batgrbproduct Analysis for Trigger=676595

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Feb 29 20:06:37 EST 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger676595/GCN5_download_cron
======================================================================

  Trigger: 00676595      Segment: 000

  BAT Trigger Time: 478373688.384   [s; MET]
      Trigger Stop: 478373689.408   [s; MET]
               UTC: 2016-02-28T17:34:32.475720    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 107.322435346999   Dec: 26.9564510226191  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.09
     Image Trigger?:     NO
     Rate S/N Ratio:     29.9165506033032  [ if not an image trigger ]
     Image S/N Ratio:    10.09

  Flight Position:   [ source = BAT ]
    RA: 107.322435346999   Dec: 26.9564510226191  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 107.310663630657   Dec: 26.946064565477  [deg; J2000]  
        { 07h 09m 14.6s , +26d 56' 45.8" }
         +/- 1.35045152398585 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.567832859950911 [arcmin] (formal 1-sigma fit error)
    SNR: 19.8024903148955
 
  Angular difference between Flight and Ground position is 0.885861 arcmin
 
  Partial Coding Fraction: 0.8125    [ including projection effects ]

  Duration
     T90: 98.3639999032021 +/- 23.3476528930744
        Measured from: 0.92000013589859
                   to: 99.2840000391006     [s; relative to TRIGTIME]
     T50: 47.1879999637604 +/- 4.8691539141045
        Measured from: 11.6320000886917
                   to: 58.8200000524521     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.00800001621246338     
                   to: 0.991999983787537     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.00800001621246338     
                   to: 116.103999972343     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.755481   1.043113   0.902595   0.265605
           0.056181   0.058634   0.051299   0.044697 [error]
 Peak      0.024422   0.036850   0.068392   0.028170
           0.006022   0.006386   0.006380   0.005474 [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 2.13e-07 4.41e-07 7.13e-07 2.58e-06 1.97e-06 3.95e-06   erg/cm2
              Error 2.41e-08 2.91e-08 5.12e-08 4.22e-07 1.27e-07 4.52e-07   erg/cm2
Peak flux Power-law 1.37e-01 2.71e-01 4.16e-01 1.40e+00 1.16e+00 2.22e+00   ph/cm2/s
              Error 5.00e-02 5.97e-02 4.83e-02 3.96e-01 1.47e-01 3.65e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.07e-07 4.46e-07 7.22e-07 2.11e-06 1.96e-06 3.49e-06   erg/cm2
              Error 2.58e-08 3.26e-08 5.68e-08 8.95e-07 1.39e-07 6.97e-07   erg/cm2
Peak flux Cutoff-PL 1.39e-01 2.73e-01 4.16e-01 1.37e+00 1.17e+00 2.20e+00   ph/cm2/s
              Error -------- -------- 4.81e-02 5.40e-01 1.47e-01 5.34e-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    1.307    0.107    -      -           1.72e-03 9.99e-05   37.920 57
CPL   1.171    0.333     326.7    0.0      2.00e-03 7.67e-04   37.590 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.381    0.260    -      -           9.60e-03 1.51e-03   40.840 57
CPL   0.383    0.309    9999.4    0.0      9.73e-03 5.28e-03   40.870 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: 69.312000 sec.
T50 in the 50-300 keV band: 42.496000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  116.112   -0.008  116.104
T90    98.364    0.920   99.284
T50    47.188   11.632   58.820
Peak    1.000   -0.008    0.992

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  107.3107 +26.9461 0.0097   21.7   35.3       0.9219    19.8  TRIG_00676595       
------------------------------------------
 
Foreground time interval of the image:
 -0.008  15.717 (delta_t =  15.725 [sec])
Background time interval of the image:
-239.384  -0.008 (delta_t = 239.376 [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   -0.008 sec. to  116.104 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.30745     ( -0.106815   0.106308 )
Norm@50keV  : 1.72403E-03    ( -9.9957e-05   9.99359e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.92 using 59 PHA bins.
# Reduced chi-squared =         0.6653 for     57 degrees of freedom 
# Null hypothesis probability =   9.757570e-01
 
Photon flux (15-150 keV)    in 116.1 sec: 0.205966 ( -0.0124448  0.0124801 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.97437e-06 ( -1.26803e-07  1.27438e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.008 sec. to  116.104 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.17111     ( -0.437276   0.228828 )
Epeak [keV] : 326.690      ( -326.69 -326.69 )
Norm@50keV  : 2.00008E-03    ( -0.000361763   0.00117294 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.59 using 59 PHA bins.
# Reduced chi-squared =         0.6713 for     56 degrees of freedom 
# Null hypothesis probability =   9.720895e-01
 
Photon flux (15-150 keV)    in 116.1 sec: 0.204407 ( -0.013259  0.013229 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.95645e-06 ( -1.39796e-07  1.3802e-07 ) ergs/cm2
 
Band function
Time interval is from   -0.008 sec. to  116.104 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.12519   ( 1.10789   1.10789 )
beta        : -1.42926    ( 1.43945   0.230777 )
Epeak [keV] : 244.866      ( -266.637 -266.637 )
Norm@50keV   : 2.11607E-03    ( -0.00043947   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.56 using 59 PHA bins.
# Reduced chi-squared =         0.6830 for     55 degrees of freedom 
# Null hypothesis probability =   9.652017e-01
 
Photon flux (15-150 keV)    in 116.1 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]    : 17.8204  (-1.3673  1.52376)
R^2/D10^2   : 1.32514E-02  (-0.00319992   0.0041316)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          95.37 using 59 PHA bins.
# Reduced chi-squared =          1.673 for     57 degrees of freedom 
# Null hypothesis probability =   1.089605e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.813e-08   1.247e-08
25- 50  4.504e-07   3.384e-08
50-150  1.036e-06   1.151e-07
15-150  1.584e-06   1.155e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-14.7001      -200)
Norm        : 0.856542       (-0.0500998     0.0500998)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.45 using 59 PHA bins.
# Reduced chi-squared =         0.9377 for     57 degrees of freedom 
# Null hypothesis probability =   6.089857e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.477e-07   1.637e-08
25- 50  4.765e-07   3.495e-08
50-150  1.045e-06   3.010e-07
15-150  1.769e-06   2.711e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.76768        (-2.06824      2.75946)
R1^2/D10^2  : 0.195476        (-0.124033      0.312103)
kT2 [keV]   : 27.0646        (-4.95482      11.6336)
R2^2/D10^2  : 2.80679E-03    (-0.00193471   0.00294722)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.72 using 59 PHA bins.
# Reduced chi-squared =         0.7767 for     55 degrees of freedom 
# Null hypothesis probability =   8.862900e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.007e-07   6.857e-08
25- 50  4.404e-07   8.481e-08
50-150  1.282e-06   2.829e-07
15-150  1.923e-06   3.704e-07

Peak spectrum fit

Power-law model
Time interval is from   -0.008 sec. to    0.992 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.380936     ( -0.271276   0.248899 )
Norm@50keV  : 9.60019E-03    ( -0.00154281   0.0014718 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.84 using 59 PHA bins.
# Reduced chi-squared =         0.7166 for     57 degrees of freedom 
# Null hypothesis probability =   9.475455e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.16270 ( -0.146331  0.147505 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.37259e-07 ( -1.64836e-08  1.65186e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.008 sec. to    0.992 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.382551     ( -0.376792   0.240803 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 9.73149E-03    ( -0.00157017   0.00899975 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.87 using 59 PHA bins.
# Reduced chi-squared =         0.7299 for     56 degrees of freedom 
# Null hypothesis probability =   9.355844e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.16547 ( -0.14962  0.14445 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.37207e-07 ( -1.6365e-08  1.6582e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.008 sec. to    0.992 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.575098   ( 0.575204   0.575204 )
beta        : -0.380946    ( -0.249148   0.271276 )
Epeak [keV] : 21.4764      ( -21.476 -21.476 )
Norm@50keV   : 1.32990E-02    ( -0.00496894   92718.9 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.84 using 59 PHA bins.
# Reduced chi-squared =         0.7426 for     55 degrees of freedom 
# Null hypothesis probability =   9.224280e-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]    : 40.2464  (-7.63885  12.1429)
R^2/D10^2   : 8.81963E-03  (-0.00411362   0.00639342)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.76 using 59 PHA bins.
# Reduced chi-squared =         0.8029 for     57 degrees of freedom 
# Null hypothesis probability =   8.570348e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.835e-09   5.325e-10
25- 50  1.254e-08   3.304e-09
50-150  1.208e-07   2.876e-08
15-150  1.351e-07   2.728e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-19.6053      -200)
Norm        : 4.46159       (-0.621735     0.621735)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         103.75 using 59 PHA bins.
# Reduced chi-squared =         1.8202 for     57 degrees of freedom 
# Null hypothesis probability =   1.529070e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.110e-08   6.345e-09
25- 50  2.136e-08   1.190e-08
50-150  4.684e-08   2.601e-08
15-150  7.930e-08   4.460e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.87251        (-1.73968      2.85275)
R1^2/D10^2  : 7.33088        (-6.75476      162.961)
kT2 [keV]   : 45.6568        (-9.87084      18.2448)
R2^2/D10^2  : 6.32045E-03    (-0.00334909   0.00529655)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          35.95 using 59 PHA bins.
# Reduced chi-squared =         0.6536 for     55 degrees of freedom 
# Null hypothesis probability =   9.781545e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.229e-09   3.842e-09
25- 50  1.278e-08   4.096e-09
50-150  1.214e-07   3.545e-08
15-150  1.414e-07   3.985e-08
Plot creation:
Mon Feb 29 20:11:52 EST 2016