batgrbproduct Analysis for Trigger=100433

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.41
    Process Start Time (local time): Fri Jan  4 18:30:55 EST 2008
             Host Name: gcn5
   Current Working Dir: /local/data/raid2/prebascript/trigger100433/GCN_download_cron
======================================================================

  Trigger: 00100433      Segment: 000

  BAT Trigger Time: 125276305.92   [s; MET]
      Trigger Stop: 125276306.944   [s; MET]
               UTC: 2004-12-20T22:58:26.599560    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 291.241207804425   Dec: 60.6860958775226  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    17
     Image Trigger?:     NO
     Rate S/N Ratio:     47.5184174820669  [ if not an image trigger ]
     Image S/N Ratio:    17

  Flight Position:   [ source = BAT ]
    RA: 291.241207804425   Dec: 60.6860958775226  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 291.280751410658   Dec: 60.6006973511897  [deg; J2000]  
        { 19h 25m 07.4s , +60d 36' 02.5" }
         +/- 0.958764129983551 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.318801658328038 [arcmin] (formal 1-sigma fit error)
    SNR: 32.3031156402186
    RA  =  19h 25m  7.4s  (291.280751 deg.)
    Dec =  60d 36'  3" (60.600697 deg.)
 
  Angular difference between Flight and Ground position is 5.254275 arcmin
 
  Partial Coding Fraction: 0.8671875    [ including projection effects ]

  Duration
     T90: 5.03600001335144 +/- 1.11830049478394
        Measured from: -0.0240000039339066
                   to: 5.01200000941753     [s; relative to TRIGTIME]
     T50: 2.19600000977516 +/- 0.322490315846379
        Measured from: 0.508000001311302
                   to: 2.70400001108646     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.0240000039339066     
                   to: 0.975999996066093     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.208000004291534     
                   to: 6.81199999153614     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.211617   0.252988   0.154666   0.035119
           0.013252   0.013794   0.011949   0.009651 [error]
 Peak      0.061484   0.077160   0.079122   0.016678
           0.005516   0.006029   0.005570   0.004097 [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 6.13e-08 1.02e-07 1.29e-07 3.26e-07 3.83e-07 6.16e-07   erg/cm2
              Error 6.86e-09 6.75e-09 1.20e-08 6.55e-08 2.79e-08 7.47e-08   erg/cm2
Peak flux Power-law 5.16e-01 5.85e-01 4.75e-01 6.43e-01 1.81e+00 2.22e+00   ph/cm2/s
              Error 7.72e-02 5.22e-02 4.47e-02 1.30e-01 1.45e-01 1.80e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.13e-08 1.02e-07 1.29e-07 3.23e-07 3.83e-07 5.18e-07   erg/cm2
              Error 6.86e-09 6.76e-09 1.20e-08 6.50e-08 2.79e-08 0.00e+00   erg/cm2
Peak flux Cutoff-PL 4.99e-01 5.92e-01 4.85e-01 5.43e-01 1.80e+00 2.12e+00   ph/cm2/s
              Error 9.52e-02 5.65e-02 5.23e-02 2.27e-01 1.49e-01 2.96e-01   ph/cm2/s
 
Fluence        Band 5.95e-08 1.03e-07 1.29e-07 3.03e-07 3.80e-07 5.99e-07   erg/cm2
              Error 6.81e-09 8.65e-09 1.27e-08 4.45e-08 3.06e-08 1.15e-07   erg/cm2
Peak flux      Band 4.97e-01 5.92e-01 4.84e-01 5.43e-01 1.80e+00 2.12e+00   ph/cm2/s
              Error 9.51e-02 5.73e-02 5.37e-02 2.27e-01 1.50e-01 2.77e-01   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.662    0.123    -      -           5.88e-03 3.99e-04   28.925 57
CPL   1.534    0.355     174.6    0.0      6.81e-03 3.04e-03   28.900 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.301    0.141    -      -           1.52e-02 1.18e-03   60.508 57
CPL   1.134    0.440     286.5 5000.0      1.81e-02 9.50e-03   60.243 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: 2.048000 sec.
T50 in the 50-300 keV band: 0.960000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    7.020   -0.208    6.812
T90     5.036   -0.024    5.012
T50     2.196    0.508    2.704
Peak    1.000   -0.024    0.976

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  291.2808 +60.6007 0.0060   15.6 -110.0       0.8071    32.3  TRIG_00100433       
------------------------------------------
 
Foreground time interval of the image:
 -0.208   6.812 (delta_t =   7.020 [sec])
Background time interval of the image:
-299.920  -0.208 (delta_t = 299.712 [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   -0.208 sec. to    6.812 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.66206     ( -0.121890   0.123544 )
Norm@50keV  : 5.877605E-03    ( -4.014750E-04   3.974861E-04) )
------------------------------------------------------------
 Chi-Squared =      28.92476     using    59 PHA bins.
 Reduced chi-squared =     0.5074519     for     57 degrees of freedom
 Null hypothesis probability = 0.999
 
Photon flux (15-150 keV)    in 7.020 sec: 0.770552 ( -0.050947  0.051087 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.83259e-07 ( -2.77416e-08  2.80182e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.208 sec. to    6.812 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.53388     ( -0.459209   0.250213 )
Epeak [keV] : 174.625      (   )
Norm@50keV  : 6.813840E-03    ( -6.437888E-04   5.426785E-03) )
------------------------------------------------------------
 Chi-Squared =      28.90047     using    59 PHA bins.
 Reduced chi-squared =     0.5160798     for     56 degrees of freedom
 Null hypothesis probability = 0.999
 
Photon flux (15-150 keV)    in 7.020 sec: 0.767176 ( -0.051032  0.053374 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.83294e-07 ( -2.77508e-08  2.80245e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.208 sec. to    6.812 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.46595   ( -8.53405   2.54770 )
beta        : -1.74176    ( -8.25823   0.197367 )
Epeak [keV] : 117.749      ( -117.649 9882.25 )
Norm@50keV   : 7.535551E-03    ( -2.040073E-03   64876.4 )
------------------------------------------------------------
 Chi-Squared =      28.74049     using    59 PHA bins.
 Reduced chi-squared =     0.5225544     for     55 degrees of freedom
 Null hypothesis probability = 0.999
 
Photon flux (15-150 keV)    in 7.020 sec: 0.765135 ( -0.027363  0.053987 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.79602e-07 ( -3.09877e-08  3.02316e-08 ) ergs/cm2
 

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from   -0.024 sec. to    0.976 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.30074     ( -0.140865   0.141128 )
Norm@50keV  : 1.518301E-02    ( -1.181703E-03   1.180403E-03) )
------------------------------------------------------------
 Chi-Squared =      60.50824     using    59 PHA bins.
 Reduced chi-squared =      1.061548     for     57 degrees of freedom
 Null hypothesis probability = 0.350
 
Photon flux (15-150 keV)    in 1.000 sec: 1.81162 ( -0.14481  0.1451 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.49995e-07 ( -1.3062e-08  1.3164e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.024 sec. to    0.976 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.13439     ( -0.581551   0.297558 )
Epeak [keV] : 286.538      ( -286.528 9713.46 )
Norm@50keV  : 1.813903E-02    ( -4.021760E-03   1.498171E-02) )
------------------------------------------------------------
 Chi-Squared =      60.24264     using    59 PHA bins.
 Reduced chi-squared =      1.075761     for     56 degrees of freedom
 Null hypothesis probability = 0.325
 
Photon flux (15-150 keV)    in 1.000 sec: 1.79952 ( -0.15016  0.14765 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.49089e-07 ( -1.3318e-08  1.311e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.024 sec. to    0.976 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.03424   ( -8.96576   6.03248 )
beta        : -1.30069    ( -8.38836   0.444768 )
Epeak [keV] : 47.6026      ( -304.710 9695.19 )
Norm@50keV   : 2.830101E-02    ( -3.821343E-03   972.273 )
------------------------------------------------------------
 Chi-Squared =      60.50830     using    59 PHA bins.
 Reduced chi-squared =      1.100151     for     55 degrees of freedom
 Null hypothesis probability = 0.284
 
Photon flux (15-150 keV)    in 1.000 sec: 1.79959 ( -0.15028  0.14974 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.48932e-07 ( -1.3702e-08  1.3526e-08 ) ergs/cm2
 
Plot creation:
Fri Jan  4 18:41:39 EST 2008