batgrbproduct analysis for trigger=854578

batgrbproduct Analysis for Trigger=854578

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Aug 22 17:56:31 EDT 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger854578/GCN5_download_cron
======================================================================

  Trigger: 00854578      Segment: 000

  BAT Trigger Time: 556562456   [s; MET]
      Trigger Stop: 556562576   [s; MET]
               UTC: 2018-08-21T16:40:34.535440    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 7.76306090448872   Dec: -38.6188964142254  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.81
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    7.81

  Flight Position:   [ source = BAT ]
    RA: 7.76306090448872   Dec: -38.6188964142254  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 7.73946182081908   Dec: -38.6116503652198  [deg; J2000]  
        { 00h 30m 57.5s , -38d 36' 41.9" }
         +/- 2.32422064565329 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.16962344543973 [arcmin] (formal 1-sigma fit error)
    SNR: 9.11727419835991
 
  Angular difference between Flight and Ground position is 1.188713 arcmin
 
  Partial Coding Fraction: 0.1757812    [ including projection effects ]

  Duration
     T90: 64 +/- 22.6274169979695
        Measured from: 1.00000011920929
                   to: 65.0000001192093     [s; relative to TRIGTIME]
     T50: 32 +/- 16
        Measured from: 17.0000001192093
                   to: 49.0000001192093     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 56.5     
                   to: 57.5     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 1     
                   to: 65     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.672748   0.675941   0.625552  -0.019488
           0.120082   0.124042   0.107381   0.089560 [error]
 Peak      0.007585   0.021611   0.029264  -0.014046
           0.013926   0.015070   0.014623   0.011098 [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 2.40e-07 3.69e-07 4.28e-07 9.53e-07 1.32e-06 1.99e-06   erg/cm2
              Error 6.48e-08 6.33e-08 1.09e-07 5.07e-07 2.54e-07 6.05e-07   erg/cm2
Peak flux Power-law 1.29e-01 8.09e-02 3.28e-02 1.79e-02 2.51e-01 2.60e-01   ph/cm2/s
              Error 1.85e-01 1.03e-01 5.20e-02 9.02e-02 3.19e-01 3.30e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.40e-07 3.70e-07 4.28e-07 8.60e-07 1.32e-06 1.84e-06   erg/cm2
              Error 6.98e-08 6.27e-08 1.13e-07 5.25e-07 2.59e-07 7.34e-07   erg/cm2
Peak flux Cutoff-PL 2.69e-03 8.69e-02 1.64e-01 5.93e-03 2.60e-01 2.60e-01   ph/cm2/s
              Error 1.08e-01 1.55e-01 1.59e-01 2.19e-02 3.06e-01 3.07e-01   ph/cm2/s
 
Fluence        Band 2.35e-07 3.75e-07 4.36e-07 8.30e-07 1.33e-06 1.88e-06   erg/cm2
              Error -------- -------- 1.13e-07 -------- -------- --------   erg/cm2
Peak flux      Band 6.35e-02 1.55e-01 1.04e-01 1.05e-02 3.31e-01 3.32e-01   ph/cm2/s
              Error 1.40e-01 1.63e-01 1.35e-01 -------- 3.24e-01 --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.788    0.315    -      -           2.24e-03 4.21e-04   56.770 57
CPL   1.792    0.618    9999.4   -0.0      2.23e-03 4.72e-03   56.770 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.313    0.000    -      -           1.43e-03 2.00e-03   68.840 57
CPL  -9.977    0.942      64.7   25.4      6.21e+01 1.97e+05   66.120 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: 43.008000 sec.
T50 in the 50-300 keV band: 23.936000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   64.000    1.000   65.000
T90    64.000    1.000   65.000
T50    32.000   17.000   49.000
Peak    1.000   56.500   57.500

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
    7.7395 -38.6117 0.0212   44.8   32.6       2.3456     9.1  TRIG_00854578       
------------------------------------------
 
Foreground time interval of the image:
  1.000  65.000 (delta_t =  64.000 [sec])
Background time interval of the image:
-239.000   1.000 (delta_t = 240.000 [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    1.000 sec. to   65.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.78774     ( -0.304966   0.326004 )
Norm@50keV  : 2.23633E-03    ( -0.00042765   0.000413999 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.77 using 59 PHA bins.
# Reduced chi-squared =         0.9960 for     57 degrees of freedom 
# Null hypothesis probability =   4.836908e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.306709 ( -0.0532092  0.0533469 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.31823e-06 ( -2.52716e-07  2.56116e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.000 sec. to   65.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.79235     ( -0.886668   0.349687 )
Epeak [keV] : 9999.36      ( -9999.35 -9999.36 )
Norm@50keV  : 2.22594E-03    ( -0.00223744   0.00721153 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.77 using 59 PHA bins.
# Reduced chi-squared =          1.014 for     56 degrees of freedom 
# Null hypothesis probability =   4.460574e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.306703 ( -0.053302  0.052957 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.31753e-06 ( -2.62342e-07  2.55322e-07 ) ergs/cm2
 
Band function
Time interval is from    1.000 sec. to   65.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -2.89412   ( 2.89412   2.89412 )
beta        : -1.78774    ( -0.326003   0.304967 )
Epeak [keV] : 80.1422      ( -80.1422 -80.1422 )
Norm@50keV   : 0.303949    ( -0.0581237   0.0562687 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.77 using 59 PHA bins.
# Reduced chi-squared =          1.032 for     55 degrees of freedom 
# Null hypothesis probability =   4.088952e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.309664 ( 6.69034  -0.309664 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.32881e-06 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 13.9200  (-2.87075  3.47067)
R^2/D10^2   : 4.22629E-02  (-0.0234732   0.0554916)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.41 using 59 PHA bins.
# Reduced chi-squared =          1.200 for     57 degrees of freedom 
# Null hypothesis probability =   1.432061e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.108e-07   4.084e-08
25- 50  4.096e-07   1.235e-07
50-150  5.211e-07   2.064e-07
15-150  1.041e-06   2.988e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 126.071       (-60.4045      -123.755)
Norm        : 1.26839       (-0.252321     0.379781)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.38 using 59 PHA bins.
# Reduced chi-squared =          1.007 for     57 degrees of freedom 
# Null hypothesis probability =   4.608287e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.110e-07   1.155e-07
25- 50  3.806e-07   1.923e-07
50-150  6.956e-07   4.515e-07
15-150  1.287e-06   7.608e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.80737        (-1.70312      2.56786)
R1^2/D10^2  : 4.44728        (-3.94596      148.745)
kT2 [keV]   : 18.9010        (-4.52474      8.21467)
R2^2/D10^2  : 1.20871E-02    (-0.00897909   0.02221)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.45 using 59 PHA bins.
# Reduced chi-squared =          1.008 for     55 degrees of freedom 
# Null hypothesis probability =   4.574610e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.572e-07   1.386e-07
25- 50  3.242e-07   1.449e-07
50-150  6.845e-07   4.025e-07
15-150  1.266e-06   5.676e-07

Peak spectrum fit

Power-law model
Time interval is from   56.500 sec. to   57.500 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.31307     ( -2.30636   -2.30636 )
Norm@50keV  : 1.43307E-03    ( -0.00143457   0.00257052 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.84 using 59 PHA bins.
# Reduced chi-squared =          1.208 for     57 degrees of freedom 
# Null hypothesis probability =   1.352584e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.251484 ( -0.251484  0.387015 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.37283e-08 ( -1.37283e-08  2.31648e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   56.500 sec. to   57.500 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -9.97733     ( 9.98872   11.8718 )
Epeak [keV] : 64.6674      ( -28.433 22.3906 )
Norm@50keV  : 62.0637    ( -62.0106   394034 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.12 using 59 PHA bins.
# Reduced chi-squared =          1.181 for     56 degrees of freedom 
# Null hypothesis probability =   1.670002e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.259826 0.257047 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.92721e-16 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from   56.500 sec. to   57.500 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -6.91778   -4.92881 )
beta        : -10.0000    ( 10   10 )
Epeak [keV] : 61.0191      ( -34.8029 28.2313 )
Norm@50keV   : 1.75228    ( -1.75306   265.397 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.42 using 59 PHA bins.
# Reduced chi-squared =          1.208 for     55 degrees of freedom 
# Null hypothesis probability =   1.392495e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.331464 ( 6.66854  -0.331464 ) 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]    : 14.0824  (-5.91413  12.5849)
R^2/D10^2   : 5.87952E-02  (-0.0589301   2.0572)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.91 using 59 PHA bins.
# Reduced chi-squared =          1.174 for     57 degrees of freedom 
# Null hypothesis probability =   1.733994e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.462e-09   1.929e-09
25- 50  9.209e-09   6.335e-09
50-150  1.206e-08   1.174e-08
15-150  2.373e-08   1.979e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 53.4048       (-53.4048      -53.4048)
Norm        : 1.73461       (-1.73461     -1.73461)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.24 using 59 PHA bins.
# Reduced chi-squared =          1.197 for     57 degrees of freedom 
# Null hypothesis probability =   1.464438e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.302e-09   3.598e-09
25- 50  6.321e-09   5.355e-09
50-150  6.522e-09   9.670e-09
15-150  1.714e-08   1.685e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 0.761805        (-0.826409      -0.826409)
R1^2/D10^2  : 1.92145E+06        (-7.15167e+06      5.69619e+11)
kT2 [keV]   : 13.4651        (-5.94862      11.9779)
R2^2/D10^2  : 6.87832E-02    (-0.0536253   1.20994)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.89 using 59 PHA bins.
# Reduced chi-squared =          1.216 for     55 degrees of freedom 
# Null hypothesis probability =   1.305721e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.669e-09   2.008e-09
25- 50  9.444e-09   7.570e-09
50-150  1.104e-08   1.197e-08
15-150  2.316e-08   1.908e-08
Plot creation:
Wed Aug 22 18:02:24 EDT 2018