batgrbproduct Analysis for Trigger=729293

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Jan  1 18:34:56 EST 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger729293/batgroup_hand_proc
======================================================================

  Trigger: 00729293      Segment: 000

  BAT Trigger Time: 504930379.344   [s; MET]
      Trigger Stop: 504930379.408   [s; MET]
               UTC: 2017-01-01T02:26:00.951240    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 267.102656576912   Dec: 11.6542661795857  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    14.24
     Image Trigger?:     NO
     Rate S/N Ratio:     98.9595877113481  [ if not an image trigger ]
     Image S/N Ratio:    14.24

  Flight Position:   [ source = BAT ]
    RA: 267.102656576912   Dec: 11.6542661795857  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 267.088750536453   Dec: 11.6416457988852  [deg; J2000]  
        { 17h 48m 21.3s , +11d 38' 29.9" }
         +/- 1.0954388252419 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.381983507121152 [arcmin] (formal 1-sigma fit error)
    SNR: 26.7032369461833
 
  Angular difference between Flight and Ground position is 1.114078 arcmin
 
  Partial Coding Fraction: 0.1464844    [ including projection effects ]

  Duration
     T90: 3.18400001525879 +/- 0.93089203857794
        Measured from: -0.271999955177307
                   to: 2.91200006008148     [s; relative to TRIGTIME]
     T50: 0.976000010967255 +/- 0.0715541870086366
        Measured from: 0.0640000104904175
                   to: 1.04000002145767     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.219999969005585     
                   to: 0.780000030994415     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -1.63199996948242     
                   to: 8.5120000243187     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     3.412552   3.862893   2.556562   0.456481
           0.092896   0.097980   0.083931   0.053560 [error]
 Peak      1.672874   2.364919   1.796812   0.398269
           0.055897   0.067873   0.060617   0.034577 [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 1.18e-06 1.74e-06 1.91e-06 3.94e-06 6.03e-06 8.76e-06   erg/cm2
              Error 6.82e-08 5.90e-08 8.34e-08 3.73e-07 2.00e-07 4.33e-07   erg/cm2
Peak flux Power-law 1.92e+01 1.82e+01 1.20e+01 1.23e+01 5.44e+01 6.17e+01   ph/cm2/s
              Error 1.20e+00 6.92e-01 4.97e-01 1.05e+00 1.99e+00 2.09e+00   ph/cm2/s
 
Fluence   Cutoff-PL 1.13e-06 1.77e-06 1.94e-06 2.99e-06 5.95e-06 7.83e-06   erg/cm2
              Error 8.68e-08 6.65e-08 9.08e-08 9.11e-07 2.19e-07 8.53e-07   erg/cm2
Peak flux Cutoff-PL 1.80e+01 1.85e+01 1.24e+01 9.49e+00 5.36e+01 5.84e+01   ph/cm2/s
              Error 1.51e+00 7.62e-01 5.93e-01 2.20e+00 1.57e+00 3.16e+00   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    1.865    0.060    -      -           6.47e-02 2.13e-03   55.110 57
CPL   1.661    0.234      86.6  -32.0      8.12e-02 2.09e-02   52.830 56
 
The chi2 of BB fit is Chi-Squared Chi-Squared 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    1.599    0.060    -      -           4.23e-01 1.45e-02   57.890 57
CPL   1.331    0.239     135.5  237.9      5.66e-01 1.46e-01   54.020 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: 1.920000 sec.
T50 in the 50-300 keV band: 0.576000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   10.144   -1.632    8.512
T90     3.184   -0.272    2.912
T50     0.976    0.064    1.040
Peak    1.000   -0.220    0.780

Image

Pre-slew 15.0-350.0 keV image (Event data)

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  267.0888    11.6416   0.0071    37.1337   -92.6038        11.1299933     26.703 TRIG_00729293                 
 
Foreground time interval of the image:
 -1.632   8.512 (delta_t =  10.144 [sec])
Background time interval of the image:
-82.043  -1.632 (delta_t =  80.411 [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   -1.632 sec. to    8.512 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.86520     ( -0.0600444   0.0606258 )
Norm@50keV  : 6.46806E-02    ( -0.00213844   0.00213067 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.11 using 59 PHA bins.
# Reduced chi-squared =         0.9668 for     57 degrees of freedom 
# Null hypothesis probability =   5.464399e-01
 
Photon flux (15-150 keV)    in 10.14 sec: 9.14822 ( -0.325309  0.32659 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.0296e-06 ( -1.99375e-07  1.99627e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -1.632 sec. to    8.512 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.66065     ( -0.242928   0.225666 )
Epeak [keV] : 86.5694      ( -22.4906 -86.5694 )
Norm@50keV  : 8.11733E-02    ( -0.0172959   0.0244393 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.83 using 59 PHA bins.
# Reduced chi-squared =         0.9433 for     56 degrees of freedom 
# Null hypothesis probability =   5.957196e-01
 
Photon flux (15-150 keV)    in 10.14 sec: 9.00554 ( -0.3586  0.36061 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.95294e-06 ( -2.19338e-07  2.18385e-07 ) ergs/cm2
 
Band function
Time interval is from   -1.632 sec. to    8.512 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.64778   ( 1.6533   1.6533 )
beta        : -2.06823    ( 2.08288   0.244507 )
Epeak [keV] : 83.1292      ( -85.2028 -85.2028 )
Norm@50keV   : 8.25205E-02    ( -0.0175215   6.56736 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.84 using 59 PHA bins.
# Reduced chi-squared =         0.9607 for     55 degrees of freedom 
# Null hypothesis probability =   5.576743e-01
 
Photon flux (15-150 keV)    in 10.14 sec: 9.01759 (    ) 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]    : 13.5288  (  )
R^2/D10^2   : 1.32083  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         300.53 using 59 PHA bins.
# Reduced chi-squared =         5.2725 for     57 degrees of freedom 
# Null hypothesis probability =   8.565659e-35
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.192e-07   3.260e-08
25- 50  1.865e-06   7.605e-08
50-150  2.207e-06   1.450e-07
15-150  4.591e-06   1.764e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 111.200       (-17.5493      13.2316)
Norm        : 37.6888       (-1.59159     2.63653)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.79 using 59 PHA bins.
# Reduced chi-squared =          1.049 for     57 degrees of freedom 
# Null hypothesis probability =   3.747887e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.978e-07   6.885e-08
25- 50  1.761e-06   8.619e-08
50-150  3.023e-06   7.037e-07
15-150  5.782e-06   7.230e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.13569        (-0.665283      0.733125)
R1^2/D10^2  : 17.5167        (-6.10251      10.2903)
kT2 [keV]   : 22.3771        (-1.98483      2.5252)
R2^2/D10^2  : 0.157460    (-0.0547707   0.0717364)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.48 using 59 PHA bins.
# Reduced chi-squared =          1.118 for     55 degrees of freedom 
# Null hypothesis probability =   2.552405e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.064e-06   1.264e-07
25- 50  1.744e-06   1.197e-07
50-150  3.030e-06   2.459e-07
15-150  5.837e-06   3.777e-07

Peak spectrum fit

Power-law model
Time interval is from   -0.220 sec. to    0.780 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.59870     ( -0.0593914   0.0597407 )
Norm@50keV  : 0.423347    ( -0.0144626   0.0144534 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.89 using 59 PHA bins.
# Reduced chi-squared =          1.016 for     57 degrees of freedom 
# Null hypothesis probability =   4.423921e-01
 
Photon flux (15-150 keV)    in 1 sec: 54.3801 ( -1.98492  1.98916 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.95982e-06 ( -1.41925e-07  1.42099e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.220 sec. to    0.780 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.33110     ( -0.245112   0.233057 )
Epeak [keV] : 135.495      ( -40.4014 435.463 )
Norm@50keV  : 0.566496    ( -0.124114   0.168382 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.02 using 59 PHA bins.
# Reduced chi-squared =         0.9647 for     56 degrees of freedom 
# Null hypothesis probability =   5.500903e-01
 
Photon flux (15-150 keV)    in 1 sec: 53.5808 ( -1.0476  2.0933 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.91325e-06 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from   -0.220 sec. to    0.780 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.950056   ( -0.487124   1.59034 )
beta        : -1.71873    ( 1.71859   0.116704 )
Epeak [keV] : 67.2194      ( -34.259 193.369 )
Norm@50keV   : 0.969139    ( -0.515103   13.9037 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.09 using 59 PHA bins.
# Reduced chi-squared =         0.9653 for     55 degrees of freedom 
# Null hypothesis probability =   5.478651e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.89946e-06 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 15.4355  (  )
R^2/D10^2   : 5.42393  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         260.17 using 59 PHA bins.
# Reduced chi-squared =         4.5645 for     57 degrees of freedom 
# Null hypothesis probability =   9.743642e-28
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.692e-07   1.770e-08
25- 50  1.098e-06   4.950e-08
50-150  1.802e-06   1.160e-07
15-150  3.169e-06   1.240e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 195.921       (-32.6369      -195.808)
Norm        : 220.003       (-7.7732     8.63651)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.13 using 59 PHA bins.
# Reduced chi-squared =         0.9496 for     57 degrees of freedom 
# Null hypothesis probability =   5.835526e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.475e-07   2.280e-08
25- 50  1.053e-06   4.890e-08
50-150  2.306e-06   1.035e-07
15-150  3.906e-06   3.955e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.69217        (-0.908065      0.964834)
R1^2/D10^2  : 41.8088        (-13.2607      22.2643)
kT2 [keV]   : 28.0703        (-3.23315      4.56197)
R2^2/D10^2  : 0.489750    (-0.208049   0.291262)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.64 using 59 PHA bins.
# Reduced chi-squared =          1.084 for     55 degrees of freedom 
# Null hypothesis probability =   3.106341e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.966e-07   5.235e-08
25- 50  1.085e-06   8.620e-08
50-150  2.309e-06   2.580e-07
15-150  3.890e-06   3.345e-07
Plot creation:
Sun Jan  1 21:08:39 EST 2017