batgrbproduct Analysis for Trigger=509543

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Dec 12 16:14:08 EST 2011
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger509543/GCN5_download_cron
======================================================================

  Trigger: 00509543      Segment: 000

  BAT Trigger Time: 345374594.752   [s; MET]
      Trigger Stop: 345374602.944   [s; MET]
               UTC: 2011-12-12T09:23:07.084300    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 310.404448660982   Dec: -68.6171052622876  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.09
     Image Trigger?:     NO
     Rate S/N Ratio:     8.48528137423857  [ if not an image trigger ]
     Image S/N Ratio:    8.09

  Flight Position:   [ source = BAT ]
    RA: 310.404448660982   Dec: -68.6171052622876  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 310.441986523505   Dec: -68.5845812230042  [deg; J2000]  
        { 20h 41m 46.1s , -68d 35' 04.5" }
         +/- 1.75176756418004 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.794818192565792 [arcmin] (formal 1-sigma fit error)
    SNR: 13.6550984669123
 
  Angular difference between Flight and Ground position is 2.117412 arcmin
 
  Partial Coding Fraction: 0.359375    [ including projection effects ]

  Duration
     T90: 59.8400000333786 +/- 9.90246842182212
        Measured from: -1.7519998550415
                   to: 58.0880001783371     [s; relative to TRIGTIME]
     T50: 27.8560000658035 +/- 7.89317475157815
        Measured from: 6.9520001411438
                   to: 34.8080002069473     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 4.76399999856949     
                   to: 5.76399999856949     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -5.76799994707108     
                   to: 62.744000017643     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.583429   0.903486   0.603298   0.111671
           0.081426   0.081749   0.070921   0.060638 [error]
 Peak      0.031678   0.038937   0.025113   0.020851
           0.010421   0.010272   0.008926   0.007818 [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 2.25e-07 3.74e-07 4.71e-07 1.19e-06 1.40e-06 2.25e-06   erg/cm2
              Error 3.85e-08 4.04e-08 6.97e-08 3.66e-07 1.67e-07 4.26e-07   erg/cm2
Peak flux Power-law 2.97e-01 2.76e-01 1.77e-01 1.75e-01 8.23e-01 9.26e-01   ph/cm2/s
              Error 1.55e-01 8.95e-02 7.55e-02 1.61e-01 2.59e-01 2.88e-01   ph/cm2/s
 
Fluence   Cutoff-PL 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 Cutoff-PL 2.98e-01 2.76e-01 1.77e-01 1.74e-01 8.23e-01 9.26e-01   ph/cm2/s
              Error 1.18e-01 9.41e-02 7.55e-02 1.89e-01 2.55e-01 3.05e-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    1.665    0.185    -      -           2.20e-03 2.47e-04   48.480 57
CPL   1.040    0.823      73.0  -27.1      4.69e-03 6.24e-03   46.610 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.638    0.601    -      -           6.33e-03 2.11e-03   58.160 57
CPL   2.168    0.000      65.0    0.0      3.27e-03 0.00e+00   58.140 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   68.512   -5.768   62.744
T90    59.840   -1.752   58.088
T50    27.856    6.952   34.808
Peak    1.000    4.764    5.764

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  310.4420 -68.5846 0.0141   36.2  -58.9       2.0863    13.7  TRIG_00509543       
------------------------------------------
 
Foreground time interval of the image:
 -5.768  46.849 (delta_t =  52.617 [sec])
Background time interval of the image:
-239.752  -5.768 (delta_t = 233.984 [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   -5.768 sec. to   62.744 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.66515     ( -0.183005   0.187137 )
Norm@50keV  : 2.20076E-03    ( -0.00024809   0.000245574 )
------------------------------------------------------------
# Chi-Squared =          48.48 using 59 PHA bins.
# Reduced chi-squared =         0.8506 for     57 degrees of freedom 
# Null hypothesis probability =   7.817027e-01
 
Photon flux (15-150 keV)    in 68.51 sec: 0.288817 ( -0.0312247  0.0312817 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.40019e-06 ( -1.65663e-07  1.67445e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -5.768 sec. to   62.744 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.03974     ( -0.941827   0.703503 )
Epeak [keV] : 73.0200      ( -18.7533 -73.0206 )
Norm@50keV  : 4.69054E-03    ( -0.0026242   0.00985001 )
------------------------------------------------------------
# Chi-Squared =          46.61 using 59 PHA bins.
# Reduced chi-squared =         0.8323 for     56 degrees of freedom 
# Null hypothesis probability =   8.102172e-01
 
Photon flux (15-150 keV)    in 68.51 sec: 0.281075 ( -0.032818  0.032691 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from   -5.768 sec. to   62.744 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.687706   ( 0.687031   5.66614 )
beta        : -2.08660    ( 2.0769   0.486157 )
Epeak [keV] : 57.9267      ( -57.3639 292.911 )
Norm@50keV   : 7.63481E-03    ( -0.00773198   46.2556 )
------------------------------------------------------------
# Chi-Squared =          46.19 using 59 PHA bins.
# Reduced chi-squared =         0.8399 for     55 degrees of freedom 
# Null hypothesis probability =   7.952202e-01
 
Photon flux (15-150 keV)    in 68.51 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]    : 13.0016  (-1.54544  1.80038)
R^2/D10^2   : 5.32658E-02  (-0.0201847   0.0314842)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          60.56 using 59 PHA bins.
# Reduced chi-squared =          1.062 for     57 degrees of freedom 
# Null hypothesis probability =   3.487506e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.308e-07   2.692e-08
25- 50  4.507e-07   6.351e-08
50-150  4.817e-07   1.066e-07
15-150  1.063e-06   1.480e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 138.074       (-11.3571      -100.69)
Norm        : 1.20928       (-0.149313     0.179955)
------------------------------------------------------------
# Chi-Squared =          46.82 using 59 PHA bins.
# Reduced chi-squared =         0.8214 for     57 degrees of freedom 
# Null hypothesis probability =   8.298611e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.141e-07   3.086e-08
25- 50  3.920e-07   4.611e-08
50-150  7.469e-07   1.274e-07
15-150  1.353e-06   1.535e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.30668        (-3.40118      2.94127)
R1^2/D10^2  : 0.187485        (-0.109028      0.344026)
kT2 [keV]   : 27.3050        (-10.9577      128.564)
R2^2/D10^2  : 2.35502E-03    (-0.00224521   0.0163512)
------------------------------------------------------------
# Chi-Squared =          47.14 using 59 PHA bins.
# Reduced chi-squared =         0.8570 for     55 degrees of freedom 
# Null hypothesis probability =   7.655533e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.845e-07   8.326e-08
25- 50  4.250e-07   2.016e-07
50-150  7.311e-07   4.016e-07
15-150  1.341e-06   6.312e-07

Peak spectrum fit

Power-law model
Time interval is from    4.764 sec. to    5.764 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.63754     ( -0.594778   0.606286 )
Norm@50keV  : 6.32717E-03    ( -0.00215943   0.0020554 )
------------------------------------------------------------
# Chi-Squared =          58.16 using 59 PHA bins.
# Reduced chi-squared =          1.020 for     57 degrees of freedom 
# Null hypothesis probability =   4.323067e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.822810 ( -0.2589  0.25971 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.89205e-08 ( -2.04757e-08  2.11958e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    4.764 sec. to    5.764 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.16812     (     )
Epeak [keV] : 64.9838      (   )
Norm@50keV  : 3.26943E-03    (     )
------------------------------------------------------------
# Chi-Squared =          58.14 using 59 PHA bins.
# Reduced chi-squared =          1.038 for     56 degrees of freedom 
# Null hypothesis probability =   3.965683e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.822860 ( -0.256128  0.25341 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.9041e-08 ( -2.10477e-08  2.11047e-08 ) ergs/cm2
 
Band function
Time interval is from    4.764 sec. to    5.764 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.82844   ( -13.1025   -13.1025 )
beta        : -1.84539    ( -1.02989   0.722244 )
Epeak [keV] : 25.8991      ( -25.9282 11.6879 )
Norm@50keV   : 481.404    ( -476.896   370.386 )
------------------------------------------------------------
# Chi-Squared =          57.75 using 59 PHA bins.
# Reduced chi-squared =          1.050 for     55 degrees of freedom 
# Null hypothesis probability =   3.739477e-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]    : 10.2020  (-3.57641  9.20073)
R^2/D10^2   : 0.349544  (-0.345868   1.47021)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          62.64 using 59 PHA bins.
# Reduced chi-squared =          1.099 for     57 degrees of freedom 
# Null hypothesis probability =   2.831601e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.458e-09   4.791e-09
25- 50  1.907e-08   1.189e-08
50-150  1.054e-08   7.980e-09
15-150  3.707e-08   2.294e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 170.930       (-102.036      -102.036)
Norm        : 3.33301       (-1.06021     1.93956)
------------------------------------------------------------
# Chi-Squared =          58.55 using 59 PHA bins.
# Reduced chi-squared =          1.027 for     57 degrees of freedom 
# Null hypothesis probability =   4.182280e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.454e-09   3.553e-09
25- 50  1.595e-08   5.637e-09
50-150  3.315e-08   1.081e-08
15-150  5.756e-08   1.827e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.34579        (-2.98992      4.12437)
R1^2/D10^2  : 1.04908        (-0.863379      3.71523)
kT2 [keV]   : 71.1086        (-54.9456      -71.8703)
R2^2/D10^2  : 6.79506E-04    (-0.000617089   0.0039013)
------------------------------------------------------------
# Chi-Squared =          56.54 using 59 PHA bins.
# Reduced chi-squared =          1.028 for     55 degrees of freedom 
# Null hypothesis probability =   4.172456e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.816e-09   6.195e-09
25- 50  1.649e-08   9.745e-09
50-150  3.816e-08   2.119e-08
15-150  6.446e-08   3.139e-08
Plot creation:
Mon Dec 12 16:52:17 EST 2011