batgrbproduct Analysis for Trigger=424716

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Jun 15 16:32:36 EDT 2010
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger424716/GCN5_download_cron
======================================================================

  Trigger: 00424716      Segment: 000

  BAT Trigger Time: 298244312   [s; MET]
      Trigger Stop: 298244376   [s; MET]
               UTC: 2010-06-14T21:38:26.107200    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 263.519270851498   Dec: 49.2267444131814  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    14.39
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    14.39

  Flight Position:   [ source = BAT ]
    RA: 263.519270851498   Dec: 49.2267444131814  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 263.534082538465   Dec: 49.2323223830998  [deg; J2000]  
        { 17h 34m 08.2s , +49d 13' 56.4" }
         +/- 1.63048454952003 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.623166504191694 [arcmin] (formal 1-sigma fit error)
    SNR: 15.1289513389692
 
  Angular difference between Flight and Ground position is 0.669936 arcmin
 
  Partial Coding Fraction: 0.5625    [ including projection effects ]

  Duration
     T90: 225 +/- 55.7314991723711
        Measured from: 1.19209289550781e-07
                   to: 225.000000119209     [s; relative to TRIGTIME]
     T50: 79 +/- 20.6155281280883
        Measured from: 30.0000001192093
                   to: 109.000000119209     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 31     
                   to: 32     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -9     
                   to: 282     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.712221   1.787818   1.069225   0.224191
           0.110247   0.115863   0.108781   0.112821 [error]
 Peak      0.024377   0.012900   0.041390   0.007027
           0.007787   0.008550   0.007889   0.008108 [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 5.41e-07 7.87e-07 8.53e-07 1.73e-06 2.71e-06 3.91e-06   erg/cm2
              Error 6.12e-08 5.78e-08 1.09e-07 4.50e-07 2.45e-07 5.55e-07   erg/cm2
Peak flux Power-law 1.71e-01 2.14e-01 1.95e-01 3.10e-01 6.86e-01 8.90e-01   ph/cm2/s
              Error 9.86e-02 7.38e-02 6.52e-02 2.37e-01 2.00e-01 2.80e-01   ph/cm2/s
 
Fluence   Cutoff-PL 5.34e-07 7.99e-07 8.50e-07 1.34e-06 2.67e-06 3.52e-06   erg/cm2
              Error 6.75e-08 7.10e-08 8.29e-08 7.08e-07 2.82e-07 9.19e-07   erg/cm2
Peak flux Cutoff-PL 1.81e-01 2.19e-01 1.91e-01 3.09e-01 6.86e-01 8.74e-01   ph/cm2/s
              Error 1.40e-01 9.22e-02 5.79e-02 2.36e-01 2.00e-01 3.59e-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 7.97e-01 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    1.884    0.147    -      -           1.01e-03 9.16e-05   72.410 57
CPL   1.718    0.000      73.8    0.0      1.25e-03 0.00e+00   72.240 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.132    0.555    -      -           5.90e-03 1.67e-03   73.690 57
CPL   0.935    0.000     344.8    0.0      7.06e-03 0.00e+00   73.680 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: 143.808000 sec.
T50 in the 50-300 keV band: 56.768000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  291.000   -9.000  282.000
T90   225.000    0.000  225.000
T50    79.000   30.000  109.000
Peak    1.000   31.000   32.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  263.5341 +49.2323 0.0127   28.3   42.3       2.5387    15.1  TRIG_00424716       
------------------------------------------
 
Foreground time interval of the image:
 -9.000  71.501 (delta_t =  80.501 [sec])
Background time interval of the image:
-239.000 -200.210 (delta_t =  38.790 [sec])
-199.000  -9.000 (delta_t = 190.000 [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   -9.000 sec. to  282.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.88406     ( -0.145077   0.14952 )
Norm@50keV  : 1.01427E-03    ( -9.24315e-05   9.08196e-05 )
------------------------------------------------------------
# Chi-Squared =          72.41 using 59 PHA bins.
# Reduced chi-squared =          1.270 for     57 degrees of freedom 
# Null hypothesis probability =   8.202497e-02
 
Photon flux (15-150 keV)    in 291 sec: 0.144583 ( -0.0106757  0.0106827 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.71332e-06 ( -2.42325e-07  2.46786e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -9.000 sec. to  282.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.71802     (     )
Epeak [keV] : 73.8375      (   )
Norm@50keV  : 1.25329E-03    (     )
------------------------------------------------------------
# Chi-Squared =          72.24 using 59 PHA bins.
# Reduced chi-squared =          1.290 for     56 degrees of freedom 
# Null hypothesis probability =   7.098571e-02
 
Photon flux (15-150 keV)    in 291 sec: 0.143513 ( -0.010956  0.01242 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.67015e-06 ( -2.94501e-07  2.69824e-07 ) ergs/cm2
 
Band function
Time interval is from   -9.000 sec. to  282.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.501833   ( 0.499951   0.499951 )
beta        : -1.92117    ( 1.92116   0.173419 )
Epeak [keV] : 25.7322      ( -25.7057 398.721 )
Norm@50keV   : 1.16276E-02    ( -0.0117963   213.821 )
------------------------------------------------------------
# Chi-Squared =          72.10 using 59 PHA bins.
# Reduced chi-squared =          1.311 for     55 degrees of freedom 
# Null hypothesis probability =   6.074512e-02
 
Photon flux (15-150 keV)    in 291 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]    : 10.4733  (  )
R^2/D10^2   : 5.44927E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =         117.83 using 59 PHA bins.
# Reduced chi-squared =         2.0671 for     57 degrees of freedom 
# Null hypothesis probability =   3.971993e-06
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.593e-07   4.627e-08
25- 50  9.523e-07   9.166e-08
50-150  5.673e-07   1.106e-07
15-150  1.879e-06   1.750e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 83.8597       (-20.5081      32.8035)
Norm        : 0.661279       (-0.0718868     0.0885627)
------------------------------------------------------------
# Chi-Squared =          73.94 using 59 PHA bins.
# Reduced chi-squared =          1.297 for     57 degrees of freedom 
# Null hypothesis probability =   6.516028e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.007e-07   5.587e-08
25- 50  8.335e-07   6.868e-08
50-150  1.214e-06   4.493e-07
15-150  2.548e-06   4.736e-07
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.82805        (-1.03755      1.5329)
R1^2/D10^2  : 0.366375        (-0.256584      0.564396)
kT2 [keV]   : 22.1188        (-4.08244      9.36104)
R2^2/D10^2  : 2.55991E-03    (   )
------------------------------------------------------------
# Chi-Squared =          72.93 using 59 PHA bins.
# Chi-Squared =          72.89 using 59 PHA bins.
# Reduced chi-squared =          1.326 for     55 degrees of freedom 
# Reduced chi-squared =          1.325 for     55 degrees of freedom 
# Null hypothesis probability =   5.318835e-02
# Null hypothesis probability =   5.356587e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.356e-07   1.619e-07
25- 50  7.773e-07   2.341e-07
50-150  1.282e-06   7.022e-07
15-150  2.595e-06   1.056e-06

Peak spectrum fit

Power-law model
Time interval is from   31.000 sec. to   32.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.13242     ( -0.557836   0.552249 )
Norm@50keV  : 5.89530E-03    ( -0.00167144   0.0016708 )
------------------------------------------------------------
# Chi-Squared =          73.69 using 59 PHA bins.
# Reduced chi-squared =          1.293 for     57 degrees of freedom 
# Null hypothesis probability =   6.764586e-02
 
Photon flux (15-150 keV)    in 1 sec: 0.686130 ( -0.199262  0.200232 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.10114e-08 ( -1.95031e-08  1.98347e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   31.000 sec. to   32.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.935113     (     )
Epeak [keV] : 344.806      (   )
Norm@50keV  : 7.06435E-03    (     )
------------------------------------------------------------
# Chi-Squared =          73.68 using 59 PHA bins.
# Reduced chi-squared =          1.316 for     56 degrees of freedom 
# Null hypothesis probability =   5.670114e-02
 
Photon flux (15-150 keV)    in 1 sec: 0.685849 ( -0.199195  0.200177 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.09263e-08 ( -1.95415e-08  1.94829e-08 ) ergs/cm2
 
Band function
Time interval is from   31.000 sec. to   32.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -2.91078   ( 3.28998   2.91078 )
beta        : -1.13241    ( -0.552076   0.557776 )
Epeak [keV] : 204.174      ( -204.174 -204.174 )
Norm@50keV   : 0.801254    ( -0.226836   0.227092 )
------------------------------------------------------------
# Chi-Squared =          73.69 using 59 PHA bins.
# Reduced chi-squared =          1.340 for     55 degrees of freedom 
# Null hypothesis probability =   4.698738e-02
 
Photon flux (15-150 keV)    in 1 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]    : 24.8669  (-7.14378  12.2242)
R^2/D10^2   : 1.65605E-02  (-0.0165618   0.0310754)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          74.93 using 59 PHA bins.
# Reduced chi-squared =          1.315 for     57 degrees of freedom 
# Null hypothesis probability =   5.580936e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.784e-09   1.119e-09
25- 50  1.009e-08   6.165e-09
50-150  4.632e-08   2.897e-08
15-150  5.819e-08   3.502e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.349       (-100.898      -199.9)
Norm        : 2.79741       (-0.818371     0.818346)
------------------------------------------------------------
# Chi-Squared =          75.73 using 59 PHA bins.
# Reduced chi-squared =          1.329 for     57 degrees of freedom 
# Null hypothesis probability =   4.913828e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.966e-09   4.089e-09
25- 50  1.340e-08   7.890e-09
50-150  2.939e-08   1.756e-08
15-150  4.975e-08   2.948e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.03947        (-1.85805      2.74218)
R1^2/D10^2  : 27.7607        (-27.3525      70639.6)
kT2 [keV]   : 28.4609        (-8.43746      17.2647)
R2^2/D10^2  : 1.03748E-02    (-0.00772044   0.0225308)
------------------------------------------------------------
# Chi-Squared =          68.69 using 59 PHA bins.
# Reduced chi-squared =          1.249 for     55 degrees of freedom 
# Null hypothesis probability =   1.015265e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.983e-09   4.027e-09
25- 50  9.045e-09   5.300e-09
50-150  4.773e-08   2.967e-08
15-150  6.376e-08   3.490e-08
Plot creation:
Tue Jun 15 16:59:32 EDT 2010