batgrbproduct Analysis for Trigger=659734

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Oct 16 21:33:43 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger659734/GCN5_download_cron
======================================================================

  Trigger: 00659734      Segment: 000

  BAT Trigger Time: 466651574.528   [s; MET]
      Trigger Stop: 466651578.624   [s; MET]
               UTC: 2015-10-16T01:25:59.250180    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 267.59991952892   Dec: -29.0181886127176  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    6.9
     Image Trigger?:     NO
     Rate S/N Ratio:     12.8062484748657  [ if not an image trigger ]
     Image S/N Ratio:    6.9

  Flight Position:   [ source = BAT ]
    RA: 267.59991952892   Dec: -29.0181886127176  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 267.619317359583   Dec: -29.0274764060997  [deg; J2000]  
        { 17h 50m 28.6s , -29d 01' 38.9" }
         +/- 2.50710171586695 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.29516937941454 [arcmin] (formal 1-sigma fit error)
    SNR: 8.1822497451094
 
  Angular difference between Flight and Ground position is 1.160301 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 13 +/- 5
        Measured from: -3.52799987792969
                   to: 9.47200012207031     [s; relative to TRIGTIME]
     T50: 5 +/- 2.82842712474619
        Measured from: 0.472000122070312
                   to: 5.47200012207031     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.472000002861023     
                   to: 1.47200000286102     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -3.52799999713898     
                   to: 10.472000002861     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.237320   0.067628   0.021965   0.010173
           0.025222   0.022006   0.018459   0.016590 [error]
 Peak      0.042696   0.005251   0.002787   0.004022
           0.006923   0.005889   0.004903   0.004466 [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 6.79e-08 2.91e-08 7.40e-09 2.31e-09 1.06e-07 1.07e-07   erg/cm2
              Error 1.28e-08 1.21e-08 6.98e-09 4.51e-09 2.54e-08 2.69e-08   erg/cm2
Peak flux Power-law 3.89e-01 8.91e-02 1.04e-02 1.36e-03 4.89e-01 4.90e-01   ph/cm2/s
              Error 1.03e-01 4.92e-02 1.42e-02 3.50e-03 1.39e-01 1.39e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.79e-08 2.89e-08 7.26e-09 2.23e-09 1.05e-07 1.06e-07   erg/cm2
              Error 1.27e-08 1.25e-08 8.21e-09 4.47e-09 2.24e-08 2.72e-08   erg/cm2
Peak flux Cutoff-PL 4.47e-01 5.57e-02 2.15e-05 1.18e-13 5.02e-01 5.02e-01   ph/cm2/s
              Error 1.21e-01 6.16e-02 4.97e-03 0.00e+00 1.29e-01 1.29e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band -------- -------- -------- -------- -------- --------   ph/cm2/s
              Error -------- -------- -------- -------- -------- --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    3.974    0.775    -      -           3.49e-04 2.50e-04   63.090 57
CPL   1.000    0.000      50.0    0.0      3.21e-03 0.00e+00  102.460 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    4.094    0.982    -      -           7.30e-04 8.16e-04   52.100 57
CPL   1.000    0.000      50.0    0.0      6.94e-03 0.00e+00   76.060 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   14.000   -3.528   10.472
T90    13.000   -3.528    9.472
T50     5.000    0.472    5.472
Peak    1.000    0.472    1.472

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  267.6193 -29.0275 0.0234    1.1   97.2       0.3454     8.2  TRIG_00659734       
------------------------------------------
 
Foreground time interval of the image:
 -3.528  10.472 (delta_t =  14.000 [sec])
Background time interval of the image:
-215.127  -3.528 (delta_t = 211.599 [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   -3.528 sec. to   10.472 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.97424     ( -0.684266   0.865124 )
Norm@50keV  : 3.49359E-04    ( -0.000204173   0.000296002 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.09 using 59 PHA bins.
# Reduced chi-squared =          1.107 for     57 degrees of freedom 
# Null hypothesis probability =   2.700055e-01
 
Photon flux (15-150 keV)    in 14 sec: 0.210656 ( -0.0391956  0.03941 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.05746e-07 ( -2.40682e-08  2.66861e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -3.528 sec. to   10.472 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00000     (     )
Epeak [keV] : 50.0000      (   )
Norm@50keV  : 3.20897E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         102.46 using 59 PHA bins.
# Reduced chi-squared =         1.8296 for     56 degrees of freedom 
# Null hypothesis probability =   1.512810e-04
 
Photon flux (15-150 keV)    in 14 sec: 0.210286 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.05454e-07 ( -2.52358e-08  1.95135e-08 ) ergs/cm2
 
Band function
Time interval is from   -3.528 sec. to   10.472 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -9.91851   ( 9.91851   9.91851 )
beta        : -3.97424    ( -0.864519   0.683671 )
Epeak [keV] : 1.64262      ( -1.64262 -1.64262 )
Norm@50keV   : 4.74831E-02    ( -0.02775   0.0402308 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.09 using 59 PHA bins.
# Reduced chi-squared =          1.147 for     55 degrees of freedom 
# Null hypothesis probability =   2.121592e-01
 
Photon flux (15-150 keV)    in 14 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]    : 3.70073  (-0.764753  0.925649)
R^2/D10^2   : 8.12347  (-8.12645   23.3433)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.33 using 59 PHA bins.
# Reduced chi-squared =          1.164 for     57 degrees of freedom 
# Null hypothesis probability =   1.861510e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.006e-08   3.912e-08
25- 50  2.014e-08   1.225e-08
50-150  1.502e-10   1.532e-10
15-150  9.035e-08   4.819e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 8.98998       (-2.86027      3.89029)
Norm        : 8.96654       (-4.84351     14.2007)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.17 using 59 PHA bins.
# Reduced chi-squared =          1.126 for     57 degrees of freedom 
# Null hypothesis probability =   2.397765e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.927e-08   2.668e-08
25- 50  2.570e-08   1.306e-08
50-150  1.302e-09   1.259e-09
15-150  9.627e-08   3.912e-08
Double BB
# Reduced chi-squared =          1.145 for     55 degrees of freedom 
# Reduced chi-squared =          1.145 for     55 degrees of freedom 
# Null hypothesis probability =   2.052029e-01
# Null hypothesis probability =   2.108816e-01
# Null hypothesis probability =   2.114550e-01
# Null hypothesis probability =   2.120637e-01
# Null hypothesis probability =   2.126439e-01
# Null hypothesis probability =   2.131847e-01
# Null hypothesis probability =   2.136761e-01
# Null hypothesis probability =   2.141099e-01
# Null hypothesis probability =   2.144795e-01
# Null hypothesis probability =   2.147797e-01
# Null hypothesis probability =   2.152086e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.012e-08   3.865e-08
25- 50  2.088e-08   1.205e-08
50-150  4.679e-08   2.794e-08
15-150  1.378e-07   6.844e-08

Peak spectrum fit

Power-law model
Time interval is from    0.472 sec. to    1.472 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 4.09439     ( -0.848089   1.11496 )
Norm@50keV  : 7.30351E-04    ( -0.000731236   0.000900681 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.10 using 59 PHA bins.
# Reduced chi-squared =         0.9140 for     57 degrees of freedom 
# Null hypothesis probability =   6.591769e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.489362 ( -0.137881  0.139764 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.72507e-08 ( -5.68286e-09  6.53433e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.472 sec. to    1.472 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00000     (     )
Epeak [keV] : 50.0000      (   )
Norm@50keV  : 6.94231E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          76.06 using 59 PHA bins.
# Reduced chi-squared =          1.358 for     56 degrees of freedom 
# Null hypothesis probability =   3.845715e-02
 
Photon flux (15-150 keV)    in 1 sec: 0.502288 ( -0.128469  0.130472 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.59015e-08 ( -4.3759e-09  4.7349e-09 ) ergs/cm2
 
Band function
Time interval is from    0.472 sec. to    1.472 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.01036   ( 1.77697   1.77697 )
beta        : -10.0000    ( 9.99884   0.000250123 )
Epeak [keV] : 15.7207      ( -3.17627 5.2671 )
Norm@50keV   : 3353.46    ( -3353.69   29234.6 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.26 using 59 PHA bins.
# Reduced chi-squared =         0.8956 for     55 degrees of freedom 
# Null hypothesis probability =   6.927347e-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]    : 3.52622  (-0.757412  0.931299)
R^2/D10^2   : 27.0831  (-27.0831   83.6557)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.45 using 59 PHA bins.
# Reduced chi-squared =         0.8676 for     57 degrees of freedom 
# Null hypothesis probability =   7.509053e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.292e-08   7.405e-09
25- 50  3.206e-09   2.097e-09
50-150  1.729e-11   1.931e-11
15-150  1.614e-08   9.180e-09
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 8.01293       (-2.72823      4.59323)
Norm        : 28.3076       (-17.1777     56.0136)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.38 using 59 PHA bins.
# Reduced chi-squared =         0.8838 for     57 degrees of freedom 
# Null hypothesis probability =   7.200139e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.230e-08   7.190e-09
25- 50  3.828e-09   2.489e-09
50-150  1.356e-10   1.521e-10
15-150  1.626e-08   9.225e-09
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.52017        (-0.779125      0.884887)
R1^2/D10^2  : 27.1669        (-16.6625      78.8131)
kT2 [keV]   : 199.363        (-199.363      -199.363)
R2^2/D10^2  : 2.64453E-05    (-2.73982e-05   73.9698)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.22 using 59 PHA bins.
# Reduced chi-squared =         0.8768 for     55 degrees of freedom 
# Null hypothesis probability =   7.292091e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.288e-08   7.690e-09
25- 50  3.456e-09   2.141e-09
50-150  7.019e-09   2.375e-11
15-150  2.335e-08   9.950e-09
Plot creation:
Fri Oct 16 21:38:44 EDT 2015