batgrbproduct analysis for trigger=776347

batgrbproduct Analysis for Trigger=776347

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu Oct  5 16:04:44 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger776347/GCN5_download_cron
======================================================================

  Trigger: 00776347      Segment: 000

  BAT Trigger Time: 528796552   [s; MET]
      Trigger Stop: 528796640   [s; MET]
               UTC: 2017-10-04T07:55:32.213440    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 139.161615042698   Dec: 52.6799760162536  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    15.15
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    15.15

  Flight Position:   [ source = BAT ]
    RA: 139.161615042698   Dec: 52.6799760162536  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 139.151525786027   Dec: 52.6817498943591  [deg; J2000]  
        { 09h 16m 36.4s , +52d 40' 54.3" }
         +/- 1.31915569973388 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.382269414853367 [arcmin] (formal 1-sigma fit error)
    SNR: 20.4770253606611
 
  Angular difference between Flight and Ground position is 0.382121 arcmin
 
  Partial Coding Fraction: 0.421875    [ including projection effects ]

  Duration
     T90: 128 +/- 16
        Measured from: 1.00000011920929
                   to: 129.000000119209     [s; relative to TRIGTIME]
     T50: 64 +/- 16
        Measured from: 17.0000001192093
                   to: 81.0000001192093     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 56.5     
                   to: 57.5     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 1     
                   to: 161     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.460667   1.760271   1.335098   0.358862
           0.107532   0.112577   0.098868   0.086877 [error]
 Peak      0.035080   0.018779   0.024739   0.010240
           0.009906   0.009897   0.008500   0.007692 [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 5.00e-07 8.33e-07 1.05e-06 2.66e-06 3.13e-06 5.05e-06   erg/cm2
              Error 6.00e-08 5.96e-08 9.79e-08 5.36e-07 2.32e-07 6.08e-07   erg/cm2
Peak flux Power-law 3.65e-01 2.53e-01 1.15e-01 7.28e-02 7.69e-01 8.06e-01   ph/cm2/s
              Error 1.79e-01 8.87e-02 9.52e-02 1.02e-01 2.62e-01 2.76e-01   ph/cm2/s
 
Fluence   Cutoff-PL 5.01e-07 8.34e-07 1.05e-06 2.64e-06 3.13e-06 5.03e-06   erg/cm2
              Error 6.26e-08 6.16e-08 9.90e-08 8.62e-07 1.75e-07 8.90e-07   erg/cm2
Peak flux Cutoff-PL 3.66e-01 2.53e-01 1.15e-01 7.17e-02 7.69e-01 8.05e-01   ph/cm2/s
              Error 1.78e-01 9.22e-02 7.62e-02 1.01e-01 2.61e-01 2.74e-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    1.661    0.125    -      -           2.11e-03 1.48e-04   48.980 57
CPL   1.665    0.126    9999.4   -0.0      2.10e-03 1.64e-03   48.990 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.137    0.800    -      -           4.80e-03 2.35e-03   49.610 57
CPL   2.154    0.000     158.6    0.0      4.65e-03 0.00e+00   49.570 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: 96.704000 sec.
T50 in the 50-300 keV band: 40.320000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  160.000    1.000  161.000
T90   128.000    1.000  129.000
T50    64.000   17.000   81.000
Peak    1.000   56.500   57.500

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  139.1515 +52.6817 0.0094   44.6   -6.1       4.5259    20.5  TRIG_00776347       
------------------------------------------
 
Foreground time interval of the image:
  1.000  95.301 (delta_t =  94.301 [sec])
Background time interval of the image:
-239.000   1.000 (delta_t = 240.000 [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    1.000 sec. to  161.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.66116     ( -0.124677   0.126034 )
Norm@50keV  : 2.10523E-03    ( -0.000148255   0.000147488 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.98 using 59 PHA bins.
# Reduced chi-squared =         0.8593 for     57 degrees of freedom 
# Null hypothesis probability =   7.661805e-01
 
Photon flux (15-150 keV)    in 160 sec: 0.275911 ( -0.0197168  0.01979 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.12928e-06 ( -2.31867e-07  2.32949e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.000 sec. to  161.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.66488     ( -0.128884   0.123507 )
Epeak [keV] : 9999.36      ( -9999.35 -9999.36 )
Norm@50keV  : 2.10326E-03    ( -0.00210763   0.00116472 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.99 using 59 PHA bins.
# Reduced chi-squared =         0.8749 for     56 degrees of freedom 
# Null hypothesis probability =   7.350986e-01
 
Photon flux (15-150 keV)    in 160 sec: 0.275762 ( -0.019723  0.019562 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.1287e-06 ( -1.17984e-07  2.31296e-07 ) ergs/cm2
 
Band function
Time interval is from    1.000 sec. to  161.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.34112   ( 1.34136   1.34136 )
beta        : -1.66076    ( -0.12611   0.124501 )
Epeak [keV] : 24.4349      ( -24.3681 -24.3681 )
Norm@50keV   : 4.58675E-03    ( -0.00236472   0.301582 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.98 using 59 PHA bins.
# Reduced chi-squared =         0.8906 for     55 degrees of freedom 
# Null hypothesis probability =   7.026684e-01
 
Photon flux (15-150 keV)    in 160 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]    : 14.1277  (  )
R^2/D10^2   : 3.62372E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         116.40 using 59 PHA bins.
# Reduced chi-squared =         2.0422 for     57 degrees of freedom 
# Null hypothesis probability =   5.847821e-06
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.442e-07   3.272e-08
25- 50  9.165e-07   8.176e-08
50-150  1.210e-06   1.571e-07
15-150  2.371e-06   1.968e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 163.303       (-46.3631      -163.324)
Norm        : 1.11979       (-0.0883145     0.101598)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.61 using 59 PHA bins.
# Reduced chi-squared =         0.9055 for     57 degrees of freedom 
# Null hypothesis probability =   6.766412e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.566e-07   4.912e-08
25- 50  8.565e-07   1.531e-07
50-150  1.749e-06   6.909e-07
15-150  3.062e-06   8.670e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.83774        (-1.46266      1.63051)
R1^2/D10^2  : 0.357942        (-0.185181      0.474543)
kT2 [keV]   : 28.2538        (-6.22816      12.3769)
R2^2/D10^2  : 2.40976E-03    (-0.00167068   0.00358581)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.73 using 59 PHA bins.
# Reduced chi-squared =         0.9588 for     55 degrees of freedom 
# Null hypothesis probability =   5.616967e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.695e-07   1.159e-07
25- 50  8.490e-07   1.786e-07
50-150  1.812e-06   6.627e-07
15-150  3.131e-06   9.154e-07

Peak spectrum fit

Power-law model
Time interval is from   56.500 sec. to   57.500 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.13732     ( -0.68975   0.910261 )
Norm@50keV  : 4.79636E-03    ( -0.0025121   0.00219598 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.61 using 59 PHA bins.
# Reduced chi-squared =         0.8703 for     57 degrees of freedom 
# Null hypothesis probability =   7.458823e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.768794 ( -0.261726  0.261751 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.47365e-08 ( -1.85945e-08  1.96462e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   56.500 sec. to   57.500 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.15419     ( -1.99914   -1.99914 )
Epeak [keV] : 158.551      (   )
Norm@50keV  : 4.65167E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.57 using 59 PHA bins.
# Reduced chi-squared =         0.8852 for     56 degrees of freedom 
# Null hypothesis probability =   7.151991e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.768588 ( -0.261239  0.261572 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.43574e-08 ( -1.82318e-08  2.97072e-08 ) ergs/cm2
 
Band function
Time interval is from   56.500 sec. to   57.500 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -9.95367   ( 9.95367   9.95367 )
beta        : -2.13741    ( -0.910198   0.68996 )
Epeak [keV] : 15.4846      ( -15.4846 -15.4846 )
Norm@50keV   : 0.651865    ( -0.341425   0.298472 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.61 using 59 PHA bins.
# Reduced chi-squared =         0.9020 for     55 degrees of freedom 
# Null hypothesis probability =   6.800445e-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]    : 5.52668  (-2.00435  12.9654)
R^2/D10^2   : 3.57444  (-3.54398   25.9091)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.81 using 59 PHA bins.
# Reduced chi-squared =         0.9617 for     57 degrees of freedom 
# Null hypothesis probability =   5.575309e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.277e-08   7.655e-09
25- 50  1.059e-08   7.120e-09
50-150  6.838e-10   6.875e-10
15-150  2.404e-08   1.571e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 62.5472       (-62.5895      -62.5895)
Norm        : 3.86767       (-1.7871     5.56884)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.57 using 59 PHA bins.
# Reduced chi-squared =         0.8872 for     57 degrees of freedom 
# Null hypothesis probability =   7.133747e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.783e-09   6.345e-09
25- 50  1.508e-08   9.490e-09
50-150  1.775e-08   1.457e-08
15-150  4.261e-08   2.885e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.14391        (-1.90537      2.57328)
R1^2/D10^2  : 10.5998        (-6.7747      32.2044)
kT2 [keV]   : 21.0759        (-16.3143      -20.9675)
R2^2/D10^2  : 1.56508E-02    (-0.015572   0.085916)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.27 using 59 PHA bins.
# Reduced chi-squared =         0.8776 for     55 degrees of freedom 
# Null hypothesis probability =   7.275951e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.272e-08   8.095e-09
25- 50  1.131e-08   5.705e-09
50-150  2.244e-08   1.524e-08
15-150  4.647e-08   2.487e-08
Plot creation:
Thu Oct  5 16:29:56 EDT 2017