batgrbproduct Analysis for Trigger=519043

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Apr  1 19:57:30 EDT 2012
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger519043/GCN5_download_cron
======================================================================

  Trigger: 00519043      Segment: 000

  BAT Trigger Time: 354950664   [s; MET]
      Trigger Stop: 354950728   [s; MET]
               UTC: 2012-04-01T05:24:15.946360    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 58.0683562384394   Dec: -17.6710926873154  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.99
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    7.99

  Flight Position:   [ source = BAT ]
    RA: 58.0683562384394   Dec: -17.6710926873154  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 58.0561098483055   Dec: -17.6587140493346  [deg; J2000]  
        { 03h 52m 13.5s , -17d 39' 31.4" }
         +/- 2.47226629695559 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.06299483942582 [arcmin] (formal 1-sigma fit error)
    SNR: 8.34744832851257
 
  Angular difference between Flight and Ground position is 1.020697 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 130.283999919891 +/- 24.2015222583918
        Measured from: -87.1719998717308
                   to: 43.1120000481606     [s; relative to TRIGTIME]
     T50: 61.1119999885559 +/- 16.2410823350224
        Measured from: -53.475999891758
                   to: 7.63600009679794     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -92.5199999809265     
                   to: -91.5199999809265     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -92.972000002861     
                   to: 52.716000020504     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.482947   0.690764   0.367765   0.064702
           0.070157   0.071998   0.062907   0.053820 [error]
 Peak     -0.004250   0.030008   0.013489   0.014090
           0.012218   0.012247   0.011565   0.009282 [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 1.45e-07 2.41e-07 3.04e-07 7.67e-07 9.03e-07 1.46e-06   erg/cm2
              Error 2.82e-08 3.09e-08 5.91e-08 3.06e-07 1.40e-07 3.62e-07   erg/cm2
Peak flux Power-law 3.41e-04 3.22e-03 2.74e-02 1.46e+00 1.09e-01 8.84e-01   ph/cm2/s
              Error 5.55e-02 7.56e-02 9.51e-02 1.37e+00 2.70e-01 0.00e+00   ph/cm2/s
 
Fluence   Cutoff-PL 1.36e-07 2.58e-07 3.05e-07 3.09e-07 1.01e-06 0.00e+00   erg/cm2
              Error 3.21e-08 4.20e-08 6.53e-08 5.08e-07 5.12e-07 0.00e+00   erg/cm2
Peak flux Cutoff-PL 2.55e-04 2.68e-03 2.54e-02 3.59e+00 1.08e-01 7.66e-01   ph/cm2/s
              Error 5.32e-02 7.42e-02 9.46e-02 2.85e+00 2.68e-01 0.00e+00   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    1.662    0.229    -      -           6.67e-04 9.60e-05   62.350 57
CPL   1.094    0.941      71.9  -14.0      1.37e-03 2.45e-03   61.240 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL   -2.087    0.000    -      -           2.26e-04 2.33e-03   62.990 57
CPL  -0.165    0.721    10000.0    0.0      2.23e-03 2.57e-03   63.880 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  145.688  -92.972   52.716
T90   130.284  -87.172   43.112
T50    61.112  -53.476    7.636
Peak    1.000  -92.520  -91.520

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   58.0561 -17.6587 0.0230    1.8  141.2       0.6658     8.3  TRIG_00519043       
------------------------------------------
 
Foreground time interval of the image:
-15.599  52.716 (delta_t =  68.315 [sec])
Background time interval of the image:

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  -92.972 sec. to   52.716 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.66227     ( -0.224181   0.23301 )
Norm@50keV  : 6.67101E-04    ( -9.69854e-05   9.50589e-05 )
------------------------------------------------------------
# Chi-Squared =          62.35 using 59 PHA bins.
# Reduced chi-squared =          1.094 for     57 degrees of freedom 
# Null hypothesis probability =   2.916737e-01
 
Photon flux (15-150 keV)    in 145.7 sec: 8.74627E-02 ( -0.011233  0.011236 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.02887e-07 ( -1.38015e-07  1.4109e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -92.972 sec. to   52.716 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.09434     ( -1.14467   0.737918 )
Epeak [keV] : 71.9253      ( -43.9454 -71.9255 )
Norm@50keV  : 1.36718E-03    ( -0.000437495   0.0044687 )
------------------------------------------------------------
# Chi-Squared =          61.24 using 59 PHA bins.
# Reduced chi-squared =          1.094 for     56 degrees of freedom 
# Null hypothesis probability =   2.935019e-01
 
Photon flux (15-150 keV)    in 145.7 sec: 8.54870E-02 ( -0.0115988  0.0116619 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.00746e-06 ( -2.86771e-07  7.37127e-07 ) ergs/cm2
 
Band function
Time interval is from  -92.972 sec. to   52.716 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.13238   ( 1.13259   0.736039 )
beta        : -9.36766    ( 9.99571   19.9957 )
Epeak [keV] : 74.6318      ( -74.5675 -74.5675 )
Norm@50keV   : 1.29723E-03    ( -0.000586685   0.00115166 )
------------------------------------------------------------
# Chi-Squared =          61.25 using 59 PHA bins.
# Reduced chi-squared =          1.114 for     55 degrees of freedom 
# Null hypothesis probability =   2.618836e-01
 
Photon flux (15-150 keV)    in 145.7 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]    : 11.9824  (-1.73525  2.13391)
R^2/D10^2   : 2.16278E-02  (-0.00970778   0.0165991)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          71.14 using 59 PHA bins.
# Reduced chi-squared =          1.248 for     57 degrees of freedom 
# Null hypothesis probability =   9.854624e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.568e-08   2.057e-08
25- 50  3.006e-07   5.704e-08
50-150  2.593e-07   7.926e-08
15-150  6.555e-07   1.097e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 132.950       (-22.7535      -100.569)
Norm        : 0.368506       (-0.0533744     0.0666109)
------------------------------------------------------------
# Chi-Squared =          61.34 using 59 PHA bins.
# Reduced chi-squared =          1.076 for     57 degrees of freedom 
# Null hypothesis probability =   3.233796e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.391e-07   2.429e-08
25- 50  2.532e-07   3.490e-08
50-150  4.743e-07   8.822e-08
15-150  8.666e-07   1.152e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.00949        (-2.82316      2.69993)
R1^2/D10^2  : 6.63798E-02        (-0.0389472      0.265382)
kT2 [keV]   : 27.4028        (-22.0593      107.385)
R2^2/D10^2  : 7.13540E-04    (-0.00069973   0.00193227)
------------------------------------------------------------
# Chi-Squared =          61.31 using 59 PHA bins.
# Reduced chi-squared =          1.115 for     55 degrees of freedom 
# Null hypothesis probability =   2.601360e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.252e-07   7.008e-08
25- 50  2.734e-07   1.397e-07
50-150  4.697e-07   2.709e-07
15-150  8.683e-07   4.551e-07

Peak spectrum fit

Power-law model
Time interval is from  -92.520 sec. to  -91.520 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -2.08745     (     )
Norm@50keV  : 2.26170E-04    ( -0.000225629   0.00443277 )
------------------------------------------------------------
# Chi-Squared =          62.99 using 59 PHA bins.
# Reduced chi-squared =          1.105 for     57 degrees of freedom 
# Null hypothesis probability =   2.728749e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.108609 ( -0.108609  0.43188 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.97292e-08 ( -1.97292e-08  4.55212e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -92.520 sec. to  -91.520 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.165032     ( -0.0801412   1.36164 )
Epeak [keV] : 10000.00      (   )
Norm@50keV  : 2.23030E-03    ( -0.00219606   0.00295224 )
------------------------------------------------------------
# Chi-Squared =          63.88 using 59 PHA bins.
# Reduced chi-squared =          1.141 for     56 degrees of freedom 
# Null hypothesis probability =   2.191937e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.108280 ( -0.10828  0.426811 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.04494e-07 ( -7.04494e-07  2.94392e-06 ) ergs/cm2
 
Band function
Time interval is from  -92.520 sec. to  -91.520 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.625938   ( -0.0600778   -0.0600778 )
beta        : 2.08519    ( -3.20474   -2.01673 )
Epeak [keV] : 14.4070      ( -14.407 -14.407 )
Norm@50keV   : 5.57467E-04    ( -0.00055745   7607.06 )
------------------------------------------------------------
# Chi-Squared =          62.99 using 59 PHA bins.
# Reduced chi-squared =          1.145 for     55 degrees of freedom 
# Null hypothesis probability =   2.146616e-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]    : 198.103  (  )
R^2/D10^2   : 1.51593E-04  (-9.51676e-05   0.0382289)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          64.08 using 59 PHA bins.
# Reduced chi-squared =          1.124 for     57 degrees of freedom 
# Null hypothesis probability =   2.422314e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.204e-10   4.660e-10
25- 50  1.835e-09   3.586e-09
50-150  4.109e-08   6.225e-08
15-150  4.314e-08   6.525e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.324       (      )
Norm        : 1.26833       (-1.11073     1.11466)
------------------------------------------------------------
# Chi-Squared =          67.03 using 59 PHA bins.
# Reduced chi-squared =          1.176 for     57 degrees of freedom 
# Null hypothesis probability =   1.707733e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00
Double BB
------------------------------------------------------------
# Chi-Squared =          64.26 using 59 PHA bins.
# Chi-Squared =          62.95 using 59 PHA bins.
# Chi-Squared =          62.93 using 59 PHA bins.
# Chi-Squared =          62.88 using 59 PHA bins.
# Reduced chi-squared =          1.168 for     55 degrees of freedom 
# Reduced chi-squared =          1.145 for     55 degrees of freedom 
# Reduced chi-squared =          1.144 for     55 degrees of freedom 
# Reduced chi-squared =          1.143 for     55 degrees of freedom 
# Null hypothesis probability =   1.840087e-01
# Null hypothesis probability =   2.156359e-01
# Null hypothesis probability =   2.162089e-01
# Null hypothesis probability =   2.174227e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00
Plot creation:
Sun Apr  1 20:20:53 EDT 2012