batgrbproduct Analysis for Trigger=689353

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Jun  7 09:06:24 EDT 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger689353/batgroup_hand_proc
======================================================================

  Trigger: 00689353      Segment: 000

  BAT Trigger Time: 486909480   [s; MET]
      Trigger Stop: 486909824   [s; MET]
               UTC: 2016-06-06T12:37:43.623220    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 266.41131583894   Dec: -29.0071154363649  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    6.46
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    6.46

  Flight Position:   [ source = BAT ]
    RA: 266.41131583894   Dec: -29.0071154363649  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 266.506623190176   Dec: -29.0631422148877  [deg; J2000]  
        { 17h 46m 01.6s , -29d 03' 47.3" }
         +/- 3.66962132716753 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.06421994498229 [arcmin] (formal 1-sigma fit error)
    SNR: 4.7480643098846
 
  Angular difference between Flight and Ground position is 6.024782 arcmin
 
  Partial Coding Fraction: 0.9375    [ including projection effects ]

  Duration
     T90: 344 +/- 
        Measured from: 0
                   to: 344     [s; relative to TRIGTIME]
     T50: 344 +/- 
        Measured from: 0
                   to: 344     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 344 second)
        Measured from: 0     
                   to: 344     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 344     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.438836   0.544435   0.177119   0.182039
           0.120348   0.108485   0.090913   0.076876 [error]
 Peak      0.438836   0.544435   0.177119   0.182039
           0.120348   0.108485   0.090913   0.076876 [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 1.42e-07 1.93e-07 1.93e-07 3.49e-07 6.41e-07 8.77e-07   erg/cm2
              Error 4.91e-08 4.79e-08 8.50e-08 3.18e-07 1.95e-07 4.11e-07   erg/cm2
Peak flux Power-law 1.35e-02 1.01e-02 5.05e-03 3.61e-03 3.03e-02 3.22e-02   ph/cm2/s
              Error 4.75e-03 2.48e-03 2.15e-03 3.03e-03 7.41e-03 7.99e-03   ph/cm2/s
 
Fluence   Cutoff-PL 1.43e-07 1.93e-07 1.92e-07 2.95e-07 6.39e-07 8.12e-07   erg/cm2
              Error 4.99e-08 7.76e-08 -------- 3.79e-07 2.32e-07 4.79e-07   erg/cm2
Peak flux Cutoff-PL 1.35e-02 1.01e-02 5.03e-03 3.54e-03 3.03e-02 3.22e-02   ph/cm2/s
              Error 4.88e-03 3.61e-03 3.02e-03 3.70e-03 7.40e-03 9.11e-03   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    2.001    0.495    -      -           2.02e-04 6.49e-05   54.330 57
CPL   2.072    3.096      36.7    0.0      1.83e-04 0.00e+00   54.310 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    2.001    0.495    -      -           2.02e-04 6.49e-05   54.330 57
CPL   2.072    3.096      36.7    0.0      1.83e-04 0.00e+00   54.310 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  344.000    0.000  344.000
T90   344.000    0.000  344.000
T50   344.000    0.000  344.000
Peak  344.000    0.000  344.000

Image

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

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  266.5066   -29.0631   0.0407    13.4311    40.8327         1.4318084      4.748 TRIG_00689353                 
 
Foreground time interval of the image:
  0.000 344.000 (delta_t = 344.000 [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  344.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.00050     ( -0.466882   0.523956 )
Norm@50keV  : 2.02051E-04    ( -6.66948e-05   6.31712e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.33 using 59 PHA bins.
# Reduced chi-squared =         0.9531 for     57 degrees of freedom 
# Null hypothesis probability =   5.759566e-01
 
Photon flux (15-150 keV)    in 344 sec: 3.03146E-02 ( -0.00740847  0.00741043 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.40986e-07 ( -1.88594e-07  2.0051e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to  344.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.07246     ( -5.35182   0.840782 )
Epeak [keV] : 36.6634      (   )
Norm@50keV  : 1.82809E-04    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.31 using 59 PHA bins.
# Reduced chi-squared =         0.9699 for     56 degrees of freedom 
# Null hypothesis probability =   5.388933e-01
 
Photon flux (15-150 keV)    in 344 sec: 3.03126E-02 ( -0.0074082  0.0073962 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.39186e-07 ( -2.63212e-07  1.9983e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to  344.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.00301   ( 1.20412   1.20412 )
beta        : -2.33481    ( 2.28712   0.722281 )
Epeak [keV] : 35.1933      ( -35.6449 73.4232 )
Norm@50keV   : 8.62002E-04    ( -0.000562403   107.588 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.95 using 59 PHA bins.
# Reduced chi-squared =         0.9809 for     55 degrees of freedom 
# Null hypothesis probability =   5.147752e-01
 
Photon flux (15-150 keV)    in 344 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]    : 8.99229  (-2.0236  2.73104)
R^2/D10^2   : 2.13170E-02  (-0.0138549   0.036705)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.92 using 59 PHA bins.
# Reduced chi-squared =         0.9811 for     57 degrees of freedom 
# Null hypothesis probability =   5.154828e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.154e-07   6.926e-08
25- 50  2.449e-07   1.308e-07
50-150  9.320e-08   6.422e-08
15-150  4.535e-07   2.127e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 60.2823       (-31.3541      -60.2784)
Norm        : 0.157940       (-0.0561095     0.0969868)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.51 using 59 PHA bins.
# Reduced chi-squared =         0.9562 for     57 degrees of freedom 
# Null hypothesis probability =   5.692083e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.367e-07   4.947e-08
25- 50  2.083e-07   9.859e-08
50-150  2.379e-07   1.738e-07
15-150  5.828e-07   3.160e-07
Double BB
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.82 using 59 PHA bins.
#Fit statistic : Chi-Squared =          52.08 using 59 PHA bins.
#Fit statistic : Chi-Squared =          52.06 using 59 PHA bins.
#Fit statistic : Chi-Squared =          52.05 using 59 PHA bins.
# Reduced chi-squared =         0.9967 for     55 degrees of freedom 
# Reduced chi-squared =         0.9470 for     55 degrees of freedom 
# Reduced chi-squared =         0.9465 for     55 degrees of freedom 
# Reduced chi-squared =         0.9463 for     55 degrees of freedom 
# Null hypothesis probability =   4.814301e-01
# Null hypothesis probability =   5.868050e-01
# Null hypothesis probability =   5.877353e-01
# Null hypothesis probability =   5.881564e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.327e-07   6.414e-08
25- 50  2.274e-07   1.361e-07
50-150  1.222e-07   8.227e-08
15-150  4.824e-07   2.690e-07

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to  344.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.00050     ( -0.466882   0.523956 )
Norm@50keV  : 2.02051E-04    ( -6.66948e-05   6.31712e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.33 using 59 PHA bins.
# Reduced chi-squared =         0.9531 for     57 degrees of freedom 
# Null hypothesis probability =   5.759566e-01
 
Photon flux (15-150 keV)    in 344 sec: 3.03146E-02 ( -0.00740847  0.00741043 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.40986e-07 ( -1.88594e-07  2.0051e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to  344.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.07246     ( -5.35182   0.840782 )
Epeak [keV] : 36.6634      (   )
Norm@50keV  : 1.82809E-04    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.31 using 59 PHA bins.
# Reduced chi-squared =         0.9699 for     56 degrees of freedom 
# Null hypothesis probability =   5.388933e-01
 
Photon flux (15-150 keV)    in 344 sec: 3.03126E-02 ( -0.0074082  0.0073962 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.39186e-07 ( -2.63212e-07  1.9983e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to  344.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.00301   ( 1.20412   1.20412 )
beta        : -2.33481    ( 2.28712   0.722281 )
Epeak [keV] : 35.1933      ( -35.6449 73.4232 )
Norm@50keV   : 8.62002E-04    ( -0.000562403   102.995 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.95 using 59 PHA bins.
# Reduced chi-squared =         0.9809 for     55 degrees of freedom 
# Null hypothesis probability =   5.147752e-01
 
Photon flux (15-150 keV)    in 344 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]    : 8.99229  (-2.0236  2.73104)
R^2/D10^2   : 2.13170E-02  (-0.0138549   0.036705)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.92 using 59 PHA bins.
# Reduced chi-squared =         0.9811 for     57 degrees of freedom 
# Null hypothesis probability =   5.154828e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.154e-07   5.334e-08
25- 50  2.449e-07   1.432e-07
50-150  9.320e-08   5.987e-08
15-150  4.535e-07   2.177e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 60.2823       (-31.3541      -60.2784)
Norm        : 0.157940       (-0.0561095     0.0969868)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.51 using 59 PHA bins.
# Reduced chi-squared =         0.9562 for     57 degrees of freedom 
# Null hypothesis probability =   5.692083e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.367e-07   5.399e-08
25- 50  2.083e-07   9.954e-08
50-150  2.379e-07   1.601e-07
15-150  5.828e-07   3.072e-07
Double BB
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.82 using 59 PHA bins.
#Fit statistic : Chi-Squared =          52.08 using 59 PHA bins.
#Fit statistic : Chi-Squared =          52.06 using 59 PHA bins.
#Fit statistic : Chi-Squared =          52.05 using 59 PHA bins.
# Reduced chi-squared =         0.9967 for     55 degrees of freedom 
# Reduced chi-squared =         0.9470 for     55 degrees of freedom 
# Reduced chi-squared =         0.9465 for     55 degrees of freedom 
# Reduced chi-squared =         0.9463 for     55 degrees of freedom 
# Null hypothesis probability =   4.814301e-01
# Null hypothesis probability =   5.868050e-01
# Null hypothesis probability =   5.877353e-01
# Null hypothesis probability =   5.881564e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.327e-07   6.741e-08
25- 50  2.274e-07   1.354e-07
50-150  1.222e-07   8.421e-08
15-150  4.824e-07   2.618e-07
Plot creation:
Tue Jun  7 10:01:29 EDT 2016