batgrbproduct Analysis for Trigger=358574

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Jan 19 14:56:29 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger358574
======================================================================

  Trigger: 00358574      Segment: 000

  BAT Trigger Time: 270485150.912   [s; MET]
      Trigger Stop: 270485155.008   [s; MET]
               UTC: 2009-07-28T14:45:45.962500    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 29.6601612956258   Dec: 41.6470928113711  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.64
     Image Trigger?:     NO
     Rate S/N Ratio:     10.9544511501033  [ if not an image trigger ]
     Image S/N Ratio:    9.64

  Flight Position:   [ source = BAT ]
    RA: 29.6601612956258   Dec: 41.6470928113711  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 29.6413409875335   Dec: 41.6359884040569  [deg; J2000]  
        { 01h 58m 33.9s , +41d 38' 09.6" }
         +/- 1.96264779750396 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.31155149352086 [arcmin] (formal 1-sigma fit error)
    SNR: 11.6083938736816
 
  Angular difference between Flight and Ground position is 1.075197 arcmin
 
  Partial Coding Fraction: 0.3789062    [ including projection effects ]

  Duration
     T90: 64 +/- 35.7770876399966
        Measured from: -15.9120000004768
                   to: 48.0879999995232     [s; relative to TRIGTIME]
     T50: 16 +/- 22.6274169979695
        Measured from: 0.0879999995231628
                   to: 16.0879999995232     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 7.58799999952316     
                   to: 8.58799999952316     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -15.9120000004768     
                   to: 64.0879999995232     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.629376   0.637135   0.420777   0.109452
           0.082473   0.084709   0.075338   0.065800 [error]
 Peak      0.009663   0.005832   0.002438   0.007397
           0.009944   0.009919   0.008997   0.007737 [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 2.25e-07 3.20e-07 3.38e-07 6.59e-07 1.09e-06 1.54e-06   erg/cm2
              Error 4.56e-08 4.35e-08 7.40e-08 2.91e-07 1.72e-07 3.67e-07   erg/cm2
Peak flux Power-law 1.49e-01 7.36e-02 2.23e-02 8.55e-03 2.50e-01 2.54e-01   ph/cm2/s
              Error 1.69e-01 8.39e-02 4.84e-02 2.58e-01 2.62e-01 2.69e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.15e-07 3.35e-07 3.42e-07 3.72e-07 1.06e-06 1.26e-06   erg/cm2
              Error 5.16e-08 5.50e-08 7.92e-08 3.68e-07 1.84e-07 4.80e-07   erg/cm2
Peak flux Cutoff-PL 1.49e-01 7.43e-02 2.17e-02 6.84e-03 2.49e-01 2.52e-01   ph/cm2/s
              Error 2.09e-01 1.02e-01 5.06e-02 -------- 2.61e-01 2.67e-01   ph/cm2/s
 
Fluence        Band 2.14e-07 3.33e-07 3.41e-07 3.81e-07 1.06e-06 1.27e-06   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    1.922    0.252    -      -           1.48e-03 2.38e-04   56.740 57
CPL   1.556    0.836      55.8   -0.0      2.34e-03 3.66e-03   56.220 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.725    0.000    -      -           1.10e-03 1.70e-03   67.920 57
CPL   1.877    0.000       4.8    0.0      4.03e-03 0.00e+00   67.940 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: 8.768000 sec.
T50 in the 50-300 keV band: 4.416000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   80.000  -15.912   64.088
T90    64.000  -15.912   48.088
T50    16.000    0.088   16.088
Peak    1.000    7.588    8.588
  • 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
       29.6413    41.6360   0.0167    46.3187   -15.2023         1.7781422     11.608 TRIG_00358574                 
     
    Foreground time interval of the image:
    -15.912  37.789 (delta_t =  53.701 [sec])
    Background time interval of the image:
    -239.912 -15.912 (delta_t = 224.000 [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 4.096000
    

    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 4.096000
    

    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 4.096000
    

    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  -15.912 sec. to   64.088 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.92237     ( -0.243484   0.259919 )
    Norm@50keV  : 1.48135E-03    ( -0.000241629   0.000234608 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          56.74 using 59 PHA bins.
    # Reduced chi-squared =         0.9955 for     57 degrees of freedom 
    # Null hypothesis probability =   4.847326e-01
     
    Photon flux (15-150 keV)    in 80 sec: 0.214637 ( -0.0295287  0.0295606 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.08986e-06 ( -1.70589e-07  1.7353e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from  -15.912 sec. to   64.088 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.55581     ( -1.03588   0.636783 )
    Epeak [keV] : 55.8001      ( -55.7478 -55.8 )
    Norm@50keV  : 2.34152E-03    ( -0.00129842   0.00601809 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          56.22 using 59 PHA bins.
    # Reduced chi-squared =          1.004 for     56 degrees of freedom 
    # Null hypothesis probability =   4.666552e-01
     
    Photon flux (15-150 keV)    in 80 sec: 0.211642 ( -0.030378  0.030339 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.0622e-06 ( -1.81928e-07  1.85216e-07 ) ergs/cm2
     
    
    Band function
    Time interval is from  -15.912 sec. to   64.088 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.55665   ( 1.70204   1.17462 )
    beta        : -10.0000    ( 10   20 )
    Epeak [keV] : 55.8178      ( -40.4608 -55.8178 )
    Norm@50keV   : 2.33856E-03    ( -0.00106187   0.0060432 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          56.22 using 59 PHA bins.
    # Reduced chi-squared =          1.022 for     55 degrees of freedom 
    # Null hypothesis probability =   4.290190e-01
     
    Photon flux (15-150 keV)    in 80 sec: 0.210981 ( 6.78902  -0.028726 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.06226e-06 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 11.6643  (-1.95521  2.29139)
    R^2/D10^2   : 5.55545E-02  (-0.0270012   0.0547143)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          71.02 using 59 PHA bins.
    # Reduced chi-squared =          1.246 for     57 degrees of freedom 
    # Null hypothesis probability =   1.002789e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.275e-07   3.994e-08
    25- 50  3.880e-07   7.640e-08
    50-150  3.113e-07   1.013e-07
    15-150  8.268e-07   1.554e-07
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 83.1246       (-29.6992      62.0203)
    Norm        : 0.992430       (-0.188609     0.246274)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          56.44 using 59 PHA bins.
    # Reduced chi-squared =         0.9902 for     57 degrees of freedom 
    # Null hypothesis probability =   4.959650e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.065e-07   3.900e-08
    25- 50  3.430e-07   5.584e-08
    50-150  4.966e-07   2.646e-07
    15-150  1.046e-06   3.091e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 4.42331        (-1.35726      2.07775)
    R1^2/D10^2  : 1.56802        (-1.23594      7.43415)
    kT2 [keV]   : 17.6519        (-4.06359      7.29248)
    R2^2/D10^2  : 9.62908E-03    (-0.0071772   0.0174499)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          54.93 using 59 PHA bins.
    # Reduced chi-squared =         0.9987 for     55 degrees of freedom 
    # Null hypothesis probability =   4.773262e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.303e-07   1.303e-07
    25- 50  3.071e-07   1.391e-07
    50-150  4.976e-07   2.926e-07
    15-150  1.035e-06   4.621e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from    7.588 sec. to    8.588 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.72465     ( -2.72465   -2.72465 )
    Norm@50keV  : 1.10113E-03    ( -0.00110113   0.00230534 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          67.92 using 59 PHA bins.
    # Reduced chi-squared =          1.192 for     57 degrees of freedom 
    # Null hypothesis probability =   1.525725e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.249818 ( -0.249818  0.273504 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.18167e-08 ( -1.18167e-08  1.96916e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    7.588 sec. to    8.588 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.87721     (     )
    Epeak [keV] : 4.75197      (   )
    Norm@50keV  : 4.02746E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          67.94 using 59 PHA bins.
    # Reduced chi-squared =          1.213 for     56 degrees of freedom 
    # Null hypothesis probability =   1.316334e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.249167 ( -0.249167  0.273644 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.16651e-08 ( -1.16651e-08  1.96522e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from    7.588 sec. to    8.588 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.91988   (     )
    beta        : -9.37166    (     )
    Epeak [keV] : 3.74286      (   )
    Norm@50keV   : 3.46752E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          67.94 using 59 PHA bins.
    # Reduced chi-squared =          1.235 for     55 degrees of freedom 
    # Null hypothesis probability =   1.129637e-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]    : 3.97162  (-3.97153  -3.97153)
    R^2/D10^2   : 6.10031  (-6.10095   -6.10095)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          68.05 using 59 PHA bins.
    # Reduced chi-squared =          1.194 for     57 degrees of freedom 
    # Null hypothesis probability =   1.501197e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.359e-09   3.607e-09
    25- 50  1.896e-09   1.661e-09
    50-150  2.207e-11   4.295e-11
    15-150  7.278e-09   5.145e-09
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 22.8080       (-22.9529      -22.9529)
    Norm        : 2.57772       (-2.55608     -2.55608)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          67.97 using 59 PHA bins.
    # Reduced chi-squared =          1.192 for     57 degrees of freedom 
    # Null hypothesis probability =   1.516145e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.433e-09   3.209e-09
    25- 50  4.273e-09   3.517e-09
    50-150  1.582e-09   2.225e-09
    15-150  1.029e-08   9.100e-09
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 3.45767        (-3.39675      -3.39675)
    R1^2/D10^2  : 9.89982        (-10.3695      -10.3695)
    kT2 [keV]   : 13.6313        (-13.4964      -13.4964)
    R2^2/D10^2  : 1.82606E-02    (-0.0188514   -0.0188514)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          67.68 using 59 PHA bins.
    # Reduced chi-squared =          1.231 for     55 degrees of freedom 
    # Null hypothesis probability =   1.170942e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.962e-09   2.607e-09
    25- 50  3.591e-09   3.223e-09
    50-150  3.142e-09   2.661e-09
    15-150  1.169e-08   9.910e-09
    

    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: 1.85004     ( -0.23398   0.247235 )
    Norm@50keV  : 2.00333E-03    ( -0.000304939   0.000297516 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.48 using 59 PHA bins.
    # Reduced chi-squared =          1.043 for     57 degrees of freedom 
    # Null hypothesis probability =   3.854573e-01
     
    Photon flux (15-150 keV)    in 53.7 sec: 0.281593 ( -0.0378859  0.0379423 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 9.8917e-07 ( -1.48789e-07  1.50924e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.46217     ( -1.02261   0.769181 )
    Epeak [keV] : 65.7158      ( -65.6482 -65.7158 )
    Norm@50keV  : 3.21774E-03    ( -0.00321774   0.00773816 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          58.89 using 59 PHA bins.
    # Reduced chi-squared =          1.052 for     56 degrees of freedom 
    # Null hypothesis probability =   3.703453e-01
     
    Photon flux (15-150 keV)    in 53.7 sec: 0.277244 ( -0.039156  0.039078 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 9.64302e-07 ( -1.58571e-07  1.60654e-07 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.46105   ( -4.44063   1.11534 )
    beta        : -10.0000    ( 10   20 )
    Epeak [keV] : 65.5962      ( -38.1981 -65.5982 )
    Norm@50keV   : 3.22258E-03    ( -0.00140016   0.00773541 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          58.89 using 59 PHA bins.
    # Reduced chi-squared =          1.071 for     55 degrees of freedom 
    # Null hypothesis probability =   3.352751e-01
     
    Photon flux (15-150 keV)    in 53.7 sec: 0.276159 ( 6.72384  -0.036652 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 9.63518e-07 ( 0  0 ) ergs/cm2
     
    

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

    S(25-50 keV)  = 3.20e-07
    S(50-100 keV) = 3.38e-07
    

    T90 vs. Hardness ratio plot

    T90                                   = 64 sec.
    Hardness ratio (energy fluence ratio) = 1.05625
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.01233
    Count Ratio (50-100 keV) / (15-25 keV) = 0.668562
    

    Mask shadow pattern

    IMX = 1.010480728020026E+00, IMY = 2.745854694665011E-01
    

    TIME vs. PHA plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 4.096000
    

    TIME vs. DetID plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 4.096000
    

    100 us light curve (15-350 keV)

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 4.096000
    

    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:
    -239.912000 -15.912000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    254.4666  35.3864    3.2  46.4  163.6   1.8631   3.6    2.7	Her X-1                       
    299.5904  35.1892    0.4  31.3  108.4  11.3838  30.0    0.7	Cyg X-1                       
    308.0421  41.0875    3.1  24.3   96.7   1.0216   3.7    8.7	Cyg X-3                       
    326.2648  38.2769    5.0  27.3   64.2   0.6346   2.3    5.1	Cyg X-2                       
    269.3530  69.9605    2.6  18.1 -151.3   0.8522   4.5 ------	UNKNOWN                       
     30.1512  62.5480    2.8  31.0  -38.5   1.0133   4.2 ------	UNKNOWN                       
    214.5007  40.0997    3.8  58.7 -159.2   5.6279   3.1 ------	UNKNOWN                       
    

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

    Time interval of the image:
    -15.912000 37.788600
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    254.4948  35.3142    4.8  46.5  163.5  -0.4499  -2.4    2.5	Her X-1                       
    299.4941  35.2184    5.9  31.3  108.5  -0.2842  -2.0    4.8	Cyg X-1                       
    307.9268  40.8076    0.0  24.5   96.8   0.1995   1.7   12.0	Cyg X-3                       
    326.1626  38.4747    9.7  27.1   64.3   0.1362   1.2    9.2	Cyg X-2                       
    263.0012  25.8870    2.5  51.3  149.0   1.9504   4.5 ------	UNKNOWN                       
     29.6413  41.6359    1.0  46.3  -15.2   1.7786  11.6 ------	UNKNOWN                       
    215.5360  45.9595    2.1  53.3 -156.4   1.2711   5.4 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    99.788600 962.193500
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    323.9581  46.4829    4.1  46.1  139.2   5.1845   2.8 ------	UNKNOWN                       
    248.7138  78.5284    3.2  57.6 -168.8   9.3524   3.7 ------	UNKNOWN                       
     97.8304  61.3920    4.2  44.2 -120.7   5.8946   2.8 ------	UNKNOWN                       
    
    Plot creation:
    Sun May 31 03:22:56 EDT 2015