batgrbproduct analysis for trigger=863186

batgrbproduct Analysis for Trigger=863186

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Sep 25 20:02:05 EDT 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger863186/GCN5_download_cron
======================================================================

  Trigger: 00863186      Segment: 000

  BAT Trigger Time: 559495364.032   [s; MET]
      Trigger Stop: 559495368.128   [s; MET]
               UTC: 2018-09-24T15:22:22.386320    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 49.1609350574153   Dec: -58.5055477959711  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.17
     Image Trigger?:     NO
     Rate S/N Ratio:     10.4880884817015  [ if not an image trigger ]
     Image S/N Ratio:    7.17

  Flight Position:   [ source = BAT ]
    RA: 49.1609350574153   Dec: -58.5055477959711  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 49.2151231341662   Dec: -58.525487531215  [deg; J2000]  
        { 03h 16m 51.6s , -58d 31' 31.8" }
         +/- 1.41315973239946 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.52626579970331 [arcmin] (formal 1-sigma fit error)
    SNR: 18.559208292342
 
  Angular difference between Flight and Ground position is 2.077180 arcmin
 
  Partial Coding Fraction: 1    [ including projection effects ]

  Duration
     T90: 85.5919998884201 +/- 11.8408677727485
        Measured from: -67.1839997768402
                   to: 18.4080001115799     [s; relative to TRIGTIME]
     T50: 50.9559999704361 +/- 4.49904881592429
        Measured from: -48.4639998674393
                   to: 2.49200010299683     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 2.72800004482269     
                   to: 3.72800004482269     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -84.6799999475479     
                   to: 26.3480000495911     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.000135   1.011701   0.582701   0.059351
           0.061651   0.063440   0.054883   0.047140 [error]
 Peak      0.028992   0.026277   0.023643   0.007909
           0.006235   0.006404   0.005520   0.004630 [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 2.84e-07 4.01e-07 4.20e-07 8.10e-07 1.36e-06 1.92e-06   erg/cm2
              Error 3.07e-08 2.87e-08 5.24e-08 2.05e-07 1.18e-07 2.57e-07   erg/cm2
Peak flux Power-law 2.31e-01 2.07e-01 1.28e-01 1.20e-01 6.17e-01 6.87e-01   ph/cm2/s
              Error 7.68e-02 4.71e-02 4.30e-02 7.83e-02 1.40e-01 1.62e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.80e-07 4.08e-07 4.18e-07 6.08e-07 1.34e-06 1.71e-06   erg/cm2
              Error 3.36e-08 3.57e-08 5.47e-08 3.87e-07 1.39e-07 4.29e-07   erg/cm2
Peak flux Cutoff-PL 2.17e-01 2.24e-01 1.31e-01 5.57e-02 6.07e-01 6.27e-01   ph/cm2/s
              Error 8.57e-02 6.15e-02 4.85e-02 7.22e-02 1.42e-01 1.78e-01   ph/cm2/s
 
Fluence        Band 2.72e-07 4.15e-07 4.05e-07 7.05e-07 1.33e-06 1.81e-06   erg/cm2
              Error 3.42e-08 -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 2.16e-01 2.23e-01 1.32e-01 5.79e-02 6.08e-01 6.29e-01   ph/cm2/s
              Error 8.57e-02 -------- -------- -------- -------- --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.934    0.142    -      -           1.33e-03 1.18e-04   64.370 57
CPL   1.786    0.502      62.0    0.0      1.62e-03 0.00e+00   64.130 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.697    0.397    -      -           4.65e-03 1.21e-03   41.550 57
CPL   1.085    1.543      66.5    0.0      1.02e-02 0.00e+00   41.010 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: 90.816000 sec.
T50 in the 50-300 keV band: 55.104000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  111.028  -84.680   26.348
T90    85.592  -67.184   18.408
T50    50.956  -48.464    2.492
Peak    1.000    2.728    3.728

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   49.2151 -58.5255 0.0103    8.2  145.9       2.8843    18.6  TRIG_00863186       
------------------------------------------
 
Foreground time interval of the image:
-84.680  26.348 (delta_t = 111.028 [sec])
Background time interval of the image:
-239.032 -173.702 (delta_t =  65.330 [sec])
-173.032 -84.680 (delta_t =  88.352 [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  -84.680 sec. to   26.348 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.93360     ( -0.139792   0.14442 )
Norm@50keV  : 1.33248E-03    ( -0.000119446   0.000117391 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.37 using 59 PHA bins.
# Reduced chi-squared =          1.129 for     57 degrees of freedom 
# Null hypothesis probability =   2.342771e-01
 
Photon flux (15-150 keV)    in 111 sec: 0.194011 ( -0.0139333  0.0139397 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.36053e-06 ( -1.1722e-07  1.19139e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -84.680 sec. to   26.348 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.78592     ( -0.55766   0.446174 )
Epeak [keV] : 61.9530      (   )
Norm@50keV  : 1.61602E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.13 using 59 PHA bins.
# Reduced chi-squared =          1.145 for     56 degrees of freedom 
# Null hypothesis probability =   2.130254e-01
 
Photon flux (15-150 keV)    in 111 sec: 0.192538 ( -0.014736  0.014712 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.33724e-06 ( -1.41148e-07  1.37063e-07 ) ergs/cm2
 
Band function
Time interval is from  -84.680 sec. to   26.348 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.78596   ( 1.71764   0.465211 )
beta        : -10.0000    ( 10   3.55271e-15 )
Epeak [keV] : 61.8989      ( -42.2469 -61.8989 )
Norm@50keV   : 1.61575E-03    ( -0.000392534   0.00170076 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.13 using 59 PHA bins.
# Reduced chi-squared =          1.166 for     55 degrees of freedom 
# Null hypothesis probability =   1.869902e-01
 
Photon flux (15-150 keV)    in 111 sec: 0.192422 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.33031e-06 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 9.75756  (-0.9059  1.03553)
R^2/D10^2   : 9.57977E-02  (-0.0306246   0.0438059)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         111.91 using 59 PHA bins.
# Reduced chi-squared =         1.9634 for     57 degrees of freedom 
# Null hypothesis probability =   1.934581e-05
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.044e-07   2.581e-08
25- 50  4.906e-07   4.201e-08
50-150  2.384e-07   5.078e-08
15-150  9.334e-07   8.286e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 76.1339       (-17.3152      26.3251)
Norm        : 0.916040       (-0.103981     0.123501)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.12 using 59 PHA bins.
# Reduced chi-squared =          1.160 for     57 degrees of freedom 
# Null hypothesis probability =   1.910277e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.629e-07   2.608e-08
25- 50  4.275e-07   3.352e-08
50-150  5.834e-07   1.202e-07
15-150  1.274e-06   1.481e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.17511        (-0.94296      1.0009)
R1^2/D10^2  : 0.424712        (-0.179063      0.366343)
kT2 [keV]   : 24.1819        (-5.322      9.14604)
R2^2/D10^2  : 2.28930E-03    (-0.00152762   0.0035285)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.39 using 59 PHA bins.
# Reduced chi-squared =          1.098 for     55 degrees of freedom 
# Null hypothesis probability =   2.873318e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.749e-07   5.783e-08
25- 50  4.103e-07   7.970e-08
50-150  6.648e-07   3.393e-07
15-150  1.350e-06   4.431e-07

Peak spectrum fit

Power-law model
Time interval is from    2.728 sec. to    3.728 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.69732     ( -0.381908   0.412723 )
Norm@50keV  : 4.65315E-03    ( -0.00123747   0.00119146 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.55 using 59 PHA bins.
# Reduced chi-squared =         0.7289 for     57 degrees of freedom 
# Null hypothesis probability =   9.381498e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.617412 ( -0.139793  0.139802 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.30922e-08 ( -1.16458e-08  1.20989e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    2.728 sec. to    3.728 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.08496     ( -1.93086   1.15433 )
Epeak [keV] : 66.4592      (   )
Norm@50keV  : 1.02431E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.01 using 59 PHA bins.
# Reduced chi-squared =         0.7323 for     56 degrees of freedom 
# Null hypothesis probability =   9.335416e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.607340 ( -0.141528  0.141609 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.08204e-08 ( -1.23003e-08  1.31489e-08 ) ergs/cm2
 
Band function
Time interval is from    2.728 sec. to    3.728 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.94469   ( -6.94469   -4.94469 )
beta        : -1.86232    ( -0.685418   0.456502 )
Epeak [keV] : 23.8739      ( -23.8739 95.5703 )
Norm@50keV   : 749.620    ( -168.17   4.48622e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.61 using 59 PHA bins.
# Reduced chi-squared =         0.7384 for     55 degrees of freedom 
# Null hypothesis probability =   9.263059e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.607613 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.10862e-08 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 11.9828  (-3.1915  4.41422)
R^2/D10^2   : 0.154022  (-0.103962   0.317523)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.28 using 59 PHA bins.
# Reduced chi-squared =         0.7943 for     57 degrees of freedom 
# Null hypothesis probability =   8.687101e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.677e-09   2.560e-09
25- 50  1.470e-08   6.346e-09
50-150  1.267e-08   6.973e-09
15-150  3.205e-08   1.334e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 127.989       (-72.368      -124.734)
Norm        : 2.59843       (-0.645417     0.977106)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.08 using 59 PHA bins.
# Reduced chi-squared =         0.7206 for     57 degrees of freedom 
# Null hypothesis probability =   9.445933e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.748e-09   3.960e-09
25- 50  1.220e-08   6.990e-09
50-150  2.246e-08   1.491e-08
15-150  4.141e-08   2.563e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.47200        (-2.8952      5.16263)
R1^2/D10^2  : 1.64192        (-1.45514      38.4886)
kT2 [keV]   : 19.7157        (-7.63027      60.1443)
R2^2/D10^2  : 1.98840E-02    (-0.019669   0.11415)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.53 using 59 PHA bins.
# Reduced chi-squared =         0.7369 for     55 degrees of freedom 
# Null hypothesis probability =   9.275927e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.151e-09   4.277e-09
25- 50  1.197e-08   6.520e-09
50-150  2.154e-08   1.319e-08
15-150  4.067e-08   2.068e-08
Plot creation:
Tue Sep 25 20:07:21 EDT 2018