batgrbproduct Analysis for Trigger=305011

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Jan 20 03:59:06 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger305011
======================================================================

  Trigger: 00305011      Segment: 000

  BAT Trigger Time: 226581813.44   [s; MET]
      Trigger Stop: 226581821.632   [s; MET]
               UTC: 2008-03-07T11:23:30.814100    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 136.632785318983   Dec: 35.1682786660791  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.15
     Image Trigger?:     NO
     Rate S/N Ratio:     9  [ if not an image trigger ]
     Image S/N Ratio:    7.15

  Flight Position:   [ source = BAT ]
    RA: 136.632785318983   Dec: 35.1682786660791  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 136.632227440901   Dec: 35.1513774257805  [deg; J2000]  
        { 09h 06m 31.7s , +35d 09' 05.0" }
         +/- 1.55259397658995 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.957767741886135 [arcmin] (formal 1-sigma fit error)
    SNR: 16.2247691847975
 
  Angular difference between Flight and Ground position is 1.014444 arcmin
 
  Partial Coding Fraction: 0.8125    [ including projection effects ]

  Duration
     T90: 124 +/- 23.3452350598575
        Measured from: 2.56000000238419
                   to: 126.560000002384     [s; relative to TRIGTIME]
     T50: 50 +/- 28.2842712474619
        Measured from: 12.5600000023842
                   to: 62.5600000023842     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 8.56000000238419     
                   to: 9.56000000238419     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.439999997615814     
                   to: 140.560000002384     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.566583   0.601229   0.367487   0.143710
           0.057595   0.059674   0.052071   0.044176 [error]
 Peak      0.002164   0.019172   0.021325   0.002617
           0.005161   0.005588   0.004943   0.004027 [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 1.54e-07 2.51e-07 3.09e-07 7.52e-07 9.27e-07 1.47e-06   erg/cm2
              Error 2.51e-08 2.62e-08 5.10e-08 2.57e-07 1.18e-07 3.04e-07   erg/cm2
Peak flux Power-law 5.80e-02 9.81e-02 1.26e-01 3.27e-01 3.72e-01 6.10e-01   ph/cm2/s
              Error 4.47e-02 4.65e-02 3.66e-02 2.26e-01 1.19e-01 2.18e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.55e-07 2.51e-07 3.08e-07 7.40e-07 9.26e-07 1.45e-06   erg/cm2
              Error 2.51e-08 2.62e-08 5.10e-08 2.02e-07 1.18e-07 3.97e-07   erg/cm2
Peak flux Cutoff-PL 5.11e-02 9.73e-02 1.31e-01 2.57e-01 3.67e-01 5.49e-01   ph/cm2/s
              Error 5.45e-02 7.30e-02 4.43e-02 3.01e-01 1.23e-01 2.77e-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    1.699    0.196    -      -           7.10e-04 8.48e-05   49.330 57
CPL   1.695    0.364    9999.2   -0.0      7.12e-04 3.79e-04   49.330 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.636    0.598    -      -           3.20e-03 1.13e-03   48.880 57
CPL   0.301    1.902     342.0    0.0      4.25e-03 2.89e-02   48.810 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: 36.032000 sec.
T50 in the 50-300 keV band: 17.472000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  141.000   -0.440  140.560
T90   124.000    2.560  126.560
T50    50.000   12.560   62.560
Peak    1.000    8.560    9.560
  • 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
      136.6322    35.1514   0.0118    14.6022    99.2895         1.1813287     16.225 TRIG_00305011                 
     
    Foreground time interval of the image:
     -0.440  49.861 (delta_t =  50.301 [sec])
    Background time interval of the image:
    -239.440  -0.440 (delta_t = 239.000 [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 8.192000
    

    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 8.192000
    

    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 8.192000
    

    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   -0.440 sec. to  140.560 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.69897     ( -0.193282   0.198745 )
    Norm@50keV  : 7.10105E-04    ( -8.57503e-05   8.39157e-05 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          49.33 using 59 PHA bins.
    # Reduced chi-squared =         0.8654 for     57 degrees of freedom 
    # Null hypothesis probability =   7.550703e-01
     
    Photon flux (15-150 keV)    in 141 sec: 9.42759E-02 ( -0.00985653  0.00985963 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 9.27113e-07 ( -1.17082e-07  1.19308e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   -0.440 sec. to  140.560 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.69541     ( -0.525719   0.202006 )
    Epeak [keV] : 9999.19      ( -9999.35 -9999.36 )
    Norm@50keV  : 7.12365E-04    ( -8.67155e-05   0.000671489 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          49.33 using 59 PHA bins.
    # Reduced chi-squared =         0.8809 for     56 degrees of freedom 
    # Null hypothesis probability =   7.235286e-01
     
    Photon flux (15-150 keV)    in 141 sec: 9.42960E-02 ( -0.0099031  0.009817 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 9.25647e-07 ( -1.19182e-07  1.17745e-07 ) ergs/cm2
     
    
    Band function
    Time interval is from   -0.440 sec. to  140.560 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 4.65768   ( -4.65768   -4.65768 )
    beta        : -1.76797    ( -0.236184   0.216793 )
    Epeak [keV] : 21.5670      ( -21.567 5.59653 )
    Norm@50keV   : 122.518    ( -12.7438   552927 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          48.88 using 59 PHA bins.
    # Reduced chi-squared =         0.8888 for     55 degrees of freedom 
    # Null hypothesis probability =   7.060756e-01
     
    Photon flux (15-150 keV)    in 141 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]    : 11.0819  (-1.48683  1.78876)
    R^2/D10^2   : 2.97339E-02  (-0.0125607   0.0209624)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          77.59 using 59 PHA bins.
    # Reduced chi-squared =          1.361 for     57 degrees of freedom 
    # Null hypothesis probability =   3.619873e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.077e-07   1.965e-08
    25- 50  3.075e-07   4.082e-08
    50-150  2.146e-07   5.732e-08
    15-150  6.298e-07   1.000e-07
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 135.501       (-54.0221      -134.06)
    Norm        : 0.390830       (-0.0471429     0.0642403)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          51.27 using 59 PHA bins.
    # Reduced chi-squared =         0.8994 for     57 degrees of freedom 
    # Null hypothesis probability =   6.890109e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.426e-07   2.236e-08
    25- 50  2.603e-07   8.437e-08
    50-150  4.919e-07   2.623e-07
    15-150  8.948e-07   3.177e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 7.47401        (-1.95699      1.88618)
    R1^2/D10^2  : 0.104971        (-0.0573198      0.131207)
    kT2 [keV]   : 45.3403        (-23.4392      -45.9569)
    R2^2/D10^2  : 1.96513E-04    (-0.00017591   0.000731042)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          48.86 using 59 PHA bins.
    # Reduced chi-squared =         0.8884 for     55 degrees of freedom 
    # Null hypothesis probability =   7.067943e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.482e-07   4.901e-08
    25- 50  2.666e-07   7.472e-08
    50-150  5.686e-07   2.968e-07
    15-150  9.833e-07   3.722e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from    8.560 sec. to    9.560 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.636107     ( -0.659275   0.536512 )
    Norm@50keV  : 3.20303E-03    ( -0.00118135   0.00108534 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          48.88 using 59 PHA bins.
    # Reduced chi-squared =         0.8575 for     57 degrees of freedom 
    # Null hypothesis probability =   7.693370e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.372433 ( -0.117295  0.119915 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 4.02646e-08 ( -1.19697e-08  1.20324e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    8.560 sec. to    9.560 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.301274     ( -4.10513   -0.301253 )
    Epeak [keV] : 341.999      ( -341.987 -341.987 )
    Norm@50keV  : 4.25089E-03    ( -0.002137   0.0555803 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          48.81 using 59 PHA bins.
    # Reduced chi-squared =         0.8717 for     56 degrees of freedom 
    # Null hypothesis probability =   7.410974e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.367096 ( -0.122961  0.123135 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 4.00502e-08 ( -1.23097e-08  1.21087e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from    8.560 sec. to    9.560 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -0.617193   ( 0.617193   0.617193 )
    beta        : -0.636108    ( -0.535786   0.659298 )
    Epeak [keV] : 17.4634      ( -17.4634 -17.4634 )
    Norm@50keV   : 4.72583E-03    ( -0.00256654   44430.2 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          48.88 using 59 PHA bins.
    # Reduced chi-squared =         0.8887 for     55 degrees of freedom 
    # Null hypothesis probability =   7.062399e-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]    : 31.8860  (-10.7836  27.7233)
    R^2/D10^2   : 4.87858E-03  (-0.00487858   0.0116081)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          49.56 using 59 PHA bins.
    # Reduced chi-squared =         0.8695 for     57 degrees of freedom 
    # Null hypothesis probability =   7.474172e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  7.468e-10   4.693e-10
    25- 50  4.720e-09   2.864e-09
    50-150  3.302e-08   1.967e-08
    15-150  3.848e-08   2.332e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 200.000       (      )
    Norm        : 1.51198       (-0.503627     0.503584)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          56.76 using 59 PHA bins.
    # Reduced chi-squared =         0.9958 for     57 degrees of freedom 
    # Null hypothesis probability =   4.839683e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.768e-09   2.438e-09
    25- 50  7.249e-09   4.609e-09
    50-150  1.590e-08   1.016e-08
    15-150  2.691e-08   1.660e-08
    
    Double BB
    R1^2/D10^2  : 1.00090E+06        (      )
    kT2 [keV]   : 33.2580        (-11.677      30.3652)
    R2^2/D10^2  : 4.29222E-03    (   )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          48.48 using 59 PHA bins.
    #Fit statistic : Chi-Squared =          47.09 using 59 PHA bins.
    #Fit statistic : Chi-Squared =          47.05 using 59 PHA bins.
    # Reduced chi-squared =         0.8814 for     55 degrees of freedom 
    # Reduced chi-squared =         0.8562 for     55 degrees of freedom 
    # Reduced chi-squared =         0.8555 for     55 degrees of freedom 
    # Null hypothesis probability =   7.204003e-01
    # Null hypothesis probability =   7.671402e-01
    # Null hypothesis probability =   7.682627e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.914e-09   1.501e-09
    25- 50  5.611e-09   2.936e-09
    50-150  3.324e-08   1.840e-08
    15-150  4.077e-08   2.285e-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: 1.28836     ( -0.167663   0.166003 )
    Norm@50keV  : 1.47690E-03    ( -0.000143516   0.000143294 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          50.35 using 59 PHA bins.
    # Reduced chi-squared =         0.8833 for     57 degrees of freedom 
    # Null hypothesis probability =   7.209702e-01
     
    Photon flux (15-150 keV)    in 50.3 sec: 0.175825 ( -0.0173719  0.0173962 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 7.36206e-07 ( -7.97713e-08  8.0487e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.841049     ( -0.806329   0.5468 )
    Epeak [keV] : 131.289      (   )
    Norm@50keV  : 2.47553E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          49.13 using 59 PHA bins.
    # Reduced chi-squared =         0.8774 for     56 degrees of freedom 
    # Null hypothesis probability =   7.302538e-01
     
    Photon flux (15-150 keV)    in 50.3 sec: 0.172584 ( -0.018194  0.01811 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 7.10186e-07 ( -9.11889e-08  9.03086e-08 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 1.68916   ( -1.14788   -1.14788 )
    beta        : -1.43244    ( 1.42982   0.234677 )
    Epeak [keV] : 36.5147      ( -36.4122 61.5799 )
    Norm@50keV   : 0.157184    ( -0.163176   19.5596 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          48.22 using 59 PHA bins.
    # Reduced chi-squared =         0.8768 for     55 degrees of freedom 
    # Null hypothesis probability =   7.292512e-01
     
    Photon flux (15-150 keV)    in 50.3 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)  = 2.51e-07
    S(50-100 keV) = 3.09e-07
    

    T90 vs. Hardness ratio plot

    T90                                   = 124 sec.
    Hardness ratio (energy fluence ratio) = 1.23108
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.06115
    Count Ratio (50-100 keV) / (15-25 keV) = 0.648602
    

    Mask shadow pattern

    IMX = -4.205418108156107E-02, IMY = -2.571044896457641E-01
    

    TIME vs. PHA plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 8.192000
    

    TIME vs. DetID plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 8.192000
    

    100 us light curve (15-350 keV)

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 8.192000
    

    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:
    -239.440000 -0.440000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.6280  22.0183    0.3  40.4 -147.3  10.4684  38.7    0.4	Crab                          
    251.7999  68.4053    2.5  59.2  -14.9   4.9023   4.6 ------	UNKNOWN                       
    354.5855  80.1076    3.2  50.6  -44.5   3.7166   3.6 ------	UNKNOWN                       
     45.2588  69.9081    2.4  43.6  -63.8   3.9336   4.8 ------	UNKNOWN                       
     54.2714  61.0232    2.4  41.6  -77.7   3.3838   4.9 ------	UNKNOWN                       
    

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

    Time interval of the image:
    -0.440000 49.860600
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.6220  22.0145    3.1  40.4 -147.3  -0.3851  -3.7    0.6	Crab                          
    136.6322  35.1513    0.7  14.6   99.3   1.1812  16.2 ------	UNKNOWN                       
    132.3332  49.0574    2.4   6.5   24.9   0.3181   4.9 ------	UNKNOWN                       
     98.3740   8.3942    3.0  43.5 -176.5   0.4449   3.9 ------	UNKNOWN                       
     89.5491  53.1424    2.2  23.0  -94.2   0.4310   5.2 ------	UNKNOWN                       
    327.2766  80.9620    2.0  52.3  -39.1   1.8007   5.7 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    86.060600 962.593100
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.6295  22.0131    1.1  47.8 -129.5  19.5727  10.5    0.2	Crab                          
    143.7080   3.0851    3.5  32.8  128.5   2.4500   3.3 ------	UNKNOWN                       
    166.3879  29.5007    2.5  25.7   56.0   2.5993   4.7 ------	UNKNOWN                       
    162.9601  47.6551    3.0  23.2   11.0   1.6423   3.9 ------	UNKNOWN                       
     91.3281  -6.1606    3.0  59.4 -163.1  14.9524   3.8 ------	UNKNOWN                       
     97.9275  42.5855    2.1  30.7 -102.6   3.1134   5.4 ------	UNKNOWN                       
     91.3912  61.3984    3.2  38.6  -71.4   3.6111   3.6 ------	UNKNOWN                       
    
    Plot creation:
    Sun May 31 08:12:11 EDT 2015