batgrbproduct Analysis for Trigger=421814

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu May 13 22:47:46 EDT 2010
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger421814/GCN5_download_cron
======================================================================

  Trigger: 00421814      Segment: 000

  BAT Trigger Time: 295409234.56   [s; MET]
      Trigger Stop: 295409246.72   [s; MET]
               UTC: 2010-05-13T02:07:08.767460    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 169.57995036142   Dec: 3.60539838785235  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.4
     Image Trigger?:     NO
     Rate S/N Ratio:     10.8627804912002  [ if not an image trigger ]
     Image S/N Ratio:    10.4

  Flight Position:   [ source = BAT ]
    RA: 169.57995036142   Dec: 3.60539838785235  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 169.601916029067   Dec: 3.6106060234992  [deg; J2000]  
        { 11h 18m 24.5s , +03d 36' 38.2" }
         +/- 1.3867097095043 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.617858638013318 [arcmin] (formal 1-sigma fit error)
    SNR: 19.0669782348437
 
  Angular difference between Flight and Ground position is 1.351931 arcmin
 
  Partial Coding Fraction: 0.90625    [ including projection effects ]

  Duration
     T90: 72.4719999432564 +/- 14.8708607591715
        Measured from: -32.4919998645782
                   to: 39.9800000786781     [s; relative to TRIGTIME]
     T50: 24.8599998950958 +/- 6.63077976956865
        Measured from: -5.0479998588562
                   to: 19.8120000362396     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.08799999952316     
                   to: 2.08799999952316     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -46.0479999780655     
                   to: 44.5640000104904     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.649910   0.868573   0.539763   0.100630
           0.053028   0.055238   0.049109   0.043634 [error]
 Peak      0.013396   0.032300   0.019282   0.007458
           0.005812   0.006255   0.005433   0.004683 [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 2.03e-07 3.47e-07 4.51e-07 1.19e-06 1.33e-06 2.19e-06   erg/cm2
              Error 2.46e-08 2.60e-08 4.82e-08 2.68e-07 1.14e-07 3.09e-07   erg/cm2
Peak flux Power-law 1.62e-01 1.85e-01 1.51e-01 2.07e-01 5.74e-01 7.06e-01   ph/cm2/s
              Error 7.14e-02 5.04e-02 4.39e-02 1.29e-01 1.41e-01 1.79e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.72e-07 3.02e-07 3.89e-07 8.16e-07 1.13e-06 1.67e-06   erg/cm2
              Error 2.53e-08 2.90e-08 2.58e-08 1.17e-07 4.93e-07 0.00e+00   erg/cm2
Peak flux Cutoff-PL 1.62e-01 1.85e-01 1.51e-01 2.06e-01 5.74e-01 7.04e-01   ph/cm2/s
              Error 7.14e-02 5.04e-02 4.39e-02 1.28e-01 1.41e-01 1.78e-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 0.00e+00 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    1.620    0.134    -      -           1.57e-03 1.24e-04   45.670 57
CPL   1.364    0.437     115.6    0.0      2.14e-03 0.00e+00   45.550 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.289    0.430    -      -           4.82e-03 1.16e-03   45.560 57
CPL   1.253    0.000     939.1    0.0      5.01e-03 0.00e+00   45.580 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: 52.672000 sec.
T50 in the 50-300 keV band: 27.968000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   90.612  -46.048   44.564
T90    72.472  -32.492   39.980
T50    24.860   -5.048   19.812
Peak    1.000    1.088    2.088

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  169.6019  +3.6106 0.0101   24.0  174.2       2.3177    19.1  TRIG_00421814       
------------------------------------------
 
Foreground time interval of the image:
-46.048  44.564 (delta_t =  90.612 [sec])
Background time interval of the image:
-239.560 -46.048 (delta_t = 193.512 [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  -46.048 sec. to   44.564 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.62002     ( -0.133461   0.13534 )
Norm@50keV  : 1.56780E-03    ( -0.000124526   0.000123392 )
------------------------------------------------------------
# Chi-Squared =          45.67 using 59 PHA bins.
# Reduced chi-squared =         0.8012 for     57 degrees of freedom 
# Null hypothesis probability =   8.593349e-01
 
Photon flux (15-150 keV)    in 90.61 sec: 0.202739 ( -0.0151177  0.0151297 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.32543e-06 ( -1.131e-07  1.14295e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -46.048 sec. to   44.564 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.36436     ( -0.494976   0.379453 )
Epeak [keV] : 115.596      (   )
Norm@50keV  : 2.13648E-03    (     )
------------------------------------------------------------
# Chi-Squared =          45.55 using 59 PHA bins.
# Reduced chi-squared =         0.8135 for     56 degrees of freedom 
# Null hypothesis probability =   8.394025e-01
 
Photon flux (15-150 keV)    in 90.61 sec: 0.173069 ( -0.014466  0.014221 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.12535e-06 ( -1.21254e-07  1.12701e-07 ) ergs/cm2
 
Band function
Time interval is from  -46.048 sec. to   44.564 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.05087   ( 1.04827   1.04827 )
beta        : -1.77320    ( 1.77411   0.245741 )
Epeak [keV] : 64.2808      ( -63.8452 -63.8452 )
Norm@50keV   : 3.41470E-03    ( -0.00346526   118.948 )
------------------------------------------------------------
# Chi-Squared =          44.24 using 59 PHA bins.
# Reduced chi-squared =         0.8043 for     55 degrees of freedom 
# Null hypothesis probability =   8.502155e-01
 
Photon flux (15-150 keV)    in 90.61 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]    : 12.5957  (-1.1432  1.30048)
R^2/D10^2   : 4.11080E-02  (-0.0123265   0.0170617)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          84.93 using 59 PHA bins.
# Reduced chi-squared =          1.490 for     57 degrees of freedom 
# Null hypothesis probability =   9.618493e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.253e-07   1.595e-08
25- 50  4.169e-07   3.815e-08
50-150  4.103e-07   7.090e-08
15-150  9.525e-07   9.387e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 160.295       (8.93858      -101.39)
Norm        : 0.831946       (-0.068113     0.0783089)
------------------------------------------------------------
# Chi-Squared =          45.71 using 59 PHA bins.
# Reduced chi-squared =         0.8020 for     57 degrees of freedom 
# Null hypothesis probability =   8.582921e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.925e-07   1.957e-08
25- 50  3.601e-07   2.736e-08
50-150  7.300e-07   1.198e-07
15-150  1.283e-06   1.468e-07
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.82076        (-1.49686      2.02153)
R1^2/D10^2  : 0.120284        (-0.0707952      0.122139)
kT2 [keV]   : 46.7254        (-12.4366      90.4462)
R2^2/D10^2  : 3.53296E-04    (   )
------------------------------------------------------------
# Chi-Squared =          45.30 using 59 PHA bins.
# Chi-Squared =          45.23 using 59 PHA bins.
# Reduced chi-squared =         0.8236 for     55 degrees of freedom 
# Reduced chi-squared =         0.8224 for     55 degrees of freedom 
# Null hypothesis probability =   8.215356e-01
# Null hypothesis probability =   8.233657e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.770e-07   3.855e-08
25- 50  3.852e-07   9.170e-08
50-150  7.592e-07   4.131e-07
15-150  1.321e-06   5.033e-07

Peak spectrum fit

Power-law model
Time interval is from    1.088 sec. to    2.088 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.28920     ( -0.437442   0.42179 )
Norm@50keV  : 4.81870E-03    ( -0.00116415   0.00116067 )
------------------------------------------------------------
# Chi-Squared =          45.56 using 59 PHA bins.
# Reduced chi-squared =         0.7993 for     57 degrees of freedom 
# Null hypothesis probability =   8.619886e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.573756 ( -0.140662  0.14105 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.77447e-08 ( -1.27962e-08  1.30438e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.088 sec. to    2.088 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.25334     (     )
Epeak [keV] : 939.063      (   )
Norm@50keV  : 5.00678E-03    (     )
------------------------------------------------------------
# Chi-Squared =          45.58 using 59 PHA bins.
# Reduced chi-squared =         0.8139 for     56 degrees of freedom 
# Null hypothesis probability =   8.386948e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.573605 ( -0.140623  0.141012 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.77491e-08 ( -1.27996e-08  1.30497e-08 ) ergs/cm2
 
Band function
Time interval is from    1.088 sec. to    2.088 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.194298   ( 0.660533   0.660533 )
beta        : -1.50951    ( 1.41008   0.539201 )
Epeak [keV] : 53.9736      ( -53.7862 128.608 )
Norm@50keV   : 3.84555E-02    ( -0.0400105   69.6776 )
------------------------------------------------------------
# Chi-Squared =          45.23 using 59 PHA bins.
# Reduced chi-squared =         0.8223 for     55 degrees of freedom 
# Null hypothesis probability =   8.235278e-01
 
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]    : 14.4369  (-3.90429  7.70747)
R^2/D10^2   : 7.60488E-02  (-0.0579803   0.153847)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          50.25 using 59 PHA bins.
# Reduced chi-squared =         0.8815 for     57 degrees of freedom 
# Null hypothesis probability =   7.244542e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.337e-09   2.070e-09
25- 50  1.279e-08   5.094e-09
50-150  1.782e-08   1.050e-08
15-150  3.395e-08   1.585e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.359       (-100.814      -199.859)
Norm        : 2.36741       (-0.575372     0.575349)
------------------------------------------------------------
# Chi-Squared =          46.70 using 59 PHA bins.
# Reduced chi-squared =         0.8193 for     57 degrees of freedom 
# Null hypothesis probability =   8.330152e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.895e-09   3.393e-09
25- 50  1.134e-08   6.545e-09
50-150  2.487e-08   1.409e-08
15-150  4.211e-08   2.419e-08
Double BB
R1^2/D10^2  : 0.203077        (-0.146915      0.22272)
kT2 [keV]   : 150.192        (-79.169      -103.252)
R2^2/D10^2  : 1.38669E-04    (   )
------------------------------------------------------------
# Chi-Squared =          48.77 using 59 PHA bins.
# Chi-Squared =          43.75 using 59 PHA bins.
# Chi-Squared =          43.73 using 59 PHA bins.
# Reduced chi-squared =         0.8866 for     55 degrees of freedom 
# Reduced chi-squared =         0.7955 for     55 degrees of freedom 
# Reduced chi-squared =         0.7952 for     55 degrees of freedom 
# Null hypothesis probability =   7.103126e-01
# Null hypothesis probability =   8.623624e-01
# Null hypothesis probability =   8.627965e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.497e-09   1.835e-09
25- 50  1.181e-08   7.014e-09
50-150  1.989e-08   1.263e-08
15-150  3.520e-08   2.110e-08
Plot creation:
Thu May 13 23:11:31 EDT 2010