batgrbproduct Analysis for Trigger=592544

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu Mar 20 17:45:54 EDT 2014
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger592544/GCN5_download_cron
======================================================================

  Trigger: 00592544      Segment: 000

  BAT Trigger Time: 416974377.728   [s; MET]
      Trigger Stop: 416974377.984   [s; MET]
               UTC: 2014-03-20T02:12:45.946760    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 281.856830560698   Dec: -11.172835071369  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    6.8
     Image Trigger?:     NO
     Rate S/N Ratio:     19.5959179422654  [ if not an image trigger ]
     Image S/N Ratio:    6.8

  Flight Position:   [ source = BAT ]
    RA: 281.856830560698   Dec: -11.172835071369  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 281.843429099677   Dec: -11.1884646114826  [deg; J2000]  
        { 18h 47m 22.4s , -11d 11' 18.5" }
         +/- 2.43036970542057 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.25269695804102 [arcmin] (formal 1-sigma fit error)
    SNR: 8.5537763309799
 
  Angular difference between Flight and Ground position is 1.225424 arcmin
 
  Partial Coding Fraction: 0.8828125    [ including projection effects ]

  Duration
     T90: 0.451999962329865 +/- 0.0716938014300129
        Measured from: -0.0479998588562012
                   to: 0.404000103473663     [s; relative to TRIGTIME]
     T50: 0.247999966144562 +/- 0.105603056882199
        Measured from: 0.0280001163482666
                   to: 0.276000082492828     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.319999992847443     
                   to: 0.680000007152557     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.0759999752044678     
                   to: 0.435999989509583     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.020245   0.020481   0.030905   0.009885
           0.004753   0.004711   0.004400   0.003634 [error]
 Peak      0.022404   0.021128   0.030520   0.006732
           0.006577   0.006337   0.005613   0.004737 [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 4.93e-09 1.06e-08 1.80e-08 7.00e-08 4.94e-08 1.04e-07   erg/cm2
              Error 1.85e-09 2.32e-09 4.11e-09 3.79e-08 1.03e-08 4.01e-08   erg/cm2
Peak flux Power-law 1.94e-01 2.07e-01 1.57e-01 1.94e-01 6.32e-01 7.52e-01   ph/cm2/s
              Error 8.83e-02 5.55e-02 4.66e-02 1.28e-01 1.54e-01 1.81e-01   ph/cm2/s
 
Fluence   Cutoff-PL 4.97e-09 1.07e-08 1.80e-08 6.90e-08 4.93e-08 1.03e-07   erg/cm2
              Error 2.58e-09 2.35e-09 4.38e-09 4.63e-08 1.02e-08 5.49e-08   erg/cm2
Peak flux Cutoff-PL 1.96e-01 2.08e-01 1.56e-01 1.91e-01 6.33e-01 7.50e-01   ph/cm2/s
              Error 1.43e-01 4.25e-02 4.98e-02 1.71e-01 1.56e-01 2.08e-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    1.240    0.359    -      -           9.62e-03 1.79e-03   74.940 57
CPL   2.410    0.000     137.5    0.0      2.28e-03 0.00e+00   74.900 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.400    0.462    -      -           5.19e-03 1.23e-03   59.120 57
CPL   1.410    0.733    9999.4    0.0      5.18e-03 9.97e-03   59.120 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: 0.384000 sec.
T50 in the 50-300 keV band: 0.128000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    0.512   -0.076    0.436
T90     0.452   -0.048    0.404
T50     0.248    0.028    0.276
Peak    1.000   -0.320    0.680

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  281.8434 -11.1885 0.0226   26.8 -172.9       0.0790     8.6  TRIG_00592544       
------------------------------------------
 
Foreground time interval of the image:
 -0.076   0.436 (delta_t =   0.512 [sec])
Background time interval of the image:
-239.728 -57.660 (delta_t = 182.068 [sec])
-56.728  -0.076 (delta_t =  56.652 [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   -0.076 sec. to    0.436 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.23954     ( -0.359583   0.357419 )
Norm@50keV  : 9.61771E-03    ( -0.00179002   0.00178999 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          74.94 using 59 PHA bins.
# Reduced chi-squared =          1.315 for     57 degrees of freedom 
# Null hypothesis probability =   5.570335e-02
 
Photon flux (15-150 keV)    in 0.512 sec: 1.13561 ( -0.220355  0.221411 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.94192e-08 ( -1.02145e-08  1.03216e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.076 sec. to    0.436 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.41030     (     )
Epeak [keV] : 137.481      (   )
Norm@50keV  : 2.27616E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          74.90 using 59 PHA bins.
# Reduced chi-squared =          1.338 for     56 degrees of freedom 
# Null hypothesis probability =   4.659067e-02
 
Photon flux (15-150 keV)    in 0.512 sec: 1.13700 ( -0.223361  0.21931 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.92907e-08 ( -1.00713e-08  1.03988e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.076 sec. to    0.436 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.23508   ( -0.406832   0.405416 )
beta        : -9.37162    ( 5.95203   9.37162 )
Epeak [keV] : 1.00000E+04      ( 0 -10000 )
Norm@50keV   : 9.65999E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          74.95 using 59 PHA bins.
# Reduced chi-squared =          1.363 for     55 degrees of freedom 
# Null hypothesis probability =   3.812753e-02
 
Photon flux (15-150 keV)    in 0.512 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]    : 23.2676  (-5.09679  7.00787)
R^2/D10^2   : 3.17047E-02  (-0.0177445   0.0379597)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          81.66 using 59 PHA bins.
# Reduced chi-squared =          1.433 for     57 degrees of freedom 
# Null hypothesis probability =   1.776163e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.584e-09   6.884e-10
25- 50  8.648e-09   2.899e-09
50-150  3.496e-08   1.316e-08
15-150  4.519e-08   1.596e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 4.70935       (-0.89426     0.894164)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          77.94 using 59 PHA bins.
# Reduced chi-squared =          1.367 for     57 degrees of freedom 
# Null hypothesis probability =   3.415573e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.004e-09   3.502e-09
25- 50  1.155e-08   6.720e-09
50-150  2.533e-08   1.445e-08
15-150  4.289e-08   2.448e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.18913        (-1.86439      2.49822)
R1^2/D10^2  : 9.04130        (-7.95061      227.092)
kT2 [keV]   : 28.3449        (-6.7974      12.0241)
R2^2/D10^2  : 1.58087E-02    (-0.0103057   0.0215561)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.28 using 59 PHA bins.
# Reduced chi-squared =          1.278 for     55 degrees of freedom 
# Null hypothesis probability =   8.039600e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.296e-09   3.458e-09
25- 50  8.495e-09   4.194e-09
50-150  3.674e-08   2.154e-08
15-150  5.153e-08   2.395e-08

Peak spectrum fit

Power-law model
Time interval is from   -0.320 sec. to    0.680 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.40045     ( -0.456248   0.46833 )
Norm@50keV  : 5.18573E-03    ( -0.00123245   0.00122163 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.12 using 59 PHA bins.
# Reduced chi-squared =          1.037 for     57 degrees of freedom 
# Null hypothesis probability =   3.981053e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.631589 ( -0.153126  0.153986 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.01037e-08 ( -1.31519e-08  1.33751e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.320 sec. to    0.680 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.41046     ( -1.00325   0.462487 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 5.18475E-03    ( -0.00120887   0.0187297 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.12 using 59 PHA bins.
# Reduced chi-squared =          1.056 for     56 degrees of freedom 
# Null hypothesis probability =   3.622388e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.632700 ( -0.158875  0.152607 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.98975e-08 ( -1.30051e-08  1.35074e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.320 sec. to    0.680 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.39511   ( -0.742   1.26588 )
beta        : -10.00000    ( 10   10 )
Epeak [keV] : 9999.36      ( -9932.46 -9999.36 )
Norm@50keV   : 5.19731E-03    ( -0.00123012   0.0187561 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.12 using 59 PHA bins.
# Reduced chi-squared =          1.075 for     55 degrees of freedom 
# Null hypothesis probability =   3.275696e-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]    : 21.0951  (-5.84986  8.43199)
R^2/D10^2   : 2.27942E-02  (-0.0150226   0.0436785)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.25 using 59 PHA bins.
# Reduced chi-squared =          1.127 for     57 degrees of freedom 
# Null hypothesis probability =   2.376302e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.913e-09   1.084e-09
25- 50  9.859e-09   5.222e-09
50-150  3.271e-08   2.000e-08
15-150  4.448e-08   2.259e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.360       (-104.749      -199.362)
Norm        : 2.59779       (-0.611359     0.612836)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.93 using 59 PHA bins.
# Reduced chi-squared =          1.051 for     57 degrees of freedom 
# Null hypothesis probability =   3.700306e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.469e-09   3.829e-09
25- 50  1.244e-08   7.370e-09
50-150  2.729e-08   1.618e-08
15-150  4.620e-08   2.670e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 2.84906        (-1.9985      3.83721)
R1^2/D10^2  : 44.2641        (-46.9899      63175.3)
kT2 [keV]   : 24.6851        (-6.9848      13.8922)
R2^2/D10^2  : 1.29481E-02    (-0.00988922   0.0162932)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.75 using 59 PHA bins.
# Reduced chi-squared =          1.014 for     55 degrees of freedom 
# Null hypothesis probability =   4.465040e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.341e-09   4.104e-09
25- 50  8.500e-09   4.717e-09
50-150  3.520e-08   2.152e-08
15-150  5.104e-08   2.820e-08
Plot creation:
Thu Mar 20 18:33:47 EDT 2014