batgrbproduct analysis for trigger=772052

batgrbproduct Analysis for Trigger=772052

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Sep 13 10:37:30 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger772052/GCN5_download_cron
======================================================================

  Trigger: 00772052      Segment: 000

  BAT Trigger Time: 526890846.512   [s; MET]
      Trigger Stop: 526890846.576   [s; MET]
               UTC: 2017-09-12T06:33:46.838680    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 215.466285762874   Dec: -62.0301303055386  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.99
     Image Trigger?:     NO
     Rate S/N Ratio:     20.7364413533277  [ if not an image trigger ]
     Image S/N Ratio:    9.99

  Flight Position:   [ source = BAT ]
    RA: 215.466285762874   Dec: -62.0301303055386  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 215.466280968469   Dec: -61.9981548518884  [deg; J2000]  
        { 14h 21m 51.9s , -61d 59' 53.4" }
         +/- 0.636480460463231 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.185186906831443 [arcmin] (formal 1-sigma fit error)
    SNR: 57.9996556064216
 
  Angular difference between Flight and Ground position is 1.918527 arcmin
 
  Partial Coding Fraction: 1.03125    [ including projection effects ]

  Duration
     T90: 17.7760000228882 +/- 7.93703218078818
        Measured from: -0.00799989700317383
                   to: 17.768000125885     [s; relative to TRIGTIME]
     T50: 7.58400005102158 +/- 0.307349953268932
        Measured from: 1.40000009536743
                   to: 8.98400014638901     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.0840000510215759     
                   to: 0.915999948978424     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -1.57600003480911     
                   to: 38.6959999799728     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.602121   1.806436   0.961837   0.228181
           0.051341   0.048106   0.037826   0.029937 [error]
 Peak      0.228344   0.293705   0.149681   0.015716
           0.010804   0.010931   0.008432   0.005334 [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 4.80e-07 6.98e-07 7.56e-07 1.53e-06 2.41e-06 3.47e-06   erg/cm2
              Error 3.05e-08 2.55e-08 3.84e-08 1.70e-07 8.89e-08 1.97e-07   erg/cm2
Peak flux Power-law 2.34e+00 1.91e+00 1.06e+00 8.59e-01 5.69e+00 6.17e+00   ph/cm2/s
              Error 1.79e-01 9.23e-02 6.92e-02 1.11e-01 2.78e-01 2.89e-01   ph/cm2/s
 
Fluence   Cutoff-PL 4.64e-07 7.09e-07 7.60e-07 1.15e-06 2.37e-06 3.08e-06   erg/cm2
              Error 3.73e-08 2.96e-08 3.97e-08 4.34e-07 1.06e-07 3.28e-07   erg/cm2
Peak flux Cutoff-PL 2.11e+00 2.04e+00 1.09e+00 4.09e-01 5.51e+00 5.65e+00   ph/cm2/s
              Error 2.11e-01 1.15e-01 7.70e-02 1.57e-01 2.92e-01 3.35e-01   ph/cm2/s
 
Fluence        Band 4.40e-07 7.20e-07 7.44e-07 1.38e-06 2.35e-06 3.31e-06   erg/cm2
              Error -------- 3.27e-08 3.99e-08 -------- -------- --------   erg/cm2
Peak flux      Band 1.97e+00 2.16e+00 1.03e+00 6.29e-01 5.46e+00 5.78e+00   ph/cm2/s
              Error 2.43e-01 1.33e-01 7.59e-02 -------- 2.98e-01 3.29e-01   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.884    0.070    -      -           6.50e-03 2.40e-04   43.120 57
CPL   1.701    0.255      79.1  -27.6      8.05e-03 2.38e-03   41.720 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.855    0.083    -      -           4.04e-02 2.05e-03   62.030 57
CPL   1.181    0.367      56.6   11.1      9.22e-02 4.32e-02   50.310 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: 41.920000 sec.
T50 in the 50-300 keV band: 8.064000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   40.272   -1.576   38.696
T90    17.776   -0.008   17.768
T50     7.584    1.400    8.984
Peak    1.000   -0.084    0.916

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  215.4663 -61.9982 0.0033   10.4 -152.7       3.4094    58.0  TRIG_00772052       
------------------------------------------
 
Foreground time interval of the image:
 -1.576   8.789 (delta_t =  10.365 [sec])
Background time interval of the image:
-239.512  -1.576 (delta_t = 237.936 [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   -1.576 sec. to   38.696 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.88429     ( -0.0692462   0.0697726 )
Norm@50keV  : 6.49885E-03    ( -0.000240929   0.00024001 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.12 using 59 PHA bins.
# Reduced chi-squared =         0.7565 for     57 degrees of freedom 
# Null hypothesis probability =   9.130827e-01
 
Photon flux (15-150 keV)    in 40.27 sec: 0.926496 ( -0.0355959  0.0357439 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.40587e-06 ( -8.87937e-08  8.9043e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -1.576 sec. to   38.696 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.70100     ( -0.279747   0.230014 )
Epeak [keV] : 79.0555      ( -23.9386 -79.0558 )
Norm@50keV  : 8.05320E-03    ( -0.00171778   0.003037 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.72 using 59 PHA bins.
# Reduced chi-squared =         0.7450 for     56 degrees of freedom 
# Null hypothesis probability =   9.222883e-01
 
Photon flux (15-150 keV)    in 40.27 sec: 0.913387 ( -0.039864  0.040004 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.36568e-06 ( -1.06438e-07  1.0591e-07 ) ergs/cm2
 
Band function
Time interval is from   -1.576 sec. to   38.696 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.70100   ( 1.77695   0.339911 )
beta        : -10.00000    ( 10   20 )
Epeak [keV] : 79.0414      ( -22.4207 -79.0414 )
Norm@50keV   : 8.05142E-03    ( -0.00261189   0.0029369 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.72 using 59 PHA bins.
# Reduced chi-squared =         0.7585 for     55 degrees of freedom 
# Null hypothesis probability =   9.067060e-01
 
Photon flux (15-150 keV)    in 40.27 sec: 0.897345 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.35356e-06 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 12.2986  (  )
R^2/D10^2   : 0.186824  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         227.65 using 59 PHA bins.
# Reduced chi-squared =         3.9939 for     57 degrees of freedom 
# Null hypothesis probability =   2.970657e-22
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.411e-07   1.705e-08
25- 50  7.807e-07   3.222e-08
50-150  7.216e-07   5.759e-08
15-150  1.743e-06   6.826e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 94.1549       (-11.8693      14.8573)
Norm        : 4.03633       (-0.233481     0.253822)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.96 using 59 PHA bins.
# Reduced chi-squared =         0.8238 for     57 degrees of freedom 
# Null hypothesis probability =   8.261471e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.246e-07   3.093e-08
25- 50  7.251e-07   3.040e-08
50-150  1.135e-06   2.801e-07
15-150  2.284e-06   2.819e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.82277        (-0.72077      0.753752)
R1^2/D10^2  : 1.26855        (-0.393418      0.642931)
kT2 [keV]   : 24.7210        (-3.22529      4.52499)
R2^2/D10^2  : 1.01214E-02    (-0.00466563   0.00728273)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.58 using 59 PHA bins.
# Reduced chi-squared =         0.7924 for     55 degrees of freedom 
# Null hypothesis probability =   8.665286e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.152e-07   4.567e-08
25- 50  7.296e-07   5.436e-08
50-150  1.187e-06   1.951e-07
15-150  2.332e-06   2.565e-07

Peak spectrum fit

Power-law model
Time interval is from   -0.084 sec. to    0.916 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.85509     ( -0.082721   0.0838595 )
Norm@50keV  : 4.04215E-02    ( -0.00205946   0.00204803 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.03 using 59 PHA bins.
# Reduced chi-squared =          1.088 for     57 degrees of freedom 
# Null hypothesis probability =   3.015885e-01
 
Photon flux (15-150 keV)    in 1 sec: 5.69344 ( -0.278142  0.278613 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.71645e-07 ( -1.89781e-08  1.90533e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.084 sec. to    0.916 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.18119     ( -0.384862   0.349916 )
Epeak [keV] : 56.5654      ( -7.55413 14.6703 )
Norm@50keV  : 9.22312E-02    ( -0.0315779   0.0548898 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.31 using 59 PHA bins.
# Reduced chi-squared =         0.8983 for     56 degrees of freedom 
# Null hypothesis probability =   6.893004e-01
 
Photon flux (15-150 keV)    in 1 sec: 5.51159 ( -0.29198  0.29233 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.52769e-07 ( -2.1346e-08  2.1376e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.084 sec. to    0.916 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.468482   ( -0.907075   3.98824 )
beta        : -2.13520    ( -0.28455   0.187566 )
Epeak [keV] : 35.9096      ( -10.7848 11.504 )
Norm@50keV   : 1.18825    ( -1.16551   283.862 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.41 using 59 PHA bins.
# Reduced chi-squared =         0.8256 for     55 degrees of freedom 
# Null hypothesis probability =   8.184496e-01
 
Photon flux (15-150 keV)    in 1 sec: 5.46169 ( 1.53831  -0.29761 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.55498e-07 ( -3.55491e-07  -2.0273e-08 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 11.6473  (  )
R^2/D10^2   : 1.50258  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         127.16 using 59 PHA bins.
# Reduced chi-squared =         2.2308 for     57 degrees of freedom 
# Null hypothesis probability =   2.873571e-07
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.298e-08   3.790e-09
25- 50  1.305e-07   7.400e-09
50-150  1.043e-07   1.176e-08
15-150  2.778e-07   1.460e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 91.8818       (-13.7868      17.9929)
Norm        : 25.6190       (-0.942756     1.97055)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.38 using 59 PHA bins.
# Reduced chi-squared =         0.8839 for     57 degrees of freedom 
# Null hypothesis probability =   7.198167e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.688e-08   5.995e-09
25- 50  1.136e-07   5.300e-09
50-150  1.752e-07   4.935e-08
15-150  3.557e-07   4.825e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.56121        (-0.925776      0.939005)
R1^2/D10^2  : 5.53117        (-1.7505      2.95789)
kT2 [keV]   : 25.1245        (-4.3795      6.8588)
R2^2/D10^2  : 5.39547E-02    (-0.0321941   0.0632129)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.19 using 59 PHA bins.
# Reduced chi-squared =         0.8035 for     55 degrees of freedom 
# Null hypothesis probability =   8.513780e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.056e-08   7.725e-09
25- 50  1.201e-07   1.777e-08
50-150  1.758e-07   5.996e-08
15-150  3.564e-07   8.260e-08
Plot creation:
Wed Sep 13 10:46:58 EDT 2017