batgrbproduct Analysis for Trigger=106415

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.41
    Process Start Time (local time): Fri Jan  4 20:58:22 EST 2008
             Host Name: gcn5
   Current Working Dir: /local/data/raid2/prebascript/trigger106415/SDC
======================================================================

  Trigger: 00106415      Segment: 000

  BAT Trigger Time: 130509600.448   [s; MET]
      Trigger Stop: 130509601.472   [s; MET]
               UTC: 2005-02-19T12:40:01.049120    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 166.429163614216   Dec: -40.6800821105552  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8
     Image Trigger?:     NO
     Rate S/N Ratio:     14.6969384566991  [ if not an image trigger ]
     Image S/N Ratio:    8

  Flight Position:   [ source = BAT ]
    RA: 166.429163614216   Dec: -40.6800821105552  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 166.414224554364   Dec: -40.6763673487375  [deg; J2000]  
        { 11h 05m 39.4s , -40d 40' 34.9" }
         +/- 0.883174783726099 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.293370348824803 [arcmin] (formal 1-sigma fit error)
    SNR: 36.3240762832966
    RA  =  11h  5m 39.4s  (166.414225 deg.)
    Dec = -40d 40' 35" (-40.676367 deg.)
 
  Angular difference between Flight and Ground position is 0.715379 arcmin
 
  Partial Coding Fraction: 0.2324219    [ including projection effects ]

  Duration
     T90: 23.7440000027418 +/- 1.85148588672307
        Measured from: -3.54799999296665
                   to: 20.1960000097752     [s; relative to TRIGTIME]
     T50: 10.0480000078678 +/- 0.788243609689543
        Measured from: 3.304000005126
                   to: 13.3520000129938     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 9.54000000655651     
                   to: 10.5400000065565     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -5.80799999833107     
                   to: 29.3159999996424     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.053638   2.146520   2.157160   0.364716
           0.059125   0.065976   0.059521   0.045519 [error]
 Peak      0.080699   0.140880   0.160689   0.037616
           0.011003   0.013716   0.013349   0.009127 [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 4.60e-07 9.53e-07 1.54e-06 5.56e-06 4.26e-06 8.42e-06   erg/cm2
              Error 3.18e-08 3.99e-08 5.78e-08 4.59e-07 1.49e-07 5.08e-07   erg/cm2
Peak flux Power-law 9.17e-01 1.12e+00 9.82e-01 1.49e+00 3.53e+00 4.50e+00   ph/cm2/s
              Error 1.66e-01 1.27e-01 1.01e-01 3.11e-01 3.49e-01 4.36e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.33e-07 1.02e-06 1.75e-06 1.84e-06 4.11e-06 4.89e-06   erg/cm2
              Error 3.99e-08 4.65e-08 7.75e-08 4.15e-07 1.58e-07 4.29e-07   erg/cm2
Peak flux Cutoff-PL 7.93e-01 1.16e+00 1.07e+00 9.29e-01 3.50e+00 3.95e+00   ph/cm2/s
              Error 2.06e-01 1.43e-01 1.38e-01 4.82e-01 3.52e-01 5.88e-01   ph/cm2/s
 
Fluence        Band 3.32e-07 1.01e-06 1.75e-06 1.85e-06 4.10e-06 4.95e-06   erg/cm2
              Error 3.94e-08 4.63e-08 7.73e-08 4.13e-07 1.58e-07 4.54e-07   erg/cm2
Peak flux      Band 7.93e-01 1.16e+00 1.07e+00 9.30e-01 3.50e+00 3.95e+00   ph/cm2/s
              Error 2.05e-01 1.43e-01 1.38e-01 4.88e-01 3.52e-01 5.91e-01   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.311    0.058    -      -           1.23e-02 4.26e-04  103.366 57
CPL   0.105    0.308      91.8    9.9      4.11e-02 1.25e-02   45.508 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.183    0.153    -      -           3.02e-02 2.86e-03   48.233 57
CPL   0.607    0.649     142.0 4953.3      5.46e-02 3.95e-02   45.553  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: 21.696000 sec.
T50 in the 50-300 keV band: 9.408000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   35.124   -5.808   29.316
T90    23.744   -3.548   20.196
T50    10.048    3.304   13.352
Peak    1.000    9.540   10.540

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  166.4142 -40.6764 0.0052   43.1 -133.5       4.7937    36.3  TRIG_00106415       
------------------------------------------
 
Foreground time interval of the image:
 -5.808  14.957 (delta_t =  20.765 [sec])
Background time interval of the image:
-299.448  -5.808 (delta_t = 293.640 [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   -5.808 sec. to   29.316 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.31054     ( -5.780125E-02   5.746460E-02) )
Norm@50keV  : 1.229844E-02    ( -4.260093E-04   4.256740E-04) )
------------------------------------------------------------
 Chi-Squared =      103.3664     using    59 PHA bins.
 Reduced chi-squared =      1.813446     for     57 degrees of freedom
 Null hypothesis probability = 1.680E-04
 
Photon flux (15-150 keV)    in 35.12 sec: 1.47012 ( -0.05576  0.05594 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.25798e-06 ( -1.49646e-07  1.48839e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -5.808 sec. to   29.316 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.105198     ( -0.319221   0.297655 )
Epeak [keV] : 91.7825      ( -8.03968 11.8273 )
Norm@50keV  : 4.111040E-02    ( -1.029941E-02   1.475585E-02) )
------------------------------------------------------------
 Chi-Squared =      45.50836     using    59 PHA bins.
 Reduced chi-squared =     0.8126493     for     56 degrees of freedom
 Null hypothesis probability = 0.841
 
Photon flux (15-150 keV)    in 35.12 sec: 1.38676 ( -0.05815  0.05861 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.10598e-06 ( -1.57513e-07  1.58778e-07 ) ergs/cm2
 
Band function
Time interval is from   -5.808 sec. to   29.316 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.105432   ( -0.297157   0.319630 )
beta        : -9.25942    ( -0.740577   7.14462 )
Epeak [keV] : 91.7716      ( -8.05515 11.7947 )
Norm@50keV   : 4.110621E-02    ( -1.029245E-02   1.477893E-02) )
------------------------------------------------------------
 Chi-Squared =      45.50910     using    59 PHA bins.
 Reduced chi-squared =     0.8274382     for     55 degrees of freedom
 Null hypothesis probability = 0.816
 
Photon flux (15-150 keV)    in 35.12 sec: 1.38684 ( -0.05823  0.05842 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.10493e-06 ( -1.57548e-07  1.57478e-07 ) ergs/cm2
 

Peak spectrum fit using the pre-slew DRM

Power-law model
Time interval is from    9.540 sec. to   10.540 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.18294     ( -0.153575   0.151565 )
Norm@50keV  : 3.018356E-02    ( -2.858555E-03   2.852233E-03) )
------------------------------------------------------------
 Chi-Squared =      48.23327     using    59 PHA bins.
 Reduced chi-squared =     0.8461978     for     57 degrees of freedom
 Null hypothesis probability = 0.789
 
Photon flux (15-150 keV)    in 1.000 sec: 3.53465 ( -0.34892  0.34955 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.0767e-07 ( -3.062e-08  3.0764e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    9.540 sec. to   10.540 sec.
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.607337     ( -0.702466   0.594645 )
Epeak [keV] : 141.966      ( -48.6533 9858.03 )
Norm@50keV  : 5.461834E-02    ( -2.489481E-02   5.403746E-02) )
------------------------------------------------------------
 Chi-Squared =      45.55317     using    59 PHA bins.
 but latest trial  3.033535E-02 gives Chi-Squared =   2.63168
 Reduced chi-squared =     0.8134495     for     56 degrees of freedom
 Null hypothesis probability = 0.839
 
Photon flux (15-150 keV)    in 1.000 sec: 3.49544 ( -0.35205  0.35151 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.06609e-07 ( -3.1429e-08  3.1327e-08 ) ergs/cm2
 
Band function
Time interval is from    9.540 sec. to   10.540 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.604917   ( -0.628178   0.700068 )
beta        : -8.21137    ( -1.78863   7.06755 )
Epeak [keV] : 141.553      ( -141.453 9858.45 )
Norm@50keV   : 5.476032E-02    ( -2.430136E-02   5.392212E-02) )
------------------------------------------------------------
 Chi-Squared =      45.55320     using    59 PHA bins.
 Reduced chi-squared =     0.8282399     for     55 degrees of freedom
 Null hypothesis probability = 0.814
 
Photon flux (15-150 keV)    in 1.000 sec: 3.49558 ( -0.35195  0.35253 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.06433e-07 ( -3.143e-08  3.1302e-08 ) ergs/cm2
 
Plot creation:
Fri Jan  4 21:09:10 EST 2008