batgrbproduct Analysis for Trigger=535026

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Oct  2 10:11:30 EDT 2012
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger535026/GCN5_download_cron
======================================================================

  Trigger: 00535026      Segment: 000

  BAT Trigger Time: 370808592   [s; MET]
      Trigger Stop: 370808656   [s; MET]
               UTC: 2012-10-01T18:23:02.288260    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 276.032542704368   Dec: -5.66707146788107  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.79
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    9.79

  Flight Position:   [ source = BAT ]
    RA: 276.032542704368   Dec: -5.66707146788107  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 276.027945729489   Dec: -5.66657007655332  [deg; J2000]  
        { 18h 24m 06.7s , -05d 39' 59.7" }
         +/- 1.50842336459321 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.636967560978012 [arcmin] (formal 1-sigma fit error)
    SNR: 16.9077245758322
 
  Angular difference between Flight and Ground position is 0.276114 arcmin
 
  Partial Coding Fraction: 1    [ including projection effects ]

  Duration
     T90: 147.799999952316 +/- 20.5720781771927
        Measured from: -22.8319998979568
                   to: 124.968000054359     [s; relative to TRIGTIME]
     T50: 56.5359999537468 +/- 24.9824732801672
        Measured from: -1.74799990653992
                   to: 54.7880000472069     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 3.27200001478195     
                   to: 4.27200001478195     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -27.727999985218     
                   to: 144.944000005722     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.755142   0.974463   0.782228   0.212381
           0.084538   0.075673   0.063173   0.054159 [error]
 Peak      0.016930   0.021945   0.014839   0.004124
           0.007062   0.005898   0.004856   0.004224 [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 1.91e-07 3.89e-07 6.17e-07 2.17e-06 1.72e-06 3.37e-06   erg/cm2
              Error 3.04e-08 3.59e-08 6.12e-08 4.97e-07 1.52e-07 5.31e-07   erg/cm2
Peak flux Power-law 1.73e-01 1.55e-01 9.47e-02 8.80e-02 4.60e-01 5.11e-01   ph/cm2/s
              Error 8.48e-02 4.77e-02 3.94e-02 7.65e-02 1.40e-01 1.53e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.91e-07 3.90e-07 6.18e-07 2.15e-06 3.35e-06 0.00e+00   erg/cm2
              Error 3.38e-08 3.82e-08 6.44e-08 8.66e-07 8.83e-07 0.00e+00   erg/cm2
Peak flux Cutoff-PL 1.61e-01 1.62e-01 9.70e-02 5.05e-02 4.49e-01 4.70e-01   ph/cm2/s
              Error 8.43e-02 5.59e-02 4.38e-02 8.98e-02 1.46e-01 1.75e-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 4.64e-01 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    1.335    0.150    -      -           1.01e-03 8.14e-05   86.590 57
CPL   1.331    0.370    9991.4    0.0      1.02e-03 5.92e-04   86.590 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.707    0.562    -      -           3.46e-03 1.12e-03   47.520 57
CPL   1.232    1.817      76.8    0.0      6.13e-03 8.42e-02   47.330 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: 191.616000 sec.
T50 in the 50-300 keV band: 87.872000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  172.672  -27.728  144.944
T90   147.800  -22.832  124.968
T50    56.536   -1.748   54.788
Peak    1.000    3.272    4.272

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  276.0279  -5.6666 0.0114   12.3   20.1       2.1369    16.9  TRIG_00535026       
------------------------------------------
 
Foreground time interval of the image:
-27.728  72.301 (delta_t = 100.029 [sec])
Background time interval of the image:
-239.000 -27.728 (delta_t = 211.272 [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  -27.728 sec. to  144.944 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.33499     ( -0.151088   0.149382 )
Norm@50keV  : 1.01342E-03    ( -8.13692e-05   8.13553e-05 )
------------------------------------------------------------
# Chi-Squared =          86.59 using 59 PHA bins.
# Reduced chi-squared =          1.519 for     57 degrees of freedom 
# Null hypothesis probability =   6.961771e-03
 
Photon flux (15-150 keV)    in 172.7 sec: 0.121718 ( -0.0102995  0.0103505 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.71519e-06 ( -1.50998e-07  1.52041e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -27.728 sec. to  144.944 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.33144     ( -0.522234   0.21842 )
Epeak [keV] : 9991.41      (   )
Norm@50keV  : 1.01744E-03    ( -0.000292926   0.000890893 )
------------------------------------------------------------
# Chi-Squared =          86.59 using 59 PHA bins.
# Reduced chi-squared =          1.546 for     56 degrees of freedom 
# Null hypothesis probability =   5.432459e-03
 
Photon flux (15-150 keV)    in 172.7 sec: 0.121692 ( -0.010306  0.010316 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.34558e-06 ( -1.19488e-06  5.71171e-07 ) ergs/cm2
 
Band function
Time interval is from  -27.728 sec. to  144.944 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.88943   ( -19.2536   -19.2536 )
beta        : -1.36577    ( -0.163016   0.160084 )
Epeak [keV] : 22.7642      ( -22.7599 5.72766 )
Norm@50keV   : 133.512    ( -38.198   33.3152 )
------------------------------------------------------------
# Chi-Squared =          85.90 using 59 PHA bins.
# Reduced chi-squared =          1.562 for     55 degrees of freedom 
# Null hypothesis probability =   4.842517e-03
 
Photon flux (15-150 keV)    in 172.7 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]    : 17.4450  (  )
R^2/D10^2   : 8.22588E-03  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =         122.21 using 59 PHA bins.
# Reduced chi-squared =         2.1440 for     57 degrees of freedom 
# Null hypothesis probability =   1.179316e-06
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.740e-08   1.608e-08
25- 50  3.947e-07   4.870e-08
50-150  8.644e-07   1.490e-07
15-150  1.346e-06   1.380e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.996       (      )
Norm        : 0.507256       (-0.507256     -0.507256)
------------------------------------------------------------
# Chi-Squared =          93.39 using 59 PHA bins.
# Reduced chi-squared =          1.638 for     57 degrees of freedom 
# Null hypothesis probability =   1.688438e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.182e-07   1.149e-07
25- 50  4.197e-07   2.202e-07
50-150  9.204e-07   4.845e-07
15-150  1.558e-06   8.136e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.32921        (-2.57269      1.48149)
R1^2/D10^2  : 6.76404E-02        (-0.0391921      0.102464)
kT2 [keV]   : 35.3131        (-10.9493      43.1311)
R2^2/D10^2  : 6.54745E-04    (-0.000565298   0.00162359)
------------------------------------------------------------
# Chi-Squared =          88.24 using 59 PHA bins.
# Reduced chi-squared =          1.604 for     55 degrees of freedom 
# Null hypothesis probability =   2.966269e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.706e-07   5.445e-08
25- 50  4.128e-07   1.429e-07
50-150  1.141e-06   5.594e-07
15-150  1.725e-06   6.546e-07

Peak spectrum fit

Power-law model
Time interval is from    3.272 sec. to    4.272 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.70666     ( -0.545894   0.578642 )
Norm@50keV  : 3.45579E-03    ( -0.00114519   0.00109985 )
------------------------------------------------------------
# Chi-Squared =          47.52 using 59 PHA bins.
# Reduced chi-squared =         0.8337 for     57 degrees of freedom 
# Null hypothesis probability =   8.103292e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.460042 ( -0.139688  0.140698 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.198e-08 ( -1.06115e-08  1.10549e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    3.272 sec. to    4.272 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.23182     ( -2.71028   0.924551 )
Epeak [keV] : 76.7632      ( -76.7595 -76.7595 )
Norm@50keV  : 6.13406E-03    ( -0.00613441   0.162354 )
------------------------------------------------------------
# Chi-Squared =          47.33 using 59 PHA bins.
# Reduced chi-squared =         0.8453 for     56 degrees of freedom 
# Null hypothesis probability =   7.885688e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.449270 ( -0.145898  0.146007 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.74872e-08 ( -1.78366e-08  4.51641e-08 ) ergs/cm2
 
Band function
Time interval is from    3.272 sec. to    4.272 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.23204   ( 1.21748   2.7029 )
beta        : -10.00000    ( 3.293e+11   3.293e+11 )
Epeak [keV] : 76.7682      ( -75.091 -76.747 )
Norm@50keV   : 6.13152E-03    ( -0.00377643   0.16313 )
------------------------------------------------------------
# Chi-Squared =          47.33 using 59 PHA bins.
# Reduced chi-squared =         0.8606 for     55 degrees of freedom 
# Null hypothesis probability =   7.591406e-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]    : 13.2251  (-4.80104  7.62532)
R^2/D10^2   : 7.65125E-02  (-0.0756385   0.325525)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          50.15 using 59 PHA bins.
# Reduced chi-squared =         0.8798 for     57 degrees of freedom 
# Null hypothesis probability =   7.279079e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.837e-09   1.760e-09
25- 50  9.952e-09   6.090e-09
50-150  1.112e-08   8.130e-09
15-150  2.390e-08   1.548e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 128.439       (      )
Norm        : 1.92937       (-0.63071     1.07585)
------------------------------------------------------------
# Chi-Squared =          47.34 using 59 PHA bins.
# Reduced chi-squared =         0.8305 for     57 degrees of freedom 
# Null hypothesis probability =   8.154338e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.579e-09   2.684e-09
25- 50  8.771e-09   5.225e-09
50-150  1.901e-08   1.114e-08
15-150  3.236e-08   1.915e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.12854        (-4.88244      6.93487)
R1^2/D10^2  : 0.843319        (-0.788409      1796.57)
kT2 [keV]   : 22.6036        (-20.6612      -22.6423)
R2^2/D10^2  : 8.72654E-03    (-0.00865655   0.0960317)
------------------------------------------------------------
# Chi-Squared =          46.93 using 59 PHA bins.
# Reduced chi-squared =         0.8533 for     55 degrees of freedom 
# Null hypothesis probability =   7.721226e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.151e-09   3.316e-09
25- 50  8.904e-09   4.917e-09
50-150  1.716e-08   1.260e-08
15-150  3.122e-08   1.632e-08
Plot creation:
Tue Oct  2 10:30:05 EDT 2012