batgrbproduct Analysis for Trigger=666378

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Dec  7 20:58:47 EST 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger666378/GCN5_download_cron
======================================================================

  Trigger: 00666378      Segment: 000

  BAT Trigger Time: 471044610.048   [s; MET]
      Trigger Stop: 471044611.456   [s; MET]
               UTC: 2015-12-05T21:43:14.535740    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 41.1585655544286   Dec: -43.4806088350113  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.42
     Image Trigger?:     NO
     Rate S/N Ratio:     11.4017542509914  [ if not an image trigger ]
     Image S/N Ratio:    7.42

  Flight Position:   [ source = BAT ]
    RA: 41.1585655544286   Dec: -43.4806088350113  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 41.1924399080358   Dec: -43.4629650554462  [deg; J2000]  
        { 02h 44m 46.2s , -43d 27' 46.7" }
         +/- 2.36624239715865 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.33574883291157 [arcmin] (formal 1-sigma fit error)
    SNR: 8.88685407919854
 
  Angular difference between Flight and Ground position is 1.815563 arcmin
 
  Partial Coding Fraction: 0.9609375    [ including projection effects ]

  Duration
     T90: 1.43599992990494 +/- 0.237587854202095
        Measured from: -0.19599986076355
                   to: 1.24000006914139     [s; relative to TRIGTIME]
     T50: 0.851999938488007 +/- 0.305470116322775
        Measured from: 0.120000123977661
                   to: 0.972000062465668     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.112000048160553     
                   to: 1.11200004816055     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.219999969005585     
                   to: 1.31600004434586     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.047054   0.042538   0.044091   0.006090
           0.007722   0.008160   0.007472   0.006784 [error]
 Peak      0.037781   0.022825   0.025411   0.006257
           0.006295   0.006616   0.006051   0.005477 [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 1.21e-08 2.09e-08 2.76e-08 7.44e-08 8.06e-08 1.35e-07   erg/cm2
              Error 3.22e-09 3.61e-09 7.21e-09 4.07e-08 1.70e-08 4.73e-08   erg/cm2
Peak flux Power-law 2.90e-01 2.44e-01 1.39e-01 1.18e-01 7.25e-01 7.92e-01   ph/cm2/s
              Error 9.43e-02 5.21e-02 5.21e-02 8.92e-02 1.55e-01 1.79e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.18e-08 2.14e-08 2.78e-08 5.22e-08 7.91e-08 1.13e-07   erg/cm2
              Error 3.54e-09 4.35e-09 7.52e-09 6.88e-08 1.85e-08 5.99e-08   erg/cm2
Peak flux Cutoff-PL 2.99e-01 2.43e-01 1.33e-01 1.07e-01 7.24e-01 7.89e-01   ph/cm2/s
              Error 9.49e-02 3.94e-02 -------- 1.14e-01 1.55e-01 1.75e-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    1.597    0.314    -      -           5.61e-03 1.08e-03   50.930 57
CPL   1.397    0.877     139.7    0.0      7.20e-03 1.62e-02   50.830 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.807    0.449    -      -           5.25e-03 1.46e-03   51.090 57
CPL   2.083    0.593      34.3   -0.0      3.71e-03 5.64e-03   50.760 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    1.536   -0.220    1.316
T90     1.436   -0.196    1.240
T50     0.852    0.120    0.972
Peak    1.000    0.112    1.112

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   41.1924 -43.4630 0.0217   21.8  -24.9       0.1346     8.9  TRIG_00666378       
------------------------------------------
 
Foreground time interval of the image:
 -0.220   1.316 (delta_t =   1.536 [sec])
Background time interval of the image:
-239.048  -0.220 (delta_t = 238.828 [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   -0.220 sec. to    1.316 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.59686     ( -0.307362   0.321587 )
Norm@50keV  : 5.61116E-03    ( -0.00109701   0.00106564 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.93 using 59 PHA bins.
# Reduced chi-squared =         0.8936 for     57 degrees of freedom 
# Null hypothesis probability =   7.007950e-01
 
Photon flux (15-150 keV)    in 1.536 sec: 0.720359 ( -0.124227  0.124258 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.06374e-08 ( -1.67839e-08  1.73053e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.220 sec. to    1.316 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.39651     ( -1.24131   0.512286 )
Epeak [keV] : 139.744      ( -139.738 -139.738 )
Norm@50keV  : 7.20259E-03    ( -0.0072027   0.0252297 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.83 using 59 PHA bins.
# Reduced chi-squared =         0.9076 for     56 degrees of freedom 
# Null hypothesis probability =   6.704853e-01
 
Photon flux (15-150 keV)    in 1.536 sec: 0.714682 ( -0.126903  0.127094 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.90972e-08 ( -1.84669e-08  1.84845e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.220 sec. to    1.316 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.98629   ( -4.98629   -4.98629 )
beta        : -1.70346    ( -0.418342   0.347034 )
Epeak [keV] : 22.6766      ( -22.6766 6.03356 )
Norm@50keV   : 1204.42    ( -205.906   3.86808e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.64 using 59 PHA bins.
# Reduced chi-squared =         0.9025 for     55 degrees of freedom 
# Null hypothesis probability =   6.789587e-01
 
Photon flux (15-150 keV)    in 1.536 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]    : 13.8125  (-3.22238  4.02209)
R^2/D10^2   : 0.106135  (-0.0620151   0.1632)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.99 using 59 PHA bins.
# Reduced chi-squared =          1.070 for     57 degrees of freedom 
# Null hypothesis probability =   3.346612e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.578e-09   2.319e-09
25- 50  2.414e-08   6.479e-09
50-150  3.011e-08   1.279e-08
15-150  6.082e-08   1.871e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 171.245       (-94.0923      -170.548)
Norm        : 2.94879       (-0.524304     0.666487)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.87 using 59 PHA bins.
# Reduced chi-squared =         0.8925 for     57 degrees of freedom 
# Null hypothesis probability =   7.028490e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.149e-08   6.509e-09
25- 50  2.168e-08   1.207e-08
50-150  4.508e-08   2.618e-08
15-150  7.825e-08   4.409e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.00064        (-1.61837      2.50478)
R1^2/D10^2  : 2.80724        (-2.19373      7.04677)
kT2 [keV]   : 22.0080        (-6.12623      9.05576)
R2^2/D10^2  : 1.73840E-02    (-0.0137799   0.0391497)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.79 using 59 PHA bins.
# Reduced chi-squared =         0.8871 for     55 degrees of freedom 
# Null hypothesis probability =   7.093757e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.288e-08   7.377e-09
25- 50  1.951e-08   1.021e-08
50-150  4.608e-08   2.784e-08
15-150  7.848e-08   4.368e-08

Peak spectrum fit

Power-law model
Time interval is from    0.112 sec. to    1.112 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.80700     ( -0.426537   0.470537 )
Norm@50keV  : 5.24910E-03    ( -0.00150828   0.00140203 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.09 using 59 PHA bins.
# Reduced chi-squared =         0.8963 for     57 degrees of freedom 
# Null hypothesis probability =   6.953636e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.725287 ( -0.154918  0.154921 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.83116e-08 ( -1.33337e-08  1.40779e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.112 sec. to    1.112 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.08321     ( -0.709347   0.476929 )
Epeak [keV] : 34.3475      ( -9999.35 -9999.36 )
Norm@50keV  : 3.70631E-03    ( -0.000789933   0.010488 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.76 using 59 PHA bins.
# Reduced chi-squared =         0.9065 for     56 degrees of freedom 
# Null hypothesis probability =   6.727562e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.724198 ( -0.154746  0.154972 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.83817e-08 ( -1.3414e-08  1.36684e-08 ) ergs/cm2
 
Band function
Time interval is from    0.112 sec. to    1.112 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.96831   ( -4.96831   -4.96831 )
beta        : -1.91215    ( -0.627007   0.477867 )
Epeak [keV] : 20.5129      ( -20.5129 66.8163 )
Norm@50keV   : 2537.70    ( -538.957   6.78826e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.43 using 59 PHA bins.
# Reduced chi-squared =         0.9168 for     55 degrees of freedom 
# Null hypothesis probability =   6.498118e-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]    : 8.00969  (-2.63596  6.4274)
R^2/D10^2   : 0.726086  (-0.616147   2.76164)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.79 using 59 PHA bins.
# Reduced chi-squared =          1.102 for     57 degrees of freedom 
# Null hypothesis probability =   2.785246e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.431e-09   4.255e-09
25- 50  1.479e-08   8.650e-09
50-150  3.898e-09   2.625e-09
15-150  2.712e-08   1.392e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 99.8982       (-57.2367      -99.9324)
Norm        : 3.17161       (-0.852795     1.33102)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.58 using 59 PHA bins.
# Reduced chi-squared =         0.9224 for     57 degrees of freedom 
# Null hypothesis probability =   6.416002e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.290e-09   3.311e-09
25- 50  1.433e-08   8.050e-09
50-150  2.321e-08   1.790e-08
15-150  4.583e-08   3.060e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.91586        (-1.40687      2.05581)
R1^2/D10^2  : 4.26524        (-3.24494      12.0001)
kT2 [keV]   : 30.7645        (-13.5227      117.123)
R2^2/D10^2  : 5.35662E-03    (-0.00516564   0.0292889)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.23 using 59 PHA bins.
# Reduced chi-squared =         0.8769 for     55 degrees of freedom 
# Null hypothesis probability =   7.290660e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.047e-08   6.060e-09
25- 50  1.093e-08   5.935e-09
50-150  3.243e-08   1.919e-08
15-150  5.383e-08   2.925e-08
Plot creation:
Mon Dec  7 21:04:06 EST 2015