batgrbproduct Analysis for Trigger=553847

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Jan 12 04:34:01 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger553847
======================================================================

  Trigger: 00553847      Segment: 000

  BAT Trigger Time: 388004464   [s; MET]
      Trigger Stop: 388004528   [s; MET]
               UTC: 2013-04-18T19:00:53.544240    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 149.043481794784   Dec: 13.6495345491784  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.78
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    9.78

  Flight Position:   [ source = BAT ]
    RA: 149.043481794784   Dec: 13.6495345491784  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 149.046174219361   Dec: 13.6735206031805  [deg; J2000]  
        { 09h 56m 11.1s , +13d 40' 24.7" }
         +/- 1.90746203895237 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.686867603475828 [arcmin] (formal 1-sigma fit error)
    SNR: 12.0911355246573
 
  Angular difference between Flight and Ground position is 1.447699 arcmin
 
  Partial Coding Fraction: 0.8984375    [ including projection effects ]

  Duration
     T90: 274.923999965191 +/- 39.3195305513169
        Measured from: -36.4200000166893
                   to: 238.503999948502     [s; relative to TRIGTIME]
     T50: 142.919999957085 +/- 30.4247480423713
        Measured from: -11.4639999866486
                   to: 131.455999970436     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -37.6759999990463     
                   to: -36.6759999990463     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -40.1719999909401     
                   to: 272.972000002861     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.252580   1.495362   0.522518   0.113974
           0.099321   0.101952   0.089316   0.079598 [error]
 Peak      0.027599   0.036905   0.000270   0.002243
           0.008548   0.008343   0.007472   0.006831 [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 4.17e-07 5.44e-07 5.19e-07 8.80e-07 1.77e-06 2.36e-06   erg/cm2
              Error 5.04e-08 4.77e-08 8.26e-08 2.74e-07 1.88e-07 3.68e-07   erg/cm2
Peak flux Power-law 3.82e-01 2.06e-01 6.94e-02 3.03e-02 6.75e-01 6.88e-01   ph/cm2/s
              Error 1.39e-01 7.39e-02 4.54e-02 3.98e-02 2.13e-01 2.19e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.95e-07 5.93e-07 4.82e-07 2.33e-07 1.62e-06 1.70e-06   erg/cm2
              Error 5.68e-08 6.97e-08 1.06e-07 4.37e-07 2.30e-07 4.89e-07   erg/cm2
Peak flux Cutoff-PL 3.08e-01 3.11e-01 3.82e-02 1.70e-04 6.56e-01 6.57e-01   ph/cm2/s
              Error 2.35e-01 1.14e-01 4.89e-02 5.78e-03 2.04e-01 2.05e-01   ph/cm2/s
 
Fluence        Band 3.85e-07 6.01e-07 4.66e-07 4.82e-07 1.65e-06 1.94e-06   erg/cm2
              Error 5.68e-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    2.067    0.170    -      -           6.11e-04 7.02e-05   62.530 57
CPL   1.295    0.851      36.1   25.5      1.76e-03 3.22e-03   59.760 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.569    0.646    -      -           3.29e-03 1.69e-03   64.170 57
CPL  -1.487    5.318      30.0    0.0      1.28e+00 0.00e+00   59.470 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  313.144  -40.172  272.972
T90   274.924  -36.420  238.504
T50   142.920  -11.464  131.456
Peak    1.000  -37.676  -36.676
  • 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
      149.0462    13.6735   0.0159    23.4622     8.9239         1.3631972     12.091 TRIG_00553847                 
     
    Foreground time interval of the image:
    -12.499  73.301 (delta_t =  85.800 [sec])
    Background time interval of the image:
    

    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)

    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  -40.172 sec. to  272.972 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.06689     ( -0.165508   0.173933 )
    Norm@50keV  : 6.11414E-04    ( -7.08451e-05   6.95453e-05 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          62.53 using 59 PHA bins.
    # Reduced chi-squared =          1.097 for     57 degrees of freedom 
    # Null hypothesis probability =   2.862826e-01
     
    Photon flux (15-150 keV)    in 313.1 sec: 9.46490E-02 ( -0.00817085  0.00817202 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.77335e-06 ( -1.86051e-07  1.90095e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from  -40.172 sec. to  272.972 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.29544     ( -1.00415   0.697811 )
    Epeak [keV] : 36.0581      ( -35.1692 15.9153 )
    Norm@50keV  : 1.76013E-03    ( -0.00109162   0.00534216 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.76 using 59 PHA bins.
    # Reduced chi-squared =          1.067 for     56 degrees of freedom 
    # Null hypothesis probability =   3.406588e-01
     
    Photon flux (15-150 keV)    in 313.1 sec: 9.16265E-02 ( -0.0087058  0.0087085 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.62312e-06 ( -2.19283e-07  2.39932e-07 ) ergs/cm2
     
    
    Band function
    Time interval is from  -40.172 sec. to  272.972 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.29608   ( 1.89921   0.365158 )
    beta        : -10.00000    ( 10   1.42109e-14 )
    Epeak [keV] : 36.0536      ( -8.02713 11.9859 )
    Norm@50keV   : 1.75823E-03    ( -0.000150889   0.00535132 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.76 using 59 PHA bins.
    # Reduced chi-squared =          1.087 for     55 degrees of freedom 
    # Null hypothesis probability =   3.068229e-01
     
    Photon flux (15-150 keV)    in 313.1 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.65373e-06 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 9.33072  (-0.856115  0.945239)
    R^2/D10^2   : 5.69526E-02  (-0.0178884   0.0260008)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          75.07 using 59 PHA bins.
    # Reduced chi-squared =          1.317 for     57 degrees of freedom 
    # Null hypothesis probability =   5.464831e-02
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.076e-07   4.612e-08
    25- 50  6.911e-07   7.561e-08
    50-150  2.941e-07   7.809e-08
    15-150  1.293e-06   1.354e-07
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 56.7434       (-13.0757      19.1879)
    Norm        : 0.507325       (-0.0733716     0.0838751)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.74 using 59 PHA bins.
    # Reduced chi-squared =          1.048 for     57 degrees of freedom 
    # Null hypothesis probability =   3.765229e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.954e-07   4.728e-08
    25- 50  5.913e-07   6.184e-08
    50-150  6.417e-07   1.625e-07
    15-150  1.628e-06   2.189e-07
    
    Double BB
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 7.55360        (      )
    R1^2/D10^2  : 0.110015        (-0.050194      25.2491)
    kT2 [keV]   : 29.5190        (-19.6714      -29.623)
    R2^2/D10^2  : 3.60369E-04    (-0.000336026   0.0491188)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          62.53 using 59 PHA bins.
    #Fit statistic : Chi-Squared =          62.04 using 59 PHA bins.
    # Reduced chi-squared =          1.137 for     55 degrees of freedom 
    # Reduced chi-squared =          1.128 for     55 degrees of freedom 
    # Null hypothesis probability =   2.263642e-01
    # Null hypothesis probability =   2.397374e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.912e-07   1.993e-07
    25- 50  6.052e-07   2.376e-07
    50-150  4.728e-07   2.234e-07
    15-150  1.469e-06   6.182e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from  -37.676 sec. to  -36.676 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.56949     ( -0.558766   0.733163 )
    Norm@50keV  : 3.28866E-03    ( -0.00165737   0.00172448 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          64.17 using 59 PHA bins.
    # Reduced chi-squared =          1.126 for     57 degrees of freedom 
    # Null hypothesis probability =   2.397810e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.674511 ( -0.212472  0.213505 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.34956e-08 ( -1.247e-08  1.37559e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from  -37.676 sec. to  -36.676 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: -1.48739     ( -7.36018   3.27498 )
    Epeak [keV] : 30.0417      (   )
    Norm@50keV  : 1.28321    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.47 using 59 PHA bins.
    # Reduced chi-squared =          1.062 for     56 degrees of freedom 
    # Null hypothesis probability =   3.503472e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.656373 ( -0.203429  0.204725 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.02599e-08 ( -9.5714e-09  1.06704e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from  -37.676 sec. to  -36.676 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 1.96407   ( -2.63643   -1.50158 )
    beta        : -10.0000    ( 10   3.55271e-15 )
    Epeak [keV] : 30.5691      ( -14.4832 8.26331 )
    Norm@50keV   : 2.54107    ( -2.67066   316.051 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.44 using 59 PHA bins.
    # Reduced chi-squared =          1.081 for     55 degrees of freedom 
    # Null hypothesis probability =   3.172651e-01
     
    Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.09465e-08 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 7.75958  (-1.83329  2.21193)
    R^2/D10^2   : 0.940313  (-0.940279   1.86444)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.41 using 59 PHA bins.
    # Reduced chi-squared =          1.042 for     57 degrees of freedom 
    # Null hypothesis probability =   3.879148e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  9.999e-09   6.050e-09
    25- 50  1.659e-08   9.995e-09
    50-150  3.935e-09   3.179e-09
    15-150  3.052e-08   1.918e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 28.9501       (-12.9513      27.4252)
    Norm        : 5.85671       (-2.59205     4.94991)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          61.57 using 59 PHA bins.
    # Reduced chi-squared =          1.080 for     57 degrees of freedom 
    # Null hypothesis probability =   3.160421e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.170e-08   7.205e-09
    25- 50  1.310e-08   7.859e-09
    50-150  6.845e-09   5.909e-09
    15-150  3.165e-08   2.003e-08
    
    Double BB
    R1^2/D10^2  : 5.13841E+05        (      )
    kT2 [keV]   : 8.01916        (-1.91287      2.41103)
    R2^2/D10^2  : 0.797983    (   )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.35 using 59 PHA bins.
    #Fit statistic : Chi-Squared =          58.92 using 59 PHA bins.
    #Fit statistic : Chi-Squared =          58.89 using 59 PHA bins.
    # Reduced chi-squared =          1.079 for     55 degrees of freedom 
    # Reduced chi-squared =          1.071 for     55 degrees of freedom 
    # Reduced chi-squared =          1.071 for     55 degrees of freedom 
    # Null hypothesis probability =   3.200940e-01
    # Null hypothesis probability =   3.341389e-01
    # Null hypothesis probability =   3.352782e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.029e-08   6.395e-09
    25- 50  1.642e-08   1.025e-08
    50-150  3.981e-09   2.993e-09
    15-150  3.069e-08   1.910e-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: 2.16828     ( -0.240454   0.262313 )
    Norm@50keV  : 7.14650E-04    ( -0.000136279   0.000134101 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          68.68 using 59 PHA bins.
    # Reduced chi-squared =          1.205 for     57 degrees of freedom 
    # Null hypothesis probability =   1.381200e-01
     
    Photon flux (15-150 keV)    in 85.8 sec: 0.116374 ( -0.0154155  0.015419 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.74047e-07 ( -9.44933e-08  9.83054e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.198905     ( -1.80766   1.32 )
    Epeak [keV] : 33.9948      ( -9.55013 6.33096 )
    Norm@50keV  : 1.17518E-02    ( -0.0121175   0.155333 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          61.29 using 59 PHA bins.
    # Reduced chi-squared =          1.095 for     56 degrees of freedom 
    # Null hypothesis probability =   2.918665e-01
     
    Photon flux (15-150 keV)    in 85.8 sec: 0.111382 ( -0.0153005  0.015411 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 4.92863e-07 ( -8.293e-08  9.65988e-08 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -0.133386   ( -1.52441   1.55057 )
    beta        : -9.97501    ( 9.89805   19.898 )
    Epeak [keV] : 33.9225      ( -5.90432 7.47373 )
    Norm@50keV   : 1.29818E-02    ( -0.00168164   0.827972 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          61.30 using 59 PHA bins.
    # Reduced chi-squared =          1.115 for     55 degrees of freedom 
    # Null hypothesis probability =   2.604245e-01
     
    Photon flux (15-150 keV)    in 85.8 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)  = 5.44e-07
    S(50-100 keV) = 5.19e-07
    

    T90 vs. Hardness ratio plot

    T90                                   = 274.923999965191 sec.
    Hardness ratio (energy fluence ratio) = 0.954044
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.19383
    Count Ratio (50-100 keV) / (15-25 keV) = 0.417153
    

    Mask shadow pattern

    IMX = 4.287745920250035E-01, IMY = -6.732734992307260E-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:
     
    

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

    Time interval of the image:
    -12.499400 73.300640
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.5463 -40.4666   21.7  32.7  173.3   0.0726   0.5    5.3	Vela X-1                      
    166.4303   8.2186    2.5  30.8   45.5   0.7249   4.5 ------	UNKNOWN                       
    151.3353 -36.7568    2.1  30.4  148.9   0.7712   5.5 ------	UNKNOWN                       
    149.0462  13.6735    1.0  23.5    8.9   1.3635  12.1 ------	UNKNOWN                       
    125.5357 -49.0590    2.5  42.8 -179.1   0.8027   4.6 ------	UNKNOWN                       
    140.8554  33.3967    2.1  41.5  -12.3   0.8435   5.5 ------	UNKNOWN                       
    111.9364 -48.7412    2.3  47.1 -168.0   1.0332   5.0 ------	UNKNOWN                       
    118.4669 -31.8436    3.1  31.2 -155.9   0.4318   3.7 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    118.900600 353.900600
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.5180 -40.3947    9.7  55.5  172.2   1.3643   1.3    9.6	Vela X-1                      
    151.6856 -33.8839    2.1  47.6  156.7   3.5804   5.5 ------	UNKNOWN                       
    175.5517  25.1485    2.6  27.4   41.0   1.0712   4.5 ------	UNKNOWN                       
    140.9335 -13.0569    3.2  27.9  176.8   0.7285   3.7 ------	UNKNOWN                       
    149.0096  13.6880    1.9   0.0  -66.8   1.0519   6.0 ------	UNKNOWN                       
    108.4854 -30.3136    3.7  58.8 -159.3   4.6528   3.1 ------	UNKNOWN                       
    111.3081  49.5002    3.7  47.3  -53.0   3.1853   3.1 ------	UNKNOWN                       
    
    Plot creation:
    Sat May 30 17:10:34 EDT 2015