batgrbproduct analysis for trigger=814090

batgrbproduct Analysis for Trigger=814090

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Mar 14 19:41:41 EDT 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger814090/GCN5_download_cron
======================================================================

  Trigger: 00814090      Segment: 000

  BAT Trigger Time: 542656155.52   [s; MET]
      Trigger Stop: 542656157.568   [s; MET]
               UTC: 2018-03-13T17:48:54.901660    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 275.091196628569   Dec: 7.18817513469049  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    6.73
     Image Trigger?:     NO
     Rate S/N Ratio:     11.4017542509914  [ if not an image trigger ]
     Image S/N Ratio:    6.73

  Flight Position:   [ source = BAT ]
    RA: 275.091196628569   Dec: 7.18817513469049  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 275.030121569964   Dec: 7.29963485299302  [deg; J2000]  
        { 18h 20m 07.2s , +07d 17' 58.7" }
         +/- nan [arcmin] (estimated 90% radius based on SNR)
         +/- 1.86635689967769 [arcmin] (formal 1-sigma fit error)
    SNR: -5.49488717520607
 
  Angular difference between Flight and Ground position is 7.611757 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 134.143999934196 +/- 495.839016969263
        Measured from: 284.256000161171
                   to: 418.400000095367     [s; relative to TRIGTIME]
     T50: 54.8680000305176 +/- 57.9801002239824
        Measured from: 308.788000106812
                   to: 363.656000137329     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 374.463999986649     
                   to: 375.463999986649     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -209.916000008583     
                   to: 422.128000020981     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     5.655833   6.703685   4.910962   1.000848
           0.201240   0.185547   0.158055   0.138452 [error]
 Peak      0.033636   0.038028   0.029298   0.004144
           0.011073   0.009780   0.008060   0.006958 [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 1.57e-06 2.74e-06 3.65e-06 9.97e-06 1.06e-05 1.79e-05   erg/cm2
              Error 1.03e-07 1.01e-07 1.60e-07 1.01e-06 3.79e-07 1.09e-06   erg/cm2
Peak flux Power-law 3.27e-01 2.89e-01 1.75e-01 1.60e-01 8.59e-01 9.51e-01   ph/cm2/s
              Error 1.45e-01 7.75e-02 6.72e-02 1.32e-01 2.28e-01 2.48e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.57e-06 2.75e-06 3.67e-06 9.22e-06 1.06e-05 1.72e-05   erg/cm2
              Error 1.10e-07 1.09e-07 1.63e-07 1.92e-06 4.12e-07 1.70e-06   erg/cm2
Peak flux Cutoff-PL 3.40e-01 2.90e-01 1.69e-01 1.47e-01 8.63e-01 9.52e-01   ph/cm2/s
              Error 1.46e-01 7.69e-02 6.38e-02 1.63e-01 1.70e-01 2.46e-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    1.584    0.066    -      -           1.80e-03 6.00e-05   59.960 57
CPL   1.584    0.137    9999.4    0.0      1.80e-03 2.52e-04   59.970 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.723    0.529    -      -           6.42e-03 1.87e-03   39.670 57
CPL   1.719    0.856    9999.3   -0.0      6.43e-03 1.16e-02   39.670 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: 8.832000 sec.
T50 in the 50-300 keV band: 5.568000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  632.044 -209.916  422.128
T90   134.144  284.256  418.400
T50    54.868  308.788  363.656
Peak    1.000  374.464  375.464

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  275.0301  +7.2996 0.0349    0.1  158.6      -6.5470    -5.5  TRIG_00814090       
------------------------------------------
 
Foreground time interval of the image:
-209.916 292.181 (delta_t = 502.097 [sec])
Background time interval of the image:
-239.520 -209.916 (delta_t =  29.604 [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
-209.916000 350.562700
351.480000 422.128000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.58417     ( -0.0657469   0.0658571 )
Norm@50keV  : 1.79939E-03    ( -6.00058e-05   5.99274e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.96 using 59 PHA bins.
# Reduced chi-squared =          1.052 for     57 degrees of freedom 
# Null hypothesis probability =   3.689336e-01
 
Photon flux (15-150 keV)    in 631.1 sec: 0.230111 ( -0.00831353  0.00835922 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.06413e-05 ( -3.77865e-07  3.79528e-07 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-209.916000 350.562700
351.480000 422.128000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.58440     ( -0.209275   0.0648253 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 1.80197E-03    ( -5.96005e-05   0.000443984 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.97 using 59 PHA bins.
# Reduced chi-squared =          1.071 for     56 degrees of freedom 
# Null hypothesis probability =   3.337109e-01
 
Photon flux (15-150 keV)    in 631.1 sec: 0.230138 ( -0.008459  0.008196 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.83065e-16 ( 0  0 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
-209.916000 350.562700
351.480000 422.128000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.30053   ( 1.30153   1.30153 )
beta        : -1.58415    ( -0.065939   0.0657031 )
Epeak [keV] : 32.4672      ( -31.8089 -31.8089 )
Norm@50keV   : 3.48879E-03    ( -0.00124275   0.249213 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.96 using 59 PHA bins.
# Reduced chi-squared =          1.090 for     55 degrees of freedom 
# Null hypothesis probability =   3.006755e-01
 
Photon flux (15-150 keV)    in 631.1 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]    : 15.3635  (  )
R^2/D10^2   : 2.21303E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         280.37 using 59 PHA bins.
# Reduced chi-squared =         4.9187 for     57 degrees of freedom 
# Null hypothesis probability =   3.078795e-31
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.873e-07   5.058e-08
25- 50  2.791e-06   1.231e-07
50-150  4.530e-06   3.042e-07
15-150  8.009e-06   3.124e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-32.2007      -200)
Norm        : 0.921290       (-0.0304018     0.0304018)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.64 using 59 PHA bins.
# Reduced chi-squared =          1.152 for     57 degrees of freedom 
# Null hypothesis probability =   2.023278e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.448e-06   5.901e-08
25- 50  2.785e-06   1.149e-07
50-150  6.107e-06   2.262e-07
15-150  1.034e-05   4.355e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.00308        (-0.857857      0.936606)
R1^2/D10^2  : 0.248282        (-0.0871274      0.152129)
kT2 [keV]   : 27.5989        (-3.36829      4.88186)
R2^2/D10^2  : 2.31292E-03    (-0.000993318   0.00138593)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.76 using 59 PHA bins.
# Reduced chi-squared =          1.305 for     55 degrees of freedom 
# Null hypothesis probability =   6.402076e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.418e-06   1.521e-07
25- 50  2.781e-06   2.054e-07
50-150  6.299e-06   7.718e-07
15-150  1.050e-05   8.835e-07

Peak spectrum fit

Power-law model
Time interval is from  374.464 sec. to  375.464 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.72346     ( -0.520698   0.537064 )
Norm@50keV  : 6.41721E-03    ( -0.00191943   0.00181381 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.67 using 59 PHA bins.
# Reduced chi-squared =         0.6959 for     57 degrees of freedom 
# Null hypothesis probability =   9.608871e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.859387 ( -0.227308  0.227813 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.9312e-08 ( -1.76971e-08  1.83847e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  374.464 sec. to  375.464 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.71909     ( -1.16806   0.543069 )
Epeak [keV] : 9999.32      ( -9999.35 -9999.36 )
Norm@50keV  : 6.43231E-03    ( -0.00193841   0.0213493 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.67 using 59 PHA bins.
# Reduced chi-squared =         0.7084 for     56 degrees of freedom 
# Null hypothesis probability =   9.516107e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.863254 ( -0.115969  0.224456 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.91276e-08 ( -1.76242e-08  1.91354e-08 ) ergs/cm2
 
Band function
Time interval is from  374.464 sec. to  375.464 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.96089   ( -4.96089   -4.96089 )
beta        : -1.81009    ( -0.813483   0.570027 )
Epeak [keV] : 21.7727      ( -21.7727 46.9511 )
Norm@50keV   : 1887.22    ( -486.724   8.60533e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.37 using 59 PHA bins.
# Reduced chi-squared =         0.7158 for     55 degrees of freedom 
# Null hypothesis probability =   9.447473e-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]    : 10.2186  (-3.99075  10.3775)
R^2/D10^2   : 0.345141  (-0.332221   2.00624)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.89 using 59 PHA bins.
# Reduced chi-squared =         0.8402 for     57 degrees of freedom 
# Null hypothesis probability =   7.995364e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.392e-09   4.573e-09
25- 50  1.894e-08   1.126e-08
50-150  1.052e-08   7.661e-09
15-150  3.686e-08   2.250e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 160.180       (-158.382      -158.382)
Norm        : 3.43935       (-0.946179     1.90898)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.52 using 59 PHA bins.
# Reduced chi-squared =         0.7109 for     57 degrees of freedom 
# Null hypothesis probability =   9.515263e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.781e-09   5.160e-09
25- 50  1.643e-08   9.525e-09
50-150  3.330e-08   2.030e-08
15-150  5.851e-08   3.474e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.71862        (-1.93905      3.47778)
R1^2/D10^2  : 2.75457        (-2.24844      7.14655)
kT2 [keV]   : 36.2914        (-32.5159      -36.2961)
R2^2/D10^2  : 3.83157E-03    (-0.0036438   0.0193591)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.78 using 59 PHA bins.
# Reduced chi-squared =         0.6868 for     55 degrees of freedom 
# Null hypothesis probability =   9.631638e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.183e-08   6.895e-09
25- 50  1.460e-08   8.060e-09
50-150  3.964e-08   2.372e-08
15-150  6.607e-08   3.609e-08
Plot creation:
Wed Mar 14 19:47:42 EDT 2018