batgrbproduct Analysis for Trigger=592916

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Mar 24 00:17:31 EDT 2014
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger592916/GCN5_download_cron
======================================================================

  Trigger: 00592916      Segment: 000

  BAT Trigger Time: 417263003.712   [s; MET]
      Trigger Stop: 417263004.736   [s; MET]
               UTC: 2014-03-23T10:23:11.917100    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 356.888109888947   Dec: -79.9167691220257  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.58
     Image Trigger?:     NO
     Rate S/N Ratio:     35.2562051276084  [ if not an image trigger ]
     Image S/N Ratio:    7.58

  Flight Position:   [ source = BAT ]
    RA: 356.888109888947   Dec: -79.9167691220257  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 356.975443771524   Dec: -79.9159063040228  [deg; J2000]  
        { 23h 47m 54.1s , -79d 54' 57.3" }
         +/- 1.00615761942162 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.39560331728562 [arcmin] (formal 1-sigma fit error)
    SNR: 30.1515594870802
 
  Angular difference between Flight and Ground position is 0.918916 arcmin
 
  Partial Coding Fraction: 0.1269531    [ including projection effects ]

  Duration
     T90: 104.851999938488 +/- 2.59570412054245
        Measured from: 0.348000109195709
                   to: 105.200000047684     [s; relative to TRIGTIME]
     T50: 72.0079999566078 +/- 0.996971460129056
        Measured from: 12.0000001192093
                   to: 84.0080000758171     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 6.4200000166893     
                   to: 7.4200000166893     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -7.08799999952316     
                   to: 117.367999970913     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     5.993685   8.520005   6.852621   1.870801
           0.124985   0.138084   0.127999   0.104122 [error]
 Peak      0.093483   0.242795   0.306228   0.098090
           0.019777   0.025089   0.025179   0.020295 [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 2.48e-06 4.19e-06 5.37e-06 1.39e-05 1.59e-05 2.59e-05   erg/cm2
              Error 1.10e-07 1.08e-07 1.39e-07 8.17e-07 3.48e-07 8.82e-07   erg/cm2
Peak flux Power-law 1.38e+00 1.86e+00 1.86e+00 3.36e+00 6.19e+00 8.46e+00   ph/cm2/s
              Error 2.84e-01 2.41e-01 1.91e-01 7.09e-01 6.51e-01 8.68e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.29e-06 4.24e-06 5.53e-06 9.87e-06 1.56e-05 2.19e-05   erg/cm2
              Error 1.48e-07 1.15e-07 1.65e-07 1.90e-06 3.78e-07 1.92e-06   erg/cm2
Peak flux Cutoff-PL 1.13e+00 1.92e+00 2.05e+00 1.91e+00 6.07e+00 7.02e+00   ph/cm2/s
              Error 3.59e-01 2.68e-01 2.69e-01 1.12e+00 6.62e-01 9.35e-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    1.639    0.040    -      -           1.37e-02 2.96e-04   59.100 57
CPL   1.344    0.173     126.8   58.7      1.85e-02 3.20e-03   50.170 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.002    0.163    -      -           5.38e-02 5.52e-03   54.950 57
CPL   0.295    0.766     145.3  960.0      1.08e-01 9.02e-02   51.990 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: 104.256000 sec.
T50 in the 50-300 keV band: 61.632000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  124.456   -7.088  117.368
T90   104.852    0.348  105.200
T50    72.008   12.000   84.008
Peak    1.000    6.420    7.420

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  356.9754 -79.9159 0.0064   49.1  159.1       7.2717    30.2  TRIG_00592916       
------------------------------------------
 
Foreground time interval of the image:
 -7.088  16.089 (delta_t =  23.177 [sec])
Background time interval of the image:
-239.712  -7.088 (delta_t = 232.624 [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   -7.088 sec. to  117.368 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.63909     ( -0.0404766   0.0405173 )
Norm@50keV  : 1.36873E-02    ( -0.000296448   0.000296439 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.10 using 59 PHA bins.
# Reduced chi-squared =          1.037 for     57 degrees of freedom 
# Null hypothesis probability =   3.987189e-01
 
Photon flux (15-150 keV)    in 124.5 sec: 1.78084 ( -0.0455723  0.0457707 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.58663e-05 ( -3.48375e-07  3.48453e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -7.088 sec. to  117.368 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.34443     ( -0.175876   0.169695 )
Epeak [keV] : 126.850      ( -27.0513 90.2951 )
Norm@50keV  : 1.84758E-02    ( -0.00286979   0.00353211 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.17 using 59 PHA bins.
# Reduced chi-squared =         0.8959 for     56 degrees of freedom 
# Null hypothesis probability =   6.941424e-01
 
Photon flux (15-150 keV)    in 124.5 sec: 1.73625 ( -0.05114  0.05154 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.56219e-05 ( -3.79352e-07  3.77111e-07 ) ergs/cm2
 
Band function
Time interval is from   -7.088 sec. to  117.368 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.11221   ( -0.356709   0.591662 )
beta        : -1.78353    ( 1.78355   0.0994608 )
Epeak [keV] : 81.5347      ( -29.495 92.9403 )
Norm@50keV   : 2.48896E-02    ( -0.00853427   0.0321372 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.82 using 59 PHA bins.
# Reduced chi-squared =         0.8877 for     55 degrees of freedom 
# Null hypothesis probability =   7.083231e-01
 
Photon flux (15-150 keV)    in 124.5 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]    : 16.4121  (  )
R^2/D10^2   : 0.136981  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         467.03 using 59 PHA bins.
# Reduced chi-squared =         8.1936 for     57 degrees of freedom 
# Null hypothesis probability =   1.021927e-65
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.442e-07   4.233e-08
25- 50  4.059e-06   1.208e-07
50-150  7.715e-06   2.702e-07
15-150  1.272e-05   3.075e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 184.230       (-20.3241      -184.077)
Norm        : 7.12153       (-0.187279     0.202714)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.50 using 59 PHA bins.
# Reduced chi-squared =         0.8860 for     57 degrees of freedom 
# Null hypothesis probability =   7.157311e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.230e-06   1.071e-07
25- 50  4.249e-06   2.210e-07
50-150  9.071e-06   1.846e-06
15-150  1.555e-05   2.061e-06
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.08604        (-0.718464      0.752004)
R1^2/D10^2  : 1.11071        (-0.277517      0.41087)
kT2 [keV]   : 28.0617        (-2.41636      3.16024)
R2^2/D10^2  : 1.51902E-02    (-0.00502029   0.00634735)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.25 using 59 PHA bins.
# Reduced chi-squared =          1.259 for     55 degrees of freedom 
# Null hypothesis probability =   9.358877e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.890e-06   1.320e-07
25- 50  4.392e-06   1.936e-07
50-150  9.075e-06   5.279e-07
15-150  1.536e-05   7.843e-07

Peak spectrum fit

Power-law model
Time interval is from    6.420 sec. to    7.420 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00231     ( -0.165832   0.160744 )
Norm@50keV  : 5.37529E-02    ( -0.00553928   0.00550208 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.95 using 59 PHA bins.
# Reduced chi-squared =         0.9640 for     57 degrees of freedom 
# Null hypothesis probability =   5.524012e-01
 
Photon flux (15-150 keV)    in 1 sec: 6.18930 ( -0.650129  0.652225 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.80806e-07 ( -5.97721e-08  5.98061e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    6.420 sec. to    7.420 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.295371     ( -0.836678   0.695031 )
Epeak [keV] : 145.332      ( -48.4414 1871.47 )
Norm@50keV  : 0.107995    ( -0.0524192   0.127958 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.99 using 59 PHA bins.
# Reduced chi-squared =         0.9284 for     56 degrees of freedom 
# Null hypothesis probability =   6.273788e-01
 
Photon flux (15-150 keV)    in 1 sec: 6.07356 ( -0.66102  0.66375 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.74324e-07 ( -6.2129e-08  6.1587e-08 ) ergs/cm2
 
Band function
Time interval is from    6.420 sec. to    7.420 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.99999   ( -4.99999   -4.99999 )
beta        : -1.16835    ( -0.351998   0.209766 )
Epeak [keV] : 37.3193      ( -37.3193 9.61886 )
Norm@50keV   : 371.098    ( -36.6106   9.89955e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.09 using 59 PHA bins.
# Reduced chi-squared =         0.9834 for     55 degrees of freedom 
# Null hypothesis probability =   5.094462e-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]    : 22.6560  (-2.60986  3.13745)
R^2/D10^2   : 0.210255  (-0.0719108   0.102495)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.19 using 59 PHA bins.
# Reduced chi-squared =          1.073 for     57 degrees of freedom 
# Null hypothesis probability =   3.281673e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.970e-08   3.660e-09
25- 50  1.060e-07   1.680e-08
50-150  4.065e-07   6.035e-08
15-150  5.321e-07   6.780e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 25.8028       (-2.70517     2.70487)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          85.69 using 59 PHA bins.
# Reduced chi-squared =          1.503 for     57 degrees of freedom 
# Null hypothesis probability =   8.307050e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.427e-08   3.568e-08
25- 50  1.236e-07   6.126e-08
50-150  2.711e-07   1.347e-07
15-150  4.591e-07   2.445e-07
Double BB
R1^2/D10^2  : 2.42613E-02        (      )
kT2 [keV]   : 12.5289        (-7.45439      -12.6199)
R2^2/D10^2  : 0.759839    (-0.460671   7.81814)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.26 using 59 PHA bins.
#Fit statistic : Chi-Squared =          52.23 using 59 PHA bins.
#Fit statistic : Chi-Squared =          52.21 using 59 PHA bins.
# Reduced chi-squared =         0.9501 for     55 degrees of freedom 
# Reduced chi-squared =         0.9496 for     55 degrees of freedom 
# Reduced chi-squared =         0.9494 for     55 degrees of freedom 
# Null hypothesis probability =   5.801318e-01
# Null hypothesis probability =   5.811776e-01
# Null hypothesis probability =   5.817338e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.073e-08   1.771e-08
25- 50  1.178e-07   6.200e-08
50-150  4.200e-07   2.207e-07
15-150  5.685e-07   2.864e-07
Plot creation:
Mon Mar 24 00:48:32 EDT 2014