batgrbproduct Analysis for Trigger=522656

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue May 22 07:46:12 EDT 2012
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger522656/batgroup_hand_proc
======================================================================

  Trigger: 00522656      Segment: 000

  BAT Trigger Time: 359335335.936   [s; MET]
      Trigger Stop: 359335336.96   [s; MET]
               UTC: 2012-05-21T23:22:07.703120    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 214.28954900101   Dec: 42.1230533213039  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    13.33
     Image Trigger?:     NO
     Rate S/N Ratio:     29.4108823397055  [ if not an image trigger ]
     Image S/N Ratio:    13.33

  Flight Position:   [ source = BAT ]
    RA: 214.28954900101   Dec: 42.1230533213039  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 214.287894860563   Dec: 42.1443831342319  [deg; J2000]  
        { 14h 17m 09.1s , +42d 08' 39.8" }
         +/- 1.00383809603551 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.363575718702112 [arcmin] (formal 1-sigma fit error)
    SNR: 30.2511370999
 
  Angular difference between Flight and Ground position is 1.281903 arcmin
 
  Partial Coding Fraction: 0.6796875    [ including projection effects ]

  Duration
     T90: 26.7359999418259 +/- 4.4099641931621
        Measured from: 0.0320000052452087
                   to: 26.7679999470711     [s; relative to TRIGTIME]
     T50: 10.2719999551773 +/- 1.35674907050128
        Measured from: 1.44800001382828
                   to: 11.7199999690056     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.0199999809265137     
                   to: 0.980000019073486     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -1.03200000524521     
                   to: 31.8439999818802     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.628024   0.782241   0.493249   0.099729
           0.038246   0.039183   0.035544   0.031611 [error]
 Peak      0.053723   0.089118   0.078284   0.026090
           0.007546   0.008173   0.007652   0.006177 [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 1.96e-07 3.14e-07 3.80e-07 8.99e-07 1.15e-06 1.79e-06   erg/cm2
              Error 1.90e-08 1.90e-08 3.50e-08 1.73e-07 8.11e-08 2.04e-07   erg/cm2
Peak flux Power-law 5.26e-01 6.08e-01 5.06e-01 7.08e-01 1.90e+00 2.35e+00   ph/cm2/s
              Error 9.84e-02 6.87e-02 6.19e-02 1.84e-01 1.93e-01 2.51e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.84e-07 3.29e-07 3.82e-07 4.45e-07 1.34e-06 0.00e+00   erg/cm2
              Error 2.22e-08 2.41e-08 3.74e-08 3.22e-07 3.37e-07 0.00e+00   erg/cm2
Peak flux Cutoff-PL 5.13e-01 6.14e-01 5.12e-01 6.15e-01 1.89e+00 2.25e+00   ph/cm2/s
              Error 1.15e-01 7.52e-02 6.98e-02 2.96e-01 1.50e-01 3.62e-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    1.726    0.113    -      -           3.78e-03 2.53e-04   72.270 57
CPL   1.281    0.462      75.1  266.9      6.51e-03 3.92e-03   69.220 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.267    0.179    -      -           1.60e-02 1.61e-03   62.230 57
CPL   1.146    0.496     361.8    0.0      1.82e-02 1.94e-02   62.140 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: 9.472000 sec.
T50 in the 50-300 keV band: 4.544000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   32.876   -1.032   31.844
T90    26.736    0.032   26.768
T50    10.272    1.448   11.720
Peak    1.000   -0.020    0.980

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  214.2879 +42.1444 0.0064   19.2   95.5       1.7703    30.3  TRIG_00522656       
------------------------------------------
 
Foreground time interval of the image:
 -1.032  17.365 (delta_t =  18.397 [sec])
Background time interval of the image:
-180.435  -1.032 (delta_t = 179.403 [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   -1.032 sec. to   31.844 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.72576     ( -0.111579   0.113845 )
Norm@50keV  : 3.77588E-03    ( -0.000254118   0.000251676 )
------------------------------------------------------------
# Chi-Squared =          72.27 using 59 PHA bins.
# Reduced chi-squared =          1.268 for     57 degrees of freedom 
# Null hypothesis probability =   8.365954e-02
 
Photon flux (15-150 keV)    in 32.88 sec: 0.506077 ( -0.0308437  0.0308701 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.14732e-06 ( -8.06323e-08  8.14684e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -1.032 sec. to   31.844 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.28069     ( -0.487157   0.436242 )
Epeak [keV] : 75.0816      ( -19.046 514.701 )
Norm@50keV  : 6.51022E-03    ( -0.00264005   0.00520644 )
------------------------------------------------------------
# Chi-Squared =          69.22 using 59 PHA bins.
# Reduced chi-squared =          1.236 for     56 degrees of freedom 
# Null hypothesis probability =   1.103312e-01
 
Photon flux (15-150 keV)    in 32.88 sec: 0.494051 ( -0.032891  0.032893 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.34047e-06 ( -2.31748e-07  4.42811e-07 ) ergs/cm2
 
Band function
Time interval is from   -1.032 sec. to   31.844 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.28066   ( -0.322461   0.541011 )
beta        : -10.00000    ( 1.70151e+11   1.70151e+11 )
Epeak [keV] : 75.0671      ( -19.043 514.627 )
Norm@50keV   : 6.50956E-03    ( -0.00264019   0.00520823 )
------------------------------------------------------------
# Chi-Squared =          69.22 using 59 PHA bins.
# Reduced chi-squared =          1.259 for     55 degrees of freedom 
# Null hypothesis probability =   9.397649e-02
 
Photon flux (15-150 keV)    in 32.88 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]    : 12.2545  (  )
R^2/D10^2   : 0.111315  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =         122.33 using 59 PHA bins.
# Reduced chi-squared =         2.1461 for     57 degrees of freedom 
# Null hypothesis probability =   1.139485e-06
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.164e-07   1.266e-08
25- 50  3.755e-07   2.745e-08
50-150  3.437e-07   5.345e-08
15-150  8.356e-07   6.083e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 119.502       (-8.09798      62.4529)
Norm        : 2.14874       (-0.165235     0.188117)
------------------------------------------------------------
# Chi-Squared =          69.22 using 59 PHA bins.
# Reduced chi-squared =          1.214 for     57 degrees of freedom 
# Null hypothesis probability =   1.285966e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.840e-07   1.685e-08
25- 50  3.290e-07   1.988e-08
50-150  5.860e-07   8.253e-08
15-150  1.099e-06   1.032e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.87378        (-1.23311      1.28168)
R1^2/D10^2  : 0.614433        (-0.262939      0.593909)
kT2 [keV]   : 23.5980        (-4.50892      7.44565)
R2^2/D10^2  : 7.46261E-03    (-0.00472945   0.00968355)
------------------------------------------------------------
# Chi-Squared =          68.65 using 59 PHA bins.
# Reduced chi-squared =          1.248 for     55 degrees of freedom 
# Null hypothesis probability =   1.021549e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.749e-07   4.038e-08
25- 50  3.334e-07   5.770e-08
50-150  5.898e-07   2.674e-07
15-150  1.098e-06   3.083e-07

Peak spectrum fit

Power-law model
Time interval is from   -0.020 sec. to    0.980 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.26663     ( -0.178489   0.178559 )
Norm@50keV  : 1.59832E-02    ( -0.00161082   0.0016064 )
------------------------------------------------------------
# Chi-Squared =          62.23 using 59 PHA bins.
# Reduced chi-squared =          1.092 for     57 degrees of freedom 
# Null hypothesis probability =   2.953987e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.89561 ( -0.192774  0.193063 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.59268e-07 ( -1.82107e-08  1.83796e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.020 sec. to    0.980 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.14589     ( -0.708057   0.284206 )
Epeak [keV] : 361.847      ( -378.598 -378.598 )
Norm@50keV  : 1.82389E-02    ( -0.018267   0.0204678 )
------------------------------------------------------------
# Chi-Squared =          62.14 using 59 PHA bins.
# Reduced chi-squared =          1.110 for     56 degrees of freedom 
# Null hypothesis probability =   2.666647e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.88562 ( -0.19965  0.09961 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.9226e-07 ( -1.09246e-07  1.02983e-07 ) ergs/cm2
 
Band function
Time interval is from   -0.020 sec. to    0.980 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.12398   ( 0.984569   2.07723 )
beta        : -9.98033    ( 166.788   176.788 )
Epeak [keV] : 325.220      ( -206.689 -325.325 )
Norm@50keV   : 1.87352E-02    ( -0.0040943   0.0199912 )
------------------------------------------------------------
# Chi-Squared =          62.13 using 59 PHA bins.
# Reduced chi-squared =          1.130 for     55 degrees of freedom 
# Null hypothesis probability =   2.371832e-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]    : 17.9849  (-2.46495  2.96396)
R^2/D10^2   : 0.120774  (-0.0473648   0.0761527)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          85.78 using 59 PHA bins.
# Reduced chi-squared =          1.505 for     57 degrees of freedom 
# Null hypothesis probability =   8.165841e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.824e-09   1.656e-09
25- 50  3.616e-08   5.485e-09
50-150  8.488e-08   1.606e-08
15-150  1.289e-07   1.770e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.997       (      )
Norm        : 7.77609       (-7.77609     -7.77609)
------------------------------------------------------------
# Chi-Squared =          69.40 using 59 PHA bins.
# Reduced chi-squared =          1.218 for     57 degrees of freedom 
# Null hypothesis probability =   1.255083e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.936e-08   1.032e-08
25- 50  3.725e-08   1.986e-08
50-150  8.169e-08   4.348e-08
15-150  1.383e-07   7.405e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.69743        (-2.52349      2.81533)
R1^2/D10^2  : 1.22948        (-0.758849      3.58043)
kT2 [keV]   : 31.7696        (-8.33011      20.497)
R2^2/D10^2  : 1.55500E-02    (-0.0120362   0.0191119)
------------------------------------------------------------
# Chi-Squared =          62.18 using 59 PHA bins.
# Reduced chi-squared =          1.131 for     55 degrees of freedom 
# Null hypothesis probability =   2.357014e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.515e-08   7.504e-09
25- 50  3.585e-08   1.543e-08
50-150  1.088e-07   5.713e-08
15-150  1.598e-07   7.062e-08
Plot creation:
Tue May 22 08:43:33 EDT 2012