batgrbproduct analysis for trigger=835200

batgrbproduct Analysis for Trigger=835200

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Jun  3 13:25:18 EDT 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger835200/GCN5_download_cron
======================================================================

  Trigger: 00835200      Segment: 000

  BAT Trigger Time: 549620112   [s; MET]
      Trigger Stop: 549620176   [s; MET]
               UTC: 2018-06-02T08:14:50.959800    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 142.33930428647   Dec: 32.0927735904  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.3
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    7.3

  Flight Position:   [ source = BAT ]
    RA: 142.33930428647   Dec: 32.0927735904  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 142.343145130267   Dec: 32.0800363469667  [deg; J2000]  
        { 09h 29m 22.4s , +32d 04' 48.1" }
         +/- 1.47379007208158 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.57603369570539 [arcmin] (formal 1-sigma fit error)
    SNR: 17.4781739052826
 
  Angular difference between Flight and Ground position is 0.788782 arcmin
 
  Partial Coding Fraction: 0.7890625    [ including projection effects ]

  Duration
     T90: 45.4399999380112 +/- 7.05970077833043
        Measured from: -27.2119998931885
                   to: 18.2280000448227     [s; relative to TRIGTIME]
     T50: 14.7960000038147 +/- 2.79151639589376
        Measured from: -19.5639998912811
                   to: -4.76799988746643     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -20.12399995327     
                   to: -19.12399995327     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -29.3159999847412     
                   to: 25.7319999933243     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.829484   1.108515   0.619121   0.130695
           0.052390   0.054881   0.048252   0.042482 [error]
 Peak      0.026681   0.046901   0.039058   0.006827
           0.007407   0.007778   0.006928   0.005651 [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 2.64e-07 4.25e-07 5.18e-07 1.24e-06 1.56e-06 2.45e-06   erg/cm2
              Error 2.58e-08 2.61e-08 4.77e-08 2.38e-07 1.11e-07 2.80e-07   erg/cm2
Peak flux Power-law 3.00e-01 3.08e-01 2.23e-01 2.59e-01 9.32e-01 1.09e+00   ph/cm2/s
              Error 9.04e-02 6.07e-02 5.36e-02 1.23e-01 1.77e-01 2.12e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.50e-07 4.46e-07 5.18e-07 6.04e-07 1.49e-06 1.82e-06   erg/cm2
              Error 2.97e-08 3.42e-08 5.12e-08 4.59e-07 1.33e-07 4.82e-07   erg/cm2
Peak flux Cutoff-PL 2.38e-01 3.51e-01 2.43e-01 7.20e-02 8.88e-01 9.04e-01   ph/cm2/s
              Error 1.07e-01 7.76e-02 6.49e-02 -------- 1.82e-01 2.08e-01   ph/cm2/s
 
Fluence        Band 2.35e-07 4.62e-07 4.96e-07 9.61e-07 1.50e-06 2.16e-06   erg/cm2
              Error -------- -------- 5.20e-08 -------- 1.20e-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    1.715    0.113    -      -           3.07e-03 2.06e-04   48.160 57
CPL   1.280    0.485      75.1  -27.5      5.28e-03 3.47e-03   45.500 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.466    0.306    -      -           7.53e-03 1.47e-03   54.330 57
CPL   0.065    1.573      67.1  114.8      3.97e-02 1.61e-01   51.030 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: 21.184000 sec.
T50 in the 50-300 keV band: 12.480000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   55.048  -29.316   25.732
T90    45.440  -27.212   18.228
T50    14.796  -19.564   -4.768
Peak    1.000  -20.124  -19.124

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  142.3431 +32.0800 0.0110   19.7  128.2       1.7356    17.5  TRIG_00835200       
------------------------------------------
 
Foreground time interval of the image:
-16.899  25.732 (delta_t =  42.631 [sec])
Background time interval of the image:

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  -29.316 sec. to   25.732 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.71522     ( -0.111776   0.113708 )
Norm@50keV  : 3.06505E-03    ( -0.000207352   0.00020546 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.16 using 59 PHA bins.
# Reduced chi-squared =         0.8449 for     57 degrees of freedom 
# Null hypothesis probability =   7.916064e-01
 
Photon flux (15-150 keV)    in 55.05 sec: 0.409262 ( -0.0252223  0.0252425 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.56044e-06 ( -1.10524e-07  1.11684e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -29.316 sec. to   25.732 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.28009     ( -0.515415   0.453881 )
Epeak [keV] : 75.0780      ( -20.0278 -75.0798 )
Norm@50keV  : 5.27616E-03    ( -0.00223971   0.00470747 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.50 using 59 PHA bins.
# Reduced chi-squared =         0.8125 for     56 degrees of freedom 
# Null hypothesis probability =   8.407690e-01
 
Photon flux (15-150 keV)    in 55.05 sec: 0.400174 ( -0.026921  0.026867 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.49016e-06 ( -1.3256e-07  1.33304e-07 ) ergs/cm2
 
Band function
Time interval is from  -29.316 sec. to   25.732 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.417888   ( -1.077   0.333024 )
beta        : -1.92890    ( -0.463778   0.213446 )
Epeak [keV] : 36.2169      ( -9.86068 34.4968 )
Norm@50keV   : 7.57617E-02    ( -0.0744942   88.0754 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.46 using 59 PHA bins.
# Reduced chi-squared =         0.7719 for     55 degrees of freedom 
# Null hypothesis probability =   8.918397e-01
 
Photon flux (15-150 keV)    in 55.05 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.4984e-06 ( -1.49802e-06  -1.19145e-07 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 11.7979  (-0.869314  0.9601)
R^2/D10^2   : 0.104135  (-0.0261553   0.0341641)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          92.01 using 59 PHA bins.
# Reduced chi-squared =          1.614 for     57 degrees of freedom 
# Null hypothesis probability =   2.273994e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.685e-07   1.594e-08
25- 50  5.197e-07   3.628e-08
50-150  4.300e-07   6.504e-08
15-150  1.118e-06   8.450e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 120.129       (-28.1603      44.1849)
Norm        : 1.73808       (-0.135473     0.156574)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.38 using 59 PHA bins.
# Reduced chi-squared =         0.7962 for     57 degrees of freedom 
# Null hypothesis probability =   8.662457e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.492e-07   2.323e-08
25- 50  4.459e-07   3.870e-08
50-150  7.962e-07   2.628e-07
15-150  1.491e-06   2.937e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.83639        (-1.26839      1.26306)
R1^2/D10^2  : 0.349079        (-0.131118      0.259194)
kT2 [keV]   : 29.5679        (-7.95688      18.2263)
R2^2/D10^2  : 2.53548E-03    (-0.00195613   0.0055148)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.36 using 59 PHA bins.
# Reduced chi-squared =         0.7702 for     55 degrees of freedom 
# Null hypothesis probability =   8.938592e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.293e-07   4.354e-08
25- 50  4.727e-07   9.103e-08
50-150  8.204e-07   3.768e-07
15-150  1.522e-06   4.495e-07

Peak spectrum fit

Power-law model
Time interval is from  -20.124 sec. to  -19.124 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.46619     ( -0.302566   0.30934 )
Norm@50keV  : 7.53036E-03    ( -0.00147597   0.00146171 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.33 using 59 PHA bins.
# Reduced chi-squared =         0.9532 for     57 degrees of freedom 
# Null hypothesis probability =   5.757120e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.931792 ( -0.176521  0.176746 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.18514e-08 ( -1.5265e-08  1.56093e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -20.124 sec. to  -19.124 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 6.51774E-02     ( -1.82367   1.32264 )
Epeak [keV] : 67.0537      ( -17.7906 211.711 )
Norm@50keV  : 3.96837E-02    ( -0.0396837   0.281772 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.03 using 59 PHA bins.
# Reduced chi-squared =         0.9112 for     56 degrees of freedom 
# Null hypothesis probability =   6.632031e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.887815 ( -0.181328  0.181785 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.52414e-08 ( -1.55232e-08  1.66978e-08 ) ergs/cm2
 
Band function
Time interval is from  -20.124 sec. to  -19.124 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.105283   ( -1.2756   1.43553 )
beta        : -9.37154    ( 9.37166   19.3717 )
Epeak [keV] : 68.0344      ( -17.8397 160.498 )
Norm@50keV   : 3.75910E-02    ( -0.037599   4.20527 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.03 using 59 PHA bins.
# Reduced chi-squared =         0.9278 for     55 degrees of freedom 
# Null hypothesis probability =   6.270788e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.521e-08 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 14.9765  (-2.90935  3.6415)
R^2/D10^2   : 0.112551  (-0.0601612   0.126547)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.06 using 59 PHA bins.
# Reduced chi-squared =         0.9309 for     57 degrees of freedom 
# Null hypothesis probability =   6.236225e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.287e-09   1.993e-09
25- 50  2.098e-08   6.780e-09
50-150  3.200e-08   1.213e-08
15-150  5.826e-08   1.717e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-105.849      -199.363)
Norm        : 3.85153       (-0.718179     0.718786)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.19 using 59 PHA bins.
# Reduced chi-squared =         0.9331 for     57 degrees of freedom 
# Null hypothesis probability =   6.188293e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.591e-09   5.635e-09
25- 50  1.845e-08   1.086e-08
50-150  4.046e-08   2.310e-08
15-150  6.850e-08   3.875e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.30605        (-6.3276      -6.3276)
R1^2/D10^2  : 0.869913        (-0.865123      -0.865123)
kT2 [keV]   : 18.8454        (-5.29385      -18.8591)
R2^2/D10^2  : 4.24362E-02    (-0.0423072   0.110986)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.55 using 59 PHA bins.
# Reduced chi-squared =         0.9190 for     55 degrees of freedom 
# Null hypothesis probability =   6.452741e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.891e-09   4.566e-09
25- 50  1.967e-08   1.006e-08
50-150  3.763e-08   2.266e-08
15-150  6.519e-08   3.420e-08
Plot creation:
Sun Jun  3 13:29:45 EDT 2018