batgrbproduct analysis for trigger=668689

batgrbproduct Analysis for Trigger=668689

Analysis Summary

Notes:

1) No attempt has been made to eliminate the non-significant decimal places.
2) This batgrbproduct analysis is done using the HEASARC data.
3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Mar 13 21:55:09 EDT 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger668689
======================================================================

  Trigger: 00668689      Segment: 000

  BAT Trigger Time: 473064643.584   [s; MET]
      Trigger Stop: 473064644.096   [s; MET]
               UTC: 2015-12-29T06:50:27.963280    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 329.379608251525   Dec: -20.7287933382282  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    17.29
     Image Trigger?:     NO
     Rate S/N Ratio:     61.3595958265698  [ if not an image trigger ]
     Image S/N Ratio:    17.29

  Flight Position:   [ source = BAT ]
    RA: 329.379608251525   Dec: -20.7287933382282  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 329.364113346494   Dec: -20.7320490922243  [deg; J2000]  
        { 21h 57m 27.4s , -20d 43' 55.4" }
         +/- 1.0313220661912 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.357623439046106 [arcmin] (formal 1-sigma fit error)
    SNR: 29.106075488414
 
  Angular difference between Flight and Ground position is 0.891176 arcmin
 
  Partial Coding Fraction: 0.515625    [ including projection effects ]

  Duration
     T90: 1.43999993801117 +/- 0.447146548280103
        Measured from: -0.0519999861717224
                   to: 1.38799995183945     [s; relative to TRIGTIME]
     T50: 0.607999980449677 +/- 0.0804984237327102
        Measured from: 0.139999985694885
                   to: 0.747999966144562     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.111999988555908     
                   to: 0.888000011444092     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.111999988555908     
                   to: 2.34399998188019     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.317135   0.399044   0.239992   0.044799
           0.017669   0.018918   0.015941   0.011435 [error]
 Peak      0.248873   0.320256   0.208133   0.039730
           0.013449   0.014740   0.012565   0.008356 [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 1.12e-07 1.67e-07 1.87e-07 3.93e-07 5.85e-07 8.60e-07   erg/cm2
              Error 1.01e-08 9.57e-09 1.56e-08 6.78e-08 3.68e-08 8.21e-08   erg/cm2
Peak flux Power-law 2.76e+00 2.41e+00 1.44e+00 1.30e+00 7.17e+00 7.92e+00   ph/cm2/s
              Error 2.47e-01 1.35e-01 1.06e-01 1.90e-01 4.00e-01 4.25e-01   ph/cm2/s
 
Fluence   Cutoff-PL -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux Cutoff-PL 2.62e+00 2.48e+00 1.48e+00 9.29e-01 7.08e+00 7.51e+00   ph/cm2/s
              Error 2.92e-01 1.60e-01 1.16e-01 3.78e-01 4.14e-01 5.78e-01   ph/cm2/s
 
Fluence        Band 1.11e-07 1.76e-07 1.91e-07 3.19e-07 5.67e-07 2.48e-07   erg/cm2
              Error 7.61e-09 1.14e-08 1.29e-08 5.57e-08 3.64e-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    1.843    0.102    -      -           2.59e-02 1.61e-03   48.280 57
CPL   1.442    0.413      65.9  166.9      4.22e-02 2.21e-02   45.220 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.739    0.095    -      -           5.33e-02 3.04e-03   60.320 57
CPL   1.442    0.359      92.4  -32.1      7.57e-02 3.31e-02   58.250 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: 0.960000 sec.
T50 in the 50-300 keV band: 0.448000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    2.456   -0.112    2.344
T90     1.440   -0.052    1.388
T50     0.608    0.140    0.748
Peak    1.000   -0.112    0.888

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
  329.3641   -20.7320   0.0066    32.4304  -125.2401         1.0129360     29.106 TRIG_00668689                 
 
Foreground time interval of the image:
 -0.112   2.344 (delta_t =   2.456 [sec])
Background time interval of the image:
-239.584  -0.112 (delta_t = 239.472 [sec])

Lightcurves

Notes:

1) The mask-weighted light curves are using the flight position.
2) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
3) For all the mask-weighted lightcurves, the y-axis units are counts/sec/det where a det is 0.4 x 0.4 = 0.16 sq cm.
4) The verticle lines correspond to following: green dotted lines are T50 interval, black dotted lines are T90 interval, blue solid line(s) is a spacecraft slew start time, and orange solid line(s) is a spacecraft slew end time.
5) Time of each bin is in the middle of the bin.

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 0.512000

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 0.512000

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 0.512000

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:

1) The fitting includes the systematic errors.
2) When the burst includes telescope slew time periods, the fitting uses an average response file made from multiple 5-s response files through out the slew time plus single time preiod for the non-slew times, and weighted by the total counts in the corresponding time period using addrmf. An average response file is needed becuase a spectral fit using the pre-slew DRM will introduce some errors in both a spectral shape and a normalization if the PHA file contains a lot of the slew/post-slew time interval.
3) For fits to more complicated models (e.g. a power-law over a cutoff power-law), the BAT team has decided to require a chi-square improvement of more than 6 for each extra dof.

Time averaged spectrum fit using the average DRM

Power-law model

Time interval is from   -0.112 sec. to    2.344 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.84350     ( -0.101262   0.103269 )
Norm@50keV  : 2.59169E-02    ( -0.00161851   0.00160506 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.28 using 59 PHA bins.
# Reduced chi-squared =         0.8471 for     57 degrees of freedom 
# Null hypothesis probability =   7.878170e-01
 
Photon flux (15-150 keV)    in 2.456 sec: 3.63351 ( -0.21256  0.21287 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.85422e-07 ( -3.66924e-08  3.68903e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.112 sec. to    2.344 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.44228     ( -0.433588   0.392709 )
Epeak [keV] : 65.8784      ( -15.0478 318.777 )
Norm@50keV  : 4.21836E-02    ( -0.015645   0.0285589 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.22 using 59 PHA bins.
# Reduced chi-squared =         0.8076 for     56 degrees of freedom 
# Null hypothesis probability =   8.480057e-01
 
Photon flux (15-150 keV)    in 2.456 sec: 3.56548 ( -0.22258  0.22262 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2

Band function

Time interval is from   -0.112 sec. to    2.344 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.24147   ( -0.299497   1.42012 )
beta        : -2.08349    ( 2.09203   0.27683 )
Epeak [keV] : 52.7515      ( -28.8665 265.543 )
Norm@50keV   : 5.65996E-02    ( -0.022332   3617.4 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.14 using 59 PHA bins.
# Reduced chi-squared =         0.8208 for     55 degrees of freedom 
# Null hypothesis probability =   8.258831e-01
 
Photon flux (15-150 keV)    in 2.456 sec: 3.63351 ( -0.21256  0.21287 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.67881e-07 ( -3.22345e-08  4.06156e-08 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 12.0307  (  )
R^2/D10^2   : 0.843786  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         115.93 using 59 PHA bins.
# Reduced chi-squared =         2.0339 for     57 degrees of freedom 
# Null hypothesis probability =   6.643594e-06
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.345e-08   6.017e-09
25- 50  2.003e-07   1.300e-08
50-150  1.746e-07   2.327e-08
15-150  4.384e-07   2.972e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 97.1376       (-17.9389      25.112)
Norm        : 16.0637       (-1.31805     1.47176)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.53 using 59 PHA bins.
# Reduced chi-squared =         0.7987 for     57 degrees of freedom 
# Null hypothesis probability =   8.628003e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.031e-07   1.013e-08
25- 50  1.772e-07   1.227e-08
50-150  2.825e-07   8.427e-08
15-150  5.628e-07   9.050e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.35788        (-1.19167      1.29273)
R1^2/D10^2  : 6.11280        (-2.83452      6.92268)
kT2 [keV]   : 21.7766        (-3.71611      6.00026)
R2^2/D10^2  : 6.76702E-02    (-0.0415646   0.0779567)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.52 using 59 PHA bins.
# Reduced chi-squared =         0.8640 for     55 degrees of freedom 
# Null hypothesis probability =   7.529410e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.019e-07   1.938e-08
25- 50  1.754e-07   2.569e-08
50-150  2.842e-07   7.440e-08
15-150  5.615e-07   1.217e-07

Peak spectrum fit

Power-law model

Time interval is from   -0.112 sec. to    0.888 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.73897     ( -0.0942726   0.0956826 )
Norm@50keV  : 5.32515E-02    ( -0.00304953   0.00303204 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.32 using 59 PHA bins.
# Reduced chi-squared =          1.058 for     57 degrees of freedom 
# Null hypothesis probability =   3.565723e-01
 
Photon flux (15-150 keV)    in 1 sec: 7.17176 ( -0.39926  0.39981 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.91768e-07 ( -2.91101e-08  2.92467e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.112 sec. to    0.888 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.44246     ( -0.383196   0.334804 )
Epeak [keV] : 92.3781      ( -28.2381 -92.3782 )
Norm@50keV  : 7.56999E-02    ( -0.0238594   0.0423383 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.25 using 59 PHA bins.
# Reduced chi-squared =          1.040 for     56 degrees of freedom 
# Null hypothesis probability =   3.925411e-01
 
Photon flux (15-150 keV)    in 1 sec: 7.07773 ( -0.41435  0.41445 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.82225e-07 ( -3.15328e-08  3.14164e-08 ) ergs/cm2

Band function

Time interval is from   -0.112 sec. to    0.888 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.95950   ( -7.47981   -4.9595 )
beta        : -1.79342    ( -0.107425   0.103862 )
Epeak [keV] : 22.2492      ( -4.60897 3.31685 )
Norm@50keV   : 1.33611E+04    ( -715.6   108629 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.36 using 59 PHA bins.
# Reduced chi-squared =          1.043 for     55 degrees of freedom 
# Null hypothesis probability =   3.878038e-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]    : 12.9979  (  )
R^2/D10^2   : 1.27880  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         145.07 using 59 PHA bins.
# Reduced chi-squared =         2.5451 for     57 degrees of freedom 
# Null hypothesis probability =   1.277969e-09
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.582e-08   4.630e-09
25- 50  1.578e-07   1.065e-08
50-150  1.685e-07   2.160e-08
15-150  3.721e-07   2.450e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 129.461       (-27.9959      34.5274)
Norm        : 29.8048       (-1.98949     2.33859)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.79 using 59 PHA bins.
# Reduced chi-squared =          1.031 for     57 degrees of freedom 
# Null hypothesis probability =   4.096360e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.735e-08   7.025e-09
25- 50  1.402e-07   1.105e-08
50-150  2.594e-07   7.970e-08
15-150  4.769e-07   8.820e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.48220        (-1.09222      1.2456)
R1^2/D10^2  : 10.9941        (-4.95315      10.5816)
kT2 [keV]   : 23.6558        (-3.71023      5.80815)
R2^2/D10^2  : 0.108851    (-0.0615663   0.104022)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.21 using 59 PHA bins.
# Reduced chi-squared =          1.095 for     55 degrees of freedom 
# Null hypothesis probability =   2.929187e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.892e-08   1.582e-08
25- 50  1.399e-07   2.160e-08
50-150  2.604e-07   5.815e-08
15-150  4.792e-07   8.215e-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: 1.84350     ( -0.101262   0.103269 )
Norm@50keV  : 2.59169E-02    ( -0.00161851   0.00160506 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.28 using 59 PHA bins.
# Reduced chi-squared =         0.8471 for     57 degrees of freedom 
# Null hypothesis probability =   7.878170e-01
 
Photon flux (15-150 keV)    in 2.456 sec: 3.63337 ( -0.212602  0.212783 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.85326e-07 ( -3.67093e-08  3.68965e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.44228     ( -0.433588   0.392709 )
Epeak [keV] : 65.8783      ( -15.0478 318.777 )
Norm@50keV  : 4.21836E-02    ( -0.015645   0.0285589 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.22 using 59 PHA bins.
# Reduced chi-squared =         0.8076 for     56 degrees of freedom 
# Null hypothesis probability =   8.480057e-01
 
Photon flux (15-150 keV)    in 2.456 sec: 3.56481 ( -0.22247  0.22253 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.68365e-07 ( -4.06026e-08  4.05707e-08 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.24147   ( -0.299497   1.42012 )
beta        : -2.08349    ( 2.09203   0.27683 )
Epeak [keV] : 52.7515      ( -28.8692 265.544 )
Norm@50keV   : 5.65996E-02    ( -0.022332   3617.68 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.14 using 59 PHA bins.
# Reduced chi-squared =         0.8208 for     55 degrees of freedom 
# Null hypothesis probability =   8.258831e-01
 
Photon flux (15-150 keV)    in 2.456 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)  = 1.67e-07
S(50-100 keV) = 1.87e-07

T90 vs. Hardness ratio plot

T90                                   = 1.43999993801117 sec.
Hardness ratio (energy fluence ratio) = 1.11976

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.25828
Count Ratio (50-100 keV) / (15-25 keV) = 0.75675

Mask shadow pattern

IMX = -3.666079264543144E-01, IMY = 5.189278748372695E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000

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:
-239.584000 -0.112000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
299.5925  35.2126    0.7  49.1  -21.9   7.6840  16.6    0.7	Cyg X-1                       
308.1028  40.9470    2.3  46.0  -10.7   1.8895   4.9    0.5	Cyg X-3                       
326.1727  38.3045   21.7  34.4    1.9   0.1464   0.5    1.0	Cyg X-2

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

Time interval of the image:
-0.112000 2.344000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
299.6065  35.1644   10.7  49.1  -22.0  -0.0596  -1.1    2.4	Cyg X-1                       
308.0387  40.9510    6.4  46.0  -10.8  -0.0753  -1.8    3.2	Cyg X-3                       
325.9309  38.3725    0.0  34.6    1.7   0.0299   1.1   11.7	Cyg X-2                       
 28.8798 -18.7627    2.7  51.4  149.7   0.4575   4.2 ------	UNKNOWN                       
306.2178  23.1665    2.4  39.6  -35.4   0.1855   4.9 ------	UNKNOWN                       
329.3641 -20.7320    0.4  32.4 -125.2   1.0127  29.1 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
70.716590 768.116600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
288.9179  10.8547    0.0  50.8  -42.1   1.1380   0.4    8.9	GRS 1915+105                  
291.6169  -9.9788    4.0  37.9  -66.1   3.4149   2.9 ------	UNKNOWN                       
284.1919 -58.4621    4.0  49.8 -137.6   6.2010   2.9 ------	UNKNOWN                       
287.8379   9.4193    3.3  50.8  -44.4   9.9568   3.5 ------	UNKNOWN

Plot creation:
Fri Mar 18 13:39:07 EDT 2016