batgrbproduct Analysis for Trigger=512035

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Jan 20 10:51:29 EST 2012
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger512035/batgroup_hand_proc
======================================================================

  Trigger: 00512035      Segment: 000

  BAT Trigger Time: 348638678.016   [s; MET]
      Trigger Stop: 348638679.04   [s; MET]
               UTC: 2012-01-19T04:04:30.217780    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 120.027125198109   Dec: -9.07399060735125  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    15.49
     Image Trigger?:     NO
     Rate S/N Ratio:     45.4642716866772  [ if not an image trigger ]
     Image S/N Ratio:    15.49

  Flight Position:   [ source = BAT ]
    RA: 120.027125198109   Dec: -9.07399060735125  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 120.028703910441   Dec: -9.07646802953659  [deg; J2000]  
        { 08h 00m 06.9s , -09d 04' 35.3" }
         +/- 0.443131100452015 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.107002707902137 [arcmin] (formal 1-sigma fit error)
    SNR: 97.2909255997564
 
  Angular difference between Flight and Ground position is 0.175626 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 253.843999922276 +/- 24.4826720940004
        Measured from: 0.132000148296356
                   to: 253.976000070572     [s; relative to TRIGTIME]
     T50: 25.2719999551773 +/- 1.08595396114645
        Measured from: 9.24400013685226
                   to: 34.5160000920296     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 9.21200001239777     
                   to: 10.2120000123978     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -13.2159999608994     
                   to: 361.888000011444     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     6.826048  10.206457   8.174685   1.796496
           0.126224   0.140081   0.128755   0.132186 [error]
 Peak      0.283816   0.474759   0.456772   0.134452
           0.009575   0.011629   0.011840   0.008732 [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 2.02e-06 4.01e-06 6.17e-06 2.08e-05 1.72e-05 3.30e-05   erg/cm2
              Error 8.56e-08 9.59e-08 1.43e-07 1.16e-06 3.54e-07 1.22e-06   erg/cm2
Peak flux Power-law 2.53e+00 3.19e+00 2.94e+00 4.73e+00 1.03e+01 1.34e+01   ph/cm2/s
              Error 1.50e-01 1.13e-01 9.62e-02 3.42e-01 3.04e-01 4.17e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.94e-06 4.04e-06 6.25e-06 1.66e-05 1.70e-05 2.89e-05   erg/cm2
              Error 1.15e-07 1.01e-07 1.62e-07 3.39e-06 4.04e-07 3.34e-06   erg/cm2
Peak flux Cutoff-PL 2.36e+00 3.23e+00 3.02e+00 3.62e+00 1.01e+01 1.22e+01   ph/cm2/s
              Error 1.97e-01 1.19e-01 1.18e-01 7.78e-01 3.23e-01 8.54e-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 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    1.377    0.039    -      -           4.74e-03 9.22e-05   51.180 57
CPL   1.210    0.155     266.0  949.1      5.62e-03 7.04e-04   47.790 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.119    0.053    -      -           8.83e-02 2.54e-03   52.290 57
CPL   0.859    0.215     249.6  391.5      1.15e-01 2.52e-02   47.780 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: 282.112000 sec.
T50 in the 50-300 keV band: 33.088000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  375.104  -13.216  361.888
T90   253.844    0.132  253.976
T50    25.272    9.244   34.516
Peak    1.000    9.212   10.212

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  120.0287  -9.0765 0.0020    5.1  -12.5      10.6721    97.3  TRIG_00512035       
------------------------------------------
 
Foreground time interval of the image:
-13.216  11.785 (delta_t =  25.001 [sec])
Background time interval of the image:
-239.016 -13.216 (delta_t = 225.800 [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  -13.216 sec. to  361.888 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.37723     ( -0.0385813   0.0385179 )
Norm@50keV  : 4.73656E-03    ( -9.22474e-05   9.22345e-05 )
------------------------------------------------------------
# Chi-Squared =          51.18 using 59 PHA bins.
# Reduced chi-squared =         0.8979 for     57 degrees of freedom 
# Null hypothesis probability =   6.920639e-01
 
Photon flux (15-150 keV)    in 375.1 sec: 0.573914 ( -0.0125031  0.0125415 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.72493e-05 ( -3.53548e-07  3.53988e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -13.216 sec. to  361.888 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.21030     ( -0.159941   0.149296 )
Epeak [keV] : 266.004      ( -102.094 1796.13 )
Norm@50keV  : 5.61725E-03    ( -0.000438127   0.000969224 )
------------------------------------------------------------
# Chi-Squared =          47.79 using 59 PHA bins.
# Reduced chi-squared =         0.8533 for     56 degrees of freedom 
# Null hypothesis probability =   7.744916e-01
 
Photon flux (15-150 keV)    in 375.1 sec: 0.565999 ( -0.014285  0.014348 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.70459e-05 ( -4.04808e-07  4.0312e-07 ) ergs/cm2
 
Band function
Time interval is from  -13.216 sec. to  361.888 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.644899   ( -0.569743   3.48771 )
beta        : -1.43948    ( -0.111167   0.0607259 )
Epeak [keV] : 70.5204      ( -39.2113 113.772 )
Norm@50keV   : 1.24712E-02    ( -0.00712884   5.33279 )
------------------------------------------------------------
# Chi-Squared =          44.71 using 59 PHA bins.
# Reduced chi-squared =         0.8129 for     55 degrees of freedom 
# Null hypothesis probability =   8.377593e-01
 
Photon flux (15-150 keV)    in 375.1 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]    : 18.0705  (  )
R^2/D10^2   : 3.37700E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =         495.09 using 59 PHA bins.
# Reduced chi-squared =         8.6858 for     57 degrees of freedom 
# Null hypothesis probability =   4.080840e-71
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.271e-07   3.395e-08
25- 50  3.837e-06   9.734e-08
50-150  9.103e-06   3.207e-07
15-150  1.377e-05   3.095e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 2.40891       (     )
------------------------------------------------------------
# Chi-Squared =         128.04 using 59 PHA bins.
# Reduced chi-squared =         2.2463 for     57 degrees of freedom 
# Null hypothesis probability =   2.223618e-07
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.250e-06   1.138e-06
25- 50  4.328e-06   2.194e-06
50-150  9.493e-06   4.794e-06
15-150  1.607e-05   8.128e-06
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.32793        (-0.691518      0.733739)
R1^2/D10^2  : 0.294765        (-0.068349      0.0961696)
kT2 [keV]   : 31.5172        (-2.73979      3.61099)
R2^2/D10^2  : 4.21145E-03    (-0.0012833   0.00156424)
------------------------------------------------------------
# Chi-Squared =          54.73 using 59 PHA bins.
# Reduced chi-squared =         0.9950 for     55 degrees of freedom 
# Null hypothesis probability =   4.850565e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.664e-06   1.213e-07
25- 50  4.171e-06   1.594e-07
50-150  1.109e-05   6.883e-07
15-150  1.693e-05   7.183e-07

Peak spectrum fit

Power-law model
Time interval is from    9.212 sec. to   10.212 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.11950     ( -0.0526064   0.0525072 )
Norm@50keV  : 8.83159E-02    ( -0.00253768   0.00253727 )
------------------------------------------------------------
# Chi-Squared =          52.29 using 59 PHA bins.
# Reduced chi-squared =         0.9174 for     57 degrees of freedom 
# Null hypothesis probability =   6.521160e-01
 
Photon flux (15-150 keV)    in 1 sec: 10.2643 ( -0.304193  0.304511 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.17703e-07 ( -2.93577e-08  2.94201e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    9.212 sec. to   10.212 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.859046     ( -0.220518   0.210156 )
Epeak [keV] : 249.616      ( -88.2598 694.826 )
Norm@50keV  : 0.115418    ( -0.0219254   0.0284517 )
------------------------------------------------------------
# Chi-Squared =          47.78 using 59 PHA bins.
# Reduced chi-squared =         0.8533 for     56 degrees of freedom 
# Null hypothesis probability =   7.746233e-01
 
Photon flux (15-150 keV)    in 1 sec: 10.1232 ( -0.32289  0.3234 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.04818e-07 ( -3.1661e-08  3.151e-08 ) ergs/cm2
 
Band function
Time interval is from    9.212 sec. to   10.212 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.608717   ( -0.428805   1.515 )
beta        : -1.22975    ( 1.22964   0.10493 )
Epeak [keV] : 123.591      ( -81.4472 589.013 )
Norm@50keV   : 0.162449    ( -0.0707394   0.461464 )
------------------------------------------------------------
# Chi-Squared =          47.49 using 59 PHA bins.
# Reduced chi-squared =         0.8635 for     55 degrees of freedom 
# Null hypothesis probability =   7.539329e-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]    : 20.2573  (  )
R^2/D10^2   : 0.460609  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =         231.21 using 59 PHA bins.
# Reduced chi-squared =         4.0564 for     57 degrees of freedom 
# Null hypothesis probability =   7.631762e-23
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.625e-08   2.000e-09
25- 50  1.821e-07   7.750e-09
50-150  5.549e-07   2.670e-08
15-150  7.732e-07   2.870e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 42.3405       (     )
------------------------------------------------------------
# Chi-Squared =         235.93 using 59 PHA bins.
# Reduced chi-squared =         4.1391 for     57 degrees of freedom 
# Null hypothesis probability =   1.251413e-23
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.054e-07   5.390e-08
25- 50  2.028e-07   1.035e-07
50-150  4.448e-07   2.264e-07
15-150  7.531e-07   3.840e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.70001        (-1.22825      1.35974)
R1^2/D10^2  : 3.78710        (-1.26305      2.21568)
kT2 [keV]   : 33.5037        (-3.97359      6.11037)
R2^2/D10^2  : 7.68069E-02    (-0.0321499   0.0408953)
------------------------------------------------------------
# Chi-Squared =          52.84 using 59 PHA bins.
# Reduced chi-squared =         0.9608 for     55 degrees of freedom 
# Null hypothesis probability =   5.574623e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.735e-08   7.190e-09
25- 50  1.913e-07   1.490e-08
50-150  6.474e-07   5.445e-08
15-150  9.060e-07   8.040e-08
Plot creation:
Fri Jan 20 17:30:04 EST 2012