batgrbproduct Analysis for Trigger=507342

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Nov  9 09:32:20 EST 2011
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger507342/GCN5_download_cron
======================================================================

  Trigger: 00507342      Segment: 000

  BAT Trigger Time: 342500273.6   [s; MET]
      Trigger Stop: 342500277.696   [s; MET]
               UTC: 2011-11-09T02:57:46.046320    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 118.196067983082   Dec: -41.5986755526321  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.62
     Image Trigger?:     NO
     Rate S/N Ratio:     13.856406460551  [ if not an image trigger ]
     Image S/N Ratio:    8.62

  Flight Position:   [ source = BAT ]
    RA: 118.196067983082   Dec: -41.5986755526321  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 118.247736079766   Dec: -41.5883610563832  [deg; J2000]  
        { 07h 52m 59.5s , -41d 35' 18.1" }
         +/- 1.92549682762997 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.822324613027445 [arcmin] (formal 1-sigma fit error)
    SNR: 11.9296761737495
 
  Angular difference between Flight and Ground position is 2.399647 arcmin
 
  Partial Coding Fraction: 0.9140625    [ including projection effects ]

  Duration
     T90: 13 +/- 3.16227766016838
        Measured from: -5.59999990463257
                   to: 7.40000009536743     [s; relative to TRIGTIME]
     T50: 6 +/- 2.82842712474619
        Measured from: -3.59999990463257
                   to: 2.40000009536743     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.39999997615814     
                   to: 2.39999997615814     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -5.60000002384186     
                   to: 8.39999997615814     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.158021   0.196036   0.093795   0.007082
           0.021959   0.022118   0.019459   0.017838 [error]
 Peak      0.027623   0.024263   0.014827   0.003368
           0.006098   0.006115   0.005396   0.004870 [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 4.72e-08 6.99e-08 7.74e-08 1.61e-07 2.44e-07 3.56e-07   erg/cm2
              Error 9.22e-09 9.76e-09 1.82e-08 7.58e-08 4.23e-08 9.54e-08   erg/cm2
Peak flux Power-law 2.28e-01 1.81e-01 9.64e-02 7.48e-02 5.39e-01 5.80e-01   ph/cm2/s
              Error 8.09e-02 4.72e-02 4.28e-02 6.45e-02 1.40e-01 1.57e-01   ph/cm2/s
 
Fluence   Cutoff-PL 4.50e-08 7.65e-08 7.32e-08 4.50e-08 2.22e-07 2.40e-07   erg/cm2
              Error 1.01e-08 1.40e-08 2.25e-08 9.58e-08 4.99e-08 1.26e-07   erg/cm2
Peak flux Cutoff-PL 2.24e-01 1.89e-01 9.49e-02 4.33e-02 5.34e-01 5.51e-01   ph/cm2/s
              Error 8.55e-02 6.04e-02 5.09e-02 7.67e-02 1.42e-01 1.67e-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 2.24e-01 1.88e-01 5.60e-01 5.53e-01 0.00e+00 0.00e+00   ph/cm2/s
              Error 8.55e-02 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    1.854    0.257    -      -           1.89e-03 3.26e-04   50.330 57
CPL   1.130    1.230      48.3    0.0      5.09e-03 0.00e+00   49.090 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.907    0.499    -      -           3.75e-03 1.27e-03   78.280 57
CPL   1.569    1.589      50.7    0.0      6.00e-03 0.00e+00   78.160 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   14.000   -5.600    8.400
T90    13.000   -5.600    7.400
T50     6.000   -3.600    2.400
Peak    1.000    1.400    2.400

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  118.2477 -41.5884 0.0162   17.0   34.9       0.5020    11.9  TRIG_00507342       
------------------------------------------
 
Foreground time interval of the image:
 -5.600   8.400 (delta_t =  14.000 [sec])
Background time interval of the image:
-239.600 -109.180 (delta_t = 130.420 [sec])
-107.600  -5.600 (delta_t = 102.000 [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   -5.600 sec. to    8.400 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.85398     ( -0.249713   0.264211 )
Norm@50keV  : 1.89176E-03    ( -0.000330348   0.000321697 )
------------------------------------------------------------
# Chi-Squared =          50.33 using 59 PHA bins.
# Reduced chi-squared =         0.8830 for     57 degrees of freedom 
# Null hypothesis probability =   7.215242e-01
 
Photon flux (15-150 keV)    in 14 sec: 0.266338 ( -0.0368874  0.0368879 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.4351e-07 ( -4.15646e-08  4.30352e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -5.600 sec. to    8.400 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.12965     ( -1.42768   1.03234 )
Epeak [keV] : 48.2889      (   )
Norm@50keV  : 5.08846E-03    (     )
------------------------------------------------------------
# Chi-Squared =          49.09 using 59 PHA bins.
# Reduced chi-squared =         0.8765 for     56 degrees of freedom 
# Null hypothesis probability =   7.318956e-01
 
Photon flux (15-150 keV)    in 14 sec: 0.259042 ( -0.03716  0.038396 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.22298e-07 ( -4.66788e-08  5.31076e-08 ) ergs/cm2
 
Band function
Time interval is from   -5.600 sec. to    8.400 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 1.07266   ( -1.6774   -1.6774 )
beta        : -2.09606    ( -1.97005   0.402929 )
Epeak [keV] : 28.9246      ( -27.7644 47.2034 )
Norm@50keV   : 0.232804    ( -0.23482   156.198 )
------------------------------------------------------------
# Chi-Squared =          48.56 using 59 PHA bins.
# Reduced chi-squared =         0.8830 for     55 degrees of freedom 
# Null hypothesis probability =   7.174412e-01
 
Photon flux (15-150 keV)    in 14 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]    : 10.1172  (-1.5516  1.87483)
R^2/D10^2   : 0.121024  (-0.0572794   0.106104)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          56.65 using 59 PHA bins.
# Reduced chi-squared =         0.9938 for     57 degrees of freedom 
# Null hypothesis probability =   4.883171e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.546e-08   9.149e-09
25- 50  8.961e-08   1.713e-08
50-150  4.837e-08   1.819e-08
15-150  1.734e-07   3.665e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 79.5771       (-29.8378      69.0067)
Norm        : 1.25841       (-0.239597     0.306354)
------------------------------------------------------------
# Chi-Squared =          49.12 using 59 PHA bins.
# Reduced chi-squared =         0.8617 for     57 degrees of freedom 
# Null hypothesis probability =   7.617548e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.570e-08   8.967e-09
25- 50  7.513e-08   1.543e-08
50-150  1.057e-07   5.981e-08
15-150  2.265e-07   7.266e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.98387        (-2.69292      3.41778)
R1^2/D10^2  : 0.564342        (-0.416706      4.44712)
kT2 [keV]   : 18.3868        (-6.78574      -18.3868)
R2^2/D10^2  : 8.74609E-03    (-0.00872834   0.0538435)
------------------------------------------------------------
# Chi-Squared =          48.88 using 59 PHA bins.
# Reduced chi-squared =         0.8888 for     55 degrees of freedom 
# Null hypothesis probability =   7.060917e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.567e-08   2.561e-08
25- 50  7.579e-08   3.788e-08
50-150  9.875e-08   5.818e-08
15-150  2.202e-07   1.135e-07

Peak spectrum fit

Power-law model
Time interval is from    1.400 sec. to    2.400 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.90666     ( -0.46685   0.530875 )
Norm@50keV  : 3.74803E-03    ( -0.00130525   0.00123842 )
------------------------------------------------------------
# Chi-Squared =          78.28 using 59 PHA bins.
# Reduced chi-squared =          1.373 for     57 degrees of freedom 
# Null hypothesis probability =   3.226757e-02
 
Photon flux (15-150 keV)    in 1 sec: 0.539408 ( -0.139519  0.139548 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.44607e-08 ( -1.11073e-08  1.18641e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.400 sec. to    2.400 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.56884     ( -2.58205   0.596945 )
Epeak [keV] : 50.7137      (   )
Norm@50keV  : 5.99569E-03    (     )
------------------------------------------------------------
# Chi-Squared =          78.16 using 59 PHA bins.
# Reduced chi-squared =          1.396 for     56 degrees of freedom 
# Null hypothesis probability =   2.685350e-02
 
Photon flux (15-150 keV)    in 1 sec: 0.533685 ( -0.141465  0.14195 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.2978e-08 ( -1.22075e-08  1.3065e-08 ) ergs/cm2
 
Band function
Time interval is from    1.400 sec. to    2.400 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.936007   ( -1.58692   1.82306 )
beta        : 10.00000    ( -1.97895e+15   -1.97895e+15 )
Epeak [keV] : 2.70794      ( -2.70794 -2.70794 )
Norm@50keV   : 2.09185E-19    ( -2.09185e-19   -2.09185e-19 )
------------------------------------------------------------
# Chi-Squared =          93.64 using 59 PHA bins.
# Reduced chi-squared =          1.703 for     55 degrees of freedom 
# Null hypothesis probability =   8.974616e-04
 
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]    : 8.91839  (-2.62592  4.15031)
R^2/D10^2   : 0.389229  (-0.295869   1.0974)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          81.73 using 59 PHA bins.
# Reduced chi-squared =          1.434 for     57 degrees of freedom 
# Null hypothesis probability =   1.755048e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.999e-09   3.434e-09
25- 50  1.257e-08   7.497e-09
50-150  4.663e-09   3.451e-09
15-150  2.323e-08   1.265e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 73.0460       (-41.1091      -73.0456)
Norm        : 2.62585       (-0.825581     1.4908)
------------------------------------------------------------
# Chi-Squared =          78.21 using 59 PHA bins.
# Reduced chi-squared =          1.372 for     57 degrees of freedom 
# Null hypothesis probability =   3.264709e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.765e-09   3.277e-09
25- 50  1.089e-08   6.530e-09
50-150  1.443e-08   1.253e-08
15-150  3.208e-08   2.205e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.71932        (-2.71823      3.63468)
R1^2/D10^2  : 1.61510        (-1.351      18.9016)
kT2 [keV]   : 22.3533        (-19.2752      -22.2545)
R2^2/D10^2  : 8.66653E-03    (-0.00881702   0.176188)
------------------------------------------------------------
# Chi-Squared =          77.40 using 59 PHA bins.
# Reduced chi-squared =          1.407 for     55 degrees of freedom 
# Null hypothesis probability =   2.491642e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.327e-09   4.328e-09
25- 50  1.010e-08   5.905e-09
50-150  1.629e-08   1.119e-08
15-150  3.372e-08   1.875e-08
Plot creation:
Wed Nov  9 10:26:28 EST 2011