batgrbproduct analysis for trigger=743086

batgrbproduct Analysis for Trigger=743086

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Mar 19 15:23:43 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger743086/GCN5_download_cron
======================================================================

  Trigger: 00743086      Segment: 000

  BAT Trigger Time: 511543691.328   [s; MET]
      Trigger Stop: 511543691.84   [s; MET]
               UTC: 2017-03-18T15:27:52.554820    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 284.279322271095   Dec: 6.26950020290672  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.21
     Image Trigger?:     NO
     Rate S/N Ratio:     14.9331845230681  [ if not an image trigger ]
     Image S/N Ratio:    7.21

  Flight Position:   [ source = BAT ]
    RA: 284.279322271095   Dec: 6.26950020290672  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 284.228876083797   Dec: 6.33457241535245  [deg; J2000]  
        { 18h 56m 54.9s , +06d 20' 04.5" }
         +/- 3.72547982618735 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.15459452283514 [arcmin] (formal 1-sigma fit error)
    SNR: 4.64669091855776
 
  Angular difference between Flight and Ground position is 4.928972 arcmin
 
  Partial Coding Fraction: 0.6796875    [ including projection effects ]

  Duration
     T90: 160 +/- 35.7770876399966
        Measured from: -15.3279998898506
                   to: 144.672000110149     [s; relative to TRIGTIME]
     T50: 112 +/- 57.6888204074238
        Measured from: 0.672000110149384
                   to: 112.672000110149     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -7.82800000905991     
                   to: -6.82800000905991     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -15.3280000090599     
                   to: 160.67199999094     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.358499   0.398031   0.191294   0.131153
           0.092114   0.093642   0.081514   0.073220 [error]
 Peak      0.001408   0.014935  -0.003112   0.008401
           0.007738   0.008145   0.007108   0.006339 [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 1.05e-07 1.57e-07 1.76e-07 3.72e-07 5.51e-07 8.10e-07   erg/cm2
              Error 4.43e-08 4.30e-08 8.49e-08 3.96e-07 1.92e-07 4.75e-07   erg/cm2
Peak flux Power-law 6.53e-02 3.36e-02 1.07e-02 4.34e-03 1.12e-01 1.14e-01   ph/cm2/s
              Error 8.99e-02 4.79e-02 2.90e-02 1.21e-01 1.50e-01 1.56e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.07e-07 1.57e-07 1.72e-07 3.48e-07 5.44e-07 7.84e-07   erg/cm2
              Error 4.14e-08 4.32e-08 8.02e-08 4.48e-07 1.93e-07 4.75e-07   erg/cm2
Peak flux Cutoff-PL 8.90e-02 1.11e-01 1.59e-03 1.71e-09 2.01e-01 1.99e-01   ph/cm2/s
              Error 9.21e-02 9.43e-02 7.46e-03 9.14e-05 1.57e-01 1.58e-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    1.840    0.594    -      -           3.40e-04 1.18e-04   67.870 57
CPL   1.847    0.596    9999.3    0.0      3.39e-04 0.00e+00   67.870 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.655    0.000    -      -           5.17e-04 1.01e-03   62.200 57
CPL -10.000   -2.511      29.5    7.3      2.81e+05 2.72e+06   58.660 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: 1.088000 sec.
T50 in the 50-300 keV band: 0.576000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  176.000  -15.328  160.672
T90   160.000  -15.328  144.672
T50   112.000    0.672  112.672
Peak    1.000   -7.828   -6.828

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  284.2289  +6.3346 0.0414   30.0   26.1       0.3556     4.6  TRIG_00743086       
------------------------------------------
 
Foreground time interval of the image:
-15.328   9.073 (delta_t =  24.401 [sec])
Background time interval of the image:
-239.328 -15.328 (delta_t = 224.000 [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  -15.328 sec. to  160.672 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.84013     ( -0.560301   0.627048 )
Norm@50keV  : 3.40303E-04    ( -0.000124125   0.00011248 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.87 using 59 PHA bins.
# Reduced chi-squared =          1.191 for     57 degrees of freedom 
# Null hypothesis probability =   1.535927e-01
 
Photon flux (15-150 keV)    in 176 sec: 4.76426E-02 ( -0.0130242  0.0130267 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.5078e-07 ( -1.86354e-07  1.96844e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -15.328 sec. to  160.672 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.84732     ( -0.56964   0.622652 )
Epeak [keV] : 9999.27      (   )
Norm@50keV  : 3.39499E-04    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.87 using 59 PHA bins.
# Reduced chi-squared =          1.212 for     56 degrees of freedom 
# Null hypothesis probability =   1.328623e-01
 
Photon flux (15-150 keV)    in 176 sec: 4.76422E-02 ( -0.0130054  0.0130006 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.44181e-07 ( -1.8027e-07  2.05605e-07 ) ergs/cm2
 
Band function
Time interval is from  -15.328 sec. to  160.672 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.51071   ( 1.51073   1.51073 )
beta        : -1.84005    ( 1.84013   0.560252 )
Epeak [keV] : 11.5733      ( -11.5768 -11.5768 )
Norm@50keV   : 8.72639E-04    ( -0.000872666   0.00859942 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.87 using 59 PHA bins.
# Reduced chi-squared =          1.234 for     55 degrees of freedom 
# Null hypothesis probability =   1.141040e-01
 
Photon flux (15-150 keV)    in 176 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]    : 9.25717  (-2.92797  4.65059)
R^2/D10^2   : 2.85861E-02  (-0.0284905   0.09569)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          73.37 using 59 PHA bins.
# Reduced chi-squared =          1.287 for     57 degrees of freedom 
# Null hypothesis probability =   7.107639e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.512e-08   5.156e-08
25- 50  1.890e-07   1.145e-07
50-150  7.852e-08   5.515e-08
15-150  3.526e-07   2.248e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 98.3258       (-98.6683      -98.6683)
Norm        : 0.207808       (-0.069259     0.125578)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.02 using 59 PHA bins.
# Reduced chi-squared =          1.211 for     57 degrees of freedom 
# Null hypothesis probability =   1.320116e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.559e-08   5.870e-08
25- 50  1.647e-07   9.909e-08
50-150  2.644e-07   2.050e-07
15-150  5.247e-07   3.589e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.15341        (-2.05825      2.36814)
R1^2/D10^2  : 6.89279E-02        (-0.0485737      0.0800305)
kT2 [keV]   : 198.529        (-198.616      -198.616)
R2^2/D10^2  : 7.98136E-06    (-4.2575e-06   0.000222753)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.19 using 59 PHA bins.
# Reduced chi-squared =          1.185 for     55 degrees of freedom 
# Null hypothesis probability =   1.634853e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.037e-07   6.382e-08
25- 50  1.607e-07   9.513e-08
50-150  3.960e-07   8.862e-08
15-150  6.604e-07   2.424e-07

Peak spectrum fit

Power-law model
Time interval is from   -7.828 sec. to   -6.828 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.65461     ( -2.65165   -2.65165 )
Norm@50keV  : 5.17084E-04    ( -0.000517578   0.00149978 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.20 using 59 PHA bins.
# Reduced chi-squared =          1.091 for     57 degrees of freedom 
# Null hypothesis probability =   2.964335e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.111978 ( -0.111979  0.188879 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.48129e-09 ( -5.35587e-09  1.33981e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -7.828 sec. to   -6.828 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -9.99973     ( 9.99996   4.97876 )
Epeak [keV] : 29.5198      ( -7.17363 7.49372 )
Norm@50keV  : 2.81456E+05    ( -287923   5.1421e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.66 using 59 PHA bins.
# Reduced chi-squared =          1.048 for     56 degrees of freedom 
# Null hypothesis probability =   3.781335e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.201010 0.201401 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.86732e-17 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from   -7.828 sec. to   -6.828 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -5   -5 )
beta        : -9.36012    ( 9.37152   19.3545 )
Epeak [keV] : 27.8268      ( -11.5206 15.8123 )
Norm@50keV   : 149.704    ( -146.102   5617.1 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.04 using 59 PHA bins.
# Reduced chi-squared =          1.092 for     55 degrees of freedom 
# Null hypothesis probability =   2.981430e-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]    : 6.53761  (-6.53761  -6.53761)
R^2/D10^2   : 0.441362  (-0.441373   -0.441373)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.00 using 59 PHA bins.
# Reduced chi-squared =          1.070 for     57 degrees of freedom 
# Null hypothesis probability =   3.340959e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.807e-09   2.214e-09
25- 50  3.355e-09   3.002e-09
50-150  4.314e-10   6.245e-10
15-150  6.593e-09   6.440e-09
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 21.2742       (-21.8287      -21.8287)
Norm        : 1.43611       (-1.42585     -1.42585)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.86 using 59 PHA bins.
# Reduced chi-squared =          1.085 for     57 degrees of freedom 
# Null hypothesis probability =   3.068349e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.343e-09   1.748e-09
25- 50  2.149e-09   2.497e-09
50-150  7.127e-10   1.289e-09
15-150  5.205e-09   5.160e-09
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.53838        (-6.53838      -6.53838)
R1^2/D10^2  : 0.441146        (-0.441165      -0.441165)
kT2 [keV]   : 8.86677E-02        (-0.0886677      -0.0886677)
R2^2/D10^2  : 6.15831E-04    (-0.000615858   -0.000615858)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.00 using 59 PHA bins.
# Reduced chi-squared =          1.109 for     55 degrees of freedom 
# Null hypothesis probability =   2.689970e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00
Plot creation:
Sun Mar 19 15:47:27 EDT 2017