batgrbproduct Analysis for Trigger=675361

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Feb 23 14:08:31 EST 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger675361/GCN5_download_cron
======================================================================

  Trigger: 00675361      Segment: 000

  BAT Trigger Time: 477884681.152   [s; MET]
      Trigger Stop: 477884685.248   [s; MET]
               UTC: 2016-02-23T01:44:25.270300    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 147.583623924545   Dec: 9.37258061929805  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.52
     Image Trigger?:     NO
     Rate S/N Ratio:     10.0498756211209  [ if not an image trigger ]
     Image S/N Ratio:    7.52

  Flight Position:   [ source = BAT ]
    RA: 147.583623924545   Dec: 9.37258061929805  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 147.603305575492   Dec: 9.36924403663391  [deg; J2000]  
        { 09h 50m 24.8s , +09d 22' 09.3" }
         +/- 0.953545616628846 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.291927939457828 [arcmin] (formal 1-sigma fit error)
    SNR: 32.5559640231177
 
  Angular difference between Flight and Ground position is 1.182214 arcmin
 
  Partial Coding Fraction: 0.53125    [ including projection effects ]

  Duration
     T90: 126.851999938488 +/- 8.43012127283683
        Measured from: -0.0719999074935913
                   to: 126.780000030994     [s; relative to TRIGTIME]
     T50: 21.6199999451637 +/- 5.76529896532722
        Measured from: 88.0640001296997
                   to: 109.684000074863     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 109.948000013828     
                   to: 110.948000013828     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -6     
                   to: 143.131999969482     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.743335   2.853435   2.405093   0.522062
           0.092881   0.097490   0.085304   0.072933 [error]
 Peak      0.082098   0.146419   0.138060   0.037329
           0.009109   0.010601   0.010326   0.007525 [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 5.67e-07 1.15e-06 1.81e-06 6.33e-06 5.04e-06 9.85e-06   erg/cm2
              Error 4.28e-08 5.08e-08 8.47e-08 6.73e-07 2.11e-07 7.20e-07   erg/cm2
Peak flux Power-law 8.23e-01 9.94e-01 8.70e-01 1.31e+00 3.15e+00 3.99e+00   ph/cm2/s
              Error 1.17e-01 8.73e-02 8.03e-02 2.50e-01 2.47e-01 3.38e-01   ph/cm2/s
 
Fluence   Cutoff-PL 5.25e-07 1.18e-06 1.86e-06 3.96e-06 4.92e-06 7.52e-06   erg/cm2
              Error 5.33e-08 5.70e-08 9.56e-08 1.48e-06 2.32e-07 1.48e-06   erg/cm2
Peak flux Cutoff-PL 7.61e-01 1.03e+00 9.08e-01 8.57e-01 3.11e+00 3.56e+00   ph/cm2/s
              Error 1.40e-01 1.01e-01 9.54e-02 4.05e-01 2.53e-01 5.33e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   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    1.342    0.070    -      -           3.45e-03 1.33e-04   67.650 57
CPL   0.997    0.286     157.1  204.5      5.00e-03 1.54e-03   63.060 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.192    0.131    -      -           2.68e-02 2.09e-03   60.370 57
CPL   0.805    0.506     163.9  -47.8      4.13e-02 2.53e-02   58.690 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: 148.992000 sec.
T50 in the 50-300 keV band: 20.608000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  149.132   -6.000  143.132
T90   126.852   -0.072  126.780
T50    21.620   88.064  109.684
Peak    1.000  109.948  110.948

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  147.6033  +9.3692 0.0059   23.5  108.7       7.7549    32.6  TRIG_00675361       
------------------------------------------
 
Foreground time interval of the image:
 -6.000 143.132 (delta_t = 149.132 [sec])
Background time interval of the image:
-239.152  -6.000 (delta_t = 233.152 [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   -6.000 sec. to  143.132 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.34197     ( -0.0703095   0.0700849 )
Norm@50keV  : 3.45164E-03    ( -0.000132647   0.000132646 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.65 using 59 PHA bins.
# Reduced chi-squared =          1.187 for     57 degrees of freedom 
# Null hypothesis probability =   1.580122e-01
 
Photon flux (15-150 keV)    in 149.1 sec: 0.415142 ( -0.0169104  0.0169449 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.03549e-06 ( -2.10273e-07  2.10857e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -6.000 sec. to  143.132 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.997132     ( -0.295528   0.276809 )
Epeak [keV] : 157.135      ( -48.5583 360.345 )
Norm@50keV  : 5.00429E-03    ( -0.00126096   0.00181265 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.06 using 59 PHA bins.
# Reduced chi-squared =          1.126 for     56 degrees of freedom 
# Null hypothesis probability =   2.410024e-01
 
Photon flux (15-150 keV)    in 149.1 sec: 0.406741 ( -0.018111  0.018133 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.91966e-06 ( -2.32939e-07  2.31627e-07 ) ergs/cm2
 
Band function
Time interval is from   -6.000 sec. to  143.132 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.311197   ( -0.86069   3.76672 )
beta        : -1.45052    ( 1.45118   0.112721 )
Epeak [keV] : 60.6118      ( -31.8032 166.664 )
Norm@50keV   : 1.40828E-02    ( -0.00900145   20.4062 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.86 using 59 PHA bins.
# Reduced chi-squared =          1.143 for     55 degrees of freedom 
# Null hypothesis probability =   2.178299e-01
 
Photon flux (15-150 keV)    in 149.1 sec: 0.406883 (    ) 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]    : 17.6634  (  )
R^2/D10^2   : 2.73408E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         178.24 using 59 PHA bins.
# Reduced chi-squared =         3.1270 for     57 degrees of freedom 
# Null hypothesis probability =   2.081608e-14
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.562e-07   2.095e-08
25- 50  1.168e-06   6.568e-08
50-150  2.631e-06   1.774e-07
15-150  4.056e-06   2.043e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-7.99931      -200)
Norm        : 1.73533       (-0.0671204     0.0671204)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          91.01 using 59 PHA bins.
# Reduced chi-squared =          1.597 for     57 degrees of freedom 
# Null hypothesis probability =   2.810297e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.445e-07   2.706e-08
25- 50  1.240e-06   5.241e-08
50-150  2.719e-06   1.163e-07
15-150  4.603e-06   1.968e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.83686        (-1.16561      1.3031)
R1^2/D10^2  : 0.250754        (-0.0940284      0.173039)
kT2 [keV]   : 28.8019        (-3.69498      5.66661)
R2^2/D10^2  : 4.26683E-03    (-0.00197149   0.00273802)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.92 using 59 PHA bins.
# Reduced chi-squared =          1.144 for     55 degrees of freedom 
# Null hypothesis probability =   2.163280e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.934e-07   7.485e-08
25- 50  1.203e-06   1.563e-07
50-150  3.221e-06   4.436e-07
15-150  4.918e-06   5.979e-07

Peak spectrum fit

Power-law model
Time interval is from  109.948 sec. to  110.948 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.19233     ( -0.131498   0.131101 )
Norm@50keV  : 2.68237E-02    ( -0.00208939   0.00208793 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.37 using 59 PHA bins.
# Reduced chi-squared =          1.059 for     57 degrees of freedom 
# Null hypothesis probability =   3.548902e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.14520 ( -0.247358  0.247473 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.72727e-07 ( -2.40977e-08  2.42494e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  109.948 sec. to  110.948 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.805080     ( -0.567491   0.443711 )
Epeak [keV] : 163.855      ( -68.3308 -163.855 )
Norm@50keV  : 4.13430E-02    ( -0.0156522   0.0349916 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.69 using 59 PHA bins.
# Reduced chi-squared =          1.048 for     56 degrees of freedom 
# Null hypothesis probability =   3.771666e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.10554 ( -0.25236  0.25294 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.66626e-07 ( -2.5995e-08  2.5792e-08 ) ergs/cm2
 
Band function
Time interval is from  109.948 sec. to  110.948 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 8.85323E-02   ( 0.147979   0.147979 )
beta        : -1.36178    ( 1.354   0.219745 )
Epeak [keV] : 60.7542      ( -60.7814 170.789 )
Norm@50keV   : 0.155874    ( -0.157261   689.938 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.90 using 59 PHA bins.
# Reduced chi-squared =          1.053 for     55 degrees of freedom 
# Null hypothesis probability =   3.687253e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) 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]    : 18.2473  (-1.84744  2.10039)
R^2/D10^2   : 0.198817  (-0.0596218   0.0835271)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          87.65 using 59 PHA bins.
# Reduced chi-squared =          1.538 for     57 degrees of freedom 
# Null hypothesis probability =   5.628241e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.320e-08   2.040e-09
25- 50  6.165e-08   6.275e-09
50-150  1.495e-07   2.015e-08
15-150  2.243e-07   2.220e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-18.0258      -200)
Norm        : 12.7988       (-1.01442     1.01442)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          78.27 using 59 PHA bins.
# Reduced chi-squared =          1.373 for     57 degrees of freedom 
# Null hypothesis probability =   3.228658e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.187e-08   3.245e-09
25- 50  6.131e-08   1.135e-08
50-150  1.344e-07   5.215e-08
15-150  2.276e-07   6.990e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.50229        (-2.27923      2.82521)
R1^2/D10^2  : 1.39201        (-0.752558      2.18596)
kT2 [keV]   : 31.7601        (-7.49634      22.2281)
R2^2/D10^2  : 2.58021E-02    (-0.0206871   0.0405011)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.97 using 59 PHA bins.
# Reduced chi-squared =          1.054 for     55 degrees of freedom 
# Null hypothesis probability =   3.662863e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.290e-08   8.231e-09
25- 50  6.159e-08   2.093e-08
50-150  1.841e-07   8.705e-08
15-150  2.686e-07   1.079e-07
Plot creation:
Tue Feb 23 14:19:02 EST 2016