batgrbproduct Analysis for Trigger=727422

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Dec 20 09:36:49 EST 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger727422/GCN5_download_cron
======================================================================

  Trigger: 00727422      Segment: 000

  BAT Trigger Time: 503825560   [s; MET]
      Trigger Stop: 503825624   [s; MET]
               UTC: 2016-12-19T07:32:22.670580    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 119.852294516257   Dec: -38.8202100509903  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    5.84
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    5.84

  Flight Position:   [ source = BAT ]
    RA: 119.852294516257   Dec: -38.8202100509903  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 119.856613452509   Dec: -38.7874014103745  [deg; J2000]  
        { 07h 59m 25.6s , -38d 47' 14.6" }
         +/- 5.10410930873429 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.42540926388905 [arcmin] (formal 1-sigma fit error)
    SNR: 2.96349461218693
 
  Angular difference between Flight and Ground position is 1.978850 arcmin
 
  Partial Coding Fraction: 0.875    [ including projection effects ]

  Duration
     T90: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]
     T50: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 64 second)
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.117571   0.197200  -0.021306  -0.013328
           0.050713   0.052724   0.045632   0.040151 [error]
 Peak      0.117571   0.197200  -0.021306  -0.013328
           0.050713   0.052724   0.045632   0.040151 [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 3.13e-08 4.29e-08 4.34e-08 7.97e-08 1.43e-07 1.98e-07   erg/cm2
              Error 1.84e-08 2.23e-08 3.25e-08 1.23e-07 8.50e-08 1.63e-07   erg/cm2
Peak flux Power-law 1.59e-02 1.21e-02 6.11e-03 4.44e-03 3.62e-02 3.85e-02   ph/cm2/s
              Error 9.49e-03 6.22e-03 4.46e-03 6.32e-03 1.85e-02 2.02e-02   ph/cm2/s
 
Fluence   Cutoff-PL 2.68e-08 8.86e-08 1.19e-08 4.42e-12 1.27e-07 1.27e-07   erg/cm2
              Error 2.00e-08 3.65e-08 2.35e-08 1.10e-09 5.31e-08 5.31e-08   erg/cm2
Peak flux Cutoff-PL 1.27e-02 2.52e-02 2.04e-03 3.93e-07 4.00e-02 3.99e-02   ph/cm2/s
              Error 9.86e-03 1.00e-02 3.68e-03 9.52e-05 1.60e-02 1.60e-02   ph/cm2/s
 
Fluence        Band 3.04e-08 8.38e-08 1.72e-08 1.62e-10 1.32e-07 1.32e-07   erg/cm2
              Error 1.61e-08 3.31e-08 -------- -------- -------- --------   erg/cm2
Peak flux      Band 1.48e-02 2.38e-02 2.87e-03 1.39e-05 4.16e-02 4.16e-02   ph/cm2/s
              Error 7.67e-03 9.15e-03 -------- -------- -------- --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.977    0.742    -      -           2.44e-04 1.47e-04   60.890 57
CPL  -6.286   -0.567      34.1    7.4      5.55e+01 1.08e+04   51.600 56
 
The chi2 of BB fit is 53.79 which shows a significant improvement in the fit over a PL.
Check the BB fit.
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.977    0.742    -      -           2.44e-04 1.47e-04   60.890 57
CPL  -6.286   -0.567      34.1    7.4      5.55e+01 1.08e+04   51.600 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   64.000    0.000   64.000
T90    64.000    0.000   64.000
T50    64.000    0.000   64.000
Peak   64.000    0.000   64.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  119.8566 -38.7874 0.0647   14.2  -83.9       0.3077     3.0  TRIG_00727422       
------------------------------------------
 
Foreground time interval of the image:
  0.000  64.000 (delta_t =  64.000 [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    0.000 sec. to   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.97688     ( -0.682825   0.801009 )
Norm@50keV  : 2.43502E-04    ( -0.000143865   0.00015007 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.89 using 59 PHA bins.
# Reduced chi-squared =          1.068 for     57 degrees of freedom 
# Null hypothesis probability =   3.377467e-01
 
Photon flux (15-150 keV)    in 64 sec: 3.61514E-02 ( -0.0185248  0.0185369 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.43192e-07 ( -8.01107e-08  8.99744e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -6.28568     ( 6.31231   5.1792 )
Epeak [keV] : 34.0739      ( -6.51014 8.37211 )
Norm@50keV  : 55.5381    ( -61.9465   21611.5 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.60 using 59 PHA bins.
# Reduced chi-squared =         0.9214 for     56 degrees of freedom 
# Null hypothesis probability =   6.419335e-01
 
Photon flux (15-150 keV)    in 64 sec: 3.99732E-02 ( -0.0157385  0.0163021 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.27249e-07 ( -5.0633e-08  5.55635e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -4.05545   -5 )
beta        : -9.37167    ( 9.37167   19.337 )
Epeak [keV] : 34.7622      ( -7.17118 7.88583 )
Norm@50keV   : 7.85243    ( -2.91678   27.6261 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.78 using 59 PHA bins.
# Reduced chi-squared =         0.9414 for     55 degrees of freedom 
# Null hypothesis probability =   5.984978e-01
 
Photon flux (15-150 keV)    in 64 sec: 4.16181E-02 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.32381e-07 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 8.99198  (-2.33233  3.17936)
R^2/D10^2   : 3.43006E-02  (-0.0340121   0.0697109)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.79 using 59 PHA bins.
# Reduced chi-squared =         0.9438 for     57 degrees of freedom 
# Null hypothesis probability =   5.960803e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.454e-08   2.191e-08
25- 50  7.332e-08   4.733e-08
50-150  2.789e-08   2.327e-08
15-150  1.358e-07   8.979e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 49.2639       (-27.0304      -48.1562)
Norm        : 0.226679       (-0.122302     0.207127)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.74 using 59 PHA bins.
# Reduced chi-squared =          1.031 for     57 degrees of freedom 
# Null hypothesis probability =   4.114714e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.535e-08   2.467e-08
25- 50  5.050e-08   3.421e-08
50-150  4.835e-08   4.208e-08
15-150  1.342e-07   9.235e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.03243        (-2.31254      3.19848)
R1^2/D10^2  : 3.37665E-02        (-0.0338316      0.0698874)
kT2 [keV]   : 0.166538        (-0.166538      -0.166538)
R2^2/D10^2  : 4.84570E-05    (-4.84577e-05   -4.84577e-05)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.79 using 59 PHA bins.
# Reduced chi-squared =         0.9781 for     55 degrees of freedom 
# Null hypothesis probability =   5.207622e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.97688     ( -0.682825   0.801009 )
Norm@50keV  : 2.43502E-04    ( -0.000143865   0.00015007 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.89 using 59 PHA bins.
# Reduced chi-squared =          1.068 for     57 degrees of freedom 
# Null hypothesis probability =   3.377467e-01
 
Photon flux (15-150 keV)    in 64 sec: 3.61514E-02 ( -0.0185248  0.0185369 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.43192e-07 ( -8.01107e-08  8.99744e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -6.28568     ( 6.31231   5.1792 )
Epeak [keV] : 34.0739      ( -6.51014 8.37211 )
Norm@50keV  : 55.5381    ( -61.9465   21611.5 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.60 using 59 PHA bins.
# Reduced chi-squared =         0.9214 for     56 degrees of freedom 
# Null hypothesis probability =   6.419335e-01
 
Photon flux (15-150 keV)    in 64 sec: 3.99732E-02 ( -0.0157385  0.0163021 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.27249e-07 ( -5.0633e-08  5.55635e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -4.05545   -5 )
beta        : -9.37167    ( 9.37167   19.337 )
Epeak [keV] : 34.7622      ( -7.17118 7.88583 )
Norm@50keV   : 7.85243    ( -2.91678   27.6261 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.78 using 59 PHA bins.
# Reduced chi-squared =         0.9414 for     55 degrees of freedom 
# Null hypothesis probability =   5.984978e-01
 
Photon flux (15-150 keV)    in 64 sec: 4.16181E-02 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.32381e-07 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 8.99198  (-2.33233  3.17936)
R^2/D10^2   : 3.43006E-02  (-0.0340121   0.0697109)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.79 using 59 PHA bins.
# Reduced chi-squared =         0.9438 for     57 degrees of freedom 
# Null hypothesis probability =   5.960803e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.454e-08   2.130e-08
25- 50  7.332e-08   4.771e-08
50-150  2.789e-08   2.447e-08
15-150  1.358e-07   8.659e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 49.2639       (-27.0304      -48.1562)
Norm        : 0.226679       (-0.122303     0.207127)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.74 using 59 PHA bins.
# Reduced chi-squared =          1.031 for     57 degrees of freedom 
# Null hypothesis probability =   4.114714e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.535e-08   2.305e-08
25- 50  5.050e-08   3.341e-08
50-150  4.835e-08   4.061e-08
15-150  1.342e-07   9.174e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.03243        (-2.31254      3.19848)
R1^2/D10^2  : 3.37665E-02        (-0.0338316      0.0698874)
kT2 [keV]   : 0.166538        (-0.166538      -0.166538)
R2^2/D10^2  : 4.84570E-05    (-4.84577e-05   -4.84577e-05)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.79 using 59 PHA bins.
# Reduced chi-squared =         0.9781 for     55 degrees of freedom 
# Null hypothesis probability =   5.207622e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00
Plot creation:
Tue Dec 20 09:42:40 EST 2016