batgrbproduct Analysis for Trigger=211117

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Jan 22 16:09:07 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger211117
======================================================================

  Trigger: 00211117      Segment: 000

  BAT Trigger Time: 169956680   [s; MET]
      Trigger Stop: 169956744   [s; MET]
               UTC: 2006-05-22T02:11:18.792140    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 322.950749367837   Dec: 2.87593922853813  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    13.36
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    13.36

  Flight Position:   [ source = BAT ]
    RA: 322.950749367837   Dec: 2.87593922853813  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 322.956577961755   Dec: 2.89145191205485  [deg; J2000]  
        { 21h 31m 49.6s , +02d 53' 29.2" }
         +/- 1.48640386183072 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.463445783359746 [arcmin] (formal 1-sigma fit error)
    SNR: 17.2666716352673
 
  Angular difference between Flight and Ground position is 0.994137 arcmin
 
  Partial Coding Fraction: 0.75    [ including projection effects ]

  Duration
     T90: 69.1240000128746 +/- 5.89661600721078
        Measured from: 3.09200000762939
                   to: 72.216000020504     [s; relative to TRIGTIME]
     T50: 42.0640000104904 +/- 9.0776994944415
        Measured from: 16.7960000038147
                   to: 58.8600000143051     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 4.40799999237061     
                   to: 5.40799999237061     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.164000004529953     
                   to: 77.3280000090599     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.456651   0.742537   0.443528   0.110681
           0.049265   0.052034   0.047935   0.048128 [error]
 Peak      0.019105   0.027572   0.010208   0.007058
           0.005838   0.006116   0.005385   0.005386 [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 1.58e-07 2.84e-07 3.92e-07 1.12e-06 1.13e-06 1.96e-06   erg/cm2
              Error 2.22e-08 2.49e-08 4.63e-08 2.80e-07 1.11e-07 3.18e-07   erg/cm2
Peak flux Power-law 2.30e-01 1.80e-01 9.47e-02 7.22e-02 5.37e-01 5.77e-01   ph/cm2/s
              Error 8.49e-02 4.93e-02 4.18e-02 6.08e-02 1.47e-01 1.61e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.40e-07 3.10e-07 4.00e-07 3.46e-07 1.04e-06 1.20e-06   erg/cm2
              Error 2.67e-08 3.35e-08 5.21e-08 3.65e-07 1.30e-07 3.85e-07   erg/cm2
Peak flux Cutoff-PL 1.93e-01 2.29e-01 8.01e-02 5.31e-03 5.08e-01 5.08e-01   ph/cm2/s
              Error 1.47e-01 7.69e-02 5.26e-02 5.35e-02 1.46e-01 1.48e-01   ph/cm2/s
 
Fluence        Band 1.31e-07 3.22e-07 3.80e-07 6.79e-07 1.06e-06 1.52e-06   erg/cm2
              Error -------- -------- 5.14e-08 -------- -------- --------   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    1.537    0.150    -      -           1.55e-03 1.39e-04   65.740 57
CPL   0.699    0.763      73.3   63.9      4.27e-03 4.89e-03   61.300 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.927    0.493    -      -           3.70e-03 1.27e-03   45.930 57
CPL  -0.197    3.333      40.2    0.0      6.99e-02 1.60e+01   43.970 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: 80.640000 sec.
T50 in the 50-300 keV band: 34.816000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   77.164    0.164   77.328
T90    69.124    3.092   72.216
T50    42.064   16.796   58.860
Peak    1.000    4.408    5.408
  • Click here for the BAT GCN circular template

    Image

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

    #   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
      322.9566     2.8915   0.0111    31.8761   177.1278         1.8654981     17.267 TRIG_00211117                 
     
    Foreground time interval of the image:
      0.164  73.101 (delta_t =  72.937 [sec])
    Background time interval of the image:
    -239.000   0.164 (delta_t = 239.164 [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 64.000000
    

    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 64.000000
    

    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 64.000000
    

    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    0.164 sec. to   77.328 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.53701     ( -0.148746   0.150573 )
    Norm@50keV  : 1.55070E-03    ( -0.000139417   0.000138496 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          65.74 using 59 PHA bins.
    # Reduced chi-squared =          1.153 for     57 degrees of freedom 
    # Null hypothesis probability =   1.998362e-01
     
    Photon flux (15-150 keV)    in 77.16 sec: 0.195578 ( -0.0168926  0.0169089 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.12872e-06 ( -1.1081e-07  1.11821e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    0.164 sec. to   77.328 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.698574     ( -0.837202   0.688214 )
    Epeak [keV] : 73.3082      ( -16.8141 110.887 )
    Norm@50keV  : 4.27250E-03    ( -0.00238145   0.00739319 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          61.30 using 59 PHA bins.
    # Reduced chi-squared =          1.095 for     56 degrees of freedom 
    # Null hypothesis probability =   2.916255e-01
     
    Photon flux (15-150 keV)    in 77.16 sec: 0.187915 ( -0.018154  0.018055 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.04326e-06 ( -1.29058e-07  1.31704e-07 ) ergs/cm2
     
    
    Band function
    Time interval is from    0.164 sec. to   77.328 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 2.37164E-02   ( -1.20159   1.87723 )
    beta        : -2.01884    ( 2.00871   0.375859 )
    Epeak [keV] : 53.6750      ( -13.4655 53.5255 )
    Norm@50keV   : 1.17306E-02    ( -0.0121818   0.160387 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.84 using 59 PHA bins.
    # Reduced chi-squared =          1.088 for     55 degrees of freedom 
    # Null hypothesis probability =   3.044187e-01
     
    Photon flux (15-150 keV)    in 77.16 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.05715e-06 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 13.5770  (-1.28082  1.45699)
    R^2/D10^2   : 3.16285E-02  (-0.00967208   0.0134972)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          75.11 using 59 PHA bins.
    # Reduced chi-squared =          1.318 for     57 degrees of freedom 
    # Null hypothesis probability =   5.422411e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  9.525e-08   1.408e-08
    25- 50  3.434e-07   3.804e-08
    50-150  4.102e-07   7.566e-08
    15-150  8.489e-07   8.989e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 199.008       (-76.02      -198.946)
    Norm        : 0.798903       (-0.0680966     0.077127)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          63.02 using 59 PHA bins.
    # Reduced chi-squared =          1.106 for     57 degrees of freedom 
    # Null hypothesis probability =   2.718382e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.535e-07   3.958e-08
    25- 50  2.953e-07   1.159e-07
    50-150  6.472e-07   3.357e-07
    15-150  1.096e-06   5.274e-07
    
    Double BB
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 10.0077        (      )
    R1^2/D10^2  : 7.14481E-02        (-0.0317549      0.086261)
    kT2 [keV]   : 36.5830        (-16.9808      -38.4025)
    R2^2/D10^2  : 5.82800E-04    (-0.000425848   0.00170061)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          65.66 using 59 PHA bins.
    #Fit statistic : Chi-Squared =          60.83 using 59 PHA bins.
    # Reduced chi-squared =          1.194 for     55 degrees of freedom 
    # Reduced chi-squared =          1.106 for     55 degrees of freedom 
    # Null hypothesis probability =   1.539482e-01
    # Null hypothesis probability =   2.742050e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.364e-07   4.853e-08
    25- 50  3.098e-07   5.104e-08
    50-150  4.722e-07   9.687e-08
    15-150  9.184e-07   1.388e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from    4.408 sec. to    5.408 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.92669     ( -0.4612   0.525245 )
    Norm@50keV  : 3.70260E-03    ( -0.00129636   0.00124296 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.93 using 59 PHA bins.
    # Reduced chi-squared =         0.8058 for     57 degrees of freedom 
    # Null hypothesis probability =   8.528986e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.537486 ( -0.14655  0.14655 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.40551e-08 ( -1.10769e-08  1.17451e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    4.408 sec. to    5.408 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: -0.196691     ( -4.30321   2.36365 )
    Epeak [keV] : 40.2040      ( -40.0097 -40.0097 )
    Norm@50keV  : 6.99458E-02    ( -0.0924331   31.8644 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          43.97 using 59 PHA bins.
    # Reduced chi-squared =         0.7852 for     56 degrees of freedom 
    # Null hypothesis probability =   8.781009e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.508031 ( -0.144933  0.146936 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.82343e-08 ( -8.906e-09  1.26267e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from    4.408 sec. to    5.408 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 0.499086   ( -1.28712   -1.28712 )
    beta        : -4.54695    ( 4.62547   12.3523 )
    Epeak [keV] : 40.0723      ( -39.8219 14.5044 )
    Norm@50keV   : 0.104954    ( -0.0606566   95.2825 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          43.90 using 59 PHA bins.
    # Reduced chi-squared =         0.7982 for     55 degrees of freedom 
    # Null hypothesis probability =   8.586798e-01
     
    Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.9114e-08 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 10.1495  (-2.3938  3.05589)
    R^2/D10^2   : 0.256379  (-0.164089   0.446345)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          44.25 using 59 PHA bins.
    # Reduced chi-squared =         0.7763 for     57 degrees of freedom 
    # Null hypothesis probability =   8.913278e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.405e-09   2.970e-09
    25- 50  1.372e-08   7.182e-09
    50-150  7.475e-09   4.782e-09
    15-150  2.660e-08   1.415e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 65.8414       (-34.0363      -65.8409)
    Norm        : 2.75692       (-0.965629     1.49284)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          44.92 using 59 PHA bins.
    # Reduced chi-squared =         0.7880 for     57 degrees of freedom 
    # Null hypothesis probability =   8.769112e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  7.023e-09   3.134e-09
    25- 50  1.099e-08   6.827e-09
    50-150  1.347e-08   1.148e-08
    15-150  3.148e-08   2.022e-08
    
    Double BB
    R1^2/D10^2  : 2.29325E-05        (      )
    kT2 [keV]   : 9.66963        (-9.65942      3.07954)
    R2^2/D10^2  : 0.294911    (-0.297112   -0.297112)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          43.83 using 59 PHA bins.
    #Fit statistic : Chi-Squared =          43.71 using 59 PHA bins.
    #Fit statistic : Chi-Squared =          43.58 using 59 PHA bins.
    # Reduced chi-squared =         0.7970 for     55 degrees of freedom 
    # Reduced chi-squared =         0.7947 for     55 degrees of freedom 
    # Reduced chi-squared =         0.7923 for     55 degrees of freedom 
    # Null hypothesis probability =   8.603705e-01
    # Null hypothesis probability =   8.633564e-01
    # Null hypothesis probability =   8.666110e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  6.128e-09   3.140e-09
    25- 50  1.287e-08   7.715e-09
    50-150  8.639e-09   5.915e-09
    15-150  2.763e-08   1.543e-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: 1.52876     ( -0.150393   0.152362 )
    Norm@50keV  : 1.59282E-03    ( -0.000143546   0.000142578 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          58.00 using 59 PHA bins.
    # Reduced chi-squared =          1.018 for     57 degrees of freedom 
    # Null hypothesis probability =   4.380959e-01
     
    Photon flux (15-150 keV)    in 72.94 sec: 0.200424 ( -0.0174104  0.017428 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.09715e-06 ( -1.08066e-07  1.09339e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.795553     ( -0.797921   0.664862 )
    Epeak [keV] : 78.7960      ( -19.9044 239.976 )
    Norm@50keV  : 3.82596E-03    ( -0.00206774   0.00598328 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          54.43 using 59 PHA bins.
    # Reduced chi-squared =         0.9720 for     56 degrees of freedom 
    # Null hypothesis probability =   5.344039e-01
     
    Photon flux (15-150 keV)    in 72.94 sec: 0.193416 ( -0.018654  0.018561 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.02693e-06 ( -1.24501e-07  1.26514e-07 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -0.363165   ( -0.883643   1.73832 )
    beta        : -1.91647    ( 1.91978   0.364054 )
    Epeak [keV] : 59.1910      ( -24.8824 120.693 )
    Norm@50keV   : 7.11306E-03    ( -0.00757413   0.0895426 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          53.88 using 59 PHA bins.
    # Reduced chi-squared =         0.9797 for     55 degrees of freedom 
    # Null hypothesis probability =   5.173044e-01
     
    Photon flux (15-150 keV)    in 72.94 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.03935e-06 ( 0  0 ) ergs/cm2
     
    

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

    S(25-50 keV)  = 2.84e-07
    S(50-100 keV) = 3.92e-07
    

    T90 vs. Hardness ratio plot

    T90                                   = 69.1240000128746 sec.
    Hardness ratio (energy fluence ratio) = 1.38028
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.62605
    Count Ratio (50-100 keV) / (15-25 keV) = 0.971263
    

    Mask shadow pattern

    IMX = -6.210847846077263E-01, IMY = -3.116077551905699E-02
    

    TIME vs. PHA plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 64.000000
    

    TIME vs. DetID plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 64.000000
    

    100 us light curve (15-350 keV)

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 64.000000
    

    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:
    -239.000000 0.164000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    299.4426 -39.8369    2.4  29.3   71.4   1.2879   4.8 ------	UNKNOWN                       
    323.4684   3.5706    2.8  32.4  178.4   0.7951   4.1 ------	UNKNOWN                       
    344.6202 -22.2876    3.2  12.8  -98.6   0.6362   3.6 ------	UNKNOWN                       
    

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

    Time interval of the image:
    0.164000 73.100600
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    322.9566   2.8915    0.7  31.9  177.1   1.8655  17.3 ------	UNKNOWN                       
    339.8633  20.7092    2.8  49.1 -156.0   0.8951   4.2 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    125.900600 963.092000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    288.7847  10.9329    1.4  34.8  125.8   7.0143   8.2    1.1	GRS 1915+105                  
    299.5882  35.2014    0.4  38.9  169.6  21.4959  28.2    0.1	Cyg X-1                       
    308.0573  40.9460    1.6  40.4 -176.8   4.5064   7.2    2.4	Cyg X-3                       
    326.2253  38.3191    3.6  35.6 -154.9   1.8559   3.2    2.5	Cyg X-2                       
    315.6653  37.8487    2.5  35.6 -169.2   2.2795   4.7 ------	UNKNOWN                       
    310.1979  58.7630    2.0  56.8 -167.2   9.7141   5.6 ------	UNKNOWN                       
      3.4163  11.3530    4.3  41.0  -83.3   6.3184   2.7 ------	UNKNOWN                       
    
    Plot creation:
    Sun May 31 13:04:37 EDT 2015