batgrbproduct analysis for trigger=873186

batgrbproduct Analysis for Trigger=873186

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat Nov 24 07:52:18 EST 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger873186/GCN5_download_cron
======================================================================

  Trigger: 00873186      Segment: 000

  BAT Trigger Time: 564644005.056   [s; MET]
      Trigger Stop: 564644005.312   [s; MET]
               UTC: 2018-11-23T05:33:03.090320    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 184.347946931295   Dec: 14.5895052083792  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.8
     Image Trigger?:     NO
     Rate S/N Ratio:     33.1058907144937  [ if not an image trigger ]
     Image S/N Ratio:    8.8

  Flight Position:   [ source = BAT ]
    RA: 184.347946931295   Dec: 14.5895052083792  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 184.354051373542   Dec: 14.6192269103367  [deg; J2000]  
        { 12h 17m 25.0s , +14d 37' 09.2" }
         +/- 1.89500379364414 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.846026751967594 [arcmin] (formal 1-sigma fit error)
    SNR: 12.2048528065837
 
  Angular difference between Flight and Ground position is 1.818183 arcmin
 
  Partial Coding Fraction: 0.59375    [ including projection effects ]

  Duration
     T90: 0.259999990463257 +/- 0.0417612136127632
        Measured from: 0.0400000810623169
                   to: 0.300000071525574     [s; relative to TRIGTIME]
     T50: 0.123999953269958 +/- 0.0481663422800704
        Measured from: 0.0880001783370972
                   to: 0.212000131607056     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.325999975204468     
                   to: 0.674000024795532     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.0320000648498535     
                   to: 0.312000036239624     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.024489   0.043498   0.063709   0.031771
           0.006374   0.007764   0.008040   0.006949 [error]
 Peak      0.030645   0.036117   0.075337   0.029138
           0.009979   0.011160   0.010689   0.009143 [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 6.26e-09 1.87e-08 4.55e-08 3.09e-07 1.23e-07 3.80e-07   erg/cm2
              Error 2.19e-09 3.85e-09 7.06e-09 1.20e-07 1.97e-08 1.22e-07   erg/cm2
Peak flux Power-law 2.00e-01 3.39e-01 4.37e-01 1.14e+00 1.29e+00 2.11e+00   ph/cm2/s
              Error 1.02e-01 1.04e-01 8.07e-02 5.14e-01 2.58e-01 4.90e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.38e-09 1.89e-08 4.55e-08 3.01e-07 1.23e-07 3.70e-07   erg/cm2
              Error 2.24e-09 -------- 7.50e-09 1.63e-07 1.96e-08 1.63e-07   erg/cm2
Peak flux Cutoff-PL 2.02e-01 3.41e-01 4.37e-01 1.12e+00 1.29e+00 2.10e+00   ph/cm2/s
              Error 1.14e-01 -------- 8.08e-02 6.40e-01 2.56e-01 6.44e-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    0.715    0.283    -      -           3.63e-02 5.80e-03   71.770 57
CPL   0.707    0.433    10000.0    0.0      3.66e-02 5.64e-03   71.790 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.631    0.388    -      -           1.11e-02 2.45e-03   66.500 57
CPL   0.621    0.916    10000.0    0.0      1.12e-02 -4.31e-03   66.500 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: 0.320000 sec.
T50 in the 50-300 keV band: 0.128000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    0.280    0.032    0.312
T90     0.260    0.040    0.300
T50     0.124    0.088    0.212
Peak    1.000   -0.326    0.674

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  184.3541 +14.6192 0.0157   27.6   39.8       0.1830    12.2  TRIG_00873186       
------------------------------------------
 
Foreground time interval of the image:
  0.032   0.312 (delta_t =   0.280 [sec])
Background time interval of the image:
-122.555 -43.046 (delta_t =  79.509 [sec])
-38.056   0.032 (delta_t =  38.088 [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    0.032 sec. to    0.312 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.715297     ( -0.294461   0.271971 )
Norm@50keV  : 3.63266E-02    ( -0.00587862   0.00571847 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.77 using 59 PHA bins.
# Reduced chi-squared =          1.259 for     57 degrees of freedom 
# Null hypothesis probability =   8.999711e-02
 
Photon flux (15-150 keV)    in 0.28 sec: 4.19416 ( -0.637147  0.640348 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.23308e-07 ( -1.9636e-08  1.97316e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.032 sec. to    0.312 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.707318     ( -0.507559   0.358331 )
Epeak [keV] : 1.00000E+04      ( -10000 -10000 )
Norm@50keV  : 3.66029E-02    ( -0.00590903   0.00536882 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.79 using 59 PHA bins.
# Reduced chi-squared =          1.282 for     56 degrees of freedom 
# Null hypothesis probability =   7.600073e-02
 
Photon flux (15-150 keV)    in 0.28 sec: 4.19156 ( -0.6356  0.63202 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.22882e-07 ( -1.9124e-08  2.0118e-08 ) ergs/cm2
 
Band function
Time interval is from    0.032 sec. to    0.312 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.968906   ( 0.968906   0.968906 )
beta        : -0.715296    ( -0.271891   0.29446 )
Epeak [keV] : 13.2533      ( -13.2533 -13.2533 )
Norm@50keV   : 5.32342E-02    ( -0.0225975   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.77 using 59 PHA bins.
# Reduced chi-squared =          1.305 for     55 degrees of freedom 
# Null hypothesis probability =   6.389881e-02
 
Photon flux (15-150 keV)    in 0.28 sec: 1.64266E-02 (    ) 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]    : 30.1171  (-6.61666  10.0731)
R^2/D10^2   : 6.26029E-02  (-0.0338455   0.0651382)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          80.53 using 59 PHA bins.
# Reduced chi-squared =          1.413 for     57 degrees of freedom 
# Null hypothesis probability =   2.180244e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.481e-09   8.785e-10
25- 50  1.533e-08   4.840e-09
50-150  9.808e-08   2.993e-08
15-150  1.159e-07   3.051e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-32.3074      -200)
Norm        : 15.8209       (-2.61714     2.61714)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          96.80 using 59 PHA bins.
# Reduced chi-squared =          1.698 for     57 degrees of freedom 
# Null hypothesis probability =   7.897001e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.113e-08   6.336e-09
25- 50  2.142e-08   1.233e-08
50-150  4.697e-08   2.716e-08
15-150  7.953e-08   4.470e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.44602        (-4.07668      6.35343)
R1^2/D10^2  : 1.46717        (-1.18021      13.0382)
kT2 [keV]   : 48.4053        (-17.1816      -48.4112)
R2^2/D10^2  : 1.58063E-02    (-0.0123762   0.0382187)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.98 using 59 PHA bins.
# Reduced chi-squared =          1.290 for     55 degrees of freedom 
# Null hypothesis probability =   7.231587e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.661e-09   3.984e-09
25- 50  1.888e-08   1.049e-08
50-150  1.018e-07   5.496e-08
15-150  1.274e-07   6.695e-08

Peak spectrum fit

Power-law model
Time interval is from   -0.326 sec. to    0.674 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.630917     ( -0.411867   0.364641 )
Norm@50keV  : 1.10735E-02    ( -0.00253022   0.00237523 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.50 using 59 PHA bins.
# Reduced chi-squared =          1.167 for     57 degrees of freedom 
# Null hypothesis probability =   1.824924e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.28830 ( -0.256403  0.258972 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.39542e-07 ( -2.68551e-08  2.69297e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.326 sec. to    0.674 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.621348     ( -1.36281   0.468281 )
Epeak [keV] : 1.00000E+04      ( -10000 -10000 )
Norm@50keV  : 1.11588E-02    ( -0.00254131   -0.0111599 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.50 using 59 PHA bins.
# Reduced chi-squared =          1.188 for     56 degrees of freedom 
# Null hypothesis probability =   1.589882e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.29082 ( -0.25919  0.25272 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.39295e-07 ( -2.6584e-08  2.7117e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.326 sec. to    0.674 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.792895   ( 0.792573   0.792573 )
beta        : -0.630929    ( -0.364648   0.411905 )
Epeak [keV] : 16.2016      ( -16.204 -16.204 )
Norm@50keV   : 1.59670E-02    ( -0.00737639   203108 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.50 using 59 PHA bins.
# Reduced chi-squared =          1.209 for     55 degrees of freedom 
# Null hypothesis probability =   1.377692e-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]    : 34.2119  (-8.92859  16.4652)
R^2/D10^2   : 1.38123E-02  (-0.00871155   0.018566)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.27 using 59 PHA bins.
# Reduced chi-squared =          1.233 for     57 degrees of freedom 
# Null hypothesis probability =   1.113950e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.325e-09   1.188e-09
25- 50  1.508e-08   5.693e-09
50-150  1.171e-07   4.925e-08
15-150  1.344e-07   5.413e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-44.1591      -200)
Norm        : 5.16465       (-1.0782     1.0782)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          84.49 using 59 PHA bins.
# Reduced chi-squared =          1.482 for     57 degrees of freedom 
# Null hypothesis probability =   1.048367e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.286e-08   7.630e-09
25- 50  2.473e-08   1.460e-08
50-150  5.425e-08   3.128e-08
15-150  9.184e-08   5.325e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.95240        (-3.31456      4.03443)
R1^2/D10^2  : 2.95087        (-2.8811      1937.19)
kT2 [keV]   : 41.0794        (-12.6983      64.5288)
R2^2/D10^2  : 8.17584E-03    (-0.00748059   0.0142649)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.37 using 59 PHA bins.
# Reduced chi-squared =          1.189 for     55 degrees of freedom 
# Null hypothesis probability =   1.597194e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.652e-09   5.288e-09
25- 50  1.641e-08   7.851e-09
50-150  1.187e-07   6.719e-08
15-150  1.438e-07   7.745e-08
Plot creation:
Sat Nov 24 07:56:04 EST 2018