batgrbproduct analysis for trigger=784159

batgrbproduct Analysis for Trigger=784159

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Oct 30 16:47:15 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger784159/GCN5_download_cron
======================================================================

  Trigger: 00784159      Segment: 000

  BAT Trigger Time: 530997684.032   [s; MET]
      Trigger Stop: 530997685.056   [s; MET]
               UTC: 2017-10-29T19:21:04.114200    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 40.9309716071647   Dec: 61.6626894101486  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    7.82
     Image Trigger?:     NO
     Rate S/N Ratio:     11.2694276695846  [ if not an image trigger ]
     Image S/N Ratio:    7.82

  Flight Position:   [ source = BAT ]
    RA: 40.9309716071647   Dec: 61.6626894101486  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 41.219641204149   Dec: 61.6862487986327  [deg; J2000]  
        { 02h 44m 52.7s , +61d 41' 10.5" }
         +/- nan [arcmin] (estimated 90% radius based on SNR)
         +/- 1.26299080697809 [arcmin] (formal 1-sigma fit error)
    SNR: -6.59156811262242
 
  Angular difference between Flight and Ground position is 8.338763 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 274.499999940395 +/- 99.3829768753229
        Measured from: -102.403999865055
                   to: 172.09600007534     [s; relative to TRIGTIME]
     T50: 138.419999957085 +/- 98.5097186867797
        Measured from: -42.4119998812675
                   to: 96.0080000758171     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 50.7239999771118     
                   to: 51.7239999771118     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -116.596000015736     
                   to: 182.139999985695     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total    25.538011  18.349107   3.326636   0.011040
           0.120300   0.116058   0.088703   0.073810 [error]
 Peak      0.180165   0.154290   0.044640   0.004895
           0.008240   0.008163   0.005600   0.004330 [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 1.05e-05 6.78e-06 2.83e-06 1.61e-06 2.09e-05 2.17e-05   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux Power-law 1.87e+00 1.02e+00 3.50e-01 1.56e-01 3.33e+00 3.40e+00   ph/cm2/s
              Error 1.62e-01 6.78e-02 4.30e-02 3.48e-02 2.18e-01 2.20e-01   ph/cm2/s
 
Fluence   Cutoff-PL 7.78e-06 7.47e-06 2.38e-06 1.88e-07 1.78e-05 1.78e-05   erg/cm2
              Error 4.55e-07 1.61e-07 1.17e-07 4.92e-08 5.52e-07 5.57e-07   erg/cm2
Peak flux Cutoff-PL 1.70e+00 1.17e+00 2.93e-01 2.34e-02 3.18e+00 3.19e+00   ph/cm2/s
              Error 1.84e-01 9.64e-02 5.97e-02 -------- 2.26e-01 2.27e-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    3.258    0.000    -      -           5.14e-03 0.00e+00  261.210 57
CPL   1.000    0.000      50.0    0.0      1.48e-02 0.00e+00 2084.810 56
 
The chi2 of BB fit is 246.54 which shows a significant improvement in the fit over a PL.
Check the BB fit.
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.546    0.129    -      -           1.64e-02 1.54e-03   59.560 57
CPL   1.096    0.760      22.7    9.2      1.31e-01 1.93e-01   44.780 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: 96.192000 sec.
T50 in the 50-300 keV band: 51.648000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  298.736 -116.596  182.140
T90   274.500 -102.404  172.096
T50   138.420  -42.412   96.008
Peak    1.000   50.724   51.724
  • Click here for the BAT GCN circular template
  • Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minutes to calcaulte

    Image

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

    #   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
       41.2196 +61.6862 0.0292    0.1  -41.0     -14.3202    -6.6  TRIG_00784159       
    ------------------------------------------
     
    Foreground time interval of the image:
    -116.596 166.848 (delta_t = 283.444 [sec])
    167.968 182.140 (delta_t =  14.172 [sec])
    Background time interval of the image:
    -119.032 -116.596 (delta_t =   2.436 [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
    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 1.024000
    

    8 ms binning

    From T100_start-3 s to T100_start+3 s
    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 1.024000
    

    2 ms binning

    From T100_start-1 s to T100_start+1 s
    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 1.024000
    

    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
    -116.596000 166.848000
    167.968000 182.140000
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 3.25799     (     )
    Norm@50keV  : 5.13951E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         261.21 using 59 PHA bins.
    # Reduced chi-squared =         4.5827 for     57 degrees of freedom 
    # Null hypothesis probability =   6.462195e-28
     
    Photon flux (15-150 keV)    in 297.6 sec: 1.71560 (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.09217e-05 ( 0  0 ) ergs/cm2
     
    
    Cutoff power-law model
    Multiple GTIs in the spectrum
    tstart tstop
    -116.596000 166.848000
    167.968000 182.140000
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.00000     (     )
    Epeak [keV] : 50.0000      (   )
    Norm@50keV  : 1.47582E-02    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =        2084.81 using 59 PHA bins.
    # Reduced chi-squared =        37.2287 for     56 degrees of freedom 
    # Null hypothesis probability =   0.000000e+00
     
    Photon flux (15-150 keV)    in 297.6 sec: 1.40694 ( -0.05592  0.05684 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.78055e-05 ( -5.48834e-07  5.55113e-07 ) ergs/cm2
     
    
    Band function
    Multiple GTIs in the spectrum
    tstart tstop
    -116.596000 166.848000
    167.968000 182.140000
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.15645   ( -0.272636   0.492887 )
    beta        : -4.88266    ( 9.37167   19.3692 )
    Epeak [keV] : 16.1430      ( -4.05004 3.14639 )
    Norm@50keV   : 7.82499E-02    ( -0.0279219   0.0462205 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          49.32 using 59 PHA bins.
    # Reduced chi-squared =         0.8967 for     55 degrees of freedom 
    # Null hypothesis probability =   6.906091e-01
     
    Photon flux (15-150 keV)    in 297.6 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]    : 7.66205  (  )
    R^2/D10^2   : 1.57880  (   )
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         246.54 using 59 PHA bins.
    # Reduced chi-squared =         4.3252 for     57 degrees of freedom 
    # Null hypothesis probability =   2.057823e-25
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.821e-06   1.741e-07
    25- 50  7.818e-06   1.577e-07
    50-150  1.777e-06   7.931e-08
    15-150  1.442e-05   3.080e-07
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 21.9906       (-0.667103      0.696678)
    Norm        : 15.9081       (-0.856477     0.904319)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          50.40 using 59 PHA bins.
    # Reduced chi-squared =         0.8842 for     57 degrees of freedom 
    # Null hypothesis probability =   7.192085e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  7.923e-06   2.887e-07
    25- 50  7.445e-06   1.414e-07
    50-150  2.603e-06   1.190e-07
    15-150  1.797e-05   3.735e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 4.77453        (-0.442194      0.461053)
    R1^2/D10^2  : 9.62790        (-3.00209      5.05919)
    kT2 [keV]   : 10.3842        (-0.671125      0.894853)
    R2^2/D10^2  : 0.238053    (-0.0969893   0.124733)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          50.27 using 59 PHA bins.
    # Reduced chi-squared =         0.9140 for     55 degrees of freedom 
    # Null hypothesis probability =   6.555341e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  7.347e-06   6.934e-07
    25- 50  7.483e-06   5.044e-07
    50-150  2.507e-06   2.623e-07
    15-150  1.734e-05   1.104e-06
    

    Peak spectrum fit

    Power-law model
    Time interval is from   50.724 sec. to   51.724 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.54617     ( -0.126136   0.131575 )
    Norm@50keV  : 1.64494E-02    ( -0.00154867   0.00153554 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.56 using 59 PHA bins.
    # Reduced chi-squared =          1.045 for     57 degrees of freedom 
    # Null hypothesis probability =   3.827150e-01
     
    Photon flux (15-150 keV)    in 1 sec: 3.32503 ( -0.217957  0.218153 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.66615e-07 ( -1.18698e-08  1.19718e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   50.724 sec. to   51.724 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.09589     ( -0.821726   0.698633 )
    Epeak [keV] : 22.7224      ( -12.9033 5.48159 )
    Norm@50keV  : 0.131264    ( -0.0827896   0.304102 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          44.78 using 59 PHA bins.
    # Reduced chi-squared =         0.7996 for     56 degrees of freedom 
    # Null hypothesis probability =   8.591939e-01
     
    Photon flux (15-150 keV)    in 1 sec: 3.18388 ( -0.22534  0.22626 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.50409e-07 ( -1.2185e-08  1.2919e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   50.724 sec. to   51.724 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -0.720228   ( -1.2709   4.1305 )
    beta        : -3.38802    ( 3.23252   0.452457 )
    Epeak [keV] : 24.1516      ( -11.0192 3.78042 )
    Norm@50keV   : 0.240118    ( -0.394131   440.898 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          43.84 using 59 PHA bins.
    # Reduced chi-squared =         0.7970 for     55 degrees of freedom 
    # Null hypothesis probability =   8.603113e-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]    : 7.64421  (-0.502841  0.532882)
    R^2/D10^2   : 4.29451  (-1.07755   1.45052)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          67.04 using 59 PHA bins.
    # Reduced chi-squared =          1.176 for     57 degrees of freedom 
    # Null hypothesis probability =   1.706050e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.378e-08   4.370e-09
    25- 50  7.069e-08   5.265e-09
    50-150  1.594e-08   3.585e-09
    15-150  1.304e-07   9.600e-09
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 31.7081       (-4.10524      4.90053)
    Norm        : 25.4407       (-3.31327     3.87804)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.02 using 59 PHA bins.
    # Reduced chi-squared =         0.7899 for     57 degrees of freedom 
    # Null hypothesis probability =   8.745276e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.321e-08   4.435e-09
    25- 50  6.264e-08   4.245e-09
    50-150  3.684e-08   7.640e-09
    15-150  1.527e-07   1.130e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 5.24539        (-1.31396      1.23938)
    R1^2/D10^2  : 14.5372        (-7.26512      25.3499)
    kT2 [keV]   : 12.9092        (-3.08487      7.7039)
    R2^2/D10^2  : 0.262188    (-0.2327   0.847038)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          44.35 using 59 PHA bins.
    # Reduced chi-squared =         0.8063 for     55 degrees of freedom 
    # Null hypothesis probability =   8.473343e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.193e-08   1.348e-08
    25- 50  6.298e-08   2.032e-08
    50-150  3.483e-08   1.883e-08
    15-150  1.497e-07   4.671e-08
    

    Pre-slew spectrum (Pre-slew PHA with pre-slew DRM)

    Power-law model
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 3.25799     (     )
    Norm@50keV  : 5.13951E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         261.21 using 59 PHA bins.
    # Reduced chi-squared =         4.5827 for     57 degrees of freedom 
    # Null hypothesis probability =   6.462195e-28
     
    Photon flux (15-150 keV)    in 297.6 sec: 1.71560 (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.09217e-05 ( 0  0 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.00000     (     )
    Epeak [keV] : 50.0000      (   )
    Norm@50keV  : 1.47582E-02    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =        2084.81 using 59 PHA bins.
    # Reduced chi-squared =        37.2287 for     56 degrees of freedom 
    # Null hypothesis probability =   0.000000e+00
     
    Photon flux (15-150 keV)    in 297.6 sec: 1.40694 ( -0.05592  0.05684 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.78055e-05 ( -5.48834e-07  5.55113e-07 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.15645   ( -0.272636   0.492887 )
    beta        : -4.88266    ( 9.37167   19.3692 )
    Epeak [keV] : 16.1430      ( -4.05004 3.14639 )
    Norm@50keV   : 7.82499E-02    ( -0.0279219   0.0462205 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          49.32 using 59 PHA bins.
    # Reduced chi-squared =         0.8967 for     55 degrees of freedom 
    # Null hypothesis probability =   6.906091e-01
     
    Photon flux (15-150 keV)    in 297.6 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
     
    

    S(25-50 keV) vs. S(50-100 keV) plot

    S(25-50 keV)  = 6.78e-06
    S(50-100 keV) = 2.83e-06
    

    T90 vs. Hardness ratio plot

    T90                                   = 274.499999940395 sec.
    Hardness ratio (energy fluence ratio) = 0.417404
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 0.718502
    Count Ratio (50-100 keV) / (15-25 keV) = 0.130262
    

    Mask shadow pattern

    IMX = 1.200179702207422E-03, IMY = 1.044026610565082E-03
    

    TIME vs. PHA plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 1.024000
    

    TIME vs. DetID plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 1.024000
    

    100 us light curve (15-350 keV)

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 1.024000
    

    Spacecraft aspect plot

    Bright source in the pre-burst/pre-slew/post-slew images

    Pre-burst image of 15-350 keV band

    Time interval of the image:
    -119.032000 -116.596000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.7144  22.0978   10.1  49.1   25.1  -0.0760  -1.1    6.7	Crab                          
    308.0528  40.9444    7.9  56.1 -164.0  -0.1399  -1.5    2.6	Cyg X-3                       
    326.1133  38.4216    8.1  49.9 -180.0  -0.0761  -1.4    6.6	Cyg X-2                       
    346.1976  41.7510    1.9  37.8  165.5   0.1866   6.2 ------	UNKNOWN                       
     41.0392  61.6535    0.4   0.0 -127.0   0.4878  27.0 ------	UNKNOWN                       
    

    Pre-slew background subtracted image of 15-350 keV band

    Time interval of the image:
    -116.596000 166.848000
    167.968000 182.140000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.7135  22.0982    7.0  49.1   25.1  13.1152   1.6    6.7	Crab                          
    308.0505  40.9322   10.3  56.1 -164.1  12.6054   1.1    3.0	Cyg X-3                       
    326.1090  38.4170   10.2  50.0 -180.0   7.2191   1.1    6.4	Cyg X-2                       
    348.4441  24.9780    2.7  50.7  149.8  46.7629   4.2 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    -119.032000 166.848000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.7331  22.0881   15.7  49.1   25.1   1.2201   0.7    7.1	Crab                          
    308.0356  40.9717    4.5  56.1 -164.0  -5.5397  -2.6    3.6	Cyg X-3                       
    326.2419  38.2347    6.0  50.0  179.8   2.3776   1.9    6.2	Cyg X-2                       
    349.5392  25.4801    2.7  49.8  149.0   9.1143   4.3 ------	UNKNOWN                       
     41.9456  51.3007    2.5  10.3   78.2   2.0733   4.6 ------	UNKNOWN                       
    333.1145  43.3126    2.3  42.8  178.5   4.0164   5.0 ------	UNKNOWN                       
     40.9923  61.6458    0.1   0.0 -173.9  45.9165 102.9 ------	UNKNOWN                       
    302.5665  42.2553    2.3  57.3 -159.1  14.5426   5.0 ------	UNKNOWN                       
    285.1287  86.5205    2.7  30.0 -105.0   3.1862   4.2 ------	UNKNOWN                       
    300.2835  60.6525    3.3  43.7 -142.9   3.5121   3.5 ------	UNKNOWN                       
    
    Plot creation:
    Mon Oct 30 16:50:52 EDT 2017