batgrbproduct Analysis for Trigger=355359

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.45
    Process Start Time (local time): Mon Jun 22 09:38:05 EDT 2009
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger355359/GCN5_download_cron
======================================================================

  Trigger: 00355359      Segment: 000

  BAT Trigger Time: 267314850.496   [s; MET]
      Trigger Stop: 267314850.56   [s; MET]
               UTC: 2009-06-21T22:07:25.649220    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 313.432293721725   Dec: 69.0133669114323  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.88
     Image Trigger?:     NO
     Rate S/N Ratio:     43.3820239269677  [ if not an image trigger ]
     Image S/N Ratio:    8.88

  Flight Position:   [ source = BAT ]
    RA: 313.432293721725   Dec: 69.0133669114323  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 313.455229041811   Dec: 69.0341406522038  [deg; J2000]  
        { 20h 53m 49.3s , +69d 02' 02.9" }
         +/- 1.73964561709147 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.572398665924131 [arcmin] (formal 1-sigma fit error)
    SNR: 13.7912289924407
 
  Angular difference between Flight and Ground position is 1.340243 arcmin
 
  Partial Coding Fraction: 0.6953125    [ including projection effects ]

  Duration
     T90: 0.140000015497208 +/- 0.0368781879146241
        Measured from: -0.0119999051094055
                   to: 0.128000110387802     [s; relative to TRIGTIME]
     T50: 0.0439999997615814 +/- 0.017888553416166
        Measured from: 0.0360001027584076
                   to: 0.080000102519989     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.437999993562698     
                   to: 0.562000006437302     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.0279999971389771     
                   to: 0.148000001907349     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.016707   0.026445   0.033646   0.020123
           0.003157   0.003726   0.003965   0.003327 [error]
 Peak      0.016139   0.026923   0.033723   0.020149
           0.003179   0.003747   0.003977   0.003327 [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 4.13e-09 1.15e-08 2.61e-08 1.58e-07 7.05e-08 2.00e-07   erg/cm2
              Error 1.12e-09 1.85e-09 3.62e-09 5.25e-08 9.91e-09 5.42e-08   erg/cm2
Peak flux Power-law 7.20e-01 1.10e+00 1.25e+00 2.74e+00 3.89e+00 5.81e+00   ph/cm2/s
              Error 2.00e-01 1.83e-01 1.69e-01 8.29e-01 4.99e-01 8.92e-01   ph/cm2/s
 
Fluence   Cutoff-PL 4.12e-09 1.15e-08 2.62e-08 1.57e-07 7.05e-08 2.00e-07   erg/cm2
              Error 1.12e-09 1.85e-09 3.63e-09 5.21e-08 9.92e-09 5.37e-08   erg/cm2
Peak flux Cutoff-PL 7.19e-01 1.10e+00 1.26e+00 2.72e+00 3.89e+00 5.80e+00   ph/cm2/s
              Error 1.99e-01 1.84e-01 1.69e-01 8.23e-01 4.99e-01 8.87e-01   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    0.820    0.229    -      -           3.46e-02 4.47e-03   45.070 57
CPL   0.819    0.231    9999.4    0.0      3.48e-02 2.59e-02   45.070 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.807    0.229    -      -           3.38e-02 4.40e-03   43.470 57
CPL   0.803    0.231    9999.4    0.0      3.41e-02 2.70e-02   43.470 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: 0.128000 sec.
T50 in the 50-300 keV band: 0.064000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    0.176   -0.028    0.148
T90     0.140   -0.012    0.128
T50     0.044    0.036    0.080
Peak    1.000   -0.438    0.562

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  313.4552 +69.0341 0.0140   23.9  133.9       0.1008    13.8  TRIG_00355359       
------------------------------------------
 
Foreground time interval of the image:
 -0.028   0.148 (delta_t =   0.176 [sec])
Background time interval of the image:
-239.496  -0.028 (delta_t = 239.468 [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   -0.028 sec. to    0.148 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.820127     ( -0.23405   0.224721 )
Norm@50keV  : 3.45585E-02    ( -0.0044925   0.00445368 )
------------------------------------------------------------
# Chi-Squared =          45.07 using 59 PHA bins.
# Reduced chi-squared =         0.7906 for     57 degrees of freedom 
# Null hypothesis probability =   8.735276e-01
 
Photon flux (15-150 keV)    in 0.176 sec: 3.96940 ( -0.507768  0.508516 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.04825e-08 ( -9.87756e-09  9.94104e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.028 sec. to    0.148 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.819494     ( -0.240105   0.222534 )
Epeak [keV] : 9999.36      ( -10000 -10000 )
Norm@50keV  : 3.48163E-02    ( -0.00443886   0.0474399 )
------------------------------------------------------------
# Chi-Squared =          45.07 using 59 PHA bins.
# Reduced chi-squared =         0.8049 for     56 degrees of freedom 
# Null hypothesis probability =   8.518658e-01
 
Photon flux (15-150 keV)    in 0.176 sec: 3.96848 ( -0.50762  0.50838 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.05077e-08 ( -9.88451e-09  9.94787e-09 ) ergs/cm2
 
Band function
Time interval is from   -0.028 sec. to    0.148 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.900201   ( 0.900201   0.900201 )
beta        : -0.820127    ( -0.224855   0.233977 )
Epeak [keV] : 15.2914      ( -15.2914 -15.2914 )
Norm@50keV   : 4.92021E-02    ( 26951.6   -0.0492022 )
------------------------------------------------------------
# Chi-Squared =          45.07 using 59 PHA bins.
# Reduced chi-squared =         0.8194 for     55 degrees of freedom 
# Null hypothesis probability =   8.280336e-01
 
Photon flux (15-150 keV)    in 0.176 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 24.5296  (-4.24947  5.85511)
R^2/D10^2   : 0.105863  (-0.0493527   0.0822059)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          55.64 using 59 PHA bins.
# Reduced chi-squared =         0.9761 for     57 degrees of freedom 
# Null hypothesis probability =   5.264048e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.967e-09   5.775e-10
25- 50  1.105e-08   2.314e-09
50-150  4.943e-08   1.253e-08
15-150  6.244e-08   1.371e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.998       (      )
Norm        : 15.0954       (-15.0954     -15.0954)
------------------------------------------------------------
# Chi-Squared =          72.00 using 59 PHA bins.
# Reduced chi-squared =          1.263 for     57 degrees of freedom 
# Null hypothesis probability =   8.703452e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.614e-09   3.597e-09
25- 50  1.272e-08   6.974e-09
50-150  2.791e-08   1.527e-08
15-150  4.724e-08   2.585e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 13.0815        (-10.308      6.095)
R1^2/D10^2  : 0.453512        (-0.287899      123.574)
kT2 [keV]   : 77.0588        (-74.8423      -77.623)
R2^2/D10^2  : 4.01045E-03    (-0.00369633   0.0678105)
------------------------------------------------------------
# Chi-Squared =          45.88 using 59 PHA bins.
# Reduced chi-squared =         0.8342 for     55 degrees of freedom 
# Null hypothesis probability =   8.046635e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.217e-09   1.789e-09
25- 50  1.255e-08   6.648e-09
50-150  5.377e-08   2.904e-08
15-150  6.954e-08   3.597e-08

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from   -0.028 sec. to    0.152 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.807465     ( -0.234022   0.224184 )
Norm@50keV  : 3.38478E-02    ( -0.00442407   0.00438151 )
------------------------------------------------------------
# Chi-Squared =          43.47 using 59 PHA bins.
# Reduced chi-squared =         0.7626 for     57 degrees of freedom 
# Null hypothesis probability =   9.066972e-01
 
Photon flux (15-150 keV)    in 0.18 sec: 3.88922 ( -0.498565  0.499357 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.09758e-08 ( -9.91363e-09  9.97238e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.028 sec. to    0.152 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.803466     ( -0.238013   0.223941 )
Epeak [keV] : 9999.36      ( -9999.26 -9999.26 )
Norm@50keV  : 3.40985E-02    ( -0.00437642   0.0495373 )
------------------------------------------------------------
# Chi-Squared =          43.47 using 59 PHA bins.
# Reduced chi-squared =         0.7762 for     56 degrees of freedom 
# Null hypothesis probability =   8.890973e-01
 
Photon flux (15-150 keV)    in 0.18 sec: 3.88835 ( -0.49843  0.49923 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.1001e-08 ( -9.91926e-09  9.98046e-09 ) ergs/cm2
 
Band function
Time interval is from   -0.028 sec. to    0.152 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.937559   ( 0.937556   0.937556 )
beta        : -0.807465    ( -0.224084   0.234013 )
Epeak [keV] : 13.6066      ( -13.6066 -13.6066 )
Norm@50keV   : 4.96708E-02    ( -0.0236381   1.11023e+06 )
------------------------------------------------------------
# Chi-Squared =          43.47 using 59 PHA bins.
# Reduced chi-squared =         0.7903 for     55 degrees of freedom 
# Null hypothesis probability =   8.692264e-01
 
Photon flux (15-150 keV)    in 0.18 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 24.7051  (-4.28921  5.92287)
R^2/D10^2   : 0.101890  (-0.047579   0.0792689)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          53.62 using 59 PHA bins.
# Reduced chi-squared =         0.9407 for     57 degrees of freedom 
# Null hypothesis probability =   6.027527e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.957e-09   5.269e-10
25- 50  1.103e-08   2.686e-09
50-150  5.002e-08   1.067e-08
15-150  6.301e-08   1.219e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.998       (      )
Norm        : 14.7653       (-14.7653     -14.7653)
------------------------------------------------------------
# Chi-Squared =          71.40 using 59 PHA bins.
# Reduced chi-squared =          1.253 for     57 degrees of freedom 
# Null hypothesis probability =   9.502027e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.615e-09   3.636e-09
25- 50  1.272e-08   7.048e-09
50-150  2.791e-08   1.556e-08
15-150  4.725e-08   2.614e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 13.3171        (-8.43718      5.98924)
R1^2/D10^2  : 0.424665        (-0.265637      6.464)
kT2 [keV]   : 80.6927        (-51.1355      -81.3012)
R2^2/D10^2  : 3.56909E-03    (-0.00302702   0.0490318)
------------------------------------------------------------
# Chi-Squared =          43.92 using 59 PHA bins.
# Reduced chi-squared =         0.7985 for     55 degrees of freedom 
# Null hypothesis probability =   8.582191e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.181e-09   1.781e-09
25- 50  1.257e-08   6.947e-09
50-150  5.405e-08   2.815e-08
15-150  6.981e-08   3.753e-08
Plot creation:
Mon Jun 22 10:39:45 EDT 2009