batgrbproduct Analysis for Trigger=510341

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Jan 13 16:59:46 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger510341
======================================================================

  Trigger: 00510341      Segment: 000

  BAT Trigger Time: 346477845.504   [s; MET]
      Trigger Stop: 346477849.6   [s; MET]
               UTC: 2011-12-25T03:50:37.792220    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 13.1017626462844   Dec: 51.5887628616773  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.52
     Image Trigger?:     NO
     Rate S/N Ratio:     10.3923048454133  [ if not an image trigger ]
     Image S/N Ratio:    7.52

  Flight Position:   [ source = BAT ]
    RA: 13.1017626462844   Dec: 51.5887628616773  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 13.1510190605348   Dec: 51.5705410941366  [deg; J2000]  
        { 00h 52m 36.2s , +51d 34' 13.9" }
         +/- 1.29070227715879 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.444603555670905 [arcmin] (formal 1-sigma fit error)
    SNR: 21.1249365835153
 
  Angular difference between Flight and Ground position is 2.137345 arcmin
 
  Partial Coding Fraction: 0.9375    [ including projection effects ]

  Duration
     T90: 105.728000044823 +/- 26.179375076043
        Measured from: -7.216000020504
                   to: 98.5120000243187     [s; relative to TRIGTIME]
     T50: 43.8720000386238 +/- 12.810165975541
        Measured from: -0.368000030517578
                   to: 43.5040000081062     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -4.36400002241135     
                   to: -3.36400002241135     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -10.0480000376701     
                   to: 111.231999993324     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.755705   0.905834   0.520344   0.061115
           0.060862   0.062466   0.056075   0.050219 [error]
 Peak      0.022966   0.041136   0.012834   0.006585
           0.005809   0.005936   0.005358   0.004538 [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 2.19e-07 3.47e-07 4.14e-07 9.60e-07 1.26e-06 1.94e-06   erg/cm2
              Error 2.74e-08 2.83e-08 5.40e-08 2.56e-07 1.25e-07 3.08e-07   erg/cm2
Peak flux Power-law 2.50e-01 2.17e-01 1.30e-01 1.17e-01 6.47e-01 7.13e-01   ph/cm2/s
              Error 7.46e-02 4.58e-02 4.16e-02 7.16e-02 1.36e-01 1.56e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.10e-07 3.66e-07 4.10e-07 4.38e-07 1.19e-06 1.42e-06   erg/cm2
              Error 3.09e-08 3.82e-08 5.92e-08 3.89e-07 1.51e-07 4.57e-07   erg/cm2
Peak flux Cutoff-PL 2.07e-01 2.79e-01 1.07e-01 6.97e-03 5.99e-01 6.00e-01   ph/cm2/s
              Error 9.30e-02 8.03e-02 8.38e-02 5.65e-02 1.43e-01 1.17e-01   ph/cm2/s
 
Fluence        Band 2.04e-07 3.72e-07 3.96e-07 7.01e-07 1.20e-06 1.68e-06   erg/cm2
              Error 3.25e-08 -------- -------- -------- 1.48e-07 --------   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    1.746    0.152    -      -           1.12e-03 1.06e-04   59.010 57
CPL   1.299    0.616      68.2  -24.5      2.00e-03 1.97e-03   57.480 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.745    0.366    -      -           4.79e-03 1.19e-03   77.750 57
CPL  -0.601    3.923      43.2  102.7      1.20e-01 1.41e+02   74.880 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: 25.408000 sec.
T50 in the 50-300 keV band: 14.784000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  121.280  -10.048  111.232
T90   105.728   -7.216   98.512
T50    43.872   -0.368   43.504
Peak    1.000   -4.364   -3.364
  • 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
       13.1510    51.5705   0.0091    17.5515  -137.5648         1.6335769     21.125 TRIG_00510341                 
     
    Foreground time interval of the image:
    -10.048  34.797 (delta_t =  44.845 [sec])
    Background time interval of the image:
    -239.504 -10.048 (delta_t = 229.456 [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)

    The mask-weighted light curves based on cleaned DPHs

    Spectral Evolution

    Spectra

    Notes:

    Time averaged spectrum fit using the average DRM

    Power-law model
    Time interval is from  -10.048 sec. to  111.232 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.74621     ( -0.149902   0.154005 )
    Norm@50keV  : 1.12364E-03    ( -0.000107193   0.000105582 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.01 using 59 PHA bins.
    # Reduced chi-squared =          1.035 for     57 degrees of freedom 
    # Null hypothesis probability =   4.018619e-01
     
    Photon flux (15-150 keV)    in 121.3 sec: 0.151723 ( -0.0124324  0.0124358 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.25794e-06 ( -1.23956e-07  1.26094e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from  -10.048 sec. to  111.232 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.29873     ( -0.713459   0.519462 )
    Epeak [keV] : 68.2237      ( -19.2054 -68.2256 )
    Norm@50keV  : 2.00184E-03    ( -0.00094732   0.00299807 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          57.48 using 59 PHA bins.
    # Reduced chi-squared =          1.026 for     56 degrees of freedom 
    # Null hypothesis probability =   4.200352e-01
     
    Photon flux (15-150 keV)    in 121.3 sec: 0.148536 ( -0.013176  0.01315 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.19366e-06 ( -1.48534e-07  1.52878e-07 ) ergs/cm2
     
    
    Band function
    Time interval is from  -10.048 sec. to  111.232 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 0.828972   ( -0.815876   -0.815876 )
    beta        : -1.88982    ( 1.88997   0.225584 )
    Epeak [keV] : 29.9738      ( -30.0947 82.0193 )
    Norm@50keV   : 7.72458E-02    ( -0.0706722   74.2649 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          56.81 using 59 PHA bins.
    # Reduced chi-squared =          1.033 for     55 degrees of freedom 
    # Null hypothesis probability =   4.075958e-01
     
    Photon flux (15-150 keV)    in 121.3 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.20368e-06 ( -1.20284e-06  -1.44371e-07 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 11.3604  (-1.11951  1.26684)
    R^2/D10^2   : 4.43159E-02  (-0.0142997   0.0207586)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          84.04 using 59 PHA bins.
    # Reduced chi-squared =          1.474 for     57 degrees of freedom 
    # Null hypothesis probability =   1.140964e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.458e-07   2.103e-08
    25- 50  4.294e-07   4.039e-08
    50-150  3.207e-07   6.587e-08
    15-150  8.959e-07   9.316e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 106.462       (-29.912      56.2494)
    Norm        : 0.661206       (-0.0709718     0.0828059)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          57.44 using 59 PHA bins.
    # Reduced chi-squared =          1.008 for     57 degrees of freedom 
    # Null hypothesis probability =   4.589212e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.096e-07   2.432e-08
    25- 50  3.668e-07   3.700e-08
    50-150  6.155e-07   2.331e-07
    15-150  1.192e-06   2.521e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 6.52199        (-1.88688      2.13006)
    R1^2/D10^2  : 0.227601        (-0.130839      0.50161)
    kT2 [keV]   : 21.8359        (-6.13342      19.6063)
    R2^2/D10^2  : 2.87284E-03    (-0.00252784   0.00791982)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          58.16 using 59 PHA bins.
    # Reduced chi-squared =          1.057 for     55 degrees of freedom 
    # Null hypothesis probability =   3.598573e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.051e-07   6.833e-08
    25- 50  3.697e-07   1.203e-07
    50-150  6.049e-07   3.154e-07
    15-150  1.180e-06   4.657e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from   -4.364 sec. to   -3.364 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.74464     ( -0.351731   0.379416 )
    Norm@50keV  : 4.79445E-03    ( -0.00121066   0.001173 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          77.75 using 59 PHA bins.
    # Reduced chi-squared =          1.364 for     57 degrees of freedom 
    # Null hypothesis probability =   3.525379e-02
     
    Photon flux (15-150 keV)    in 1 sec: 0.647014 ( -0.136204  0.136204 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 4.42539e-08 ( -1.12011e-08  1.17236e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   -4.364 sec. to   -3.364 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: -0.600980     ( -5.46419   2.38139 )
    Epeak [keV] : 43.2182      ( -9.27007 196.121 )
    Norm@50keV  : 0.120154    ( -0.141889   281.816 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          74.88 using 59 PHA bins.
    # Reduced chi-squared =          1.337 for     56 degrees of freedom 
    # Null hypothesis probability =   4.678397e-02
     
    Photon flux (15-150 keV)    in 1 sec: 0.599090 ( -0.142392  0.143877 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.46596e-08 ( -9.9969e-09  1.44106e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   -4.364 sec. to   -3.364 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 1.46363   ( -2.82341   -1.50727 )
    beta        : -2.74560    ( 2.75685   0.961254 )
    Epeak [keV] : 39.0391      ( -11.4894 25.3829 )
    Norm@50keV   : 0.462219    ( -0.576327   44.7965 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          73.80 using 59 PHA bins.
    # Reduced chi-squared =          1.342 for     55 degrees of freedom 
    # Null hypothesis probability =   4.612397e-02
     
    Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.81949e-08 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 10.5406  (-1.95328  2.54032)
    R^2/D10^2   : 0.268440  (-0.149208   0.304712)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          75.04 using 59 PHA bins.
    # Reduced chi-squared =          1.316 for     57 degrees of freedom 
    # Null hypothesis probability =   5.490710e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  6.171e-09   2.483e-09
    25- 50  1.650e-08   5.255e-09
    50-150  1.001e-08   5.075e-09
    15-150  3.268e-08   1.240e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 93.9756       (-46.8616      -93.9759)
    Norm        : 2.94264       (-0.699104     1.01823)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          76.50 using 59 PHA bins.
    # Reduced chi-squared =          1.342 for     57 degrees of freedom 
    # Null hypothesis probability =   4.338956e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  7.686e-09   3.015e-09
    25- 50  1.312e-08   6.883e-09
    50-150  2.051e-08   1.521e-08
    15-150  4.132e-08   2.603e-08
    
    Double BB
    R1^2/D10^2  : 1.32282E+06        (      )
    kT2 [keV]   : 10.8509        (-2.01906      2.79605)
    R2^2/D10^2  : 0.236633    (-0.100469   0.271828)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          75.04 using 59 PHA bins.
    #Fit statistic : Chi-Squared =          74.38 using 59 PHA bins.
    #Fit statistic : Chi-Squared =          74.26 using 59 PHA bins.
    # Reduced chi-squared =          1.364 for     55 degrees of freedom 
    # Reduced chi-squared =          1.352 for     55 degrees of freedom 
    # Reduced chi-squared =          1.350 for     55 degrees of freedom 
    # Null hypothesis probability =   3.756295e-02
    # Null hypothesis probability =   4.190865e-02
    # Null hypothesis probability =   4.278686e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  0.000e+00   0.000e+00
    25- 50  0.000e+00   0.000e+00
    50-150  0.000e+00   0.000e+00
    15-150  0.000e+00   0.000e+00
    

    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: 1.69966     ( -0.139451   0.142568 )
    Norm@50keV  : 2.13935E-03    ( -0.000182209   0.000179848 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          55.93 using 59 PHA bins.
    # Reduced chi-squared =         0.9813 for     57 degrees of freedom 
    # Null hypothesis probability =   5.152077e-01
     
    Photon flux (15-150 keV)    in 44.84 sec: 0.284095 ( -0.0215137  0.021525 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 8.88204e-07 ( -7.9543e-08  8.06748e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.42250     ( -0.583181   0.390608 )
    Epeak [keV] : 95.2949      (   )
    Norm@50keV  : 3.02130E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          55.12 using 59 PHA bins.
    # Reduced chi-squared =         0.9843 for     56 degrees of freedom 
    # Null hypothesis probability =   5.081077e-01
     
    Photon flux (15-150 keV)    in 44.84 sec: 0.280136 ( -0.022735  0.022701 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 8.62771e-07 ( -9.24287e-08  9.1366e-08 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.36737   ( 1.36739   1.36739 )
    beta        : -2.27195    ( 2.23002   10.906 )
    Epeak [keV] : 89.2595      ( -89.2446 -89.2446 )
    Norm@50keV   : 3.19915E-03    ( -0.00121802   0 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          55.14 using 59 PHA bins.
    # Reduced chi-squared =          1.002 for     55 degrees of freedom 
    # Null hypothesis probability =   4.694456e-01
     
    Photon flux (15-150 keV)    in 44.84 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)  = 3.47e-07
    S(50-100 keV) = 4.14e-07
    

    T90 vs. Hardness ratio plot

    T90                                   = 105.728000044823 sec.
    Hardness ratio (energy fluence ratio) = 1.19308
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.19866
    Count Ratio (50-100 keV) / (15-25 keV) = 0.688554
    

    Mask shadow pattern

    IMX = -2.334325516077084E-01, IMY = 2.134160851587494E-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:
    -239.504000 -10.048000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     82.9200  53.9723    2.7  23.6   61.8   1.0515   4.3 ------	UNKNOWN                       
    105.3448  63.8587    2.6  28.9   29.4   0.9286   4.5 ------	UNKNOWN                       
    345.2744  27.7180    2.8  49.2 -133.7   3.5621   4.2 ------	UNKNOWN                       
    322.9180  52.0906    3.8  40.8  -93.0   2.9057   3.1 ------	UNKNOWN                       
    

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

    Time interval of the image:
    -10.048000 34.796620
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    117.7191  49.4308    2.5  42.9   42.5   1.0308   4.7 ------	UNKNOWN                       
     13.1510  51.5706    0.5  17.6 -137.6   1.6337  21.1 ------	UNKNOWN                       
      5.2019  53.0108    2.3  20.3 -124.4   0.4148   5.1 ------	UNKNOWN                       
    307.0137  60.5646    2.4  41.4  -74.5   1.5133   4.8 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    76.796600 962.645900
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    326.3728  38.3694   40.4  34.9  -85.6  -0.3844  -0.3    9.9	Cyg X-2                       
     99.1047  65.7071    3.1  42.9   45.1   6.7267   3.8 ------	UNKNOWN                       
     74.0977  65.2596    2.3  33.1   50.1   4.9467   5.0 ------	UNKNOWN                       
    359.2853  43.0742    3.1  12.6 -119.0   2.0308   3.8 ------	UNKNOWN                       
    249.1867  73.0915    3.7  49.5  -10.5   3.3371   3.1 ------	UNKNOWN                       
    274.9566  62.2614    3.0  49.3  -29.4   4.6213   3.9 ------	UNKNOWN                       
    258.9197  58.6340    3.8  57.5  -26.2   9.7088   3.0 ------	UNKNOWN                       
    
    Plot creation:
    Sat May 30 20:50:16 EDT 2015