batgrbproduct Analysis for Trigger=535764

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Oct 12 13:46:30 EDT 2012
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger535764/GCN5_download_cron
======================================================================

  Trigger: 00535764      Segment: 000

  BAT Trigger Time: 371646940.16   [s; MET]
      Trigger Stop: 371646942.208   [s; MET]
               UTC: 2012-10-11T11:15:30.412760    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 260.200124470458   Dec: 41.1367639177282  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.18
     Image Trigger?:     NO
     Rate S/N Ratio:     13.1529464379659  [ if not an image trigger ]
     Image S/N Ratio:    7.18

  Flight Position:   [ source = BAT ]
    RA: 260.200124470458   Dec: 41.1367639177282  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 260.200034347754   Dec: 41.1190074274635  [deg; J2000]  
        { 17h 20m 48.0s , +41d 07' 08.4" }
         +/- 1.67958178627011 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.649412120188298 [arcmin] (formal 1-sigma fit error)
    SNR: 14.5011499111725
 
  Angular difference between Flight and Ground position is 1.065397 arcmin
 
  Partial Coding Fraction: 0.328125    [ including projection effects ]

  Duration
     T90: 97.2319999337196 +/- 17.1782137718252
        Measured from: -4.5599998831749
                   to: 92.6720000505447     [s; relative to TRIGTIME]
     T50: 43.5279999375343 +/- 11.5297139844277
        Measured from: 1.56800007820129
                   to: 45.0960000157356     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.648000001907349     
                   to: 0.351999998092651     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -7.45200002193451     
                   to: 109.599999964237     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.503189   1.174498   1.144038   0.287532
           0.094218   0.093295   0.081650   0.069715 [error]
 Peak      0.027354   0.037381   0.061409   0.031776
           0.012169   0.012250   0.011441   0.009537 [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 2.46e-07 5.21e-07 8.68e-07 3.29e-06 2.39e-06 4.93e-06   erg/cm2
              Error 4.08e-08 5.26e-08 7.75e-08 6.53e-07 2.01e-07 6.90e-07   erg/cm2
Peak flux Power-law 2.31e-01 3.36e-01 3.65e-01 7.38e-01 1.16e+00 1.67e+00   ph/cm2/s
              Error 1.43e-01 1.28e-01 8.68e-02 3.92e-01 3.24e-01 4.13e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.97e-07 5.47e-07 9.49e-07 1.35e-06 3.04e-06 0.00e+00   erg/cm2
              Error 5.07e-08 5.98e-08 9.79e-08 8.49e-07 8.53e-07 0.00e+00   erg/cm2
Peak flux Cutoff-PL 2.20e-01 3.35e-01 3.71e-01 6.68e-01 1.15e+00 1.59e+00   ph/cm2/s
              Error 1.70e-01 1.36e-01 1.09e-01 5.94e-01 3.34e-01 6.53e-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 1.39e+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    1.264    0.139    -      -           2.05e-03 1.70e-04   43.350 57
CPL   0.407    0.664     107.2   71.0      4.88e-03 3.53e-03   37.390 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.884    0.469    -      -           1.01e-02 2.85e-03   58.340 57
CPL   0.754    0.899     655.4    0.0      1.13e-02 3.31e-02   58.330 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: 50.496000 sec.
T50 in the 50-300 keV band: 25.664000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  117.052   -7.452  109.600
T90    97.232   -4.560   92.672
T50    43.528    1.568   45.096
Peak    1.000   -0.648    0.352

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  260.2000 +41.1190 0.0133   47.6  -18.0       1.9718    14.5  TRIG_00535764       
------------------------------------------
 
Foreground time interval of the image:
 -7.452  21.941 (delta_t =  29.393 [sec])
Background time interval of the image:
-239.160  -7.452 (delta_t = 231.708 [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   -7.452 sec. to  109.600 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.26407     ( -0.14047   0.137632 )
Norm@50keV  : 2.04774E-03    ( -0.000170085   0.000169639 )
------------------------------------------------------------
# Chi-Squared =          43.35 using 59 PHA bins.
# Reduced chi-squared =         0.7604 for     57 degrees of freedom 
# Null hypothesis probability =   9.089583e-01
 
Photon flux (15-150 keV)    in 117.1 sec: 0.242758 ( -0.0218423  0.0219889 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.39103e-06 ( -2.00454e-07  2.00775e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -7.452 sec. to  109.600 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.407212     ( -0.713803   0.613389 )
Epeak [keV] : 107.238      ( -24.962 117.016 )
Norm@50keV  : 4.87940E-03    ( -0.00221783   0.00483852 )
------------------------------------------------------------
# Chi-Squared =          37.39 using 59 PHA bins.
# Reduced chi-squared =         0.6676 for     56 degrees of freedom 
# Null hypothesis probability =   9.736905e-01
 
Photon flux (15-150 keV)    in 117.1 sec: 0.232417 ( -0.022868  0.023058 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.03846e-06 ( -5.91519e-07  1.11356e-06 ) ergs/cm2
 
Band function
Time interval is from   -7.452 sec. to  109.600 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.408802   ( -0.602823   0.386526 )
beta        : -2.10875    ( 2.21181   3.21168 )
Epeak [keV] : 106.766      ( -68.5948 115.663 )
Norm@50keV   : 4.88245E-03    ( -0.00205181   0.104219 )
------------------------------------------------------------
# Chi-Squared =          37.35 using 59 PHA bins.
# Reduced chi-squared =         0.6790 for     55 degrees of freedom 
# Null hypothesis probability =   9.672215e-01
 
Photon flux (15-150 keV)    in 117.1 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]    : 19.5219  (-1.80504  2.06297)
R^2/D10^2   : 1.21024E-02  (-0.0035542   0.00484139)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          51.79 using 59 PHA bins.
# Reduced chi-squared =         0.9085 for     57 degrees of freedom 
# Null hypothesis probability =   6.704292e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.051e-07   1.882e-08
25- 50  5.151e-07   6.628e-08
50-150  1.450e-06   1.850e-07
15-150  2.070e-06   2.190e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.996       (      )
Norm        : 1.04893       (-1.04893     -1.04893)
------------------------------------------------------------
# Chi-Squared =          54.02 using 59 PHA bins.
# Reduced chi-squared =         0.9477 for     57 degrees of freedom 
# Null hypothesis probability =   5.876372e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.059e-07   1.595e-07
25- 50  5.885e-07   3.086e-07
50-150  1.291e-06   6.850e-07
15-150  2.185e-06   1.140e-06
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.41230        (-3.4131      4.54847)
R1^2/D10^2  : 6.90142E-02        (-0.0428441      0.198181)
kT2 [keV]   : 28.7634        (-6.56232      28.9678)
R2^2/D10^2  : 2.55810E-03    (-0.00231483   0.00446675)
------------------------------------------------------------
# Chi-Squared =          36.97 using 59 PHA bins.
# Reduced chi-squared =         0.6722 for     55 degrees of freedom 
# Null hypothesis probability =   9.704784e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.822e-07   9.824e-08
25- 50  5.652e-07   2.953e-07
50-150  1.572e-06   7.797e-07
15-150  2.319e-06   1.062e-06

Peak spectrum fit

Power-law model
Time interval is from   -0.648 sec. to    0.352 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.883694     ( -0.500141   0.437319 )
Norm@50keV  : 1.01008E-02    ( -0.00294326   0.00275884 )
------------------------------------------------------------
# Chi-Squared =          58.34 using 59 PHA bins.
# Reduced chi-squared =          1.024 for     57 degrees of freedom 
# Null hypothesis probability =   4.258062e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.15926 ( -0.318893  0.32822 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.14082e-07 ( -2.73535e-08  2.73752e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.648 sec. to    0.352 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.754070     ( -2.55209   -0.754061 )
Epeak [keV] : 655.394      ( -655.35 -655.35 )
Norm@50keV  : 1.12706E-02    ( -0.00370319   0.0624395 )
------------------------------------------------------------
# Chi-Squared =          58.33 using 59 PHA bins.
# Reduced chi-squared =          1.042 for     56 degrees of freedom 
# Null hypothesis probability =   3.898432e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.15105 ( -0.333656  0.3347 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.79552e-07 ( -1.68333e-07  1.91542e-07 ) ergs/cm2
 
Band function
Time interval is from   -0.648 sec. to    0.352 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.776827   ( 0.776825   0.776825 )
beta        : -0.883693    ( -0.437211   0.500196 )
Epeak [keV] : 20.8721      ( -20.9086 -20.9086 )
Norm@50keV   : 1.60120E-02    ( -0.0083898   0 )
------------------------------------------------------------
# Chi-Squared =          58.34 using 59 PHA bins.
# Reduced chi-squared =          1.061 for     55 degrees of freedom 
# Null hypothesis probability =   3.535729e-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]    : 28.6529  (-7.94306  14.9556)
R^2/D10^2   : 1.90838E-02  (-0.0134437   0.0340405)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          60.32 using 59 PHA bins.
# Reduced chi-squared =          1.058 for     57 degrees of freedom 
# Null hypothesis probability =   3.565533e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.520e-09   1.545e-09
25- 50  1.525e-08   8.172e-09
50-150  8.990e-08   5.066e-08
15-150  1.077e-07   6.120e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.999       (      )
Norm        : 5.17838       (-5.17838     -5.17838)
------------------------------------------------------------
# Chi-Squared =          65.44 using 59 PHA bins.
# Reduced chi-squared =          1.148 for     57 degrees of freedom 
# Null hypothesis probability =   2.070661e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.290e-08   7.515e-09
25- 50  2.480e-08   1.421e-08
50-150  5.440e-08   3.079e-08
15-150  9.210e-08   5.165e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.82701        (-6.82701      -6.82701)
R1^2/D10^2  : 0.803115        (-0.803115      -0.803115)
kT2 [keV]   : 35.5366        (-13.0066      -35.5366)
R2^2/D10^2  : 9.33359E-03    (-0.00933359   0.0166508)
------------------------------------------------------------
# Chi-Squared =          58.19 using 59 PHA bins.
# Reduced chi-squared =          1.058 for     55 degrees of freedom 
# Null hypothesis probability =   3.588300e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.507e-09   4.465e-09
25- 50  1.849e-08   1.080e-08
50-150  9.007e-08   5.045e-08
15-150  1.161e-07   6.310e-08
Plot creation:
Fri Oct 12 14:39:28 EDT 2012