batgrbproduct Analysis for Trigger=533568

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Sep 14 03:13:20 EDT 2012
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger533568/GCN5_download_cron
======================================================================

  Trigger: 00533568      Segment: 000

  BAT Trigger Time: 369260311.552   [s; MET]
      Trigger Stop: 369260312.576   [s; MET]
               UTC: 2012-09-13T20:18:21.905720    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 146.436815162705   Dec: 26.9767800186672  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.27
     Image Trigger?:     NO
     Rate S/N Ratio:     11.6189500386223  [ if not an image trigger ]
     Image S/N Ratio:    7.27

  Flight Position:   [ source = BAT ]
    RA: 146.436815162705   Dec: 26.9767800186672  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 146.400442105042   Dec: 26.9590116249236  [deg; J2000]  
        { 09h 45m 36.1s , +26d 57' 32.4" }
         +/- 1.24919347865857 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.474844512344991 [arcmin] (formal 1-sigma fit error)
    SNR: 22.1348171879198
 
  Angular difference between Flight and Ground position is 2.218081 arcmin
 
  Partial Coding Fraction: 0.7109375    [ including projection effects ]

  Duration
     T90: 30.1439999938011 +/- 4.77485787614619
        Measured from: 0.436000108718872
                   to: 30.58000010252     [s; relative to TRIGTIME]
     T50: 5.33999991416931 +/- 13.5959247297632
        Measured from: 20.7800001502037
                   to: 26.120000064373     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 22.4480000138283     
                   to: 23.4480000138283     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.719999969005585     
                   to: 39.8000000119209     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.725768   0.652327   0.311561   0.034825
           0.039898   0.040769   0.036171   0.033287 [error]
 Peak      0.110767   0.097227   0.051354   0.010176
           0.007571   0.007741   0.006573   0.005474 [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 2.74e-07 2.42e-07 3.69e-07 8.69e-07 1.11e-06   erg/cm2
              Error 2.29e-08 2.00e-08 3.36e-08 1.01e-07 7.53e-08 1.39e-07   erg/cm2
Peak flux Power-law 1.05e+00 7.51e-01 3.53e-01 2.33e-01 2.27e+00 2.39e+00   ph/cm2/s
              Error 1.30e-01 6.47e-02 5.37e-02 6.71e-02 1.95e-01 2.06e-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 1.02e+00 7.84e-01 3.48e-01 1.34e-01 2.24e+00 2.29e+00   ph/cm2/s
              Error 1.42e-01 8.39e-02 5.87e-02 1.17e-01 2.02e-01 2.44e-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 2.32e+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    2.177    0.149    -      -           2.29e-03 2.27e-04   70.510 57
CPL   1.769    0.442      22.6    0.0      3.98e-03 0.00e+00   68.970 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.089    0.169    -      -           1.45e-02 1.65e-03   50.150 57
CPL   1.717    0.597      30.9   -3.1      2.40e-02 0.00e+00   49.070 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: 26.944000 sec.
T50 in the 50-300 keV band: 20.928000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   40.520   -0.720   39.800
T90    30.144    0.436   30.580
T50     5.340   20.780   26.120
Peak    1.000   22.448   23.448

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  146.4004 +26.9590 0.0087   20.6  -91.6       1.5637    22.1  TRIG_00533568       
------------------------------------------
 
Foreground time interval of the image:
 -0.720  30.149 (delta_t =  30.869 [sec])
Background time interval of the image:
-239.552  -0.720 (delta_t = 238.832 [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   -0.720 sec. to   39.800 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.17733     ( -0.146253   0.152739 )
Norm@50keV  : 2.28844E-03    ( -0.000228558   0.000224959 )
------------------------------------------------------------
# Chi-Squared =          70.51 using 59 PHA bins.
# Reduced chi-squared =          1.237 for     57 degrees of freedom 
# Null hypothesis probability =   1.077958e-01
 
Photon flux (15-150 keV)    in 40.52 sec: 0.374400 ( -0.026874  0.0268866 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.69154e-07 ( -7.46026e-08  7.60297e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.720 sec. to   39.800 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.76906     ( -0.647277   0.236919 )
Epeak [keV] : 22.6258      (   )
Norm@50keV  : 3.98042E-03    (     )
------------------------------------------------------------
# Chi-Squared =          68.97 using 59 PHA bins.
# Reduced chi-squared =          1.232 for     56 degrees of freedom 
# Null hypothesis probability =   1.142537e-01
 
Photon flux (15-150 keV)    in 40.52 sec: 0.366887 ( -0.028622  0.028647 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from   -0.720 sec. to   39.800 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.76904   ( 1.7614   0.470191 )
beta        : -10.00000    ( 3.71944e+11   3.71944e+11 )
Epeak [keV] : 22.6217      ( -20.8146 16.031 )
Norm@50keV   : 3.97961E-03    ( -0.000930338   0.00556329 )
------------------------------------------------------------
# Chi-Squared =          68.97 using 59 PHA bins.
# Reduced chi-squared =          1.254 for     55 degrees of freedom 
# Null hypothesis probability =   9.746377e-02
 
Photon flux (15-150 keV)    in 40.52 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]    : 8.89640  (-0.792338  0.872837)
R^2/D10^2   : 0.258354  (-0.0798829   0.116663)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =         109.14 using 59 PHA bins.
# Reduced chi-squared =         1.9147 for     57 degrees of freedom 
# Null hypothesis probability =   3.971690e-05
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.603e-07   2.071e-08
25- 50  3.346e-07   2.950e-08
50-150  1.232e-07   2.601e-08
15-150  6.182e-07   5.693e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 50.2284       (-9.62035      13.5082)
Norm        : 2.08491       (-0.262188     0.328418)
------------------------------------------------------------
# Chi-Squared =          70.35 using 59 PHA bins.
# Reduced chi-squared =          1.234 for     57 degrees of freedom 
# Null hypothesis probability =   1.102560e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.068e-07   2.121e-08
25- 50  2.975e-07   2.233e-08
50-150  2.900e-07   6.449e-08
15-150  7.943e-07   7.476e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.89164        (-0.998263      1.09422)
R1^2/D10^2  : 2.00083        (-1.07669      1.72844)
kT2 [keV]   : 16.1570        (-3.12095      4.9835)
R2^2/D10^2  : 1.78808E-02    (-0.0120161   0.0295505)
------------------------------------------------------------
# Chi-Squared =          68.48 using 59 PHA bins.
# Reduced chi-squared =          1.245 for     55 degrees of freedom 
# Null hypothesis probability =   1.046340e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.195e-07   7.523e-08
25- 50  2.772e-07   8.165e-08
50-150  3.073e-07   1.580e-07
15-150  8.040e-07   2.713e-07

Peak spectrum fit

Power-law model
Time interval is from   22.448 sec. to   23.448 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.08880     ( -0.164669   0.172656 )
Norm@50keV  : 1.45150E-02    ( -0.00166866   0.00163679 )
------------------------------------------------------------
# Chi-Squared =          50.15 using 59 PHA bins.
# Reduced chi-squared =         0.8798 for     57 degrees of freedom 
# Null hypothesis probability =   7.278647e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.27104 ( -0.194856  0.194902 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.34718e-07 ( -1.39075e-08  1.41791e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   22.448 sec. to   23.448 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.71745     ( -0.705115   0.488846 )
Epeak [keV] : 30.9398      ( -24.8091 -30.9397 )
Norm@50keV  : 2.39908E-02    (     )
------------------------------------------------------------
# Chi-Squared =          49.07 using 59 PHA bins.
# Reduced chi-squared =         0.8762 for     56 degrees of freedom 
# Null hypothesis probability =   7.325747e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.23711 ( -0.202  0.20203 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.45329e-07 ( -2.7926e-08  5.3735e-08 ) ergs/cm2
 
Band function
Time interval is from   22.448 sec. to   23.448 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.154468   ( 1.81731   0.67046 )
beta        : 10.00000    ( -1.97895e+15   -1.97895e+15 )
Epeak [keV] : 1.64802      (   )
Norm@50keV   : 7.10279E-19    (     )
------------------------------------------------------------
# Chi-Squared =         209.89 using 59 PHA bins.
# Reduced chi-squared =         3.8163 for     55 degrees of freedom 
# Null hypothesis probability =   6.068760e-20
 
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]    : 9.26887  (-1.03803  1.15389)
R^2/D10^2   : 1.36335  (-0.498364   0.806576)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          82.19 using 59 PHA bins.
# Reduced chi-squared =          1.442 for     57 degrees of freedom 
# Null hypothesis probability =   1.613469e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.314e-08   3.500e-09
25- 50  5.146e-08   5.385e-09
50-150  2.147e-08   5.225e-09
15-150  9.606e-08   1.082e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 57.3917       (-13.3085      19.4631)
Norm        : 12.0634       (-1.75486     2.01041)
------------------------------------------------------------
# Chi-Squared =          49.99 using 59 PHA bins.
# Reduced chi-squared =         0.8771 for     57 degrees of freedom 
# Null hypothesis probability =   7.330717e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.009e-08   3.570e-09
25- 50  4.516e-08   4.425e-09
50-150  4.950e-08   1.206e-08
15-150  1.248e-07   1.280e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.97277        (-0.981156      1.13015)
R1^2/D10^2  : 11.4272        (-6.24055      10.4999)
kT2 [keV]   : 17.3742        (-3.56787      5.78165)
R2^2/D10^2  : 8.72783E-02    (-0.0594491   0.138388)
------------------------------------------------------------
# Chi-Squared =          46.86 using 59 PHA bins.
# Reduced chi-squared =         0.8521 for     55 degrees of freedom 
# Null hypothesis probability =   7.743765e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.252e-08   1.154e-08
25- 50  4.152e-08   1.295e-08
50-150  5.278e-08   2.936e-08
15-150  1.268e-07   4.840e-08
Plot creation:
Fri Sep 14 09:08:32 EDT 2012