batgrbproduct analysis for trigger=906654

batgrbproduct Analysis for Trigger=906654

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Jun  5 16:59:24 EDT 2019
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger906654/GCN5_download_cron
======================================================================

  Trigger: 00906654      Segment: 000

  BAT Trigger Time: 581353058.816   [s; MET]
      Trigger Stop: 581353059.84   [s; MET]
               UTC: 2019-06-04T14:57:15.797140    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 297.586711289614   Dec: -32.9325616929355  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.22
     Image Trigger?:     NO
     Rate S/N Ratio:     15  [ if not an image trigger ]
     Image S/N Ratio:    9.22

  Flight Position:   [ source = BAT ]
    RA: 297.586711289614   Dec: -32.9325616929355  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 297.545136902244   Dec: -32.9751913340303  [deg; J2000]  
        { 19h 50m 10.8s , -32d 58' 30.7" }
         +/- 1.0065138191961 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.338614574008438 [arcmin] (formal 1-sigma fit error)
    SNR: 30.1363171100636
 
  Angular difference between Flight and Ground position is 3.305058 arcmin
 
  Partial Coding Fraction: 0.640625    [ including projection effects ]

  Duration
     T90: 220.135999917984 +/- 4.735231816739
        Measured from: -4.65999984741211
                   to: 215.476000070572     [s; relative to TRIGTIME]
     T50: 132.219999909401 +/- 2.80710525974179
        Measured from: 30.5640001296997
                   to: 162.784000039101     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 157.536000013351     
                   to: 158.536000013351     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -39.7760000228882     
                   to: 239.504000067711     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     9.735660  11.350293   7.473311   1.553702
           0.172894   0.168135   0.146012   0.127369 [error]
 Peak      0.261474   0.315395   0.233951   0.043573
           0.013197   0.014414   0.012962   0.008780 [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 3.28e-06 4.99e-06 5.69e-06 1.24e-05 1.77e-05 2.63e-05   erg/cm2
              Error 1.45e-07 1.24e-07 1.61e-07 8.06e-07 3.88e-07 8.84e-07   erg/cm2
Peak flux Power-law 2.71e+00 2.43e+00 1.50e+00 1.41e+00 7.25e+00 8.06e+00   ph/cm2/s
              Error 2.40e-01 1.33e-01 1.06e-01 2.01e-01 3.90e-01 4.19e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.14e-06 5.04e-06 5.76e-06 9.78e-06 1.74e-05 2.37e-05   erg/cm2
              Error 1.96e-07 1.31e-07 1.75e-07 2.22e-06 4.56e-07 2.67e-06   erg/cm2
Peak flux Cutoff-PL 2.48e+00 2.52e+00 1.57e+00 9.18e-01 7.08e+00 7.49e+00   ph/cm2/s
              Error 2.96e-01 1.52e-01 1.21e-01 3.34e-01 4.10e-01 5.46e-01   ph/cm2/s
 
Fluence        Band 3.12e-06 5.01e-06 5.74e-06 1.03e-05 1.74e-05 2.43e-05   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 2.44e+00 2.52e+00 1.58e+00 9.06e-01 7.06e+00 7.45e+00   ph/cm2/s
              Error 2.87e-01 -------- -------- 2.12e-01 3.97e-01 5.12e-01   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.812    0.044    -      -           6.89e-03 1.50e-04   42.040 57
CPL   1.632    0.178     110.3  428.5      8.34e-03 1.54e-03   38.940 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.695    0.093    -      -           5.47e-02 3.00e-03   58.660 57
CPL   1.261    0.368      88.0   79.9      8.93e-02 3.79e-02   54.190 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: 195.136000 sec.
T50 in the 50-300 keV band: 140.736000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  279.280  -39.776  239.504
T90   220.136   -4.660  215.476
T50   132.220   30.564  162.784
Peak    1.000  157.536  158.536

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  297.5451 -32.9752 0.0064   33.4  176.2       6.6270    30.1  TRIG_00906654       
------------------------------------------
 
Foreground time interval of the image:
-39.776  18.085 (delta_t =  57.861 [sec])
Background time interval of the image:
-239.816 -39.776 (delta_t = 200.040 [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
Multiple GTIs in the spectrum
tstart tstop
-39.776000 233.134000
234.184000 239.504000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.81157     ( -0.0436918   0.0438349 )
Norm@50keV  : 6.89438E-03    ( -0.000150142   0.00015009 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.04 using 59 PHA bins.
# Reduced chi-squared =         0.7375 for     57 degrees of freedom 
# Null hypothesis probability =   9.310038e-01
 
Photon flux (15-150 keV)    in 278.2 sec: 0.954327 ( -0.0247406  0.024881 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.76506e-05 ( -3.87814e-07  3.87992e-07 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-39.776000 233.134000
234.184000 239.504000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.63184     ( -0.181004   0.174071 )
Epeak [keV] : 110.320      ( -30.131 826.878 )
Norm@50keV  : 8.34104E-03    ( -0.00137192   0.00171654 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.94 using 59 PHA bins.
# Reduced chi-squared =         0.6954 for     56 degrees of freedom 
# Null hypothesis probability =   9.597421e-01
 
Photon flux (15-150 keV)    in 278.2 sec: 0.937166 ( -0.029206  0.029451 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.74067e-05 ( -4.57277e-07  4.55135e-07 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
-39.776000 233.134000
234.184000 239.504000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.63211   ( -0.173551   0.154627 )
beta        : -10.0000    ( 10   1.59872e-14 )
Epeak [keV] : 110.360      ( -22.1233 848.585 )
Norm@50keV   : 8.33729E-03    ( -0.00136981   0.0017218 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.94 using 59 PHA bins.
# Reduced chi-squared =         0.7081 for     55 degrees of freedom 
# Null hypothesis probability =   9.501879e-01
 
Photon flux (15-150 keV)    in 278.2 sec: 0.938746 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.74009e-05 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 14.5655  (  )
R^2/D10^2   : 0.103284  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         488.32 using 59 PHA bins.
# Reduced chi-squared =         8.5671 for     57 degrees of freedom 
# Null hypothesis probability =   8.239153e-70
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.282e-06   6.023e-08
25- 50  4.955e-06   1.502e-07
50-150  7.058e-06   2.865e-07
15-150  1.330e-05   3.005e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 117.631       (-9.47563      14.1229)
Norm        : 3.94346       (-0.148288     0.129892)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.40 using 59 PHA bins.
# Reduced chi-squared =         0.8492 for     57 degrees of freedom 
# Null hypothesis probability =   7.841381e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.771e-06   1.497e-07
25- 50  4.995e-06   2.017e-07
50-150  9.107e-06   1.942e-06
15-150  1.687e-05   2.036e-06
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.66047        (-0.560851      0.595006)
R1^2/D10^2  : 1.28494        (-0.350667      0.525718)
kT2 [keV]   : 23.7606        (-1.71116      2.10096)
R2^2/D10^2  : 1.33597E-02    (-0.00376714   0.0046247)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.51 using 59 PHA bins.
# Reduced chi-squared =          1.009 for     55 degrees of freedom 
# Null hypothesis probability =   4.553756e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.786e-06   2.157e-07
25- 50  5.061e-06   2.226e-07
50-150  9.115e-06   4.521e-07
15-150  1.696e-05   6.858e-07

Peak spectrum fit

Power-law model
Time interval is from  157.536 sec. to  158.536 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.69457     ( -0.0922822   0.0939953 )
Norm@50keV  : 5.46638E-02    ( -0.00300273   0.00298731 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.66 using 59 PHA bins.
# Reduced chi-squared =          1.029 for     57 degrees of freedom 
# Null hypothesis probability =   4.144031e-01
 
Photon flux (15-150 keV)    in 1 sec: 7.24628 ( -0.390036  0.390573 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.06341e-07 ( -2.91314e-08  2.92534e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  157.536 sec. to  158.536 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.26078     ( -0.382264   0.354156 )
Epeak [keV] : 88.0447      ( -20.4336 139.41 )
Norm@50keV  : 8.93343E-02    ( -0.0288494   0.0470392 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.19 using 59 PHA bins.
# Reduced chi-squared =         0.9677 for     56 degrees of freedom 
# Null hypothesis probability =   5.437061e-01
 
Photon flux (15-150 keV)    in 1 sec: 7.08348 ( -0.40935  0.4105 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.94619e-07 ( -3.0995e-08  3.0972e-08 ) ergs/cm2
 
Band function
Time interval is from  157.536 sec. to  158.536 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.26103   ( -0.388198   0.274685 )
beta        : -10.0000    ( 10   20 )
Epeak [keV] : 88.0775      ( -20.4949 139.356 )
Norm@50keV   : 8.92866E-02    ( -0.0287997   0.0470788 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.19 using 59 PHA bins.
# Reduced chi-squared =         0.9853 for     55 degrees of freedom 
# Null hypothesis probability =   5.055761e-01
 
Photon flux (15-150 keV)    in 1 sec: 7.05849 ( -0.05849  -0.36525 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.95615e-07 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 14.2484  (  )
R^2/D10^2   : 0.944252  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         138.38 using 59 PHA bins.
# Reduced chi-squared =         2.4277 for     57 degrees of freedom 
# Null hypothesis probability =   1.017972e-08
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.042e-08   4.085e-09
25- 50  1.530e-07   1.030e-08
50-150  2.063e-07   2.115e-08
15-150  3.997e-07   2.470e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 148.662       (-32.8967      41.589)
Norm        : 29.5431       (-1.78091     2.17767)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.54 using 59 PHA bins.
# Reduced chi-squared =         0.9569 for     57 degrees of freedom 
# Null hypothesis probability =   5.678635e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.593e-08   6.150e-09
25- 50  1.406e-07   1.370e-08
50-150  2.764e-07   9.165e-08
15-150  4.929e-07   1.007e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.74640        (-1.1173      1.28421)
R1^2/D10^2  : 15.4463        (-8.08951      21.9411)
kT2 [keV]   : 21.7199        (-2.59814      3.51344)
R2^2/D10^2  : 0.168602    (-0.075315   0.11033)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.29 using 59 PHA bins.
# Reduced chi-squared =         0.9689 for     55 degrees of freedom 
# Null hypothesis probability =   5.403228e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.833e-08   2.150e-08
25- 50  1.353e-07   1.765e-08
50-150  2.781e-07   4.575e-08
15-150  4.917e-07   7.860e-08
Plot creation:
Wed Jun  5 17:04:43 EDT 2019