batgrbproduct Analysis for Trigger=547420

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Feb  1 17:21:11 EST 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger547420/GCN5_download_cron
======================================================================

  Trigger: 00547420      Segment: 000

  BAT Trigger Time: 381352219.072   [s; MET]
      Trigger Stop: 381352221.12   [s; MET]
               UTC: 2013-01-31T19:10:08.907360    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 173.951574019347   Dec: 15.0356350571936  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.85
     Image Trigger?:     NO
     Rate S/N Ratio:     16.7332005306815  [ if not an image trigger ]
     Image S/N Ratio:    7.85

  Flight Position:   [ source = BAT ]
    RA: 173.951574019347   Dec: 15.0356350571936  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 173.957549284148   Dec: 15.0317738355237  [deg; J2000]  
        { 11h 35m 49.8s , +15d 01' 54.4" }
         +/- 1.71518714110451 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.771640919170305 [arcmin] (formal 1-sigma fit error)
    SNR: 14.07303113312
 
  Angular difference between Flight and Ground position is 0.416603 arcmin
 
  Partial Coding Fraction: 0.515625    [ including projection effects ]

  Duration
     T90: 4.29999995231628 +/- 0.257402418116644
        Measured from: -0.0679998993873596
                   to: 4.23200005292892     [s; relative to TRIGTIME]
     T50: 2.79999995231628 +/- 0.872715334057104
        Measured from: 0.668000102043152
                   to: 3.46800005435944     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.280000030994415     
                   to: 0.719999969005585     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.280000030994415     
                   to: 4.36799997091293     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.106706   0.153680   0.152113   0.057105
           0.016598   0.017615   0.016265   0.014758 [error]
 Peak      0.036187   0.037704   0.037298   0.016281
           0.007696   0.008148   0.007696   0.007098 [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 3.02e-08 6.89e-08 1.24e-07 5.31e-07 3.38e-07 7.55e-07   erg/cm2
              Error 6.85e-09 9.10e-09 1.59e-08 1.61e-07 4.06e-08 1.68e-07   erg/cm2
Peak flux Power-law 2.91e-01 3.16e-01 2.44e-01 3.09e-01 9.68e-01 1.16e+00   ph/cm2/s
              Error 1.10e-01 7.14e-02 6.57e-02 1.82e-01 2.01e-01 2.53e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.04e-08 6.91e-08 1.24e-07 5.25e-07 7.48e-07 0.00e+00   erg/cm2
              Error 6.97e-09 9.08e-09 1.61e-08 1.72e-07 1.77e-07 0.00e+00   erg/cm2
Peak flux Cutoff-PL 2.96e-01 3.18e-01 2.43e-01 3.01e-01 9.69e-01 1.16e+00   ph/cm2/s
              Error 1.10e-01 7.01e-02 6.56e-02 2.22e-01 2.01e-01 2.63e-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 1.15e+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    1.149    0.204    -      -           7.07e-03 7.75e-04    0.000 57
CPL   1.144    0.393    10000.0    0.0      7.11e-03 0.00e+00    0.000 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.372    0.396    -      -           7.99e-03 1.68e-03    0.000 57
CPL   1.381    0.398    9999.4    0.0      7.98e-03 7.32e-03    0.000 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: 4.608000 sec.
T50 in the 50-300 keV band: 2.688000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    4.648   -0.280    4.368
T90     4.300   -0.068    4.232
T50     2.800    0.668    3.468
Peak    1.000   -0.280    0.720

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  173.9575 +15.0318 0.0136   33.1   28.1       0.4890    14.1  TRIG_00547420       
------------------------------------------
 
Foreground time interval of the image:
 -0.280   4.368 (delta_t =   4.648 [sec])
Background time interval of the image:
-239.072 -107.542 (delta_t = 131.530 [sec])
-106.072 -47.872 (delta_t =  58.200 [sec])
-47.072  -0.280 (delta_t =  46.792 [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   -0.280 sec. to    4.368 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.14874     ( -0.2066   0.201772 )
Norm@50keV  : 7.07110E-03    ( -0.000776511   0.000774165 )
------------------------------------------------------------
#Test statistic : Chi-Squared =          54.06 using 59 PHA bins.
# Reduced chi-squared =         0.9485 for     57 degrees of freedom 
# Null hypothesis probability =   5.859266e-01
 
Photon flux (15-150 keV)    in 4.648 sec: 0.824522 ( -0.094191  0.0944554 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.38471e-07 ( -4.05067e-08  4.07579e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.280 sec. to    4.368 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.14403     ( -0.528085   0.25698 )
Epeak [keV] : 1.00000E+04      (   )
Norm@50keV  : 7.10681E-03    (     )
------------------------------------------------------------
#Test statistic : Chi-Squared =          54.08 using 59 PHA bins.
# Reduced chi-squared =         0.9657 for     56 degrees of freedom 
# Null hypothesis probability =   5.479522e-01
 
Photon flux (15-150 keV)    in 4.648 sec: 0.824659 ( -0.094547  0.092407 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.48472e-07 ( -2.72126e-07  8.21488e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.280 sec. to    4.368 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.918369   ( 0.918369   0.918369 )
beta        : -1.14873    ( 1.14873   0.206553 )
Epeak [keV] : 54.0391      ( -54.0391 -54.0391 )
Norm@50keV   : 1.24878E-02    ( -0.00519267   1.05387 )
------------------------------------------------------------
#Test statistic : Chi-Squared =          54.06 using 59 PHA bins.
# Reduced chi-squared =         0.9830 for     55 degrees of freedom 
# Null hypothesis probability =   5.103863e-01
 
Photon flux (15-150 keV)    in 4.648 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]    : 20.6897  (-3.11464  3.95506)
R^2/D10^2   : 3.36023E-02  (-0.014459   0.0237264)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Test statistic : Chi-Squared =          75.65 using 59 PHA bins.
# Reduced chi-squared =          1.327 for     57 degrees of freedom 
# Null hypothesis probability =   4.975250e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.271e-08   2.773e-09
25- 50  6.473e-08   1.078e-08
50-150  2.062e-07   3.981e-08
15-150  2.837e-07   4.476e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 3.43222       (-0.384863     0.384826)
------------------------------------------------------------
#Test statistic : Chi-Squared =          66.41 using 59 PHA bins.
# Reduced chi-squared =          1.165 for     57 degrees of freedom 
# Null hypothesis probability =   1.843045e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.974e-08   2.224e-08
25- 50  7.644e-08   4.174e-08
50-150  1.676e-07   9.152e-08
15-150  2.838e-07   1.556e-07
Double BB
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.45410        (-2.65269      6.02922)
R1^2/D10^2  : 0.945482        (-0.800675      6.9436)
kT2 [keV]   : 32.2907        (-9.07059      135.15)
R2^2/D10^2  : 7.35251E-03    (-0.00678317   0.0136595)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.04 using 59 PHA bins.
#Test statistic : Chi-Squared =          56.04 using 59 PHA bins.
# Reduced chi-squared =          1.019 for     55 degrees of freedom 
# Null hypothesis probability =   4.354965e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.214e-08   1.630e-08
25- 50  6.501e-08   2.447e-08
50-150  2.448e-07   1.180e-07
15-150  3.420e-07   1.403e-07

Peak spectrum fit

Power-law model
Time interval is from   -0.280 sec. to    0.720 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.37214     ( -0.395212   0.395855 )
Norm@50keV  : 7.99479E-03    ( -0.00169669   0.001673 )
------------------------------------------------------------
#Test statistic : Chi-Squared =          50.40 using 59 PHA bins.
# Reduced chi-squared =         0.8842 for     57 degrees of freedom 
# Null hypothesis probability =   7.193276e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.967636 ( -0.201059  0.201592 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.77038e-08 ( -1.85891e-08  1.90333e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.280 sec. to    0.720 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.38097     ( -0.409308   0.387092 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 7.97549E-03    ( -0.00169593   0.0129497 )
------------------------------------------------------------
#Test statistic : Chi-Squared =          50.41 using 59 PHA bins.
# Reduced chi-squared =         0.9001 for     56 degrees of freedom 
# Null hypothesis probability =   6.856228e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.969325 ( -0.202917  0.199725 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.45964e-07 ( -7.07012e-08  1.04936e-07 ) ergs/cm2
 
Band function
Time interval is from   -0.280 sec. to    0.720 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.97253   ( -4.97253   -4.97253 )
beta        : -1.48007    ( -0.540408   0.446586 )
Epeak [keV] : 25.2211      ( -25.2211 7.86552 )
Norm@50keV   : 705.284    ( -143.985   4.49267e+06 )
------------------------------------------------------------
#Test statistic : Chi-Squared =          49.89 using 59 PHA bins.
# Reduced chi-squared =         0.9071 for     55 degrees of freedom 
# Null hypothesis probability =   6.696926e-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]    : 18.8323  (-6.34494  9.24588)
R^2/D10^2   : 4.95417E-02  (-0.0347592   0.14294)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Test statistic : Chi-Squared =          61.64 using 59 PHA bins.
# Reduced chi-squared =          1.081 for     57 degrees of freedom 
# Null hypothesis probability =   3.137412e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.465e-09   1.622e-09
25- 50  1.656e-08   8.274e-09
50-150  4.308e-08   2.259e-08
15-150  6.311e-08   2.824e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-96.1936      -199.363)
Norm        : 3.95151       (-0.818152     0.818173)
------------------------------------------------------------
#Test statistic : Chi-Squared =          51.67 using 59 PHA bins.
# Reduced chi-squared =         0.9064 for     57 degrees of freedom 
# Null hypothesis probability =   6.747405e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.840e-09   5.810e-09
25- 50  1.893e-08   1.121e-08
50-150  4.151e-08   2.415e-08
15-150  7.028e-08   4.145e-08
Double BB
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.69645        (-1.66496      1.87296)
R1^2/D10^2  : 2.51196        (-1.87852      7.71737)
kT2 [keV]   : 35.2212        (-13.0118      46.3923)
R2^2/D10^2  : 6.07616E-03    (-0.00521778   0.0180849)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.09 using 59 PHA bins.
#Test statistic : Chi-Squared =          47.09 using 59 PHA bins.
# Reduced chi-squared =         0.8562 for     55 degrees of freedom 
# Null hypothesis probability =   7.670379e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.108e-08   6.520e-09
25- 50  1.586e-08   9.055e-09
50-150  5.698e-08   3.164e-08
15-150  8.392e-08   4.579e-08
Plot creation:
Fri Feb  1 17:42:40 EST 2013