batgrbproduct analysis for trigger=769567

batgrbproduct Analysis for Trigger=769567

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Aug 28 08:30:49 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger769567/GCN5_download_cron
======================================================================

  Trigger: 00769567      Segment: 000

  BAT Trigger Time: 525503568   [s; MET]
      Trigger Stop: 525503632   [s; MET]
               UTC: 2017-08-27T05:12:28.408920    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 276.180423079966   Dec: -40.2199088737139  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.28
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    7.28

  Flight Position:   [ source = BAT ]
    RA: 276.180423079966   Dec: -40.2199088737139  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 276.187763946904   Dec: -40.2038897505641  [deg; J2000]  
        { 18h 24m 45.1s , -40d 12' 14.0" }
         +/- 2.02543616401176 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.836090754376413 [arcmin] (formal 1-sigma fit error)
    SNR: 11.0977445221991
 
  Angular difference between Flight and Ground position is 1.018302 arcmin
 
  Partial Coding Fraction: 0.984375    [ including projection effects ]

  Duration
     T90: 109.339999914169 +/- 25.7051645793594
        Measured from: 24.3080001473427
                   to: 133.648000061512     [s; relative to TRIGTIME]
     T50: 49.0919999480247 +/- 15.0826273634608
        Measured from: 45.4800001382828
                   to: 94.5720000863075     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 67.1280000209808     
                   to: 68.1280000209808     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 16.7639999985695     
                   to: 158.216000020504     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.658312   0.696165   0.765296   0.171338
           0.081221   0.076902   0.065823   0.058178 [error]
 Peak      0.021776   0.011138   0.020192   0.004917
           0.007116   0.006584   0.005524   0.004818 [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 1.50e-07 3.27e-07 5.61e-07 2.21e-06 1.54e-06 3.25e-06   erg/cm2
              Error 3.03e-08 3.79e-08 6.44e-08 6.04e-07 1.62e-07 6.35e-07   erg/cm2
Peak flux Power-law 1.36e-01 1.39e-01 1.00e-01 1.16e-01 4.20e-01 4.90e-01   ph/cm2/s
              Error 9.72e-02 5.78e-02 4.83e-02 1.36e-01 1.56e-01 1.78e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.51e-07 3.28e-07 5.61e-07 2.19e-06 1.54e-06 3.23e-06   erg/cm2
              Error 3.36e-08 3.89e-08 6.88e-08 8.09e-07 1.65e-07 8.03e-07   erg/cm2
Peak flux Cutoff-PL 1.35e-01 1.39e-01 1.00e-01 1.16e-01 4.19e-01 4.90e-01   ph/cm2/s
              Error 9.60e-02 5.76e-02 4.83e-02 1.50e-01 1.56e-01 1.79e-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    1.224    0.184    -      -           1.10e-03 1.06e-04   45.050 57
CPL   1.220    0.428    9999.2    0.0      1.10e-03 1.10e-03   45.050 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.471    0.825    -      -           3.39e-03 1.27e-03   57.940 57
CPL   1.488    0.000    9999.4    0.0      3.39e-03 0.00e+00   57.940 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: 91.712000 sec.
T50 in the 50-300 keV band: 44.224000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  141.452   16.764  158.216
T90   109.340   24.308  133.648
T50    49.092   45.480   94.572
Peak    1.000   67.128   68.128

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  276.1878 -40.2039 0.0172   18.4  172.1       1.2640    11.1  TRIG_00769567       
------------------------------------------
 
Foreground time interval of the image:
 16.764  70.101 (delta_t =  53.337 [sec])
Background time interval of the image:
-78.499  16.764 (delta_t =  95.263 [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
Multiple GTIs in the spectrum
tstart tstop
16.764000 75.290000
76.000000 76.660000
78.000000 81.290000
82.000000 158.216000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.22440     ( -0.185321   0.182721 )
Norm@50keV  : 1.09937E-03    ( -0.000106151   0.000106033 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.05 using 59 PHA bins.
# Reduced chi-squared =         0.7903 for     57 degrees of freedom 
# Null hypothesis probability =   8.739841e-01
 
Photon flux (15-150 keV)    in 138.7 sec: 0.129504 ( -0.0131988  0.0132589 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.53655e-06 ( -1.61701e-07  1.6278e-07 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
16.764000 75.290000
76.000000 76.660000
78.000000 81.290000
82.000000 158.216000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.21992     ( -0.662714   0.192349 )
Epeak [keV] : 9999.25      ( -9999.27 -9999.27 )
Norm@50keV  : 1.10444E-03    ( -0.00110444   0.00108652 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.05 using 59 PHA bins.
# Reduced chi-squared =         0.8044 for     56 degrees of freedom 
# Null hypothesis probability =   8.524782e-01
 
Photon flux (15-150 keV)    in 138.7 sec: 0.129455 ( -0.013993  0.013104 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.53605e-06 ( -1.6841e-07  1.62543e-07 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
16.764000 75.290000
76.000000 76.660000
78.000000 81.290000
82.000000 158.216000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.978026   ( 0.978026   0.978026 )
beta        : -1.22439    ( -0.182647   0.185453 )
Epeak [keV] : 47.5771      ( -47.5761 -47.5761 )
Norm@50keV   : 2.02149E-03    ( -0.00102806   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.05 using 59 PHA bins.
# Reduced chi-squared =         0.8190 for     55 degrees of freedom 
# Null hypothesis probability =   8.285909e-01
 
Photon flux (15-150 keV)    in 138.7 sec: 0.128961 (    ) 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]    : 20.8686  (-2.60973  3.13253)
R^2/D10^2   : 5.03465E-03  (-0.00183109   0.00277314)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.55 using 59 PHA bins.
# Reduced chi-squared =          1.167 for     57 degrees of freedom 
# Null hypothesis probability =   1.813716e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.761e-08   1.261e-08
25- 50  2.950e-07   4.452e-08
50-150  9.569e-07   1.801e-07
15-150  1.309e-06   1.903e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-27.6073      -200)
Norm        : 0.542879       (-0.053236     0.053236)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.61 using 59 PHA bins.
# Reduced chi-squared =         0.9757 for     57 degrees of freedom 
# Null hypothesis probability =   5.271881e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.876e-07   9.954e-08
25- 50  3.608e-07   1.719e-07
50-150  7.913e-07   4.240e-07
15-150  1.340e-06   6.661e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.55368        (-1.60376      2.21167)
R1^2/D10^2  : 0.599597        (-0.484617      2.60022)
kT2 [keV]   : 26.0849        (-4.19993      6.5128)
R2^2/D10^2  : 2.27758E-03    (-0.00116978   0.00179494)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.78 using 59 PHA bins.
# Reduced chi-squared =         0.7596 for     55 degrees of freedom 
# Null hypothesis probability =   9.055185e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.735e-07   8.493e-08
25- 50  2.820e-07   8.121e-08
50-150  1.061e-06   2.688e-07
15-150  1.516e-06   3.732e-07

Peak spectrum fit

Power-law model
Time interval is from   67.128 sec. to   68.128 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.47119     ( -0.818836   0.832111 )
Norm@50keV  : 3.38820E-03    ( -0.00131108   0.001219 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.94 using 59 PHA bins.
# Reduced chi-squared =          1.016 for     57 degrees of freedom 
# Null hypothesis probability =   4.404498e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.419742 ( -0.156196  0.156526 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.23054e-08 ( -1.31178e-08  1.33819e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   67.128 sec. to   68.128 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.48759     (     )
Epeak [keV] : 9999.36      (   )
Norm@50keV  : 3.38973E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.94 using 59 PHA bins.
# Reduced chi-squared =          1.035 for     56 degrees of freedom 
# Null hypothesis probability =   4.033981e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.419335 ( -0.154932  0.156627 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.19416e-08 ( -1.27042e-08  1.32344e-08 ) ergs/cm2
 
Band function
Time interval is from   67.128 sec. to   68.128 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.25621   ( 1.25628   1.25628 )
beta        : -1.46992    ( 1.47031   0.818768 )
Epeak [keV] : 14.1571      ( -14.1134 -14.1134 )
Norm@50keV   : 7.17309E-03    ( -0.00717991   0.117271 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.94 using 59 PHA bins.
# Reduced chi-squared =          1.053 for     55 degrees of freedom 
# Null hypothesis probability =   3.674257e-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]    : 26.0290  (-11.6862  28.6003)
R^2/D10^2   : 7.31886E-03  (-0.00730805   0.0416167)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.21 using 59 PHA bins.
# Reduced chi-squared =          1.091 for     57 degrees of freedom 
# Null hypothesis probability =   2.961379e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.944e-09   3.740e-09
25- 50  6.407e-09   4.315e-09
50-150  6.792e-10   6.200e-10
15-150  1.303e-08   8.285e-09
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-199.363      -199.363)
Norm        : 1.70179       (-0.612014     0.612088)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.58 using 59 PHA bins.
# Reduced chi-squared =          1.028 for     57 degrees of freedom 
# Null hypothesis probability =   4.174080e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.238e-09   2.778e-09
25- 50  8.152e-09   5.015e-09
50-150  1.788e-08   1.091e-08
15-150  3.027e-08   1.896e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.73423        (-1.99123      2.77467)
R1^2/D10^2  : 2.92290        (-2.55678      38.226)
kT2 [keV]   : 37.1919        (-16.7116      -37.2983)
R2^2/D10^2  : 2.27087E-03    (-0.00216   0.00598937)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.48 using 59 PHA bins.
# Reduced chi-squared =         0.9905 for     55 degrees of freedom 
# Null hypothesis probability =   4.945510e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.110e-09   3.852e-09
25- 50  6.082e-09   3.348e-09
50-150  2.489e-08   1.670e-08
15-150  3.708e-08   2.007e-08
Plot creation:
Mon Aug 28 08:43:34 EDT 2017