255.037364513171   Dec: -42.4148700801938  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    5.08
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    5.08

  Flight Position:   [ source = BAT ]
    RA: 255.037364513171   Dec: -42.4148700801938  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 255.09160897898   Dec: -42.3188083090207  [deg; J2000]  
        { 17h 00m 22.0s , -42d 19' 07.7" }
         +/- 8.75207598635272 [arcmin] (estimated 90% radius based on SNR)
         +/- 6.96996781221475 [arcmin] (formal 1-sigma fit error)
    SNR: 1.37165663667937
    RA  =  17h  0m 22.0s  (255.091609 deg.)
    Dec = -42d 19'  8" (-42.318808 deg.)
 
  Angular difference between Flight and Ground position is 6.245228 arcmin
 
  Partial Coding Fraction: 1    [ including projection effects ]

  Duration
     T90: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]
     T50: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 64 second)
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.071632   0.088786  -0.036279  -0.004439
           0.036100   0.030842   0.026131   0.023441 [error]
 Peak      0.071632   0.088786  -0.036279  -0.004439
           0.036100   0.030842   0.026131   0.023441 [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 2.31e-08 2.06e-08 1.25e-08 1.15e-08 6.14e-08 6.54e-08   erg/cm2
              Error 1.51e-08 1.43e-08 1.56e-08 3.13e-08 4.33e-08 7.10e-08   erg/cm2
Peak flux Power-law 2.34e-02 1.16e-02 3.52e-03 1.36e-03 3.91e-02 3.98e-02   ph/cm2/s
              Error 1.53e-02 7.67e-03 4.25e-03 3.29e-03 2.35e-02 2.39e-02   ph/cm2/s
 
Fluence   Cutoff-PL 1.96e-08 3.38e-08 6.35e-09 3.24e-11 5.98e-08 6.02e-08   erg/cm2
              Error 1.53e-08 2.06e-08 1.38e-08 1.10e-08 3.44e-08 3.44e-08   erg/cm2
Peak flux Cutoff-PL 1.86e-02 1.89e-02 2.04e-03 5.67e-06 3.96e-02 3.96e-02   ph/cm2/s
              Error 1.52e-02 1.10e-02 3.98e-03 6.06e-04 2.16e-02 2.16e-02   ph/cm2/s
 
Fluence        Band 2.05e-08 3.09e-08 9.62e-09 3.38e-10 5.64e-08 6.38e-08   erg/cm2
              Error 1.49e-08 2.49e-08 1.37e-08 3.37e-10 3.54e-08 0.00e+00   erg/cm2
Peak flux      Band 1.71e-02 1.94e-02 1.63e-03 6.96e-06 3.85e-02 4.11e-02   ph/cm2/s
              Error 1.85e-02 8.72e-03 3.30e-03 1.58e-04 2.06e-02 2.36e-02   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.705    1.293    -      -           1.75e-04 1.74e-04   71.008 57
CPL  -2.482    5.354      30.2   14.7      3.71e-01 1.24e+00   68.598  0
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.705    1.293    -      -           1.75e-04 1.74e-04   71.008 57
CPL  -2.482    6.320      30.2   14.7      3.71e-01 1.24e+00   68.598  0
 
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   64.000    0.000   64.000
T90    64.000    0.000   64.000
T50    64.000    0.000   64.000
Peak   64.000    0.000   64.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  255.0916 -42.3188 0.1404   17.8  -17.0       0.0955     1.4  TRIG_00215203       
------------------------------------------
 
Foreground time interval of the image:
  0.000  33.058 (delta_t =  33.058 [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
Time interval is from    0.000 sec. to   33.058 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.70504     ( -0.964993   1.62103 )
Norm@50keV  : 1.749117E-04    ( -1.749117E-04   1.736248E-04) )
------------------------------------------------------------
 Chi-Squared =      71.00824     using    59 PHA bins.
 Reduced chi-squared =      1.245759     for     57 degrees of freedom
 Null hypothesis probability = 0.100
 
Photon flux (15-150 keV)    in 33.06 sec: 3.914710E-02 ( -0.0234243  0.0235088 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.13511e-08 ( -3.97004e-08  4.68394e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   33.058 sec.
Parameters  : value       lower 90%   higher 90%
Photon index: -2.48163     ( -0.518367   10.1897 )
Epeak [keV] : 30.1772      ( -14.1588 15.1629 )
Norm@50keV  : 0.371025    ( -0.371025   2.11607 )
------------------------------------------------------------
 Chi-Squared =      68.59789     using    59 PHA bins.
 but latest trial   16.0047     gives Chi-Squared =   1.07221
 but latest trial   2.44396     gives Chi-Squared =   279.932
 Reduced chi-squared =      1.224962     for     56 degrees of freedom
 Null hypothesis probability = 0.120
 
Photon flux (15-150 keV)    in 33.06 sec: 3.961939E-02 ( -0.0207439  0.0225217 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.98313e-08 ( -3.19276e-08  3.68007e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   33.058 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.88665   ( -8.83041   3.22844 )
beta        : -8.65804    ( -0.631564   7.34134 )
Epeak [keV] : 4.94556      ( -16.0320 41.6478 )
Norm@50keV   : 6.128726E-04    ( -2.230547E-03   37028.8 )
------------------------------------------------------------
 Chi-Squared =      70.10968     using    59 PHA bins.
 Reduced chi-squared =      1.274722     for     55 degrees of freedom
 Null hypothesis probability = 8.245E-02
 
Photon flux (15-150 keV)    in 33.06 sec: 3.850116E-02 ( -0.0200818  0.0211193 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.6405e-08 ( -2.82684e-08  4.24318e-08 ) ergs/cm2
 

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from    0.000 sec. to   33.058 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.70504     ( -0.964993   1.62103 )
Norm@50keV  : 1.749117E-04    ( -1.749117E-04   1.736248E-04) )
------------------------------------------------------------
 Chi-Squared =      71.00824     using    59 PHA bins.
 Reduced chi-squared =      1.245759     for     57 degrees of freedom
 Null hypothesis probability = 0.100
 
Photon flux (15-150 keV)    in 33.06 sec: 3.914710E-02 ( -0.0234243  0.0235088 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.13511e-08 ( -3.97004e-08  4.68394e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   33.058 sec.
Parameters  : value       lower 90%   higher 90%
Photon index: -2.48163     ( -0.518367   12.1210 )
Epeak [keV] : 30.1772      ( -14.1588 15.1629 )
Norm@50keV  : 0.371025    ( -0.371025   2.11607 )
------------------------------------------------------------
 Chi-Squared =      68.59789     using    59 PHA bins.
 but latest trial   16.0047     gives Chi-Squared =   1.07221
 but latest trial   2.44396     gives Chi-Squared =   279.932
 Reduced chi-squared =      1.224962     for     56 degrees of freedom
 Null hypothesis probability = 0.120
 
Photon flux (15-150 keV)    in 33.06 sec: 3.961939E-02 ( -0.0207439  0.0225217 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.98313e-08 ( -3.19276e-08  3.68007e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   33.058 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.88665   ( -8.83041   3.22844 )
beta        : -8.65804    ( -0.631564   7.34134 )
Epeak [keV] : 4.94556      ( -16.0320 41.6478 )
Norm@50keV   : 6.128726E-04    ( -2.230547E-03   37028.8 )
------------------------------------------------------------
 Chi-Squared =      70.10968     using    59 PHA bins.
 Reduced chi-squared =      1.274722     for     55 degrees of freedom
 Null hypothesis probability = 8.245E-02
 
Photon flux (15-150 keV)    in 33.06 sec: 3.850116E-02 ( -0.0200818  0.0211193 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.6405e-08 ( -2.82684e-08  4.24318e-08 ) ergs/cm2
 
Plot creation:
Tue Jan  1 18:25:17 EST 2008