batgrbproduct analysis for trigger=797070

batgrbproduct Analysis for Trigger=797070

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Dec 15 09:23:19 EST 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger797070/GCN5_download_cron
======================================================================

  Trigger: 00797070      Segment: 000

  BAT Trigger Time: 534917749.312   [s; MET]
      Trigger Stop: 534917751.36   [s; MET]
               UTC: 2017-12-14T04:15:29.159520    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 41.1958194987679   Dec: 15.3172018899938  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    6.78
     Image Trigger?:     NO
     Rate S/N Ratio:     7.34846922834953  [ if not an image trigger ]
     Image S/N Ratio:    6.78

  Flight Position:   [ source = BAT ]
    RA: 41.1958194987679   Dec: 15.3172018899938  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 41.1876239085155   Dec: 15.3391554113705  [deg; J2000]  
        { 02h 44m 45.0s , +15d 20' 21.0" }
         +/- 3.60968507472348 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.97835478498014 [arcmin] (formal 1-sigma fit error)
    SNR: 4.86108982354677
 
  Angular difference between Flight and Ground position is 1.399983 arcmin
 
  Partial Coding Fraction: 1    [ including projection effects ]

  Duration
     T90: 2.04800003767014 +/- 
        Measured from: 0
                   to: 2.04800003767014     [s; relative to TRIGTIME]
     T50: 2.04800003767014 +/- 
        Measured from: 0
                   to: 2.04800003767014     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 2.04800003767014 second)
        Measured from: -2.98023223876953e-08     
                   to: 2.04800000786781     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 2.04800003767014     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.034713   0.051387  -0.013500   0.006235
           0.010402   0.010572   0.008200   0.007090 [error]
 Peak      0.034713   0.051387  -0.013500   0.006235
           0.010402   0.010572   0.008200   0.007090 [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 1.08e-08 1.08e-08 7.55e-09 8.34e-09 3.24e-08 3.76e-08   erg/cm2
              Error 4.13e-09 4.27e-09 5.07e-09 1.12e-08 1.40e-08 1.99e-08   erg/cm2
Peak flux Power-law 1.74e-01 9.68e-02 3.39e-02 1.55e-02 3.13e-01 3.20e-01   ph/cm2/s
              Error 6.67e-02 3.81e-02 2.21e-02 1.95e-02 1.14e-01 1.18e-01   ph/cm2/s
 
Fluence   Cutoff-PL 9.85e-09 2.21e-08 2.59e-09 1.46e-12 3.46e-08 3.46e-08   erg/cm2
              Error 4.76e-09 7.39e-09 4.06e-09 9.53e-11 1.08e-08 1.08e-08   erg/cm2
Peak flux Cutoff-PL 1.48e-01 2.01e-01 1.38e-02 4.06e-06 3.63e-01 3.62e-01   ph/cm2/s
              Error 7.49e-02 6.34e-02 2.03e-02 2.61e-04 1.06e-01 1.06e-01   ph/cm2/s
 
Fluence        Band 9.72e-09 2.19e-08 3.82e-09 2.45e-11 3.56e-08 3.56e-08   erg/cm2
              Error 4.38e-09 7.07e-09 -------- 8.43e-10 -------- 1.05e-08   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    2.511    0.588    -      -           1.58e-03 8.37e-04   91.350 57
CPL  -5.409   -0.514      31.4    3.9      2.47e+02 3.01e+05   77.120 56
 
The chi2 of BB fit is 78.99 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    2.511    0.588    -      -           1.58e-03 8.37e-04   91.350 57
CPL  -5.409   -0.514      31.4    3.9      2.47e+02 3.01e+05   77.120 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    2.048    0.000    2.048
T90     2.048    0.000    2.048
T50     2.048    0.000    2.048
Peak    2.048   -0.000    2.048
  • 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
       41.1876 +15.3392 0.0398   18.8 -171.6       0.0877     4.9  TRIG_00797070       
    ------------------------------------------
     
    Foreground time interval of the image:
      0.000   2.048 (delta_t =   2.048 [sec])
    Background time interval of the image:
    -239.312 -13.312 (delta_t = 226.000 [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
    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 2.048000
    

    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 2.048000
    

    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 2.048000
    

    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    0.000 sec. to    2.048 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.51126     ( -0.51727   0.65923 )
    Norm@50keV  : 1.58131E-03    ( -0.000804861   0.000869874 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          91.35 using 59 PHA bins.
    # Reduced chi-squared =          1.603 for     57 degrees of freedom 
    # Null hypothesis probability =   2.615326e-03
     
    Photon flux (15-150 keV)    in 2.048 sec: 0.312945 ( -0.113775  0.113773 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.24336e-08 ( -1.32417e-08  1.48125e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    0.000 sec. to    2.048 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: -5.40866     ( 6.309   5.28132 )
    Epeak [keV] : 31.3600      ( -4.70216 3.18707 )
    Norm@50keV  : 247.365    ( -242.413   601259 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          77.12 using 59 PHA bins.
    # Reduced chi-squared =          1.377 for     56 degrees of freedom 
    # Null hypothesis probability =   3.216055e-02
     
    Photon flux (15-150 keV)    in 2.048 sec: 0.362732 ( -0.105548  0.107241 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.45711e-08 ( -1.06078e-08  1.09457e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from    0.000 sec. to    2.048 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 4.83598   ( -3.77481   -4.83598 )
    beta        : -9.98394    ( 9.98394   19.9452 )
    Epeak [keV] : 31.6844      ( -5.22453 5.50011 )
    Norm@50keV   : 97.5244    ( -27.1118   321.639 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          77.17 using 59 PHA bins.
    # Reduced chi-squared =          1.403 for     55 degrees of freedom 
    # Null hypothesis probability =   2.596256e-02
     
    Photon flux (15-150 keV)    in 2.048 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.56483e-08 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 7.94812  (-1.53924  1.79064)
    R^2/D10^2   : 0.485323  (-0.282709   0.659779)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          78.99 using 59 PHA bins.
    # Reduced chi-squared =          1.386 for     57 degrees of freedom 
    # Null hypothesis probability =   2.855482e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.130e-08   6.844e-09
    25- 50  1.955e-08   1.211e-08
    50-150  5.025e-09   3.779e-09
    15-150  3.588e-08   2.177e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 29.5418       (-11.508      22.1018)
    Norm        : 2.89638       (-1.23161     1.93804)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          86.13 using 59 PHA bins.
    # Reduced chi-squared =          1.511 for     57 degrees of freedom 
    # Null hypothesis probability =   7.617557e-03
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.198e-08   6.722e-09
    25- 50  1.357e-08   8.512e-09
    50-150  7.282e-09   6.497e-09
    15-150  3.283e-08   2.109e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 7.94350        (-7.94107      -7.94107)
    R1^2/D10^2  : 0.145006        (-0.145799      -0.145799)
    kT2 [keV]   : 7.95151        (-7.94207      -7.94207)
    R2^2/D10^2  : 0.339999    (-0.340968   -0.340968)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          78.99 using 59 PHA bins.
    # Reduced chi-squared =          1.436 for     55 degrees of freedom 
    # Null hypothesis probability =   1.869339e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.130e-08   4.425e-01
    25- 50  1.955e-08   3.280e+00
    50-150  5.027e-09   8.442e+01
    15-150  3.587e-08   7.994e+01
    

    Peak spectrum fit

    Power-law model
    Time interval is from    0.000 sec. to    2.048 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.51126     ( -0.51727   0.65923 )
    Norm@50keV  : 1.58131E-03    ( -0.000804861   0.000869874 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          91.35 using 59 PHA bins.
    # Reduced chi-squared =          1.603 for     57 degrees of freedom 
    # Null hypothesis probability =   2.615326e-03
     
    Photon flux (15-150 keV)    in 2.048 sec: 0.312945 ( -0.113775  0.113773 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.24336e-08 ( -1.32417e-08  1.48125e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    0.000 sec. to    2.048 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: -5.40866     ( 6.309   5.28132 )
    Epeak [keV] : 31.3600      ( -4.70216 3.18707 )
    Norm@50keV  : 247.365    ( -242.413   601259 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          77.12 using 59 PHA bins.
    # Reduced chi-squared =          1.377 for     56 degrees of freedom 
    # Null hypothesis probability =   3.216055e-02
     
    Photon flux (15-150 keV)    in 2.048 sec: 0.362732 ( -0.105548  0.107241 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.45711e-08 ( -1.06078e-08  1.09457e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from    0.000 sec. to    2.048 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 4.83598   ( -3.77481   -4.83598 )
    beta        : -9.98394    ( 9.98394   19.9452 )
    Epeak [keV] : 31.6844      ( -5.22453 5.50011 )
    Norm@50keV   : 97.5244    ( -27.1118   321.639 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          77.17 using 59 PHA bins.
    # Reduced chi-squared =          1.403 for     55 degrees of freedom 
    # Null hypothesis probability =   2.596256e-02
     
    Photon flux (15-150 keV)    in 2.048 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.56483e-08 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 7.94812  (-1.53924  1.79064)
    R^2/D10^2   : 0.485323  (-0.282709   0.659779)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          78.99 using 59 PHA bins.
    # Reduced chi-squared =          1.386 for     57 degrees of freedom 
    # Null hypothesis probability =   2.855482e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.130e-08   6.390e-09
    25- 50  1.955e-08   1.255e-08
    50-150  5.025e-09   3.858e-09
    15-150  3.588e-08   2.115e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 29.5418       (-11.508      22.1018)
    Norm        : 2.89638       (-1.23161     1.93804)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          86.13 using 59 PHA bins.
    # Reduced chi-squared =          1.511 for     57 degrees of freedom 
    # Null hypothesis probability =   7.617557e-03
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.198e-08   7.188e-09
    25- 50  1.357e-08   8.156e-09
    50-150  7.282e-09   5.885e-09
    15-150  3.283e-08   1.908e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 7.94350        (-7.94107      -7.94107)
    R1^2/D10^2  : 0.145006        (-0.145799      -0.145799)
    kT2 [keV]   : 7.95151        (-7.94207      -7.94207)
    R2^2/D10^2  : 0.339999    (-0.340968   -0.340968)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          78.99 using 59 PHA bins.
    # Reduced chi-squared =          1.436 for     55 degrees of freedom 
    # Null hypothesis probability =   1.869339e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.130e-08   3.795e-01
    25- 50  1.955e-08   3.506e+00
    50-150  5.027e-09   7.738e+01
    15-150  3.587e-08   8.170e+01
    

    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: 2.51126     ( -0.51727   0.65923 )
    Norm@50keV  : 1.58131E-03    ( -0.000804861   0.000869874 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          91.35 using 59 PHA bins.
    # Reduced chi-squared =          1.603 for     57 degrees of freedom 
    # Null hypothesis probability =   2.615326e-03
     
    Photon flux (15-150 keV)    in 2.048 sec: 0.312945 ( -0.113775  0.113773 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.24336e-08 ( -1.32417e-08  1.48125e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: -5.40866     ( 6.309   5.28132 )
    Epeak [keV] : 31.3600      ( -4.70216 3.18707 )
    Norm@50keV  : 247.365    ( -242.413   601259 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          77.12 using 59 PHA bins.
    # Reduced chi-squared =          1.377 for     56 degrees of freedom 
    # Null hypothesis probability =   3.216055e-02
     
    Photon flux (15-150 keV)    in 2.048 sec: 0.362732 ( -0.105548  0.107241 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.45711e-08 ( -1.06078e-08  1.09457e-08 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 4.83598   ( -3.77481   -4.83598 )
    beta        : -9.98394    ( 9.98394   19.9452 )
    Epeak [keV] : 31.6844      ( -5.22453 5.50011 )
    Norm@50keV   : 97.5244    ( -27.1118   321.639 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          77.17 using 59 PHA bins.
    # Reduced chi-squared =          1.403 for     55 degrees of freedom 
    # Null hypothesis probability =   2.596256e-02
     
    Photon flux (15-150 keV)    in 2.048 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.56483e-08 ( 0  0 ) ergs/cm2
     
    

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

    S(25-50 keV)  = 1.08e-08
    S(50-100 keV) = 7.55e-09
    

    T90 vs. Hardness ratio plot

    T90                                   = 2.04800003767014 sec.
    Hardness ratio (energy fluence ratio) = 0.699074
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.48034
    Count Ratio (50-100 keV) / (15-25 keV) = -0.388903
    

    Mask shadow pattern

    IMX = -3.375656740044223E-01, IMY = 5.003069006801716E-02
    

    TIME vs. PHA plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 2.048000
    

    TIME vs. DetID plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 2.048000
    

    100 us light curve (15-350 keV)

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 2.048000
    

    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:
    -239.312000 -13.312000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.6681  22.0415    0.9  36.6   97.9  10.1683  12.4    2.5	Crab                          
     40.9301  61.4369    0.2  27.5   -4.1  19.6268  58.5 ------	UNKNOWN                       
     30.9108  11.8438    2.4  25.2 -148.8   1.6220   4.9 ------	UNKNOWN                       
    305.9175  75.1635    2.6  59.4  -17.8   9.0524   4.4 ------	UNKNOWN                       
     20.7180 -18.7829    2.6  57.3 -154.0  11.1162   4.5 ------	UNKNOWN                       
      9.1581   3.7156    3.0  44.5 -125.8   4.1368   3.9  592.6	UNKNOWN                       
    

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

    Time interval of the image:
    0.000000 2.048000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.4671  22.0311    7.9  36.4   98.1   0.0661   1.5    9.3	Crab                          
    107.7850  55.6575    2.1  48.0   42.2   0.4051   5.6 ------	UNKNOWN                       
     42.9107  41.0935    1.9   7.2   -8.6   0.1106   6.1 ------	UNKNOWN                       
    331.1804  85.2687    1.7  54.8   -6.2   0.3645   6.9 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    82.188600 374.188000
    375.688000 380.978000
    384.688000 385.078000
    386.688000 387.058000
    388.688000 394.728000
    397.688000 405.798000
    406.688000 815.388620
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     40.9485  61.4421    0.3  46.1   18.2  54.2496  39.1 ------	UNKNOWN                       
     66.1643 -35.5074    3.2  56.1  173.9  12.1512   3.6 ------	UNKNOWN                       
     15.0969 -21.0373    3.1  44.5 -125.8   9.0368   3.7 ------	UNKNOWN                       
      7.1413  -5.8070    4.7  39.8 -101.2   7.9559   2.5  551.7	UNKNOWN                       
     14.9096 -23.7139    3.8  46.7 -127.8  10.5171   3.0 ------	UNKNOWN                       
    
    Plot creation:
    Fri Dec 15 09:30:02 EST 2017