batgrbproduct analysis for trigger=814129

batgrbproduct Analysis for Trigger=814129

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu Mar 15 00:26:45 EDT 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger814129/GCN5_download_cron
======================================================================

  Trigger: 00814129      Segment: 000

  BAT Trigger Time: 542681032   [s; MET]
      Trigger Stop: 542681112   [s; MET]
               UTC: 2018-03-14T00:43:31.380160    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 99.2763679701429   Dec: -24.4913623818303  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    24.03
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    24.03

  Flight Position:   [ source = BAT ]
    RA: 99.2763679701429   Dec: -24.4913623818303  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 99.2082934738553   Dec: -24.5299081511404  [deg; J2000]  
        { 06h 36m 50.0s , -24d 31' 47.7" }
         +/- 3.10105540177343 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.63090902565356 [arcmin] (formal 1-sigma fit error)
    SNR: 6.03895669680274
 
  Angular difference between Flight and Ground position is 4.377258 arcmin
 
  Partial Coding Fraction: 0.2480469    [ including projection effects ]

  Duration
     T90: 51.2320001125336 +/- 22.2996266516377
        Measured from: -9.78399991989136
                   to: 41.4480001926422     [s; relative to TRIGTIME]
     T50: 10.7200000286102 +/- 0.622356809418835
        Measured from: -1.57599985599518
                   to: 9.14400017261505     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 3.05200004577637     
                   to: 4.05200004577637     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -11.7999999523163     
                   to: 109.751999974251     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     3.623290   6.050423   5.042901   1.145069
           0.150484   0.161926   0.143439   0.115543 [error]
 Peak      0.164562   0.399911   0.324899   0.028739
           0.018953   0.023835   0.021362   0.012194 [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 1.49e-06 2.73e-06 3.85e-06 1.14e-05 1.10e-05 1.95e-05   erg/cm2
              Error 8.85e-08 9.77e-08 1.45e-07 9.42e-07 3.62e-07 1.03e-06   erg/cm2
Peak flux Power-law 2.65e+00 2.62e+00 1.81e+00 1.98e+00 7.86e+00 9.05e+00   ph/cm2/s
              Error 2.98e-01 2.02e-01 1.53e-01 3.06e-01 5.87e-01 6.58e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.28e-06 2.86e-06 4.08e-06 5.25e-06 1.06e-05 1.35e-05   erg/cm2
              Error 1.10e-07 1.12e-07 1.71e-07 1.33e-06 3.90e-07 1.35e-06   erg/cm2
Peak flux Cutoff-PL 1.70e+00 3.25e+00 2.35e+00 4.54e-01 7.69e+00 7.75e+00   ph/cm2/s
              Error 3.47e-01 2.76e-01 2.20e-01 1.71e-01 5.89e-01 6.08e-01   ph/cm2/s
 
Fluence        Band 1.25e-06 2.88e-06 4.01e-06 7.66e-06 1.06e-05 1.58e-05   erg/cm2
              Error 1.43e-07 -------- 2.84e-07 -------- 3.97e-07 --------   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    1.503    0.055    -      -           9.55e-03 3.00e-04   72.570 57
CPL   0.835    0.246      94.9   17.8      1.95e-02 5.10e-03   47.720 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.530    0.101    -      -           6.25e-02 4.57e-03   96.580 57
CPL  -0.829    0.663      62.6    5.3      9.03e-01 7.43e-01   40.180 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: 20.800000 sec.
T50 in the 50-300 keV band: 9.280000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  121.552  -11.800  109.752
T90    51.232   -9.784   41.448
T50    10.720   -1.576    9.144
Peak    1.000    3.052    4.052

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   99.2083 -24.5299 0.0319   42.3   35.8      17.4726     6.0  TRIG_00814129       
------------------------------------------
 
Foreground time interval of the image:
-11.800  86.101 (delta_t =  97.901 [sec])
Background time interval of the image:
-12.499 -11.800 (delta_t =   0.699 [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  -11.800 sec. to  109.752 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.50322     ( -0.0547058   0.0546889 )
Norm@50keV  : 9.55048E-03    ( -0.000300238   0.000300233 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          72.57 using 59 PHA bins.
# Reduced chi-squared =          1.273 for     57 degrees of freedom 
# Null hypothesis probability =   8.005123e-02
 
Photon flux (15-150 keV)    in 121.6 sec: 1.19331 ( -0.0410497  0.0411528 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.10112e-05 ( -3.61474e-07  3.6186e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -11.800 sec. to  109.752 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.834537     ( -0.25251   0.239295 )
Epeak [keV] : 94.8514      ( -12.3825 23.1665 )
Norm@50keV  : 1.95455E-02    ( -0.00431547   0.00589431 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.72 using 59 PHA bins.
# Reduced chi-squared =         0.8522 for     56 degrees of freedom 
# Null hypothesis probability =   7.765936e-01
 
Photon flux (15-150 keV)    in 121.6 sec: 1.14755 ( -0.04353  0.04369 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.06317e-05 ( -3.90956e-07  3.89631e-07 ) ergs/cm2
 
Band function
Time interval is from  -11.800 sec. to  109.752 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.834295   ( -0.260295   1.84032 )
beta        : -8.21351    ( 9.09355   19.0601 )
Epeak [keV] : 94.8609      ( -8.36629 22.8216 )
Norm@50keV   : 1.95463E-02    ( -0.00412837   0.00274644 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.72 using 59 PHA bins.
# Reduced chi-squared =         0.8676 for     55 degrees of freedom 
# Null hypothesis probability =   7.463203e-01
 
Photon flux (15-150 keV)    in 121.6 sec: 1.14558 ( 5.85442  -0.04647 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.06138e-05 ( -1.06129e-05  -4.06302e-07 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 16.5223  (  )
R^2/D10^2   : 9.66616E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         195.98 using 59 PHA bins.
# Reduced chi-squared =         3.4383 for     57 degrees of freedom 
# Null hypothesis probability =   3.825839e-17
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.584e-07   4.183e-08
25- 50  2.846e-06   1.210e-07
50-150  5.495e-06   2.876e-07
15-150  9.000e-06   3.089e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-13.16      -200)
Norm        : 4.92985       (-0.154583     0.154583)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.78 using 59 PHA bins.
# Reduced chi-squared =          1.049 for     57 degrees of freedom 
# Null hypothesis probability =   3.752160e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.493e-06   5.350e-08
25- 50  2.872e-06   9.971e-08
50-150  6.299e-06   2.146e-07
15-150  1.066e-05   3.520e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.21550        (-1.03568      1.11928)
R1^2/D10^2  : 0.639558        (-0.200976      0.335067)
kT2 [keV]   : 26.3549        (-2.83816      4.08281)
R2^2/D10^2  : 1.41324E-02    (-0.00602855   0.00810108)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.79 using 59 PHA bins.
# Reduced chi-squared =         0.8508 for     55 degrees of freedom 
# Null hypothesis probability =   7.766186e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.169e-06   1.505e-07
25- 50  2.946e-06   2.432e-07
50-150  6.494e-06   7.874e-07
15-150  1.061e-05   9.807e-07

Peak spectrum fit

Power-law model
Time interval is from    3.052 sec. to    4.052 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.53017     ( -0.100616   0.101744 )
Norm@50keV  : 6.24658E-02    ( -0.00457689   0.00457204 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          96.58 using 59 PHA bins.
# Reduced chi-squared =          1.694 for     57 degrees of freedom 
# Null hypothesis probability =   8.284275e-04
 
Photon flux (15-150 keV)    in 1 sec: 7.86318 ( -0.586668  0.58724 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.89786e-07 ( -4.53098e-08  4.53931e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    3.052 sec. to    4.052 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.828970     ( -0.707165   0.618303 )
Epeak [keV] : 62.5755      ( -4.69648 5.93848 )
Norm@50keV  : 0.902762    ( -0.443309   1.04281 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.18 using 59 PHA bins.
# Reduced chi-squared =         0.7175 for     56 degrees of freedom 
# Null hypothesis probability =   9.452084e-01
 
Photon flux (15-150 keV)    in 1 sec: 7.69152 ( -0.58778  0.59057 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.75008e-07 ( -4.5993e-08  4.6305e-08 ) ergs/cm2
 
Band function
Time interval is from    3.052 sec. to    4.052 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.866313   ( -0.552348   1.39796 )
beta        : -4.13931    ( 9.77966   19.7795 )
Epeak [keV] : 62.1400      ( -6.39155 5.93019 )
Norm@50keV   : 0.947126    ( -0.477592   2.16482 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.01 using 59 PHA bins.
# Reduced chi-squared =         0.7274 for     55 degrees of freedom 
# Null hypothesis probability =   9.357415e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.75647e-07 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 15.5304  (-0.950037  1.00845)
R^2/D10^2   : 0.931355  (-0.191924   0.237467)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.64 using 59 PHA bins.
# Reduced chi-squared =         0.7481 for     57 degrees of freedom 
# Null hypothesis probability =   9.212702e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.674e-08   5.650e-09
25- 50  1.916e-07   1.830e-08
50-150  3.193e-07   3.615e-08
15-150  5.576e-07   4.415e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 188.066       (-47.5188      -188.104)
Norm        : 33.2488       (-2.47775     2.62075)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          80.64 using 59 PHA bins.
# Reduced chi-squared =          1.415 for     57 degrees of freedom 
# Null hypothesis probability =   2.138270e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.341e-08   8.435e-09
25- 50  1.593e-07   2.760e-08
50-150  3.426e-07   1.450e-07
15-150  5.854e-07   1.857e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.38016        (-8.38514      -8.38514)
R1^2/D10^2  : 1.61235        (-1.61086      -1.61086)
kT2 [keV]   : 17.2553        (-2.06127      -17.2588)
R2^2/D10^2  : 0.550043    (-0.549369   0.456423)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.25 using 59 PHA bins.
# Reduced chi-squared =         0.7317 for     55 degrees of freedom 
# Null hypothesis probability =   9.321081e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.436e-08   2.953e-08
25- 50  1.888e-07   9.950e-08
50-150  3.298e-07   1.792e-07
15-150  5.730e-07   2.997e-07
Plot creation:
Thu Mar 15 00:34:01 EDT 2018