batgrbproduct Analysis for Trigger=506961

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Nov  4 14:43:06 EDT 2011
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger506961/GCN5_download_cron
======================================================================

  Trigger: 00506961      Segment: 000

  BAT Trigger Time: 342068120   [s; MET]
      Trigger Stop: 342069016   [s; MET]
               UTC: 2011-11-04T02:55:12.463460    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 272.114270197828   Dec: -36.9908873128422  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    7.43
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    7.43

  Flight Position:   [ source = BAT ]
    RA: 272.114270197828   Dec: -36.9908873128422  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 272.049897270893   Dec: -37.0078476223782  [deg; J2000]  
        { 18h 08m 12.0s , -37d 00' 28.3" }
         +/- 3.66808674121075 [arcmin] (estimated 90% radius based on SNR)
         +/- 3.42507804474928 [arcmin] (formal 1-sigma fit error)
    SNR: 4.75090228840569
 
  Angular difference between Flight and Ground position is 3.248176 arcmin
 
  Partial Coding Fraction: 0.9921875    [ including projection effects ]

  Duration
     T90: 896 +/- 
        Measured from: 0
                   to: 896     [s; relative to TRIGTIME]
     T50: 896 +/- 
        Measured from: 0
                   to: 896     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 896 second)
        Measured from: 0     
                   to: 896     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 896     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     2.061001   1.670519   0.310486   0.010191
           0.181938   0.169425   0.142778   0.122394 [error]
 Peak      2.061001   1.670519   0.310486   0.010191
           0.181938   0.169425   0.142778   0.122394 [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 6.53e-07 6.18e-07 4.06e-07 4.15e-07 1.85e-06 2.09e-06   erg/cm2
              Error 9.43e-08 8.45e-08 1.15e-07 2.18e-07 2.69e-07 3.90e-07   erg/cm2
Peak flux Power-law 2.41e-02 1.27e-02 4.18e-03 1.77e-03 4.19e-02 4.27e-02   ph/cm2/s
              Error 3.56e-03 1.67e-03 1.14e-03 8.73e-04 4.86e-03 4.97e-03   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 2.27e-02 1.42e-02 3.31e-03 4.04e-02 4.05e-02 0.00e+00   ph/cm2/s
              Error 3.95e-03 2.29e-03 1.50e-03 5.00e-03 3.84e-03 0.00e+00   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    2.604    0.270    -      -           2.00e-04 4.13e-05   51.170 57
CPL   1.348    1.159      17.7    0.0      1.30e-03 0.00e+00   48.370 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.604    0.270    -      -           2.00e-04 4.13e-05   51.170 57
CPL   1.348    1.159      17.7    0.0      1.30e-03 0.00e+00   48.370 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  896.000    0.000  896.000
T90   896.000    0.000  896.000
T50   896.000    0.000  896.000
Peak  896.000    0.000  896.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  272.0499 -37.0078 0.0403   18.7 -154.5       2.9126     4.8  TRIG_00506961       
------------------------------------------
 
Foreground time interval of the image:
  0.000 896.000 (delta_t = 896.000 [sec])
Background time interval of the image:

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    0.000 sec. to  896.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.60448     ( -0.256618   0.2842 )
Norm@50keV  : 1.99960E-04    ( -4.12579e-05   4.1335e-05 )
------------------------------------------------------------
# Chi-Squared =          51.17 using 59 PHA bins.
# Reduced chi-squared =         0.8977 for     57 degrees of freedom 
# Null hypothesis probability =   6.925157e-01
 
Photon flux (15-150 keV)    in 896 sec: 4.19368E-02 ( -0.00486167  0.00486167 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.84674e-06 ( -2.63145e-07  2.7422e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to  896.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.34816     ( -1.66946   0.648348 )
Epeak [keV] : 17.7338      (   )
Norm@50keV  : 1.29578E-03    (     )
------------------------------------------------------------
# Chi-Squared =          48.37 using 59 PHA bins.
# Reduced chi-squared =         0.8638 for     56 degrees of freedom 
# Null hypothesis probability =   7.557300e-01
 
Photon flux (15-150 keV)    in 896 sec: 4.04458E-02 ( -0.0049753  0.0050236 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to  896.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.35418   ( -0.741701   3.89664 )
beta        : -9.37166    ( 10   20 )
Epeak [keV] : 17.6655      ( -4.18798 10.6854 )
Norm@50keV   : 1.28310E-03    ( -0.00128319   0.00288047 )
------------------------------------------------------------
# Chi-Squared =          48.37 using 59 PHA bins.
# Reduced chi-squared =         0.8795 for     55 degrees of freedom 
# Null hypothesis probability =   7.240912e-01
 
Photon flux (15-150 keV)    in 896 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]    : 7.13239  (-0.883755  0.977084)
R^2/D10^2   : 7.20520E-02  (-0.030061   0.054217)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          55.73 using 59 PHA bins.
# Reduced chi-squared =         0.9777 for     57 degrees of freedom 
# Null hypothesis probability =   5.228462e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.377e-07   1.081e-07
25- 50  7.634e-07   1.391e-07
50-150  1.353e-07   5.799e-08
15-150  1.436e-06   2.361e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 28.2732       (-6.68165      9.49618)
Norm        : 0.352852       (-0.0827295     0.115897)
------------------------------------------------------------
# Chi-Squared =          48.39 using 59 PHA bins.
# Reduced chi-squared =         0.8490 for     57 degrees of freedom 
# Null hypothesis probability =   7.845108e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.234e-07   9.762e-08
25- 50  6.889e-07   1.094e-07
50-150  3.485e-07   1.516e-07
15-150  1.661e-06   2.679e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.03991        (-2.03187      2.16381)
R1^2/D10^2  : 1.76872        (-1.59741      4541.71)
kT2 [keV]   : 9.18286        (-1.93613      4.07489)
R2^2/D10^2  : 2.02710E-02    (-0.0173459   0.0422724)
------------------------------------------------------------
# Chi-Squared =          47.52 using 59 PHA bins.
# Reduced chi-squared =         0.8641 for     55 degrees of freedom 
# Null hypothesis probability =   7.528828e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.227e-07   3.212e-07
25- 50  7.095e-07   3.864e-07
50-150  2.679e-07   1.692e-07
15-150  1.600e-06   7.974e-07

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to  896.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.60448     ( -0.256618   0.2842 )
Norm@50keV  : 1.99960E-04    ( -4.12579e-05   4.1335e-05 )
------------------------------------------------------------
# Chi-Squared =          51.17 using 59 PHA bins.
# Reduced chi-squared =         0.8977 for     57 degrees of freedom 
# Null hypothesis probability =   6.925157e-01
 
Photon flux (15-150 keV)    in 896 sec: 4.19368E-02 ( -0.00486167  0.00486167 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.84674e-06 ( -2.63145e-07  2.7422e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to  896.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.34816     ( -1.66946   0.648348 )
Epeak [keV] : 17.7338      (   )
Norm@50keV  : 1.29578E-03    (     )
------------------------------------------------------------
# Chi-Squared =          48.37 using 59 PHA bins.
# Reduced chi-squared =         0.8638 for     56 degrees of freedom 
# Null hypothesis probability =   7.557300e-01
 
Photon flux (15-150 keV)    in 896 sec: 4.04458E-02 ( -0.0049753  0.0050236 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to  896.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.35418   ( -0.741701   3.89664 )
beta        : -9.37166    ( 10   20 )
Epeak [keV] : 17.6655      ( -4.18798 10.6854 )
Norm@50keV   : 1.28310E-03    ( -0.00128319   0.00288047 )
------------------------------------------------------------
# Chi-Squared =          48.37 using 59 PHA bins.
# Reduced chi-squared =         0.8795 for     55 degrees of freedom 
# Null hypothesis probability =   7.240912e-01
 
Photon flux (15-150 keV)    in 896 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]    : 7.13239  (-0.883755  0.977084)
R^2/D10^2   : 7.20520E-02  (-0.030061   0.054217)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          55.73 using 59 PHA bins.
# Reduced chi-squared =         0.9777 for     57 degrees of freedom 
# Null hypothesis probability =   5.228462e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.377e-07   1.144e-07
25- 50  7.634e-07   1.427e-07
50-150  1.353e-07   5.669e-08
15-150  1.436e-06   2.451e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 28.2732       (-6.68165      9.49618)
Norm        : 0.352852       (-0.0827295     0.115897)
------------------------------------------------------------
# Chi-Squared =          48.39 using 59 PHA bins.
# Reduced chi-squared =         0.8490 for     57 degrees of freedom 
# Null hypothesis probability =   7.845108e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.234e-07   1.066e-07
25- 50  6.889e-07   1.094e-07
50-150  3.485e-07   1.525e-07
15-150  1.661e-06   2.764e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.03991        (-2.03187      2.16381)
R1^2/D10^2  : 1.76872        (-1.59741      4541.71)
kT2 [keV]   : 9.18286        (-1.93613      4.07489)
R2^2/D10^2  : 2.02710E-02    (-0.0173459   0.0422724)
------------------------------------------------------------
# Chi-Squared =          47.52 using 59 PHA bins.
# Reduced chi-squared =         0.8641 for     55 degrees of freedom 
# Null hypothesis probability =   7.528828e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.227e-07   3.235e-07
25- 50  7.095e-07   3.812e-07
50-150  2.679e-07   1.622e-07
15-150  1.600e-06   8.248e-07
Plot creation:
Fri Nov  4 15:04:19 EDT 2011