batgrbproduct analysis for trigger=809374

batgrbproduct Analysis for Trigger=809374

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Feb 11 10:57:24 EST 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger809374/GCN5_download_cron
======================================================================

  Trigger: 00809374      Segment: 000

  BAT Trigger Time: 539914176   [s; MET]
      Trigger Stop: 539914528   [s; MET]
               UTC: 2018-02-10T00:09:15.546880    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 299.747375379412   Dec: 35.0383948710055  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    7.69
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    7.69

  Flight Position:   [ source = BAT ]
    RA: 299.747375379412   Dec: 35.0383948710055  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 299.593931232359   Dec: 35.1960964487564  [deg; J2000]  
        { 19h 58m 22.5s , +35d 11' 45.9" }
         +/- 0.725988554091731 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.318683216386205 [arcmin] (formal 1-sigma fit error)
    SNR: 48.0607044145125
 
  Angular difference between Flight and Ground position is 12.093157 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 352 +/- 
        Measured from: 0
                   to: 352     [s; relative to TRIGTIME]
     T50: 352 +/- 
        Measured from: 0
                   to: 352     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 352 second)
        Measured from: 0     
                   to: 352     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 352     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     2.257941   2.256429   1.224745   0.174774
           0.110738   0.111734   0.094526   0.078554 [error]
 Peak      2.257941   2.256429   1.224745   0.174774
           0.110738   0.111734   0.094526   0.078554 [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 6.60e-07 9.06e-07 9.19e-07 1.69e-06 3.03e-06 4.18e-06   erg/cm2
              Error 6.04e-08 5.25e-08 9.17e-08 3.47e-07 2.06e-07 4.34e-07   erg/cm2
Peak flux Power-law 6.11e-02 4.63e-02 2.35e-02 1.71e-02 1.39e-01 1.48e-01   ph/cm2/s
              Error 5.71e-03 2.69e-03 2.26e-03 3.25e-03 8.24e-03 8.58e-03   ph/cm2/s
 
Fluence   Cutoff-PL 6.52e-07 9.17e-07 9.17e-07 1.38e-06 2.99e-06 3.87e-06   erg/cm2
              Error 5.14e-08 6.39e-08 9.43e-08 5.03e-07 1.86e-07 8.54e-07   erg/cm2
Peak flux Cutoff-PL 6.02e-02 4.68e-02 2.35e-02 1.45e-02 1.38e-01 1.45e-01   ph/cm2/s
              Error 6.47e-03 3.21e-03 2.30e-03 5.62e-03 8.83e-03 1.14e-02   ph/cm2/s
 
Fluence        Band 6.26e-07 9.36e-07 9.32e-07 1.67e-06 3.04e-06 4.17e-06   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    1.980    0.118    -      -           9.34e-04 6.61e-05   63.590 57
CPL   1.872    0.395      51.7   -1.1      1.07e-03 6.03e-04   63.400 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.980    0.118    -      -           9.34e-04 6.61e-05   63.590 57
CPL   1.872    0.395      51.7   -1.1      1.07e-03 6.03e-04   63.400 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  352.000    0.000  352.000
T90   352.000    0.000  352.000
T50   352.000    0.000  352.000
Peak  352.000    0.000  352.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  299.5939 +35.1961 0.0040    9.1  -18.5      13.1862    48.1  TRIG_00809374       
------------------------------------------
 
Foreground time interval of the image:
  0.000 352.000 (delta_t = 352.000 [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    0.000 sec. to  352.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.98047     ( -0.116258   0.119264 )
Norm@50keV  : 9.33876E-04    ( -6.65366e-05   6.56075e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.59 using 59 PHA bins.
# Reduced chi-squared =          1.116 for     57 degrees of freedom 
# Null hypothesis probability =   2.556404e-01
 
Photon flux (15-150 keV)    in 352 sec: 0.138838 ( -0.00822942  0.0082449 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.02859e-06 ( -2.04408e-07  2.06723e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to  352.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.87192     ( -0.461113   0.327955 )
Epeak [keV] : 51.6782      ( -49.5403 -51.6782 )
Norm@50keV  : 1.07277E-03    ( -0.000366145   0.000838864 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.40 using 59 PHA bins.
# Reduced chi-squared =          1.132 for     56 degrees of freedom 
# Null hypothesis probability =   2.316809e-01
 
Photon flux (15-150 keV)    in 352 sec: 0.137946 ( -0.008877  0.008791 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.99314e-06 ( -2.47586e-07  1.23805e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to  352.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.418047   ( 1.03022   1.03022 )
beta        : -2.04398    ( 2.03431   0.146609 )
Epeak [keV] : 24.5457      ( -26.6731 60.6995 )
Norm@50keV   : 6.04437E-02    ( -0.05982   150.072 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.43 using 59 PHA bins.
# Reduced chi-squared =          1.135 for     55 degrees of freedom 
# Null hypothesis probability =   2.291205e-01
 
Photon flux (15-150 keV)    in 352 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.0447e-06 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 10.3796  (  )
R^2/D10^2   : 5.31127E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         140.07 using 59 PHA bins.
# Reduced chi-squared =         2.4574 for     57 degrees of freedom 
# Null hypothesis probability =   6.048058e-09
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.150e-07   4.435e-08
25- 50  1.087e-06   7.568e-08
50-150  6.311e-07   1.093e-07
15-150  2.133e-06   1.624e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 72.9323       (-13.4869      18.6651)
Norm        : 0.659926       (-0.064688     0.0745136)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.32 using 59 PHA bins.
# Reduced chi-squared =          1.181 for     57 degrees of freedom 
# Null hypothesis probability =   1.647432e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.984e-07   5.280e-08
25- 50  9.625e-07   5.579e-08
50-150  1.274e-06   1.837e-07
15-150  2.835e-06   2.288e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.40860        (-0.807796      0.913528)
R1^2/D10^2  : 0.483639        (-0.217401      0.450777)
kT2 [keV]   : 20.0683        (-3.22152      4.78553)
R2^2/D10^2  : 3.30191E-03    (-0.00183894   0.00329132)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.29 using 59 PHA bins.
# Reduced chi-squared =          1.132 for     55 degrees of freedom 
# Null hypothesis probability =   2.329846e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.513e-07   1.334e-07
25- 50  8.926e-07   1.427e-07
50-150  1.370e-06   3.582e-07
15-150  2.914e-06   6.274e-07

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to  352.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.98047     ( -0.116258   0.119264 )
Norm@50keV  : 9.33876E-04    ( -6.65366e-05   6.56075e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.59 using 59 PHA bins.
# Reduced chi-squared =          1.116 for     57 degrees of freedom 
# Null hypothesis probability =   2.556404e-01
 
Photon flux (15-150 keV)    in 352 sec: 0.138838 ( -0.00822942  0.0082449 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.02859e-06 ( -2.04408e-07  2.06723e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to  352.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.87192     ( -0.461113   0.327955 )
Epeak [keV] : 51.6782      ( -49.54 -51.6782 )
Norm@50keV  : 1.07277E-03    ( -0.000366145   0.000838864 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.40 using 59 PHA bins.
# Reduced chi-squared =          1.132 for     56 degrees of freedom 
# Null hypothesis probability =   2.316809e-01
 
Photon flux (15-150 keV)    in 352 sec: 0.137946 ( -0.008877  0.008791 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.99314e-06 ( -2.47586e-07  1.23805e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to  352.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.418047   ( 1.03022   1.03022 )
beta        : -2.04398    ( 2.03431   0.146609 )
Epeak [keV] : 24.5457      ( -26.6731 60.6995 )
Norm@50keV   : 6.04437E-02    ( -0.05982   150.08 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.43 using 59 PHA bins.
# Reduced chi-squared =          1.135 for     55 degrees of freedom 
# Null hypothesis probability =   2.291205e-01
 
Photon flux (15-150 keV)    in 352 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.0447e-06 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 10.3796  (  )
R^2/D10^2   : 5.31127E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         140.07 using 59 PHA bins.
# Reduced chi-squared =         2.4574 for     57 degrees of freedom 
# Null hypothesis probability =   6.048058e-09
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.150e-07   4.523e-08
25- 50  1.087e-06   7.146e-08
50-150  6.311e-07   1.045e-07
15-150  2.133e-06   1.478e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 72.9323       (-13.4869      18.6651)
Norm        : 0.659926       (-0.064688     0.0745136)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.32 using 59 PHA bins.
# Reduced chi-squared =          1.181 for     57 degrees of freedom 
# Null hypothesis probability =   1.647432e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.984e-07   5.174e-08
25- 50  9.625e-07   6.266e-08
50-150  1.274e-06   1.950e-07
15-150  2.835e-06   2.258e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.40860        (-0.807796      0.913528)
R1^2/D10^2  : 0.483639        (-0.217401      0.450777)
kT2 [keV]   : 20.0683        (-3.22152      4.78553)
R2^2/D10^2  : 3.30191E-03    (-0.00183894   0.00329132)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.29 using 59 PHA bins.
# Reduced chi-squared =          1.132 for     55 degrees of freedom 
# Null hypothesis probability =   2.329846e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.513e-07   1.331e-07
25- 50  8.926e-07   1.514e-07
50-150  1.370e-06   4.161e-07
15-150  2.914e-06   5.537e-07
Plot creation:
Sun Feb 11 11:03:41 EST 2018