batgrbproduct Analysis for Trigger=243690

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.41
    Process Start Time (local time): Wed Jan  2 15:24:51 EST 2008
             Host Name: gcn5
   Current Working Dir: /local/data/raid2/prebascript/trigger243690/GCN5_download_cron
======================================================================

  Trigger: 00243690      Segment: 000

  BAT Trigger Time: 187446040.928   [s; MET]
      Trigger Stop: 187446041.312   [s; MET]
               UTC: 2006-12-10T12:20:39.303180    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) Expanded to TRIGTIME - 32 ms to TRIGTIME + 320 ms

  BAT 
    RA: 144.513866649245   Dec: 15.6321041191689  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    12.35
     Image Trigger?:     NO
     Rate S/N Ratio:     211.501773042214  [ if not an image trigger ]
     Image S/N Ratio:    12.35

  Flight Position:   [ source = BAT ]
    RA: 144.513866649245   Dec: 15.6321041191689  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 144.521412081095   Dec: 15.6177352498841  [deg; J2000]  
        { 09h 38m 05.1s , +15d 37' 03.8" }
         +/- 2.36941042927498 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.45153933201656 [arcmin] (formal 1-sigma fit error)
    SNR: 8.86988435402013
    RA  =   9h 38m  5.1s  (144.521412 deg.)
    Dec =  15d 37'  4" (15.617735 deg.)
 
  Angular difference between Flight and Ground position is 0.966108 arcmin
 
  Partial Coding Fraction: 0.3046875    [ including projection effects ]

  Duration
     T90: 85.2480000257492 +/- 11.3820175559932
        Measured from: 0.255999982357025
                   to: 85.5040000081062     [s; relative to TRIGTIME]
     T50: 49.608000010252 +/- 20.0730035574524
        Measured from: 6.65599998831749
                   to: 56.2639999985695     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.0180000066757202     
                   to: 1.01800000667572     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.243999987840652     
                   to: 89.6399999856949     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.486370   0.601952   0.490628   0.081691
           0.083250   0.083454   0.072045   0.061969 [error]
 Peak      0.051408   0.112692   0.152272   0.063749
           0.008211   0.010212   0.010923   0.009303 [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 1.59e-07 2.82e-07 3.83e-07 1.07e-06 1.11e-06 1.90e-06   erg/cm2
              Error 4.25e-08 4.36e-08 7.43e-08 4.72e-07 1.76e-07 5.20e-07   erg/cm2
Peak flux Power-law 9.67e-01 1.49e+00 1.72e+00 3.82e+00 5.31e+00 8.00e+00   ph/cm2/s
              Error 1.89e-01 1.78e-01 1.49e-01 7.30e-01 4.69e-01 7.77e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.59e-07 2.83e-07 3.83e-07 1.06e-06 1.11e-06 1.90e-06   erg/cm2
              Error 4.26e-08 4.36e-08 7.44e-08 4.69e-07 1.76e-07 5.17e-07   erg/cm2
Peak flux Cutoff-PL 9.65e-01 1.49e+00 1.72e+00 3.80e+00 5.30e+00 7.98e+00   ph/cm2/s
              Error 1.89e-01 1.78e-01 1.49e-01 7.26e-01 4.69e-01 7.74e-01   ph/cm2/s
 
Fluence        Band 1.58e-07 2.81e-07 3.82e-07 1.07e-06 1.11e-06 1.89e-06   erg/cm2
              Error 2.18e-08 4.07e-08 5.70e-08 4.00e-07 1.67e-07 3.22e-07   erg/cm2
Peak flux      Band 8.83e-01 1.50e+00 1.80e+00 2.93e+00 5.27e+00 7.12e+00   ph/cm2/s
              Error 2.47e-01 1.88e-01 2.12e-01 1.36e+00 4.74e-01 1.41e+00   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.559    0.279    -      -           1.32e-03 1.92e-04   70.343 57
CPL   1.558    0.280    9998.5 5000.0      1.32e-03 1.94e-04   70.354 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.790    0.152    -      -           4.61e-02 4.18e-03   38.314 57
CPL   0.506    0.567     328.9 5000.0      6.05e-02 3.71e-02   37.647 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: 0.064000 sec.
T50 in the 50-300 keV band: 0.064000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   89.396    0.244   89.640
T90    85.248    0.256   85.504
T50    49.608    6.656   56.264
Peak    1.000    0.018    1.018

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  144.5214 +15.6177 0.0216   37.6  140.4       1.6743     8.9  TRIG_00243690       
------------------------------------------
 
Foreground time interval of the image:
  0.212  89.608 (delta_t =  89.396 [sec])
Background time interval of the image:
-135.659   0.212 (delta_t = 135.871 [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    0.212 sec. to   89.608 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.55940     ( -0.276921   0.280118 )
Norm@50keV  : 1.320203E-03    ( -1.934982E-04   1.911317E-04) )
------------------------------------------------------------
 Chi-Squared =      70.34292     using    59 PHA bins.
 Reduced chi-squared =      1.234086     for     57 degrees of freedom
 Null hypothesis probability = 0.110
 
Photon flux (15-150 keV)    in 89.40 sec: 0.167592 ( -0.025167  0.025255 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.10956e-06 ( -1.74875e-07  1.76225e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.212 sec. to   89.608 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.55763     ( -0.278845   0.281528 )
Epeak [keV] : 9998.53      ( -9998.53 1.46484 )
Norm@50keV  : 1.323568E-03    ( -1.945739E-04   1.924719E-04) )
------------------------------------------------------------
 Chi-Squared =      70.35446     using    59 PHA bins.
 Reduced chi-squared =      1.256330     for     56 degrees of freedom
 Null hypothesis probability = 9.392E-02
 
Photon flux (15-150 keV)    in 89.40 sec: 0.167521 ( -0.025159  0.025246 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.10978e-06 ( -1.75027e-07  1.76225e-07 ) ergs/cm2
 
Band function
Time interval is from    0.212 sec. to   89.608 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.29164   ( -8.70836   6.29164 )
beta        : -1.55928    ( -0.280611   0.276729 )
Epeak [keV] : 16.5186      ( -16.4186 9983.48 )
Norm@50keV   : 3.013102E-03    ( -3.013102E-03   0.268181 )
------------------------------------------------------------
 Chi-Squared =      70.34298     using    59 PHA bins.
 Reduced chi-squared =      1.278963     for     55 degrees of freedom
 Null hypothesis probability = 7.961E-02
 
Photon flux (15-150 keV)    in 89.40 sec: 0.166675 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.10877e-06 ( -1.57523e-07  1.75796e-07 ) ergs/cm2
 

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from    0.212 sec. to    0.760 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.790423     ( -0.155362   0.149635 )
Norm@50keV  : 4.614661E-02    ( -4.207604E-03   4.153036E-03) )
------------------------------------------------------------
 Chi-Squared =      38.31399     using    59 PHA bins.
 Reduced chi-squared =     0.6721752     for     57 degrees of freedom
 Null hypothesis probability = 0.973
 
Photon flux (15-150 keV)    in 0.5480 sec: 5.30561 ( -0.46875  0.4696 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.96715e-07 ( -2.64859e-08  2.65402e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.212 sec. to    0.760 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.505907     ( -0.724325   0.408729 )
Epeak [keV] : 328.877      ( -328.867 9671.12 )
Norm@50keV  : 6.052313E-02    ( -1.772897E-02   5.643574E-02) )
------------------------------------------------------------
 Chi-Squared =      37.64657     using    59 PHA bins.
 Reduced chi-squared =     0.6722602     for     56 degrees of freedom
 Null hypothesis probability = 0.972
 
Photon flux (15-150 keV)    in 0.5480 sec: 5.30500 ( -0.46864  0.46949 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.96095e-07 ( -2.69775e-08  2.68312e-08 ) ergs/cm2
 
Band function
Time interval is from    0.212 sec. to    0.760 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.848434   ( -9.15157   5.84843 )
beta        : -0.790408    ( -0.149626   0.155546 )
Epeak [keV] : 12.9296      ( -12.8296 9987.07 )
Norm@50keV   : 7.147227E-02    ( -2.566674E-02   81836.5 )
------------------------------------------------------------
 Chi-Squared =      38.31398     using    59 PHA bins.
 Reduced chi-squared =     0.6966178     for     55 degrees of freedom
 Null hypothesis probability = 0.958
 
Photon flux (15-150 keV)    in 0.5480 sec: 5.27387 ( -0.47279  0.47425 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.94745e-07 ( -2.70361e-08  2.76482e-08 ) ergs/cm2
 
Plot creation:
Wed Jan  2 15:43:28 EST 2008