batgrbproduct Analysis for Trigger=583338

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Jan 10 10:08:43 EST 2014
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger583338/batgroup_hand_proc
======================================================================

  Trigger: 00583338      Segment: 000

  BAT Trigger Time: 410894334.016   [s; MET]
      Trigger Stop: 410894334.528   [s; MET]
               UTC: 2014-01-08T17:18:42.521660    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 325.177722335241   Dec: 58.7661610684908  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.2
     Image Trigger?:     NO
     Rate S/N Ratio:     16.0312195418814  [ if not an image trigger ]
     Image S/N Ratio:    9.2

  Flight Position:   [ source = BAT ]
    RA: 325.177722335241   Dec: 58.7661610684908  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 325.12615565405   Dec: 58.7483580195235  [deg; J2000]  
        { 21h 40m 30.3s , +58d 44' 54.1" }
         +/- 0.689966927917788 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.212485665517042 [arcmin] (formal 1-sigma fit error)
    SNR: 51.6849026337537
 
  Angular difference between Flight and Ground position is 1.927754 arcmin
 
  Partial Coding Fraction: 0.7109375    [ including projection effects ]

  Duration
     T90: 93.9799999594688 +/- 3.25220719968259
        Measured from: -1.34799998998642
                   to: 92.6319999694824     [s; relative to TRIGTIME]
     T50: 79.7359999418259 +/- 0.280028589158328
        Measured from: 6.43600004911423
                   to: 86.1719999909401     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 6.48800003528595     
                   to: 7.48800003528595     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -24.9079999923706     
                   to: 103.260000050068     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     3.484017   4.322648   3.050717   0.683880
           0.076755   0.076857   0.067181   0.055832 [error]
 Peak      0.196762   0.265986   0.223497   0.047004
           0.010662   0.011563   0.010794   0.007361 [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 1.08e-06 1.84e-06 2.40e-06 6.33e-06 7.04e-06 1.16e-05   erg/cm2
              Error 5.28e-08 5.10e-08 7.29e-08 4.46e-07 1.75e-07 4.82e-07   erg/cm2
Peak flux Power-law 1.98e+00 2.00e+00 1.43e+00 1.62e+00 6.05e+00 7.03e+00   ph/cm2/s
              Error 1.72e-01 1.06e-01 8.84e-02 2.08e-01 3.02e-01 3.46e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.04e-06 1.86e-06 2.43e-06 5.19e-06 6.97e-06 1.05e-05   erg/cm2
              Error 6.58e-08 5.46e-08 8.04e-08 1.23e-06 2.02e-07 1.28e-06   erg/cm2
Peak flux Cutoff-PL 1.85e+00 2.06e+00 1.47e+00 1.14e+00 5.95e+00 6.52e+00   ph/cm2/s
              Error 2.13e-01 1.21e-01 1.01e-01 4.89e-01 3.17e-01 5.36e-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 6.60e+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    1.618    0.047    -      -           5.89e-03 1.41e-04   35.800 57
CPL   1.471    0.182     195.5  -57.1      6.88e-03 1.31e-03   34.060 56
 
The chi2 of BB fit is Chi-Squared Chi-Squared which shows a significant improvement in the fit over a PL.
Check the BB fit.
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.489    0.086    -      -           4.86e-02 2.41e-03   53.640 57
CPL   1.159    0.345     132.5 1697.2      7.05e-02 2.77e-02   50.800 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: 93.440000 sec.
T50 in the 50-300 keV band: 79.488000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  128.168  -24.908  103.260
T90    93.980   -1.348   92.632
T50    79.736    6.436   86.172
Peak    1.000    6.488    7.488

Image

Pre-slew 15.0-350.0 keV image (Event data)

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  325.1262    58.7484   0.0037    25.2360   147.7409         4.9225809     51.685 TRIG_00583338                 
 
Foreground time interval of the image:
-24.908  11.485 (delta_t =  36.393 [sec])
Background time interval of the image:
-239.016 -24.908 (delta_t = 214.108 [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  -24.908 sec. to  103.260 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.61803     ( -0.0472305   0.0473237 )
Norm@50keV  : 5.88715E-03    ( -0.00014108   0.000141053 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          35.80 using 59 PHA bins.
# Reduced chi-squared =         0.6280 for     57 degrees of freedom 
# Null hypothesis probability =   9.874609e-01
 
Photon flux (15-150 keV)    in 128.2 sec: 0.760813 ( -0.0207816  0.020867 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.04338e-06 ( -1.7539e-07  1.75597e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -24.908 sec. to  103.260 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.47082     ( -0.197062   0.167934 )
Epeak [keV] : 195.531      ( -81.4192 -195.531 )
Norm@50keV  : 6.87810E-03    ( -0.00106089   0.00155047 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          34.06 using 59 PHA bins.
# Reduced chi-squared =         0.6081 for     56 degrees of freedom 
# Null hypothesis probability =   9.909901e-01
 
Photon flux (15-150 keV)    in 128.2 sec: 0.751056 ( -0.023905  0.024055 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.96886e-06 ( -2.02107e-07  2.01107e-07 ) ergs/cm2
 
Band function
Time interval is from  -24.908 sec. to  103.260 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.27035   ( 1.2099   0.682867 )
beta        : -1.69645    ( 1.69634   0.0915236 )
Epeak [keV] : 93.8053      ( -54.84 -85.3771 )
Norm@50keV   : 8.93479E-03    ( -0.00285853   0.00477011 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          33.05 using 59 PHA bins.
# Reduced chi-squared =         0.6010 for     55 degrees of freedom 
# Null hypothesis probability =   9.917001e-01
 
Photon flux (15-150 keV)    in 128.2 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]    : 15.6252  (  )
R^2/D10^2   : 6.90593E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         380.46 using 59 PHA bins.
# Reduced chi-squared =         6.6747 for     57 degrees of freedom 
# Null hypothesis probability =   2.361985e-49
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.492e-07   2.256e-08
25- 50  1.852e-06   5.961e-08
50-150  3.131e-06   1.346e-07
15-150  5.431e-06   1.474e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 189.806       (-24.0406      -188.285)
Norm        : 3.03994       (-0.0841678     0.090893)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          36.85 using 59 PHA bins.
# Reduced chi-squared =         0.6464 for     57 degrees of freedom 
# Null hypothesis probability =   9.824381e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.766e-07   4.750e-08
25- 50  1.868e-06   1.154e-07
50-150  4.029e-06   9.134e-07
15-150  6.873e-06   9.666e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.87499        (-0.755671      0.785762)
R1^2/D10^2  : 0.532366        (-0.141395      0.218328)
kT2 [keV]   : 28.7129        (-2.99792      4.05697)
R2^2/D10^2  : 6.15287E-03    (-0.00229277   0.00309509)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.43 using 59 PHA bins.
# Reduced chi-squared =         0.9168 for     55 degrees of freedom 
# Null hypothesis probability =   6.498163e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.608e-07   7.589e-08
25- 50  1.920e-06   9.743e-08
50-150  4.064e-06   3.372e-07
15-150  6.845e-06   4.269e-07

Peak spectrum fit

Power-law model
Time interval is from    6.488 sec. to    7.488 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.48922     ( -0.0858266   0.086513 )
Norm@50keV  : 4.85863E-02    ( -0.00241258   0.00240413 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.64 using 59 PHA bins.
# Reduced chi-squared =         0.9411 for     57 degrees of freedom 
# Null hypothesis probability =   6.017429e-01
 
Photon flux (15-150 keV)    in 1 sec: 6.04807 ( -0.302196  0.302547 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.61736e-07 ( -2.50722e-08  2.51771e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    6.488 sec. to    7.488 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.15860     ( -0.361052   0.32878 )
Epeak [keV] : 132.534      ( -43.9647 3350.39 )
Norm@50keV  : 7.04764E-02    ( -0.0212948   0.0341707 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.80 using 59 PHA bins.
# Reduced chi-squared =         0.9071 for     56 degrees of freedom 
# Null hypothesis probability =   6.715423e-01
 
Photon flux (15-150 keV)    in 1 sec: 5.95042 ( -0.31706  0.31725 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.52304e-07 ( -2.7185e-08  2.7094e-08 ) ergs/cm2
 
Band function
Time interval is from    6.488 sec. to    7.488 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.15314   ( -0.216323   1.05014 )
beta        : -2.00512    ( 2.01955   0.553745 )
Epeak [keV] : 130.673      ( -102.371 370.759 )
Norm@50keV   : 7.09631E-02    ( -0.0214509   0.339724 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.80 using 59 PHA bins.
# Reduced chi-squared =         0.9236 for     55 degrees of freedom 
# Null hypothesis probability =   6.358928e-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]    : 15.8277  (  )
R^2/D10^2   : 0.570830  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         137.31 using 59 PHA bins.
# Reduced chi-squared =         2.4090 for     57 degrees of freedom 
# Null hypothesis probability =   1.409065e-08
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.964e-08   2.780e-09
25- 50  1.236e-07   7.800e-09
50-150  2.154e-07   2.105e-08
15-150  3.686e-07   2.225e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 24.8045       (-1.20114     1.20113)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.12 using 59 PHA bins.
# Reduced chi-squared =         0.9319 for     57 degrees of freedom 
# Null hypothesis probability =   6.213983e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.177e-08   3.655e-09
25- 50  1.188e-07   6.300e-09
50-150  2.606e-07   1.470e-08
15-150  4.412e-07   2.665e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.24546        (-1.10485      1.35182)
R1^2/D10^2  : 8.48033        (-4.13177      9.12151)
kT2 [keV]   : 23.8495        (-2.90907      4.33572)
R2^2/D10^2  : 0.113148    (-0.052463   0.0717597)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.98 using 59 PHA bins.
# Reduced chi-squared =         0.9451 for     55 degrees of freedom 
# Null hypothesis probability =   5.907871e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.791e-08   1.218e-08
25- 50  1.139e-07   1.537e-08
50-150  2.743e-07   4.310e-08
15-150  4.461e-07   5.850e-08
Plot creation:
Fri Jan 10 10:57:20 EST 2014