batgrbproduct analysis for trigger=844015

batgrbproduct Analysis for Trigger=844015

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Aug  6 18:56:00 EDT 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger844015
======================================================================

  Trigger: 00844015      Segment: 000

  BAT Trigger Time: 551464937.536   [s; MET]
      Trigger Stop: 551464938.56   [s; MET]
               UTC: 2018-06-23T16:41:56.383500    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 214.511433345221   Dec: -60.2943173268399  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.68
     Image Trigger?:     NO
     Rate S/N Ratio:     21.6794833886788  [ if not an image trigger ]
     Image S/N Ratio:    7.68

  Flight Position:   [ source = BAT ]
    RA: 214.511433345221   Dec: -60.2943173268399  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 214.528304880577   Dec: -60.2682278847358  [deg; J2000]  
        { 14h 18m 06.8s , -60d 16' 05.6" }
         +/- 0.869028475349914 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.252421402495833 [arcmin] (formal 1-sigma fit error)
    SNR: 37.1717198594497
 
  Angular difference between Flight and Ground position is 1.643841 arcmin
 
  Partial Coding Fraction: 0.6328125    [ including projection effects ]

  Duration
     T90: 114.879999995232 +/- 6.81986998340227
        Measured from: -37.1720000505447
                   to: 77.7079999446869     [s; relative to TRIGTIME]
     T50: 57.9679999351501 +/- 1.19814527588882
        Measured from: 4.67599999904633
                   to: 62.6439999341965     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 59.1080000400543     
                   to: 60.1080000400543     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -61.8200000524521     
                   to: 114.067999958992     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     4.807608   6.713509   5.368042   1.519563
           0.101476   0.102133   0.088507   0.071203 [error]
 Peak      0.173210   0.243054   0.220925   0.070395
           0.008414   0.009447   0.009098   0.006202 [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 1.44e-06 2.74e-06 4.05e-06 1.28e-05 1.15e-05 2.09e-05   erg/cm2
              Error 6.43e-08 6.96e-08 9.58e-08 7.26e-07 2.38e-07 7.59e-07   erg/cm2
Peak flux Power-law 1.53e+00 1.73e+00 1.40e+00 1.89e+00 5.35e+00 6.55e+00   ph/cm2/s
              Error 1.24e-01 8.40e-02 7.18e-02 2.07e-01 2.33e-01 2.90e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.44e-06 2.76e-06 4.06e-06 1.24e-05 1.14e-05 2.04e-05   erg/cm2
              Error 7.42e-08 7.13e-08 1.12e-07 1.35e-06 2.79e-07 1.33e-06   erg/cm2
Peak flux Cutoff-PL 1.26e+00 8.87e-01 4.32e-01 3.60e-01 2.73e+00 2.93e+00   ph/cm2/s
              Error 1.47e-01 1.02e-01 5.75e-02 6.46e-02 2.78e-01 3.53e-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    1.442    0.040    -      -           6.79e-03 1.38e-04   65.030 57
CPL   1.430    0.098    2581.2    0.0      6.88e-03 6.83e-04   64.980 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.305    0.076    -      -           4.48e-02 1.90e-03   51.180 57
CPL   1.224    0.205     525.6    0.0      4.89e-02 1.31e-02   50.930 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: 87.168000 sec.
T50 in the 50-300 keV band: 49.792000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  175.888  -61.820  114.068
T90   114.880  -37.172   77.708
T50    57.968    4.676   62.644
Peak    1.000   59.108   60.108
  • Click here for the BAT GCN circular template
  • Special notes of this burst
  • Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minute to calcaulte

    Image

    Pre-slew 15.0-350.0 keV image (Event data)

    #   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
      214.5283   -60.2682   0.0052    23.4516   -74.7558         4.6644762     37.172 TRIG_00844015                 
     
    Foreground time interval of the image:
    -35.635  16.165 (delta_t =  51.800 [sec])
    Background time interval of the image:
    

    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)

    Quad-rate summed light curves (from T0-300s to T0+1000s)

    Spectral Evolution

    Spectra

    Notes:

    Time averaged spectrum fit using the average DRM

    Power-law model
    Time interval is from  -61.820 sec. to  114.068 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.44245     ( -0.0399052   0.0398378 )
    Norm@50keV  : 6.78980E-03    ( -0.000138126   0.000138061 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          65.03 using 59 PHA bins.
    # Reduced chi-squared =          1.141 for     57 degrees of freedom 
    # Null hypothesis probability =   2.174588e-01
     
    Photon flux (15-150 keV)    in 175.9 sec: 0.835212 ( -0.019635  0.019746 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.14463e-05 ( -2.38381e-07  2.386e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from  -61.820 sec. to  114.068 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.42970     ( -0.141683   0.0533473 )
    Epeak [keV] : 2581.24      ( -955.673 -955.673 )
    Norm@50keV  : 6.87697E-03    ( -0.00018438   0.0011823 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          64.98 using 59 PHA bins.
    # Reduced chi-squared =          1.160 for     56 degrees of freedom 
    # Null hypothesis probability =   1.922547e-01
     
    Photon flux (15-150 keV)    in 175.9 sec: 0.834059 ( -0.022275  0.020476 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.14318e-05 ( -2.86937e-07  2.71674e-07 ) ergs/cm2
     
    
    Band function
    Time interval is from  -61.820 sec. to  114.068 sec.
     
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       :    (     )
    beta        :     (     )
    Epeak [keV] :       (   )
    Norm@50keV   :     (     )
    ------------------------------------------------------------
     
    Photon flux (15-150 keV)    in  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]    : 18.3643  (  )
    R^2/D10^2   : 4.53627E-02  (   )
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         584.70 using 59 PHA bins.
    # Reduced chi-squared =         10.258 for     57 degrees of freedom 
    # Null hypothesis probability =   1.351051e-88
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.353e-07   2.304e-08
    25- 50  2.512e-06   7.740e-08
    50-150  6.181e-06   2.164e-07
    15-150  9.229e-06   2.172e-07
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 199.363       (      )
    Norm        : 3.48243       (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         115.85 using 59 PHA bins.
    # Reduced chi-squared =         2.0324 for     57 degrees of freedom 
    # Null hypothesis probability =   6.796451e-06
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.525e-06   3.641e-08
    25- 50  2.934e-06   6.772e-08
    50-150  6.435e-06   1.557e-07
    15-150  1.089e-05   2.542e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 7.71772        (-0.603396      0.644532)
    R1^2/D10^2  : 0.593362        (-0.142888      0.199819)
    kT2 [keV]   : 30.9104        (-2.32604      2.91643)
    R2^2/D10^2  : 6.37834E-03    (-0.00168407   0.00200479)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          74.93 using 59 PHA bins.
    # Reduced chi-squared =          1.362 for     55 degrees of freedom 
    # Null hypothesis probability =   3.822081e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.258e-06   8.839e-08
    25- 50  2.824e-06   1.117e-07
    50-150  7.271e-06   3.342e-07
    15-150  1.135e-05   3.958e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from   59.108 sec. to   60.108 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.30451     ( -0.0763573   0.0764594 )
    Norm@50keV  : 4.48258E-02    ( -0.00190236   0.00190136 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          51.18 using 59 PHA bins.
    # Reduced chi-squared =         0.8978 for     57 degrees of freedom 
    # Null hypothesis probability =   6.922703e-01
     
    Photon flux (15-150 keV)    in 1 sec: 5.35237 ( -0.23333  0.23365 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 4.42527e-07 ( -2.10441e-08  2.11227e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   59.108 sec. to   60.108 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.22433     ( -0.291573   0.117653 )
    Epeak [keV] : 525.588      ( -525.835 -525.835 )
    Norm@50keV  : 4.89027E-02    ( -0.0086197   0.017565 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          50.93 using 59 PHA bins.
    # Reduced chi-squared =         0.9095 for     56 degrees of freedom 
    # Null hypothesis probability =   6.665418e-01
     
    Photon flux (15-150 keV)    in 1 sec: 2.72611 ( -0.31749  0.23766 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 4.40372e-07 ( -2.24165e-08  2.21262e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   59.108 sec. to   60.108 sec.
     
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       :    (     )
    beta        :     (     )
    Epeak [keV] :       (   )
    Norm@50keV   :     (     )
    ------------------------------------------------------------
     
    Photon flux (15-150 keV)    in  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]    : 18.0595  (  )
    R^2/D10^2   : 0.331873  (   )
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         181.07 using 59 PHA bins.
    # Reduced chi-squared =         3.1767 for     57 degrees of freedom 
    # Null hypothesis probability =   7.739126e-15
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.165e-08   1.920e-09
    25- 50  1.004e-07   6.190e-09
    50-150  2.378e-07   1.965e-08
    15-150  3.598e-07   1.955e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 200.000       (-8.19394      -200)
    Norm        : 22.1193       (-0.945291     0.945291)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          83.00 using 59 PHA bins.
    # Reduced chi-squared =          1.456 for     57 degrees of freedom 
    # Null hypothesis probability =   1.388669e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.509e-08   2.650e-09
    25- 50  1.060e-07   4.850e-09
    50-150  2.324e-07   1.165e-08
    15-150  3.935e-07   1.940e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 6.90846        (-1.07218      1.28263)
    R1^2/D10^2  : 5.04667        (-2.16141      4.15119)
    kT2 [keV]   : 29.0990        (-3.60037      5.45148)
    R2^2/D10^2  : 5.78320E-02    (-0.0252897   0.0334422)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          53.69 using 59 PHA bins.
    # Reduced chi-squared =         0.9762 for     55 degrees of freedom 
    # Null hypothesis probability =   5.247296e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.597e-08   8.695e-09
    25- 50  9.847e-08   1.059e-08
    50-150  2.956e-07   3.735e-08
    15-150  4.400e-07   4.890e-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: 1.36247     ( -0.0725863   0.0723045 )
    Norm@50keV  : 5.80253E-03    ( -0.00022707   0.000227069 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          76.88 using 59 PHA bins.
    # Reduced chi-squared =          1.349 for     57 degrees of freedom 
    # Null hypothesis probability =   4.073379e-02
     
    Photon flux (15-150 keV)    in 51.8 sec: 0.700855 ( -0.0293517  0.0294194 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.9275e-06 ( -1.23707e-07  1.24027e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.26059     ( -0.280788   0.144956 )
    Epeak [keV] : 392.529      ( -392.536 -392.536 )
    Norm@50keV  : 6.47825E-03    ( -0.000860176   0.00221972 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          76.46 using 59 PHA bins.
    # Reduced chi-squared =          1.365 for     56 degrees of freedom 
    # Null hypothesis probability =   3.596610e-02
     
    Photon flux (15-150 keV)    in 51.8 sec: 0.696578 ( -0.031241  0.031271 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.90872e-06 ( -1.35234e-07  1.34136e-07 ) ergs/cm2
     
    
    Band function
     
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       :    (     )
    beta        :     (     )
    Epeak [keV] :       (   )
    Norm@50keV   :     (     )
    ------------------------------------------------------------
     
    Photon flux (15-150 keV)    in  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)  = 2.74e-06
    S(50-100 keV) = 4.05e-06
    

    T90 vs. Hardness ratio plot

    T90                                   = 114.879999995232 sec.
    Hardness ratio (energy fluence ratio) = 1.4781
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.39643
    Count Ratio (50-100 keV) / (15-25 keV) = 1.11657
    

    Mask shadow pattern

    IMX = 1.140624047034001E-01, IMY = 4.185433300692041E-01
    

    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:
     
    

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

    Time interval of the image:
    -35.635400 16.164600
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    187.0051 -62.8614    0.0  36.7  -76.7   0.7740   3.3   11.0	GX 301-2                      
    244.9679 -15.6537    0.7  31.8   54.9   2.6531  16.1    1.0	Sco X-1                       
    255.8956 -37.9764    4.7  10.8   94.3  -0.2520  -2.4    9.0	4U 1700-377                   
    256.6592 -36.3749    6.0  12.5   93.4   0.2114   1.9   11.2	GX 349+2                      
    262.8133 -24.8395    0.0  25.2   93.2   0.2488   1.7   12.1	GX 1+4                        
    264.7577 -44.6085   49.4  11.6  143.8   0.0218   0.2    9.5	4U 1735-44                    
    270.2990 -25.1008    8.3  28.2  106.9   0.2152   1.4    1.5	GX 5-1                        
    270.2851 -25.6368    4.3  27.7  107.4   0.4042   2.8    6.4	GRS 1758-258                  
    274.1447 -13.9624    4.8  39.6  102.5  -0.8999  -2.4    9.2	GX 17+2                       
    276.0411 -30.2693   38.9  27.2  122.4   0.0399   0.3    8.4	H1820-303                     
    284.8911 -24.8681   11.3  36.5  126.2  -0.2335  -1.0    8.5	HT1900.1-2455                 
    262.9686 -33.8117    4.2  17.4  105.5   0.3219   2.7    1.7	GX 354-0                      
    286.1046 -18.2276    2.8  42.3  120.8   1.6141   4.1 ------	UNKNOWN                       
    231.4273  -0.1845    2.7  49.4   38.6   2.0516   4.3 ------	UNKNOWN                       
    280.6358 -64.2066    2.3  24.3 -153.1   0.5237   5.1 ------	UNKNOWN                       
    338.6738 -57.6440    2.4  51.7 -161.7   1.3813   4.9 ------	UNKNOWN                       
    214.5283 -60.2682    0.3  23.5  -74.8   4.6645  37.2 ------	UNKNOWN                       
    177.7895 -53.2214    3.3  43.7  -63.9   1.4737   3.5 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    66.164600 962.534800
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    170.3406 -60.5544    2.2  21.4  -93.6   4.1442   5.3    4.2	Cen X-3                       
    187.0236 -62.6468    0.0  13.3  -95.7   0.5987   0.9   12.5	GX 301-2                      
    256.2339 -37.8125    0.0  34.4   84.9  -1.8183  -1.2   11.9	4U 1700-377                   
    256.3032 -36.3583    8.7  35.6   83.5  -2.2285  -1.3    7.5	GX 349+2                      
    264.7072 -44.5316    4.2  33.3  101.4   3.6038   2.7    5.1	4U 1735-44                    
    222.3826  -7.9096    3.0  52.7   26.3  11.8445   3.9 ------	UNKNOWN                       
    214.5855 -60.2512    2.1   0.0   48.8   3.5104   5.5 ------	UNKNOWN                       
    215.4057 -62.7291    1.5   2.5 -172.3   4.9156   7.7 ------	UNKNOWN                       
     27.4869 -73.7675    2.9  45.9 -166.2   4.9650   3.9 ------	UNKNOWN                       
    191.5644 -11.0009    4.3  52.1  -12.5   4.3698   2.7 ------	UNKNOWN                       
    180.5637 -22.0299    3.9  45.0  -30.6   3.4727   3.0 ------	UNKNOWN                       
    121.9862 -71.6881    2.9  35.2 -130.4   4.5538   4.1 ------	UNKNOWN                       
     46.2485 -62.9454    3.7  56.5 -157.1  14.0326   3.1 ------	UNKNOWN                       
    171.8092 -19.5596    4.4  50.7  -39.3   8.4567   2.7 ------	UNKNOWN                       
     98.9227 -62.2763    3.9  48.0 -129.1  12.9514   3.0 ------	UNKNOWN                       
     96.7960 -62.4247    3.5  48.5 -130.3  14.3692   3.3 ------	UNKNOWN                       
     91.6245 -62.6026    3.3  49.7 -133.0  15.7278   3.5 ------	UNKNOWN                       
    
    Plot creation:
    Mon Aug  6 22:42:14 EDT 2018