batgrbproduct Analysis for Trigger=572742

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Jun 10 14:37:59 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger572742
======================================================================

  Trigger: 00572742      Segment: 000

  BAT Trigger Time: 402404079.616   [s; MET]
      Trigger Stop: 402404080.64   [s; MET]
               UTC: 2013-10-02T10:54:28.514160    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 75.0612139371135   Dec: -75.7266590313801  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    6.78
     Image Trigger?:     NO
     Rate S/N Ratio:     12.6095202129185  [ if not an image trigger ]
     Image S/N Ratio:    6.78

  Flight Position:   [ source = BAT ]
    RA: 75.0612139371135   Dec: -75.7266590313801  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 75.1323840259489   Dec: -75.7001501206117  [deg; J2000]  
        { 05h 00m 31.8s , -75d 42' 00.5" }
         +/- 1.17930828111662 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.460652229334899 [arcmin] (formal 1-sigma fit error)
    SNR: 24.0322037226857
 
  Angular difference between Flight and Ground position is 1.907938 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 52 +/- 11.1803398874989
        Measured from: -4.61599999666214
                   to: 47.3840000033379     [s; relative to TRIGTIME]
     T50: 17 +/- 5.3851648071345
        Measured from: 1.38400000333786
                   to: 18.3840000033379     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 5.38400000333786     
                   to: 6.38400000333786     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -5.61599999666214     
                   to: 57.3840000033379     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.699240   0.692114   0.220605   0.030138
           0.042147   0.042990   0.036458   0.033270 [error]
 Peak      0.035090   0.026621   0.009293   0.008119
           0.005418   0.005624   0.004667   0.004180 [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 2.11e-07 2.50e-07 2.14e-07 3.12e-07 7.86e-07 9.87e-07   erg/cm2
              Error 2.16e-08 1.98e-08 3.17e-08 8.84e-08 7.29e-08 1.28e-07   erg/cm2
Peak flux Power-law 2.96e-01 1.94e-01 8.25e-02 4.81e-02 5.96e-01 6.20e-01   ph/cm2/s
              Error 7.37e-02 4.29e-02 3.40e-02 3.62e-02 1.22e-01 1.32e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.95e-07 2.86e-07 1.77e-07 3.80e-08 6.89e-07 6.96e-07   erg/cm2
              Error 2.42e-08 2.80e-08 4.29e-08 5.62e-08 7.79e-08 9.33e-08   erg/cm2
Peak flux Cutoff-PL 2.91e-01 2.40e-01 3.24e-02 3.00e-04 5.64e-01 5.64e-01   ph/cm2/s
              Error 8.14e-02 6.74e-02 5.14e-02 3.40e-02 1.20e-01 1.20e-01   ph/cm2/s
 
Fluence        Band 1.93e-07 2.85e-07 1.75e-07 7.12e-08 6.96e-07 7.28e-07   erg/cm2
              Error -------- -------- -------- 1.07e-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    2.225    0.152    -      -           1.32e-03 1.42e-04   58.680 57
CPL   0.894    0.841      31.0    7.9      8.68e-03 1.60e-02   48.940 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.232    0.409    -      -           3.54e-03 1.12e-03   47.820 57
CPL   0.014    4.431      27.8    0.0      1.18e-01 0.00e+00   45.930 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: 11.264000 sec.
T50 in the 50-300 keV band: 6.080000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   63.000   -5.616   57.384
T90    52.000   -4.616   47.384
T50    17.000    1.384   18.384
Peak    1.000    5.384    6.384
  • 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
       75.1324   -75.7002   0.0080     7.3201   -24.8807         1.0601535     24.032 TRIG_00572742                 
     
    Foreground time interval of the image:
     -5.616  12.685 (delta_t =  18.301 [sec])
    Background time interval of the image:
    -739.115 -720.993 (delta_t =  18.123 [sec])
    -239.616  -5.616 (delta_t = 234.000 [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

    8 ms binning

    From T100_start-3 s to T100_start+3 s

    2 ms binning

    From T100_start-1 s to T100_start+1 s

    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   -5.616 sec. to   57.384 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.22542     ( -0.148616   0.155868 )
    Norm@50keV  : 1.32282E-03    ( -0.000143124   0.000141529 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          58.68 using 59 PHA bins.
    # Reduced chi-squared =          1.029 for     57 degrees of freedom 
    # Null hypothesis probability =   4.136654e-01
     
    Photon flux (15-150 keV)    in 63 sec: 0.221967 ( -0.0168779  0.0168817 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 7.86473e-07 ( -7.21268e-08  7.36539e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   -5.616 sec. to   57.384 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.894257     ( -0.912878   0.769336 )
    Epeak [keV] : 30.9686      ( -10.2273 5.488 )
    Norm@50keV  : 8.67915E-03    ( -0.00867915   0.0234209 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          48.94 using 59 PHA bins.
    # Reduced chi-squared =         0.8739 for     56 degrees of freedom 
    # Null hypothesis probability =   7.368643e-01
     
    Photon flux (15-150 keV)    in 63 sec: 0.211473 ( -0.017473  0.017582 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 6.89063e-07 ( -7.33736e-08  8.23347e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   -5.616 sec. to   57.384 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -0.894083   ( -0.247366   3.72535 )
    beta        : -6.81803    ( 3.60495   13.6049 )
    Epeak [keV] : 30.9622      ( -9.58844 5.23429 )
    Norm@50keV   : 8.68133E-03    ( -0.00473677   1.47667 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          48.94 using 59 PHA bins.
    # Reduced chi-squared =         0.8898 for     55 degrees of freedom 
    # Null hypothesis probability =   7.041480e-01
     
    Photon flux (15-150 keV)    in 63 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 6.96251e-07 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 8.58405  (-0.695509  0.755701)
    R^2/D10^2   : 0.184075  (-0.0528969   0.0746417)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          64.72 using 59 PHA bins.
    # Reduced chi-squared =          1.135 for     57 degrees of freedom 
    # Null hypothesis probability =   2.253115e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.620e-07   2.133e-08
    25- 50  3.193e-07   2.712e-08
    50-150  1.052e-07   2.618e-08
    15-150  5.865e-07   5.547e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 43.8544       (-7.88828      12.7922)
    Norm        : 1.35577       (-0.18581     0.220375)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          49.72 using 59 PHA bins.
    # Reduced chi-squared =         0.8723 for     57 degrees of freedom 
    # Null hypothesis probability =   7.421307e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.019e-07   1.906e-08
    25- 50  2.759e-07   2.133e-08
    50-150  2.354e-07   5.629e-08
    15-150  7.132e-07   7.396e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 4.94590        (-1.60815      1.70418)
    R1^2/D10^2  : 0.950134        (-0.579256      3.44388)
    kT2 [keV]   : 12.7198        (-2.60788      5.71122)
    R2^2/D10^2  : 2.66052E-02    (-0.0222357   0.0545747)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          48.59 using 59 PHA bins.
    # Reduced chi-squared =         0.8835 for     55 degrees of freedom 
    # Null hypothesis probability =   7.163835e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.969e-07   1.037e-07
    25- 50  2.820e-07   1.440e-07
    50-150  1.987e-07   1.101e-07
    15-150  6.776e-07   3.067e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from    5.384 sec. to    6.384 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.23165     ( -0.379119   0.438876 )
    Norm@50keV  : 3.53985E-03    ( -0.00112742   0.00111068 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          47.82 using 59 PHA bins.
    # Reduced chi-squared =         0.8390 for     57 degrees of freedom 
    # Null hypothesis probability =   8.015271e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.595959 ( -0.122407  0.122565 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.34382e-08 ( -8.79214e-09  9.42666e-09 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    5.384 sec. to    6.384 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.39749E-02     ( -6.74674   2.11588 )
    Epeak [keV] : 27.8137      (   )
    Norm@50keV  : 0.117898    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.93 using 59 PHA bins.
    # Reduced chi-squared =         0.8202 for     56 degrees of freedom 
    # Null hypothesis probability =   8.293144e-01
     
    Photon flux (15-150 keV)    in 1 sec: 0.563630 ( -0.117765  0.122459 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.52421e-08 ( -6.4684e-09  1.29647e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from    5.384 sec. to    6.384 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 5.00000   ( -6.75227   -5 )
    beta        : -2.83188    ( -3.94877   0.657601 )
    Epeak [keV] : 23.9300      ( -6.27209 4.96045 )
    Norm@50keV   : 1070.88    ( -212.021   6746.82 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          44.25 using 59 PHA bins.
    # Reduced chi-squared =         0.8045 for     55 degrees of freedom 
    # Null hypothesis probability =   8.498895e-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]    : 7.18088  (-1.29402  1.59219)
    R^2/D10^2   : 1.06741  (-0.594861   1.31395)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.92 using 59 PHA bins.
    # Reduced chi-squared =         0.8056 for     57 degrees of freedom 
    # Null hypothesis probability =   8.531870e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  9.073e-09   3.887e-09
    25- 50  1.305e-08   5.157e-09
    50-150  2.369e-09   1.614e-09
    15-150  2.449e-08   8.410e-09
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 37.7106       (-15.1124      33.6017)
    Norm        : 4.06593       (-1.31787     2.14859)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          46.59 using 59 PHA bins.
    # Reduced chi-squared =         0.8173 for     57 degrees of freedom 
    # Null hypothesis probability =   8.360163e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  9.145e-09   2.665e-09
    25- 50  1.172e-08   4.369e-09
    50-150  8.491e-09   5.614e-09
    15-150  2.936e-08   1.001e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 6.75900        (-3.17899      1.5564)
    R1^2/D10^2  : 1.30604        (-0.735396      2.24188)
    kT2 [keV]   : 99.4936        (-99.9277      -99.9277)
    R2^2/D10^2  : 1.17675E-04    (-0.000118028   0.00281483)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          43.32 using 59 PHA bins.
    # Reduced chi-squared =         0.7876 for     55 degrees of freedom 
    # Null hypothesis probability =   8.727696e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  9.301e-09   4.528e-09
    25- 50  1.237e-08   5.994e-09
    50-150  1.296e-08   5.753e-09
    15-150  3.463e-08   1.364e-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: 1.93994     ( -0.113262   0.116301 )
    Norm@50keV  : 3.24935E-03    ( -0.000257715   0.000255448 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          85.93 using 59 PHA bins.
    # Reduced chi-squared =          1.507 for     57 degrees of freedom 
    # Null hypothesis probability =   7.930715e-03
     
    Photon flux (15-150 keV)    in 18.3 sec: 0.474427 ( -0.0310152  0.0310206 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.47051e-07 ( -4.19904e-08  4.25632e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: -0.127768     ( -0.822714   0.70776 )
    Epeak [keV] : 40.5782      ( -3.34196 4.08788 )
    Norm@50keV  : 5.43666E-02    ( -0.0336573   0.114445 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          52.89 using 59 PHA bins.
    # Reduced chi-squared =         0.9444 for     56 degrees of freedom 
    # Null hypothesis probability =   5.934626e-01
     
    Photon flux (15-150 keV)    in 18.3 sec: 0.442926 ( -0.031744  0.0319 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 4.55463e-07 ( -3.9991e-08  4.34918e-08 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 0.397996   ( -0.882493   1.42179 )
    beta        : -3.32833    ( 3.32833   0.743355 )
    Epeak [keV] : 39.2389      ( -5.16124 4.66384 )
    Norm@50keV   : 8.17168E-02    ( -0.0525283   0.697423 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          52.11 using 59 PHA bins.
    # Reduced chi-squared =         0.9474 for     55 degrees of freedom 
    # Null hypothesis probability =   5.858765e-01
     
    Photon flux (15-150 keV)    in 18.3 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 4.73168e-07 ( 0  0 ) ergs/cm2
     
    

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

    S(25-50 keV)  = 2.50e-07
    S(50-100 keV) = 2.14e-07
    

    T90 vs. Hardness ratio plot

    T90                                   = 52 sec.
    Hardness ratio (energy fluence ratio) = 0.856
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 0.989809
    Count Ratio (50-100 keV) / (15-25 keV) = 0.315493
    

    Mask shadow pattern

    IMX = 1.165369622330883E-01, IMY = 5.404684515048148E-02
    

    TIME vs. PHA plot around the trigger time

    TIME vs. DetID plot around the trigger time

    100 us light curve (15-350 keV)

    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:
    -739.115400 -720.992500
    -239.616000 -5.616000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.5329 -40.6743    4.7  41.3 -129.5   1.0005   2.4    7.2	Vela X-1                      
    170.6144 -60.5382   12.3  37.1  -82.9   0.4750   1.0   10.2	Cen X-3                       
    186.9012 -62.8323    5.8  39.7  -70.6  -1.2084  -2.0    7.7	GX 301-2                      
    354.6172 -48.8126    2.8  42.9   44.9   2.4852   4.2 ------	UNKNOWN                       
      7.5188 -52.6826    2.1  35.1   52.1   1.9122   5.4 ------	UNKNOWN                       
    144.3656 -64.2278    1.9  26.0  -94.7   1.5101   6.0 ------	UNKNOWN                       
    

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

    Time interval of the image:
    -5.616000 12.684590
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.5532 -40.6028    5.0  41.4 -129.6   0.2200   2.3    3.1	Vela X-1                      
    170.4622 -60.7423    6.2  36.9  -82.8   0.2034   1.8    8.4	Cen X-3                       
    186.8909 -62.8646   13.7  39.6  -70.6  -0.1124  -0.8    8.6	GX 301-2                      
    319.7993 -49.0019    2.1  53.7   18.0   1.2726   5.4 ------	UNKNOWN                       
     75.1324 -75.7002    0.5   7.3  -24.9   1.0603  24.0 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    41.484590 422.694000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.4787 -40.5290   13.0  43.8 -130.7   0.3260   0.9    2.7	Vela X-1                      
    170.6351 -60.5639    6.0  33.7  -85.5  -0.5398  -1.9   10.1	Cen X-3                       
    186.6359 -62.8065    3.8  34.9  -71.6   0.9328   3.0    2.2	GX 301-2                      
     69.7907 -24.3410    2.3  51.5  150.3   4.2230   5.0 ------	UNKNOWN                       
    351.3993 -58.0669    2.0  33.2   50.2   1.4882   5.7 ------	UNKNOWN                       
     95.4046 -19.6282    2.6  57.1  179.4   4.3567   4.4 ------	UNKNOWN                       
     75.2974 -75.6897    2.3   0.1 -150.5   0.7141   5.0 ------	UNKNOWN                       
    180.8817 -54.7571    2.4  41.2  -81.1   2.7606   4.7 ------	UNKNOWN                       
    
    Plot creation:
    Wed Jun 10 14:54:06 EDT 2015