batgrbproduct Analysis for Trigger=100703

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.41
    Process Start Time (local time): Fri Jan  4 18:53:32 EST 2008
             Host Name: gcn5
   Current Working Dir: /local/data/raid2/prebascript/trigger100703/SDC
======================================================================

  Trigger: 00100703      Segment: 000

  BAT Trigger Time: 125612457.024   [s; MET]
      Trigger Stop: 125612458.048   [s; MET]
               UTC: 2004-12-24T20:20:57.698840    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 56.1991351820266   Dec: -6.61701115766916  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10
     Image Trigger?:     NO
     Rate S/N Ratio:     19.824227601599  [ if not an image trigger ]
     Image S/N Ratio:    10

  Flight Position:   [ source = BAT ]
    RA: 56.1991351820266   Dec: -6.61701115766916  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 56.2036030880727   Dec: -6.66301119436289  [deg; J2000]  
        { 03h 44m 48.9s , -06d 39' 46.8" }
         +/- 2.73435452072461 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.16188541381063 [arcmin] (formal 1-sigma fit error)
    SNR: 7.22836480790152
    RA  =   3h 44m 48.9s  (56.203603 deg.)
    Dec =  -6d 39' 47" (-6.663011 deg.)
 
  Angular difference between Flight and Ground position is 2.772817 arcmin
 
  Partial Coding Fraction: 0.2578125    [ including projection effects ]

  Duration
     T90: 177.232000008225 +/- 18.9121489964638
        Measured from: -93.1720000058413
                   to: 84.0600000023842     [s; relative to TRIGTIME]
     T50: 37.5320000052452 +/- 4.19237402729542
        Measured from: -11.3840000033379
                   to: 26.1480000019073     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.0600000023841858     
                   to: 0.939999997615814     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -109.62800000608     
                   to: 116.271999999881     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     3.768206   5.647019   3.698819   0.757867
           0.137193   0.143595   0.123214   0.099243 [error]
 Peak      0.068500   0.131032   0.120358   0.034194
           0.010289   0.011977   0.011290   0.008051 [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 1.55e-06 2.48e-06 3.01e-06 7.16e-06 9.09e-06 1.42e-05   erg/cm2
              Error 9.68e-08 9.18e-08 1.27e-07 6.62e-07 3.11e-07 7.43e-07   erg/cm2
Peak flux Power-law 8.00e-01 9.39e-01 7.94e-01 1.14e+00 2.94e+00 3.67e+00   ph/cm2/s
              Error 1.51e-01 1.11e-01 8.64e-02 2.54e-01 3.05e-01 3.68e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.34e-06 2.61e-06 3.16e-06 3.24e-06 8.73e-06 1.04e-05   erg/cm2
              Error 1.22e-07 1.07e-07 1.46e-07 9.58e-07 3.48e-07 1.00e-06   erg/cm2
Peak flux Cutoff-PL 7.28e-01 9.70e-01 8.42e-01 7.88e-01 2.91e+00 3.32e+00   ph/cm2/s
              Error 1.84e-01 1.24e-01 8.59e-02 4.38e-01 3.07e-01 5.37e-01   ph/cm2/s
 
Fluence        Band 1.30e-06 2.63e-06 3.09e-06 4.76e-06 8.71e-06 1.18e-05   erg/cm2
              Error 1.34e-07 1.23e-07 1.80e-07 1.67e-06 3.42e-07 1.77e-06   erg/cm2
Peak flux      Band 7.27e-01 9.71e-01 8.41e-01 8.65e-01 2.91e+00 3.41e+00   ph/cm2/s
              Error 1.91e-01 1.50e-01 1.21e-01 3.39e-01 3.07e-01 5.44e-01   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.722    0.061    -      -           4.38e-03 1.47e-04   56.080 57
CPL   1.052    0.281      74.1   12.6      9.18e-03 2.85e-03   36.692 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.242    0.162    -      -           2.49e-02 2.45e-03   66.460 57
CPL   0.836    0.619     163.3 5000.0      3.83e-02 2.81e-02   65.240 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: 132.032000 sec.
T50 in the 50-300 keV band: 39.680000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  225.900 -109.628  116.272
T90   177.232  -93.172   84.060
T50    37.532  -11.384   26.148
Peak    1.000   -0.060    0.940

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   56.2036  -6.6630 0.0269   40.2   35.6      10.8097     7.2  TRIG_00100703       
------------------------------------------
 
Foreground time interval of the image:
-109.628  80.622 (delta_t = 190.250 [sec])
 81.976 116.272 (delta_t =  34.296 [sec])
Background time interval of the image:
-115.819 -109.628 (delta_t =   6.191 [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
Multiple GTIs in the spectrum
tstart tstop
-109.628000 80.622000
81.976000 116.272000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.72219     ( -6.058967E-02   6.072164E-02) )
Norm@50keV  : 4.381928E-03    ( -1.467122E-04   1.466339E-04) )
------------------------------------------------------------
 Chi-Squared =      56.07959     using    59 PHA bins.
 Reduced chi-squared =     0.9838524     for     57 degrees of freedom
 Null hypothesis probability = 0.510
 
Photon flux (15-150 keV)    in 224.5 sec: 0.586555 ( -0.021994  0.022087 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.09315e-06 ( -3.11e-07  3.11741e-07 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-109.628000 80.622000
81.976000 116.272000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.05214     ( -0.290406   0.271571 )
Epeak [keV] : 74.1018      ( -8.63231 16.4796 )
Norm@50keV  : 9.175772E-03    ( -2.329303E-03   3.375941E-03) )
------------------------------------------------------------
 Chi-Squared =      36.69213     using    59 PHA bins.
 Reduced chi-squared =     0.6552167     for     56 degrees of freedom
 Null hypothesis probability = 0.979
 
Photon flux (15-150 keV)    in 224.5 sec: 0.560774 ( -0.02395  0.024026 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.73049e-06 ( -3.48851e-07  3.46448e-07 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
-109.628000 80.622000
81.976000 116.272000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.889323   ( -0.381433   0.894404 )
beta        : -2.19558    ( -7.80442   0.303324 )
Epeak [keV] : 65.8439      ( -20.4914 20.1151 )
Norm@50keV   : 1.135053E-02    ( -4.093265E-03   2.990483E-02) )
------------------------------------------------------------
 Chi-Squared =      35.70105     using    59 PHA bins.
 Reduced chi-squared =     0.6491101     for     55 degrees of freedom
 Null hypothesis probability = 0.980
 
Photon flux (15-150 keV)    in 224.5 sec: 0.556806 ( -0.024157  0.025302 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.70901e-06 ( -3.41846e-07  3.43058e-07 ) ergs/cm2
 

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from   -0.060 sec. to    0.940 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.24229     ( -0.163103   0.160929 )
Norm@50keV  : 2.488151E-02    ( -2.454003E-03   2.451060E-03) )
------------------------------------------------------------
 Chi-Squared =      66.45986     using    59 PHA bins.
 Reduced chi-squared =      1.165962     for     57 degrees of freedom
 Null hypothesis probability = 0.183
 
Photon flux (15-150 keV)    in 1.000 sec: 2.93918 ( -0.30442  0.30498 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.49457e-07 ( -2.597e-08  2.6133e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.060 sec. to    0.940 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.836270     ( -0.715427   0.522521 )
Epeak [keV] : 163.326      ( -163.316 9836.67 )
Norm@50keV  : 3.828978E-02    ( -1.509898E-02   4.107018E-02) )
------------------------------------------------------------
 Chi-Squared =      65.23996     using    59 PHA bins.
 Reduced chi-squared =      1.164999     for     56 degrees of freedom
 Null hypothesis probability = 0.186
 
Photon flux (15-150 keV)    in 1.000 sec: 2.91448 ( -0.30636  0.30757 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.48065e-07 ( -2.6717e-08  2.6496e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.060 sec. to    0.940 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.541477   ( -9.45852   4.67998 )
beta        : -1.40147    ( -6.57949   2.29853 )
Epeak [keV] : 91.9020      ( -163.237 9836.66 )
Norm@50keV   : 5.942358E-02    ( -1.516408E-02   4.111947E-02) )
------------------------------------------------------------
 Chi-Squared =      65.27953     using    59 PHA bins.
 Reduced chi-squared =      1.186901     for     55 degrees of freedom
 Null hypothesis probability = 0.162
 
Photon flux (15-150 keV)    in 1.000 sec: 2.91069 ( -0.3034  0.31105 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.47905e-07 ( -2.6704e-08  2.6495e-08 ) ergs/cm2
 
Plot creation:
Fri Jan  4 19:15:30 EST 2008