batgrbproduct analysis for trigger=864584

batgrbproduct Analysis for Trigger=864584

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Oct  1 14:53:45 EDT 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger864584/GCN5_download_cron
======================================================================

  Trigger: 00864584      Segment: 000

  BAT Trigger Time: 560004250.944   [s; MET]
      Trigger Stop: 560004251.968   [s; MET]
               UTC: 2018-09-30T12:43:49.266800    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 76.8702927582825   Dec: -25.1383099129713  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.59
     Image Trigger?:     NO
     Rate S/N Ratio:     11.1803398874989  [ if not an image trigger ]
     Image S/N Ratio:    7.59

  Flight Position:   [ source = BAT ]
    RA: 76.8702927582825   Dec: -25.1383099129713  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 76.8939909691127   Dec: -25.1237729345108  [deg; J2000]  
        { 05h 07m 34.6s , -25d 07' 25.6" }
         +/- 2.23378231730094 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.982984296750699 [arcmin] (formal 1-sigma fit error)
    SNR: 9.64913974312665
 
  Angular difference between Flight and Ground position is 1.554958 arcmin
 
  Partial Coding Fraction: 0.875    [ including projection effects ]

  Duration
     T90: 6.79999995231628 +/- 0.948027340301586
        Measured from: -2.97599983215332
                   to: 3.82400012016296     [s; relative to TRIGTIME]
     T50: 2.71599996089935 +/- 1.9464059888242
        Measured from: -0.671999931335449
                   to: 2.0440000295639     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.139999985694885     
                   to: 1.13999998569489     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -3.24399995803833     
                   to: 4.2039999961853     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.130491   0.158345   0.058302   0.027789
           0.018574   0.019477   0.017105   0.015370 [error]
 Peak      0.038410   0.044122   0.008509   0.000796
           0.007155   0.007305   0.006478   0.005744 [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 3.99e-08 5.90e-08 6.50e-08 1.35e-07 2.05e-07 2.99e-07   erg/cm2
              Error 8.42e-09 8.75e-09 1.64e-08 6.81e-08 3.78e-08 8.54e-08   erg/cm2
Peak flux Power-law 4.27e-01 2.86e-01 1.25e-01 7.55e-02 8.76e-01 9.14e-01   ph/cm2/s
              Error 1.09e-01 6.04e-02 4.97e-02 5.59e-02 1.74e-01 1.87e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.97e-08 5.98e-08 6.48e-08 1.09e-07 2.02e-07 2.72e-07   erg/cm2
              Error 8.70e-09 1.14e-08 1.84e-08 1.06e-07 4.43e-08 1.15e-07   erg/cm2
Peak flux Cutoff-PL 4.17e-01 3.12e-01 1.10e-01 2.04e-02 8.55e-01 8.60e-01   ph/cm2/s
              Error 1.18e-01 9.29e-02 8.71e-02 6.79e-02 1.82e-01 2.08e-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    1.859    0.278    -      -           2.99e-03 5.49e-04   53.800 57
CPL   1.746    1.050      91.7   -0.0      3.49e-03 1.42e-02   53.780 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.193    0.411    -      -           5.31e-03 1.60e-03   56.930 57
CPL   1.486    2.116      25.5    0.0      1.52e-02 0.00e+00   56.670 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    7.448   -3.244    4.204
T90     6.800   -2.976    3.824
T50     2.716   -0.672    2.044
Peak    1.000    0.140    1.140

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   76.8940 -25.1238 0.0199   26.8 -167.6       0.3779     9.6  TRIG_00864584       
------------------------------------------
 
Foreground time interval of the image:
 -3.244   4.204 (delta_t =   7.448 [sec])
Background time interval of the image:
-105.543 -25.412 (delta_t =  80.131 [sec])
-23.944  -3.244 (delta_t =  20.700 [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   -3.244 sec. to    4.204 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.85858     ( -0.268861   0.287126 )
Norm@50keV  : 2.99398E-03    ( -0.000558226   0.000539596 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.80 using 59 PHA bins.
# Reduced chi-squared =         0.9438 for     57 degrees of freedom 
# Null hypothesis probability =   5.959721e-01
 
Photon flux (15-150 keV)    in 7.448 sec: 0.422309 ( -0.0623687  0.0623711 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.05017e-07 ( -3.72007e-08  3.83655e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -3.244 sec. to    4.204 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.74578     ( -1.51033   0.589126 )
Epeak [keV] : 91.7302      ( -97.3377 -97.3544 )
Norm@50keV  : 3.49069E-03    ( -0.00344136   0.0250359 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.78 using 59 PHA bins.
# Reduced chi-squared =         0.9603 for     56 degrees of freedom 
# Null hypothesis probability =   5.595514e-01
 
Photon flux (15-150 keV)    in 7.448 sec: 0.420732 ( -0.063704  0.063548 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.02411e-07 ( -4.81029e-08  4.05462e-08 ) ergs/cm2
 
Band function
Time interval is from   -3.244 sec. to    4.204 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.871427   ( 1.13948   2.70549 )
beta        : -2.14201    ( 2.08143   0.454422 )
Epeak [keV] : 39.6208      ( -39.3164 -39.3164 )
Norm@50keV   : 1.27724E-02    ( -0.0139786   363.28 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.00 using 59 PHA bins.
# Reduced chi-squared =         0.9637 for     55 degrees of freedom 
# Null hypothesis probability =   5.512309e-01
 
Photon flux (15-150 keV)    in 7.448 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]    : 9.62057  (-1.49644  1.84463)
R^2/D10^2   : 0.230636  (-0.112515   0.207903)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.42 using 59 PHA bins.
# Reduced chi-squared =          1.078 for     57 degrees of freedom 
# Null hypothesis probability =   3.205639e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.192e-08   9.310e-09
25- 50  7.505e-08   1.595e-08
50-150  3.498e-08   1.490e-08
15-150  1.420e-07   3.035e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 82.1166       (-33.5556      86.7941)
Norm        : 1.96969       (-0.401291     0.536362)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.09 using 59 PHA bins.
# Reduced chi-squared =         0.9490 for     57 degrees of freedom 
# Null hypothesis probability =   5.848904e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.813e-08   7.906e-09
25- 50  6.316e-08   1.243e-08
50-150  9.072e-08   5.660e-08
15-150  1.920e-07   7.530e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.92231        (-1.91583      1.86623)
R1^2/D10^2  : 0.425587        (-0.212744      0.588715)
kT2 [keV]   : 58.0670        (-55.4257      -77.2108)
R2^2/D10^2  : 3.42182E-04    (-0.000146442   0.00580564)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.41 using 59 PHA bins.
# Reduced chi-squared =         0.9348 for     55 degrees of freedom 
# Null hypothesis probability =   6.124614e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.655e-08   1.723e-08
25- 50  6.766e-08   2.928e-08
50-150  1.025e-07   6.056e-08
15-150  2.067e-07   8.820e-08

Peak spectrum fit

Power-law model
Time interval is from    0.140 sec. to    1.140 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.19320     ( -0.380996   0.440197 )
Norm@50keV  : 5.30879E-03    ( -0.0016296   0.00157773 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.93 using 59 PHA bins.
# Reduced chi-squared =         0.9988 for     57 degrees of freedom 
# Null hypothesis probability =   4.776709e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.875759 ( -0.173896  0.17398 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.98667e-08 ( -1.27002e-08  1.35019e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.140 sec. to    1.140 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.48586     ( -3.61414   0.618608 )
Epeak [keV] : 25.4841      (   )
Norm@50keV  : 1.51966E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.67 using 59 PHA bins.
# Reduced chi-squared =          1.012 for     56 degrees of freedom 
# Null hypothesis probability =   4.499198e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.855248 ( -0.179591  0.185302 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.48772e-08 ( -1.33561e-08  1.77274e-08 ) ergs/cm2
 
Band function
Time interval is from    0.140 sec. to    1.140 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.08125   ( 1.08074   1.08074 )
beta        : -2.80715    ( 2.70978   0.84127 )
Epeak [keV] : 27.6703      ( -27.9785 18.5715 )
Norm@50keV   : 2.86904E-02    ( -0.0336553   1974.78 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.18 using 59 PHA bins.
# Reduced chi-squared =          1.022 for     55 degrees of freedom 
# Null hypothesis probability =   4.302998e-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]    : 8.03882  (-1.53767  1.84541)
R^2/D10^2   : 0.970807  (-0.546671   1.28284)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.67 using 59 PHA bins.
# Reduced chi-squared =          1.029 for     57 degrees of freedom 
# Null hypothesis probability =   4.140560e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.139e-08   4.224e-09
25- 50  2.009e-08   7.444e-09
50-150  5.361e-09   3.601e-09
15-150  3.684e-08   1.276e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 42.6339       (-17.5997      41.6514)
Norm        : 5.46976       (-1.72331     2.79865)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.66 using 59 PHA bins.
# Reduced chi-squared =         0.9940 for     57 degrees of freedom 
# Null hypothesis probability =   4.879268e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.282e-08   3.363e-09
25- 50  1.732e-08   5.755e-09
50-150  1.435e-08   8.314e-09
15-150  4.449e-08   1.614e-08
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.43738        (-7.44017      1.77749)
R1^2/D10^2  : 1.26164        (-0.712558      2.20777)
kT2 [keV]   : 198.095        (-198.643      -198.643)
R2^2/D10^2  : 6.17165E-05    (-5.60113e-05   0.814565)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.61 using 59 PHA bins.
#Fit statistic : Chi-Squared =          55.55 using 59 PHA bins.
# Reduced chi-squared =          1.029 for     55 degrees of freedom 
# Reduced chi-squared =          1.010 for     55 degrees of freedom 
# Null hypothesis probability =   4.147051e-01
# Null hypothesis probability =   4.537798e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.244e-08   5.930e-09
25- 50  1.863e-08   1.068e-08
50-150  8.097e-09   5.390e-09
15-150  3.917e-08   2.105e-08
Plot creation:
Mon Oct  1 14:58:02 EDT 2018