batgrbproduct analysis for trigger=742866

batgrbproduct Analysis for Trigger=742866

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Mar 17 23:17:32 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger742866/GCN5_download_cron
======================================================================

  Trigger: 00742866      Segment: 000

  BAT Trigger Time: 511436777.856   [s; MET]
      Trigger Stop: 511436778.88   [s; MET]
               UTC: 2017-03-17T09:45:59.089020    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 93.0878746012199   Dec: 50.5203503865234  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.39
     Image Trigger?:     NO
     Rate S/N Ratio:     10.5356537528527  [ if not an image trigger ]
     Image S/N Ratio:    7.39

  Flight Position:   [ source = BAT ]
    RA: 93.0878746012199   Dec: 50.5203503865234  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 93.087293198964   Dec: 50.5001501163684  [deg; J2000]  
        { 06h 12m 21.0s , +50d 30' 00.5" }
         +/- 0.976158237697783 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.347955597367222 [arcmin] (formal 1-sigma fit error)
    SNR: 31.4839699443792
 
  Angular difference between Flight and Ground position is 1.212219 arcmin
 
  Partial Coding Fraction: 0.4609375    [ including projection effects ]

  Duration
     T90: 11.9360000491142 +/- 4.87496131951583
        Measured from: 0.43200010061264
                   to: 12.3680001497269     [s; relative to TRIGTIME]
     T50: 4.2720000743866 +/- 0.745160363581561
        Measured from: 1.98400008678436
                   to: 6.25600016117096     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.283999979496     
                   to: 2.283999979496     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.287999987602234     
                   to: 18.2879999876022     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.657193   0.968923   0.592492   0.114680
           0.045878   0.047837   0.040575   0.033118 [error]
 Peak      0.108625   0.151580   0.121284   0.039233
           0.011789   0.013504   0.011348   0.008645 [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 2.57e-07 3.99e-07 4.67e-07 1.05e-06 1.43e-06 2.17e-06   erg/cm2
              Error 2.46e-08 2.45e-08 3.98e-08 1.84e-07 9.52e-08 2.20e-07   erg/cm2
Peak flux Power-law 1.19e+00 1.17e+00 8.14e-01 8.91e-01 3.53e+00 4.07e+00   ph/cm2/s
              Error 1.85e-01 1.16e-01 9.29e-02 2.03e-01 3.33e-01 3.75e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.22e-07 4.41e-07 4.83e-07 3.13e-07 1.34e-06 1.46e-06   erg/cm2
              Error 2.92e-08 3.17e-08 4.55e-08 -------- 1.03e-07 1.95e-07   erg/cm2
Peak flux Cutoff-PL 1.12e+00 1.21e+00 8.42e-01 6.39e-01 3.50e+00 3.82e+00   ph/cm2/s
              Error 2.14e-01 1.35e-01 1.07e-01 3.36e-01 3.38e-01 4.97e-01   ph/cm2/s
 
Fluence        Band 2.20e-07 4.39e-07 4.82e-07 3.15e-07 1.34e-06 1.46e-06   erg/cm2
              Error 2.10e-08 -------- 4.14e-08 -------- 9.84e-08 1.91e-07   erg/cm2
Peak flux      Band 1.11e+00 1.21e+00 8.49e-01 6.27e-01 3.49e+00 3.79e+00   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    1.776    0.104    -      -           8.36e-03 5.40e-04   89.590 57
CPL   0.804    0.489      58.8   10.5      2.68e-02 1.69e-02   75.180 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.529    0.152    -      -           2.80e-02 2.62e-03   63.050 57
CPL   1.220    0.492     130.3  -35.9      4.01e-02 2.55e-02   62.080 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: 11.200000 sec.
T50 in the 50-300 keV band: 3.392000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   18.576   -0.288   18.288
T90    11.936    0.432   12.368
T50     4.272    1.984    6.256
Peak    1.000    1.284    2.284

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   93.0873 +50.5002 0.0061   37.6   23.7       2.2594    31.5  TRIG_00742866       
------------------------------------------
 
Foreground time interval of the image:
 -0.288  10.545 (delta_t =  10.833 [sec])
Background time interval of the image:
-239.856  -0.288 (delta_t = 239.568 [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   -0.288 sec. to   18.288 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.77610     ( -0.103262   0.105039 )
Norm@50keV  : 8.36089E-03    ( -0.00054199   0.000538749 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          89.59 using 59 PHA bins.
# Reduced chi-squared =          1.572 for     57 degrees of freedom 
# Null hypothesis probability =   3.789729e-03
 
Photon flux (15-150 keV)    in 18.58 sec: 1.14161 ( -0.0709657  0.0710792 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.43151e-06 ( -9.49222e-08  9.5443e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.288 sec. to   18.288 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.803642     ( -0.516639   0.462135 )
Epeak [keV] : 58.7520      ( -7.49873 13.5778 )
Norm@50keV  : 2.68322E-02    ( -0.0112313   0.0225832 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          75.18 using 59 PHA bins.
# Reduced chi-squared =          1.342 for     56 degrees of freedom 
# Null hypothesis probability =   4.453580e-02
 
Photon flux (15-150 keV)    in 18.58 sec: 1.09198 ( -0.07427  0.0744 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.33995e-06 ( -1.02498e-07  1.03786e-07 ) ergs/cm2
 
Band function
Time interval is from   -0.288 sec. to   18.288 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.803535   ( -0.42572   0.57177 )
beta        : -10.0000    ( 10   20 )
Epeak [keV] : 58.7396      ( -7.49783 13.5796 )
Norm@50keV   : 2.68350E-02    ( -0.0112337   0.0225999 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          75.18 using 59 PHA bins.
# Reduced chi-squared =          1.367 for     55 degrees of freedom 
# Null hypothesis probability =   3.665559e-02
 
Photon flux (15-150 keV)    in 18.58 sec: 1.10162 ( 5.89838  -0.08497 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.33988e-06 ( -1.33975e-06  -1.0266e-07 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 12.8254  (-0.869941  0.936169)
R^2/D10^2   : 0.218335  (-0.0505265   0.0653473)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         112.84 using 59 PHA bins.
# Reduced chi-squared =         1.9797 for     57 degrees of freedom 
# Null hypothesis probability =   1.514747e-05
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.415e-07   1.563e-08
25- 50  4.803e-07   3.289e-08
50-150  4.955e-07   6.633e-08
15-150  1.117e-06   7.460e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 102.597       (-18.7996      32.7607)
Norm        : 5.08527       (-0.438004     0.427307)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          78.35 using 59 PHA bins.
# Reduced chi-squared =          1.375 for     57 degrees of freedom 
# Null hypothesis probability =   3.186801e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.469e-07   2.462e-08
25- 50  4.292e-07   2.991e-08
50-150  7.056e-07   2.058e-07
15-150  1.382e-06   2.349e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.50058        (-1.59754      1.74695)
R1^2/D10^2  : 1.45697        (-0.757142      2.38445)
kT2 [keV]   : 19.2085        (-3.03298      5.07001)
R2^2/D10^2  : 3.66086E-02    (-0.0234251   0.0231113)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          75.08 using 59 PHA bins.
# Reduced chi-squared =          1.365 for     55 degrees of freedom 
# Null hypothesis probability =   3.729890e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.182e-07   6.640e-08
25- 50  4.379e-07   1.239e-07
50-150  6.722e-07   2.447e-07
15-150  1.328e-06   3.643e-07

Peak spectrum fit

Power-law model
Time interval is from    1.284 sec. to    2.284 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.52871     ( -0.151291   0.152697 )
Norm@50keV  : 2.80480E-02    ( -0.00262701   0.00261726 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.05 using 59 PHA bins.
# Reduced chi-squared =          1.106 for     57 degrees of freedom 
# Null hypothesis probability =   2.709411e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.52922 ( -0.333084  0.333483 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.64876e-07 ( -2.66007e-08  2.67204e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.284 sec. to    2.284 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.21981     ( -0.593597   0.389505 )
Epeak [keV] : 130.324      ( -58.4251 -130.325 )
Norm@50keV  : 4.00657E-02    ( -0.0133833   0.0375823 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.08 using 59 PHA bins.
# Reduced chi-squared =          1.109 for     56 degrees of freedom 
# Null hypothesis probability =   2.684155e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.49732 ( -0.33789  0.33797 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.61328e-07 ( -2.7634e-08  2.7578e-08 ) ergs/cm2
 
Band function
Time interval is from    1.284 sec. to    2.284 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.21969   ( -0.498091   0.500418 )
beta        : -10.0000    ( 10   3.55271e-15 )
Epeak [keV] : 130.269      ( -54.1724 -130.269 )
Norm@50keV   : 4.00667E-02    ( -0.0140578   0.0375875 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.08 using 59 PHA bins.
# Reduced chi-squared =          1.129 for     55 degrees of freedom 
# Null hypothesis probability =   2.384747e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.48852 (    ) 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]    : 15.7550  (-1.92003  2.20174)
R^2/D10^2   : 0.338092  (-0.124339   0.197097)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          97.06 using 59 PHA bins.
# Reduced chi-squared =          1.703 for     57 degrees of freedom 
# Null hypothesis probability =   7.439793e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.741e-08   3.210e-09
25- 50  7.229e-08   9.410e-09
50-150  1.247e-07   2.055e-08
15-150  2.144e-07   2.690e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-60.3636      -199.363)
Norm        : 14.5089       (-1.32589     1.32616)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.28 using 59 PHA bins.
# Reduced chi-squared =          1.093 for     57 degrees of freedom 
# Null hypothesis probability =   2.939237e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.613e-08   4.310e-09
25- 50  6.950e-08   1.321e-08
50-150  1.524e-07   4.670e-08
15-150  2.581e-07   7.925e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.50879        (-1.2942      1.55891)
R1^2/D10^2  : 4.96465        (-2.63853      6.3098)
kT2 [keV]   : 26.2948        (-4.81452      7.69798)
R2^2/D10^2  : 4.52331E-02    (-0.0266187   0.0492007)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.76 using 59 PHA bins.
# Reduced chi-squared =          1.050 for     55 degrees of freedom 
# Null hypothesis probability =   3.736712e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.642e-08   1.332e-08
25- 50  6.762e-08   1.982e-08
50-150  1.609e-07   6.460e-08
15-150  2.650e-07   9.149e-08
Plot creation:
Fri Mar 17 23:44:18 EDT 2017