batgrbproduct Analysis for Trigger=544027

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Jan 12 22:29:40 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger544027
======================================================================

  Trigger: 00544027      Segment: 000

  BAT Trigger Time: 378241793.92   [s; MET]
      Trigger Stop: 378241794.944   [s; MET]
               UTC: 2012-12-26T19:09:43.890520    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 168.657836545913   Dec: -30.4144824746842  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.23
     Image Trigger?:     NO
     Rate S/N Ratio:     15.6843871413581  [ if not an image trigger ]
     Image S/N Ratio:    7.23

  Flight Position:   [ source = BAT ]
    RA: 168.657836545913   Dec: -30.4144824746842  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 168.619872955185   Dec: -30.4129687748913  [deg; J2000]  
        { 11h 14m 28.8s , -30d 24' 46.7" }
         +/- 1.96270273044716 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.13694808261099 [arcmin] (formal 1-sigma fit error)
    SNR: 11.6079297327899
 
  Angular difference between Flight and Ground position is 1.966469 arcmin
 
  Partial Coding Fraction: 0.359375    [ including projection effects ]

  Duration
     T90: 1.01199996471405 +/- 0.203214155154292
        Measured from: -0.304000020027161
                   to: 0.70799994468689     [s; relative to TRIGTIME]
     T50: 0.507999897003174 +/- 0.139713955893594
        Measured from: 0.00400000810623169
                   to: 0.511999905109406     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.208000004291534     
                   to: 0.791999995708466     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.364000022411346     
                   to: 0.796000003814697     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.073028   0.065378   0.060557   0.038983
           0.010370   0.011505   0.010324   0.008311 [error]
 Peak      0.066487   0.057161   0.053113   0.039717
           0.009728   0.010711   0.009760   0.007704 [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 1.92e-08 3.52e-08 4.96e-08 1.47e-07 1.42e-07 2.51e-07   erg/cm2
              Error 5.54e-09 6.04e-09 1.01e-08 6.68e-08 2.44e-08 7.33e-08   erg/cm2
Peak flux Power-law 5.37e-01 5.51e-01 3.98e-01 4.60e-01 1.67e+00 1.95e+00   ph/cm2/s
              Error 1.68e-01 1.03e-01 8.08e-02 2.01e-01 2.89e-01 3.22e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.93e-08 3.53e-08 4.95e-08 1.44e-07 1.42e-07 2.49e-07   erg/cm2
              Error 5.51e-09 5.86e-09 1.01e-08 9.07e-08 2.40e-08 7.90e-08   erg/cm2
Peak flux Cutoff-PL 5.61e-01 5.58e-01 3.90e-01 4.31e-01 1.68e+00 1.95e+00   ph/cm2/s
              Error 1.69e-01 1.04e-01 8.21e-02 2.27e-01 2.90e-01 3.25e-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    1.504    0.289    -      -           1.29e-02 2.05e-03   67.390 57
CPL   1.519    0.292    9999.4    0.0      1.28e-02 5.38e-03   67.420 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.469    0.306    -      -           1.35e-02 2.23e-03   56.840 57
CPL   1.483    0.308    9999.3    0.0      1.35e-02 5.89e-03   56.860 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: 1.280000 sec.
T50 in the 50-300 keV band: 0.640000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    1.160   -0.364    0.796
T90     1.012   -0.304    0.708
T50     0.508    0.004    0.512
Peak    1.000   -0.208    0.792
  • Click here for the BAT GCN circular template
  • Special notes of this burst

    Image

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

    #   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
      168.6199   -30.4130   0.0164    47.4554   -14.6502         0.2510439     11.608 TRIG_00544027                 
     
    Foreground time interval of the image:
     -0.364   0.796 (delta_t =   1.160 [sec])
    Background time interval of the image:
    -239.920  -0.364 (delta_t = 239.556 [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)

    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   -0.364 sec. to    0.796 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.50354     ( -0.289473   0.289525 )
    Norm@50keV  : 1.29155E-02    ( -0.00205451   0.0020439 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          67.39 using 59 PHA bins.
    # Reduced chi-squared =          1.182 for     57 degrees of freedom 
    # Null hypothesis probability =   1.633144e-01
     
    Photon flux (15-150 keV)    in 1.16 sec: 1.61390 ( -0.2662  0.267313 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.42044e-07 ( -2.43221e-08  2.44569e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   -0.364 sec. to    0.796 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.51920     ( -0.309131   0.275563 )
    Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
    Norm@50keV  : 1.28474E-02    ( -0.00204749   0.00871891 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          67.42 using 59 PHA bins.
    # Reduced chi-squared =          1.204 for     56 degrees of freedom 
    # Null hypothesis probability =   1.411831e-01
     
    Photon flux (15-150 keV)    in 1.16 sec: 1.62552 ( -0.28163  0.25768 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.41836e-07 ( -2.41002e-08  2.38276e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   -0.364 sec. to    0.796 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 4.87822   ( -4.87822   -4.87822 )
    beta        : -1.59753    ( -0.356754   0.324265 )
    Epeak [keV] : 24.6754      ( -24.6754 6.61169 )
    Norm@50keV   : 1224.27    ( -190.893   7.6226e+06 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          66.32 using 59 PHA bins.
    # Reduced chi-squared =          1.206 for     55 degrees of freedom 
    # Null hypothesis probability =   1.409610e-01
     
    Photon flux (15-150 keV)    in 1.16 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]    : 14.7933  (-4.58445  7.35734)
    R^2/D10^2   : 0.179935  (-0.174871   0.490425)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          90.95 using 59 PHA bins.
    # Reduced chi-squared =          1.596 for     57 degrees of freedom 
    # Null hypothesis probability =   2.850851e-03
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  9.584e-09   3.452e-09
    25- 50  3.759e-08   1.105e-08
    50-150  5.564e-08   1.976e-08
    15-150  1.028e-07   2.611e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 199.362       (-84.9278      -199.363)
    Norm        : 6.59700       (-1.04125     1.04358)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          69.21 using 59 PHA bins.
    # Reduced chi-squared =          1.214 for     57 degrees of freedom 
    # Null hypothesis probability =   1.288490e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.906e-08   1.086e-08
    25- 50  3.666e-08   2.042e-08
    50-150  8.039e-08   4.520e-08
    15-150  1.361e-07   7.673e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 6.82278        (-1.57586      2.06355)
    R1^2/D10^2  : 2.47624        (-1.57203      4.53307)
    kT2 [keV]   : 49.0024        (-19.6593      -49.0024)
    R2^2/D10^2  : 3.40127E-03    (-0.00314705   0.0115086)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          61.67 using 59 PHA bins.
    # Reduced chi-squared =          1.121 for     55 degrees of freedom 
    # Null hypothesis probability =   2.499490e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.195e-08   1.210e-08
    25- 50  3.478e-08   1.878e-08
    50-150  9.464e-08   5.265e-08
    15-150  1.514e-07   7.023e-08
    

    Peak spectrum fit

    Power-law model
    Time interval is from   -0.208 sec. to    0.792 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.46916     ( -0.306643   0.305271 )
    Norm@50keV  : 1.34529E-02    ( -0.00223013   0.00222174 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          56.84 using 59 PHA bins.
    # Reduced chi-squared =         0.9973 for     57 degrees of freedom 
    # Null hypothesis probability =   4.809236e-01
     
    Photon flux (15-150 keV)    in 1 sec: 1.66591 ( -0.288117  0.289472 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.2829e-07 ( -2.29968e-08  2.31268e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   -0.208 sec. to    0.792 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.48332     ( -0.324387   0.292173 )
    Epeak [keV] : 9999.34      ( -9999.36 -9999.36 )
    Norm@50keV  : 1.34731E-02    ( -0.00222688   0.00954666 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          56.86 using 59 PHA bins.
    # Reduced chi-squared =          1.015 for     56 degrees of freedom 
    # Null hypothesis probability =   4.426384e-01
     
    Photon flux (15-150 keV)    in 1 sec: 1.67873 ( -0.30003  0.27914 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.28045e-07 ( -2.2633e-08  2.2399e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   -0.208 sec. to    0.792 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 4.91640   ( -4.9164   -4.9164 )
    beta        : -1.55643    ( -0.386112   0.339685 )
    Epeak [keV] : 24.6883      ( -24.6883 6.90967 )
    Norm@50keV   : 1313.49    ( -214.535   7.766e+06 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          55.95 using 59 PHA bins.
    # Reduced chi-squared =          1.017 for     55 degrees of freedom 
    # Null hypothesis probability =   4.390547e-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]    : 15.6588  (-5.00781  8.05546)
    R^2/D10^2   : 0.153197  (-0.149217   0.439862)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          78.21 using 59 PHA bins.
    # Reduced chi-squared =          1.372 for     57 degrees of freedom 
    # Null hypothesis probability =   3.262445e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  7.803e-09   2.975e-09
    25- 50  3.222e-08   9.270e-09
    50-150  5.476e-08   1.925e-08
    15-150  9.479e-08   2.643e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 199.363       (-83.1004      -199.363)
    Norm        : 6.84103       (-1.13291     1.13291)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          58.71 using 59 PHA bins.
    # Reduced chi-squared =          1.030 for     57 degrees of freedom 
    # Null hypothesis probability =   4.124824e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.704e-08   1.013e-08
    25- 50  3.277e-08   1.844e-08
    50-150  7.187e-08   4.073e-08
    15-150  1.217e-07   6.880e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 6.87133        (-1.70377      2.28592)
    R1^2/D10^2  : 2.44801        (-1.61896      3.04166)
    kT2 [keV]   : 50.1637        (-20.8392      -50.1619)
    R2^2/D10^2  : 3.41490E-03    (-0.00318612   0.0121837)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          51.80 using 59 PHA bins.
    # Reduced chi-squared =         0.9419 for     55 degrees of freedom 
    # Null hypothesis probability =   5.975477e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.914e-08   1.083e-08
    25- 50  3.082e-08   1.610e-08
    50-150  8.669e-08   4.795e-08
    15-150  1.366e-07   6.793e-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: 1.50354     ( -0.289473   0.289525 )
    Norm@50keV  : 1.29155E-02    ( -0.00205451   0.0020439 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          67.39 using 59 PHA bins.
    # Reduced chi-squared =          1.182 for     57 degrees of freedom 
    # Null hypothesis probability =   1.633144e-01
     
    Photon flux (15-150 keV)    in 1.16 sec: 1.61390 ( -0.2662  0.267313 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.42044e-07 ( -2.43221e-08  2.44569e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.51920     ( -0.309131   0.275563 )
    Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
    Norm@50keV  : 1.28474E-02    ( -0.00204749   0.00871891 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          67.42 using 59 PHA bins.
    # Reduced chi-squared =          1.204 for     56 degrees of freedom 
    # Null hypothesis probability =   1.411831e-01
     
    Photon flux (15-150 keV)    in 1.16 sec: 1.62552 ( -0.28163  0.25768 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.41836e-07 ( -2.41002e-08  2.38276e-08 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 4.87822   ( -4.87822   -4.87822 )
    beta        : -1.59753    ( -0.356754   0.324265 )
    Epeak [keV] : 24.6754      ( -24.6754 6.61169 )
    Norm@50keV   : 1224.27    ( -190.893   7.6226e+06 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          66.32 using 59 PHA bins.
    # Reduced chi-squared =          1.206 for     55 degrees of freedom 
    # Null hypothesis probability =   1.409610e-01
     
    Photon flux (15-150 keV)    in 1.16 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)  = 3.52e-08
    S(50-100 keV) = 4.96e-08
    

    T90 vs. Hardness ratio plot

    T90                                   = 1.01199996471405 sec.
    Hardness ratio (energy fluence ratio) = 1.40909
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 0.895246
    Count Ratio (50-100 keV) / (15-25 keV) = 0.82923
    

    Mask shadow pattern

    IMX = 1.054177635931437E+00, IMY = 2.755788578305471E-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:
    -239.920000 -0.364000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    124.3890   3.6443    2.8  40.4   67.0   2.5276   4.1 ------	UNKNOWN                       
    143.7577 -10.1489    4.2  33.2   28.6   0.6230   2.8 ------	UNKNOWN                       
    163.1025  42.1210    2.8  25.4  171.1   0.7106   4.1 ------	UNKNOWN                       
    216.2534  59.8671    3.3  57.4 -160.1   2.8886   3.5 ------	UNKNOWN                       
    

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

    Time interval of the image:
    -0.364000 0.796000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    125.3233  30.6914    2.5  37.3  110.5   0.1205   4.5 ------	UNKNOWN                       
    156.9944 -32.7443    2.4  49.9   -1.5   0.1185   4.7 ------	UNKNOWN                       
    168.6199 -30.4130    1.0  47.5  -14.7   0.2511  11.6 ------	UNKNOWN                       
    216.3456  62.3988    2.3  58.5 -162.8   0.2839   5.0 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    84.380590 850.680590
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.4862 -40.5738    2.3  28.6   31.6   2.8298   5.1    2.2	Vela X-1                      
    170.3884 -60.7970   18.0  30.4  -30.2   0.3180   0.6   10.7	Cen X-3                       
    186.6787 -62.7789    0.6  34.4  -43.0  10.0087  17.9    0.8	GX 301-2                      
     99.1702 -52.1340    3.5  54.2   16.7   8.3702   3.3 ------	UNKNOWN                       
    123.4099 -58.7572    3.3  41.6    5.2   2.2411   3.6 ------	UNKNOWN                       
    152.6216 -58.3417    2.1  30.0  -11.6   2.5677   5.4 ------	UNKNOWN                       
    111.7145 -74.1780    3.2  52.0  -11.6   4.1899   3.6 ------	UNKNOWN                       
    176.9814 -61.9745    2.3  32.0  -35.9   2.3622   5.0 ------	UNKNOWN                       
    220.3736 -74.2808    3.8  50.8  -44.4   6.3457   3.0 ------	UNKNOWN                       
    
    Plot creation:
    Sat May 30 17:37:58 EDT 2015