batgrbproduct analysis for trigger=814259

batgrbproduct Analysis for Trigger=814259

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu Mar 15 21:28:46 EDT 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger814259/GCN5_download_cron
======================================================================

  Trigger: 00814259      Segment: 000

  BAT Trigger Time: 542747512   [s; MET]
      Trigger Stop: 542747576   [s; MET]
               UTC: 2018-03-14T19:11:31.376140    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 275.089270979342   Dec: 7.18088078146362  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    14.47
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    14.47

  Flight Position:   [ source = BAT ]
    RA: 275.089270979342   Dec: 7.18088078146362  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 275.140962974864   Dec: 7.21525148550732  [deg; J2000]  
        { 18h 20m 33.8s , +07d 12' 54.9" }
         +/- nan [arcmin] (estimated 90% radius based on SNR)
         +/- 1.74425654071277 [arcmin] (formal 1-sigma fit error)
    SNR: -7.01920240763034
 
  Angular difference between Flight and Ground position is 3.704220 arcmin
 
  Partial Coding Fraction: 0.6171875    [ including projection effects ]

  Duration
     T90: 1035.58399999142 +/- 517.284443132238
        Measured from: -122.359999895096
                   to: 913.224000096321     [s; relative to TRIGTIME]
     T50: 1035.58399999142 +/- 1033.38630794233
        Measured from: -122.359999895096
                   to: 913.224000096321     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 318.94000005722     
                   to: 319.94000005722     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -122.360000014305     
                   to: 913.223999977112     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total    11.307782  15.729050  11.715128   2.284292
           0.257996   0.244755   0.206459   0.172987 [error]
 Peak      0.038401   0.051539   0.029470   0.008845
           0.007438   0.007307   0.006108   0.004921 [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 4.15e-06 6.90e-06 8.71e-06 2.19e-05 2.59e-05 4.17e-05   erg/cm2
              Error 1.81e-07 1.74e-07 2.23e-07 1.29e-06 5.57e-07 1.39e-06   erg/cm2
Peak flux Power-law 4.02e-01 3.74e-01 2.42e-01 2.41e-01 1.12e+00 1.26e+00   ph/cm2/s
              Error 1.10e-01 6.34e-02 5.02e-02 1.03e-01 1.84e-01 2.00e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.66e-06 7.05e-06 9.07e-06 1.28e-05 2.51e-05 3.25e-05   erg/cm2
              Error 2.40e-07 1.87e-07 2.59e-07 2.32e-06 6.21e-07 2.40e-06   erg/cm2
Peak flux Cutoff-PL 4.03e-01 3.75e-01 2.42e-01 2.38e-01 1.12e+00 1.26e+00   ph/cm2/s
              Error 1.15e-01 6.64e-02 5.10e-02 1.50e-01 1.84e-01 2.01e-01   ph/cm2/s
 
Fluence        Band 3.63e-06 7.02e-06 9.05e-06 1.28e-05 2.51e-05 3.26e-05   erg/cm2
              Error 1.68e-07 -------- -------- -------- 6.08e-07 --------   erg/cm2
Peak flux      Band 3.18e-01 3.22e-01 2.03e-01 1.31e-01 9.14e-01 9.75e-01   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    1.664    0.040    -      -           2.70e-03 5.72e-05   54.820 57
CPL   1.187    0.175      95.5   17.2      4.40e-03 7.78e-04   31.030 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.630    0.284    -      -           8.62e-03 1.42e-03   45.180 57
CPL   1.636    0.391    9999.4   -0.0      8.61e-03 0.00e+00   45.180 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: 77.888000 sec.
T50 in the 50-300 keV band: 44.800000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100 1035.580 -122.360  913.224
T90  1035.580 -122.360  913.224
T50  1035.580 -122.360  913.224
Peak    1.000  318.940  319.940

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  275.1410  +7.2153 0.0272   37.2 -171.5      -5.9561    -7.0  TRIG_00814259       
------------------------------------------
 
Foreground time interval of the image:
-122.360  73.801 (delta_t = 196.161 [sec])
Background time interval of the image:
-142.299 -122.360 (delta_t =  19.939 [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
-122.360000 270.140000
271.000000 588.510000
590.000000 913.224000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.66441     ( -0.0402995   0.0403322 )
Norm@50keV  : 2.69867E-03    ( -5.72346e-05   5.72346e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.82 using 59 PHA bins.
# Reduced chi-squared =         0.9617 for     57 degrees of freedom 
# Null hypothesis probability =   5.573517e-01
 
Photon flux (15-150 keV)    in 1033 sec: 0.354073 ( -0.00892157  0.0089626 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.58906e-05 ( -5.56812e-07  5.56998e-07 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-122.360000 270.140000
271.000000 588.510000
590.000000 913.224000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.18656     ( -0.178666   0.172182 )
Epeak [keV] : 95.4669      ( -11.8392 22.5729 )
Norm@50keV  : 4.40372E-03    ( -0.000695762   0.000859698 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          31.03 using 59 PHA bins.
# Reduced chi-squared =         0.5542 for     56 degrees of freedom 
# Null hypothesis probability =   9.972671e-01
 
Photon flux (15-150 keV)    in 1033 sec: 0.339081 ( -0.010101  0.010179 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.51281e-05 ( -6.2135e-07  6.20007e-07 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
-122.360000 270.140000
271.000000 588.510000
590.000000 913.224000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.18655   ( -0.174749   0.16842 )
beta        : -10.0000    ( 10   0 )
Epeak [keV] : 95.4504      ( -11.8289 22.5707 )
Norm@50keV   : 4.40328E-03    ( -0.000695703   0.00086006 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          31.03 using 59 PHA bins.
# Reduced chi-squared =         0.5643 for     55 degrees of freedom 
# Null hypothesis probability =   9.962480e-01
 
Photon flux (15-150 keV)    in 1033 sec: 0.340893 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.51104e-05 ( -2.51031e-05  -6.22176e-07 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 16.2796  (  )
R^2/D10^2   : 2.75659E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         402.45 using 59 PHA bins.
# Reduced chi-squared =         7.0605 for     57 degrees of freedom 
# Null hypothesis probability =   1.844367e-53
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.554e-06   7.179e-08
25- 50  6.637e-06   2.071e-07
50-150  1.237e-05   4.494e-07
15-150  2.056e-05   4.494e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 165.725       (-16.6913      20.1489)
Norm        : 1.42514       (-0.0395713     0.0415585)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          31.95 using 59 PHA bins.
# Reduced chi-squared =         0.5605 for     57 degrees of freedom 
# Null hypothesis probability =   9.970593e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.731e-06   1.823e-07
25- 50  7.019e-06   3.419e-07
50-150  1.445e-05   3.095e-06
15-150  2.520e-05   3.238e-06
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.89393        (-0.598283      0.643448)
R1^2/D10^2  : 0.366159        (-0.100458      0.149456)
kT2 [keV]   : 23.7979        (-1.42265      1.71269)
R2^2/D10^2  : 5.65496E-03    (-0.0013686   0.00158858)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          31.44 using 59 PHA bins.
# Reduced chi-squared =         0.5717 for     55 degrees of freedom 
# Null hypothesis probability =   9.955574e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.431e-06   2.949e-07
25- 50  7.037e-06   2.991e-07
50-150  1.435e-05   6.921e-07
15-150  2.482e-05   9.504e-07

Peak spectrum fit

Power-law model
Time interval is from  318.940 sec. to  319.940 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.62986     ( -0.281451   0.286576 )
Norm@50keV  : 8.61653E-03    ( -0.00142632   0.00140851 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.18 using 59 PHA bins.
# Reduced chi-squared =         0.7926 for     57 degrees of freedom 
# Null hypothesis probability =   8.708996e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.11775 ( -0.183712  0.184412 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.03061e-08 ( -1.39675e-08  1.41121e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  318.940 sec. to  319.940 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.63592     ( -0.500361   0.282571 )
Epeak [keV] : 9999.36      ( -9999.35 -9999.36 )
Norm@50keV  : 8.60571E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.18 using 59 PHA bins.
# Reduced chi-squared =         0.8069 for     56 degrees of freedom 
# Null hypothesis probability =   8.490305e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.11812 ( -0.184147  0.18346 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.0084e-08 ( -1.40672e-08  1.4198e-08 ) ergs/cm2
 
Band function
Time interval is from  318.940 sec. to  319.940 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.96824   ( -4.96824   -4.96824 )
beta        : -1.69484    ( -0.336242   0.30794 )
Epeak [keV] : 22.4383      ( -22.4383 8.45653 )
Norm@50keV   : 1913.49    ( -301.858   6.81261e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.66 using 59 PHA bins.
# Reduced chi-squared =         0.8121 for     55 degrees of freedom 
# Null hypothesis probability =   8.390089e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.914061 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.46671e-08 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 12.5546  (-2.46529  3.37475)
R^2/D10^2   : 0.228809  (-0.133106   0.284075)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.37 using 59 PHA bins.
# Reduced chi-squared =          1.024 for     57 degrees of freedom 
# Null hypothesis probability =   4.249038e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.647e-09   2.441e-09
25- 50  2.535e-08   6.865e-09
50-150  2.473e-08   9.365e-09
15-150  5.773e-08   1.525e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 173.445       (-89.302      -172.818)
Norm        : 4.53972       (-0.764336     1.03811)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.83 using 59 PHA bins.
# Reduced chi-squared =         0.8040 for     57 degrees of freedom 
# Null hypothesis probability =   8.555076e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.133e-08   6.445e-09
25- 50  2.160e-08   1.163e-08
50-150  4.620e-08   2.556e-08
15-150  7.912e-08   4.274e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.32647        (-2.41074      2.66409)
R1^2/D10^2  : 0.834022        (-0.458693      1.52259)
kT2 [keV]   : 48.6670        (-32.917      -58.5766)
R2^2/D10^2  : 1.73001E-03    (-0.00108073   0.011834)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.37 using 59 PHA bins.
# Reduced chi-squared =         0.7886 for     55 degrees of freedom 
# Null hypothesis probability =   8.714190e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.121e-08   6.554e-09
25- 50  2.343e-08   1.314e-08
50-150  4.506e-08   2.609e-08
15-150  7.970e-08   3.878e-08
Plot creation:
Thu Mar 15 21:36:03 EDT 2018