batgrbproduct analysis for trigger=866783

batgrbproduct Analysis for Trigger=866783

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Oct 14 06:56:16 EDT 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger866783/GCN5_download_cron
======================================================================

  Trigger: 00866783      Segment: 000

  BAT Trigger Time: 561091191.424   [s; MET]
      Trigger Stop: 561091193.472   [s; MET]
               UTC: 2018-10-13T02:39:29.679300    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 207.600644048683   Dec: 40.1787286370108  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.72
     Image Trigger?:     NO
     Rate S/N Ratio:     7.54983443527075  [ if not an image trigger ]
     Image S/N Ratio:    7.72

  Flight Position:   [ source = BAT ]
    RA: 207.600644048683   Dec: 40.1787286370108  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 207.660536864456   Dec: 40.1074362203746  [deg; J2000]  
        { 13h 50m 38.5s , +40d 06' 26.8" }
         +/- 3.25973320194414 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.52127239465195 [arcmin] (formal 1-sigma fit error)
    SNR: 5.62342823490508
 
  Angular difference between Flight and Ground position is 5.083671 arcmin
 
  Partial Coding Fraction: 0.8125    [ including projection effects ]

  Duration
     T90: 104.063999891281 +/- 53.5108130191833
        Measured from: 18.9440001249313
                   to: 123.008000016212     [s; relative to TRIGTIME]
     T50: 40.4479998350143 +/- 55.2431321897961
        Measured from: 20.9280000925064
                   to: 61.3759999275208     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 18.7960000038147     
                   to: 19.7960000038147     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 18.3680000305176     
                   to: 123.96799993515     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.181947   0.169896   0.179192   0.015057
           0.064613   0.066937   0.058071   0.050903 [error]
 Peak      0.010906   0.025200   0.019874   0.004810
           0.007209   0.007375   0.006492   0.005339 [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 5.60e-08 8.49e-08 9.64e-08 2.09e-07 3.00e-07 4.46e-07   erg/cm2
              Error 2.88e-08 3.02e-08 5.83e-08 2.93e-07 1.35e-07 3.32e-07   erg/cm2
Peak flux Power-law 1.74e-01 1.72e-01 1.19e-01 1.29e-01 5.16e-01 5.94e-01   ph/cm2/s
              Error 9.29e-02 6.04e-02 5.10e-02 1.12e-01 1.75e-01 2.03e-01   ph/cm2/s
 
Fluence   Cutoff-PL 5.47e-08 8.55e-08 9.82e-08 1.70e-07 2.99e-07 3.94e-07   erg/cm2
              Error 4.29e-08 3.40e-08 8.16e-08 2.92e-07 1.35e-07 3.35e-07   erg/cm2
Peak flux Cutoff-PL 1.38e-01 1.93e-01 1.31e-01 4.17e-02 4.94e-01 5.04e-01   ph/cm2/s
              Error 1.09e-01 7.64e-02 6.29e-02 1.19e-01 1.80e-01 2.21e-01   ph/cm2/s
 
Fluence        Band 5.10e-08 8.74e-08 1.03e-07 1.60e-07 3.03e-07 4.04e-07   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    1.816    0.750    -      -           3.08e-04 1.39e-04   58.430 57
CPL   1.593    1.562      95.7    0.0      3.99e-04 0.00e+00   58.440 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.534    0.572    -      -           4.10e-03 1.44e-03   52.490 57
CPL   0.239    3.089      67.7    0.0      1.85e-02 9.20e-01   51.600 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  105.600   18.368  123.968
T90   104.064   18.944  123.008
T50    40.448   20.928   61.376
Peak    1.000   18.796   19.796

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  207.6605 +40.1074 0.0342   25.1 -140.2       0.2364     5.6  TRIG_00866783       
------------------------------------------
 
Foreground time interval of the image:
 18.368  27.377 (delta_t =   9.009 [sec])
Background time interval of the image:
-105.123  18.368 (delta_t = 123.491 [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   18.368 sec. to  123.968 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.81562     ( -0.660137   0.839718 )
Norm@50keV  : 3.08369E-04    ( -0.000148074   0.000130646 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.43 using 59 PHA bins.
# Reduced chi-squared =          1.025 for     57 degrees of freedom 
# Null hypothesis probability =   4.225553e-01
 
Photon flux (15-150 keV)    in 105.6 sec: 4.27527E-02 ( -0.015141  0.0151413 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.99633e-07 ( -1.30734e-07  1.38724e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   18.368 sec. to  123.968 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.59261     ( -2.39502   0.729908 )
Epeak [keV] : 95.6502      (   )
Norm@50keV  : 3.98838E-04    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.44 using 59 PHA bins.
# Reduced chi-squared =          1.044 for     56 degrees of freedom 
# Null hypothesis probability =   3.858413e-01
 
Photon flux (15-150 keV)    in 105.6 sec: 4.26586E-02 ( -0.0151266  0.015192 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.99058e-07 ( -1.31662e-07  1.38518e-07 ) ergs/cm2
 
Band function
Time interval is from   18.368 sec. to  123.968 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.71986   ( -0.279766   2.10153 )
beta        : -9.37167    ( 9.37167   19.3717 )
Epeak [keV] : 161.737      ( -143.893 -161.276 )
Norm@50keV   : 3.43046E-04    ( -0.000121365   0.00462933 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.43 using 59 PHA bins.
# Reduced chi-squared =          1.062 for     55 degrees of freedom 
# Null hypothesis probability =   3.506161e-01
 
Photon flux (15-150 keV)    in 105.6 sec: 4.20791E-02 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.11957e-18 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 16.9335  (-9.59669  10.1416)
R^2/D10^2   : 3.01378E-03  (-0.00300177   0.0540378)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.01 using 59 PHA bins.
# Reduced chi-squared =          1.088 for     57 degrees of freedom 
# Null hypothesis probability =   3.020448e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.861e-08   1.215e-08
25- 50  8.206e-08   5.190e-08
50-150  1.678e-07   1.155e-07
15-150  2.685e-07   1.722e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 99.9153       (-99.9957      -99.9957)
Norm        : 0.188597       (-0.0764613     0.12702)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.63 using 59 PHA bins.
# Reduced chi-squared =          1.029 for     57 degrees of freedom 
# Null hypothesis probability =   4.155192e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.205e-08   3.357e-08
25- 50  8.999e-08   5.676e-08
50-150  1.458e-07   1.176e-07
15-150  2.878e-07   2.078e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.53205        (-2.09237      3.76042)
R1^2/D10^2  : 1.00157        (-0.967935      507.526)
kT2 [keV]   : 21.8334        (-8.38762      18.2536)
R2^2/D10^2  : 1.10517E-03    (-0.000959386   0.00466491)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.19 using 59 PHA bins.
# Reduced chi-squared =          1.022 for     55 degrees of freedom 
# Null hypothesis probability =   4.299188e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.124e-08   3.462e-08
25- 50  6.708e-08   3.737e-08
50-150  1.937e-07   1.322e-07
15-150  3.221e-07   1.834e-07

Peak spectrum fit

Power-law model
Time interval is from   18.796 sec. to   19.796 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.53380     ( -0.554787   0.588623 )
Norm@50keV  : 4.09591E-03    ( -0.00145272   0.0014181 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.49 using 59 PHA bins.
# Reduced chi-squared =         0.9208 for     57 degrees of freedom 
# Null hypothesis probability =   6.448049e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.516119 ( -0.175039  0.175665 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.86502e-08 ( -1.43283e-08  1.48145e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   18.796 sec. to   19.796 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.239385     ( -3.9697   2.20891 )
Epeak [keV] : 67.7027      ( -67.7029 -67.7029 )
Norm@50keV  : 1.85232E-02    ( -0.018523   1.82109 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.60 using 59 PHA bins.
# Reduced chi-squared =         0.9214 for     56 degrees of freedom 
# Null hypothesis probability =   6.420142e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.493844 ( -0.179996  0.180574 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.5955e-08 ( -1.41465e-08  1.56019e-08 ) ergs/cm2
 
Band function
Time interval is from   18.796 sec. to   19.796 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.246368   ( -1.72327   3.48954 )
beta        : -9.37167    ( 9.37167   19.3717 )
Epeak [keV] : 69.6672      ( -49.5759 215.54 )
Norm@50keV   : 1.78059E-02    ( -0.0177742   112.017 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.61 using 59 PHA bins.
# Reduced chi-squared =         0.9383 for     55 degrees of freedom 
# Null hypothesis probability =   6.051312e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.7485e-08 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 14.9568  (-4.86069  7.3062)
R^2/D10^2   : 6.20190E-02  (-0.0620182   0.184745)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.40 using 59 PHA bins.
# Reduced chi-squared =         0.9192 for     57 degrees of freedom 
# Null hypothesis probability =   6.482103e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.906e-09   1.889e-09
25- 50  1.152e-08   7.065e-09
50-150  1.751e-08   1.184e-08
15-150  3.193e-08   2.032e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 191.358       (-135.482      -189.344)
Norm        : 2.13392       (-0.712893     0.989999)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.10 using 59 PHA bins.
# Reduced chi-squared =         0.9140 for     57 degrees of freedom 
# Null hypothesis probability =   6.591751e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.342e-09   3.332e-09
25- 50  1.023e-08   6.205e-09
50-150  2.212e-08   1.332e-08
15-150  3.769e-08   2.264e-08
Double BB
# Reduced chi-squared =         0.9284 for     55 degrees of freedom 
# Reduced chi-squared =         0.9276 for     55 degrees of freedom 
# Reduced chi-squared =         0.9271 for     55 degrees of freedom 
# Reduced chi-squared =         0.9268 for     55 degrees of freedom 
# Null hypothesis probability =   6.077318e-01
# Null hypothesis probability =   6.086041e-01
# Null hypothesis probability =   6.142228e-01
# Null hypothesis probability =   6.182719e-01
# Null hypothesis probability =   6.226900e-01
# Null hypothesis probability =   6.257893e-01
# Null hypothesis probability =   6.275948e-01
# Null hypothesis probability =   6.285885e-01
# Null hypothesis probability =   6.291018e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.434e-09   2.720e-09
25- 50  1.081e-08   6.210e-09
50-150  2.055e-08   1.290e-08
15-150  3.579e-08   2.077e-08
Plot creation:
Sun Oct 14 07:01:16 EDT 2018