batgrbproduct analysis for trigger=536831

batgrbproduct Analysis for Trigger=536831

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 Jan 12 23:46:54 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger536831
======================================================================

  Trigger: 00536831      Segment: 000

  BAT Trigger Time: 373015959.552   [s; MET]
      Trigger Stop: 373015960.576   [s; MET]
               UTC: 2012-10-27T07:32:29.746680    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 63.6104836572932   Dec: -58.8014814868824  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.88
     Image Trigger?:     NO
     Rate S/N Ratio:     13.8202749610853  [ if not an image trigger ]
     Image S/N Ratio:    7.88

  Flight Position:   [ source = BAT ]
    RA: 63.6104836572932   Dec: -58.8014814868824  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 63.5952048806683   Dec: -58.8334460657927  [deg; J2000]  
        { 04h 14m 22.8s , -58d 50' 00.4" }
         +/- 0.908337518372024 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.318947753563983 [arcmin] (formal 1-sigma fit error)
    SNR: 34.8951574009833
 
  Angular difference between Flight and Ground position is 1.975737 arcmin
 
  Partial Coding Fraction: 0.8046875    [ including projection effects ]

  Duration
     T90: 80.0879999399185 +/- 40.7568951405407
        Measured from: -4.54799997806549
                   to: 75.539999961853     [s; relative to TRIGTIME]
     T50: 39.9239999651909 +/- 6.52294532357254
        Measured from: 3.37999999523163
                   to: 43.3039999604225     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 2     
                   to: 3     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -9.33999997377396     
                   to: 135.356000006199     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.355095   1.537651   0.921238   0.205047
           0.066073   0.068031   0.059614   0.051341 [error]
 Peak      0.058193   0.057845   0.035330   0.013256
           0.006494   0.006802   0.006068   0.004820 [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 4.10e-07 6.22e-07 7.08e-07 1.54e-06 2.20e-06 3.28e-06   erg/cm2
              Error 3.56e-08 3.33e-08 5.87e-08 2.67e-07 1.35e-07 3.18e-07   erg/cm2
Peak flux Power-law 4.76e-01 4.34e-01 2.73e-01 2.63e-01 1.29e+00 1.45e+00   ph/cm2/s
              Error 9.85e-02 5.49e-02 5.15e-02 1.02e-01 1.62e-01 1.85e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.97e-07 6.38e-07 7.10e-07 1.03e-06 2.15e-06 2.78e-06   erg/cm2
              Error 4.12e-08 4.14e-08 6.10e-08 5.25e-07 1.59e-07 5.75e-07   erg/cm2
Peak flux Cutoff-PL 4.87e-01 4.35e-01 2.67e-01 2.48e-01 1.30e+00 1.44e+00   ph/cm2/s
              Error 9.76e-02 5.54e-02 5.21e-02 1.17e-01 1.62e-01 1.89e-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    1.813    0.102    -      -           1.65e-03 9.87e-05   45.290 57
CPL   1.580    0.377      82.5  -25.0      2.20e-03 1.03e-03   44.200 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.667    0.243    -      -           9.85e-03 1.38e-03   57.560 57
CPL   1.666    0.245    10000.0    0.0      9.86e-03 0.00e+00   57.570 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: 26.816000 sec.
T50 in the 50-300 keV band: 11.264000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  144.696   -9.340  135.356
T90    80.088   -4.548   75.540
T50    39.924    3.380   43.304
Peak    1.000    2.000    3.000

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
   63.5952   -58.8334   0.0055    23.6638   156.4310         2.0164599     34.895 TRIG_00536831                 
 
Foreground time interval of the image:
 -9.340  11.749 (delta_t =  21.089 [sec])
Background time interval of the image:
-239.552  -9.340 (delta_t = 230.212 [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 1.024000

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 1.024000

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 1.024000

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:

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   -9.340 sec. to  135.356 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.81330     ( -0.101532   0.103223 )
Norm@50keV  : 1.65202E-03    ( -9.91706e-05   9.82527e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.29 using 59 PHA bins.
# Reduced chi-squared =         0.7946 for     57 degrees of freedom 
# Null hypothesis probability =   8.683033e-01
 
Photon flux (15-150 keV)    in 144.7 sec: 0.228830 ( -0.012449  0.0124655 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.19973e-06 ( -1.33999e-07  1.35162e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from   -9.340 sec. to  135.356 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.58020     ( -0.413449   0.340549 )
Epeak [keV] : 82.4600      ( -32.3782 -82.4624 )
Norm@50keV  : 2.20389E-03    ( -0.000627014   0.00143364 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.20 using 59 PHA bins.
# Reduced chi-squared =         0.7893 for     56 degrees of freedom 
# Null hypothesis probability =   8.728695e-01
 
Photon flux (15-150 keV)    in 144.7 sec: 0.225731 ( -0.013379  0.013373 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.14759e-06 ( -1.58577e-07  1.58938e-07 ) ergs/cm2

Band function

Time interval is from   -9.340 sec. to  135.356 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.609348   ( 1.07028   6.06021 )
beta        : -1.90329    ( 1.90061   0.150828 )
Epeak [keV] : 34.4922      ( -34.4725 124.823 )
Norm@50keV   : 1.07998E-02    ( -0.0112625   208.196 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.19 using 59 PHA bins.
# Reduced chi-squared =         0.7852 for     55 degrees of freedom 
# Null hypothesis probability =   8.757301e-01
 
Photon flux (15-150 keV)    in 144.7 sec: 0.224697 ( 6.7753  -0.013464 ) 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]    : 11.7132  (  )
R^2/D10^2   : 5.74357E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         127.18 using 59 PHA bins.
# Reduced chi-squared =         2.2312 for     57 degrees of freedom 
# Null hypothesis probability =   2.854308e-07
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.406e-07   2.388e-08
25- 50  7.357e-07   4.804e-08
50-150  5.970e-07   8.718e-08
15-150  1.573e-06   9.984e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 99.9900       (-18.8314      28.5375)
Norm        : 0.999538       (-0.0787609     0.0857148)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.50 using 59 PHA bins.
# Reduced chi-squared =         0.7983 for     57 degrees of freedom 
# Null hypothesis probability =   8.633471e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.780e-07   3.740e-08
25- 50  6.537e-07   4.298e-08
50-150  1.059e-06   3.084e-07
15-150  2.091e-06   3.314e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.19834        (-0.92295      1.0108)
R1^2/D10^2  : 0.433141        (-0.179117      0.356072)
kT2 [keV]   : 22.5758        (-3.64263      5.58653)
R2^2/D10^2  : 3.85095E-03    (-0.00215035   0.00377469)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.26 using 59 PHA bins.
# Reduced chi-squared =         0.7865 for     55 degrees of freedom 
# Null hypothesis probability =   8.740694e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.867e-07   7.090e-08
25- 50  6.368e-07   9.311e-08
50-150  1.099e-06   2.934e-07
15-150  2.123e-06   4.390e-07

Peak spectrum fit

Power-law model

Time interval is from    2.000 sec. to    3.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.66714     ( -0.239154   0.24625 )
Norm@50keV  : 9.84652E-03    ( -0.00140378   0.00136352 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.56 using 59 PHA bins.
# Reduced chi-squared =          1.010 for     57 degrees of freedom 
# Null hypothesis probability =   4.544195e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.29307 ( -0.161673  0.161777 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.14244e-08 ( -1.37362e-08  1.40057e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    2.000 sec. to    3.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.66624     ( -0.257123   0.232541 )
Epeak [keV] : 1.00000E+04      (   )
Norm@50keV  : 9.86419E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.57 using 59 PHA bins.
# Reduced chi-squared =          1.028 for     56 degrees of freedom 
# Null hypothesis probability =   4.169215e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.29505 ( -0.16361  0.16062 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.17203e-08 ( -1.39776e-08  1.28687e-08 ) ergs/cm2

Band function

Time interval is from    2.000 sec. to    3.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.99814   ( -4.99814   -4.99814 )
beta        : -1.68281    ( -0.263303   0.246169 )
Epeak [keV] : 18.0875      ( -18.0875 6.48868 )
Norm@50keV   : 9545.30    ( -1184.25   7.98116e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.51 using 59 PHA bins.
# Reduced chi-squared =          1.046 for     55 degrees of freedom 
# Null hypothesis probability =   3.825622e-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]    : 10.5003  (-1.6739  2.26617)
R^2/D10^2   : 0.487353  (-0.250837   0.449387)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          84.50 using 59 PHA bins.
# Reduced chi-squared =          1.483 for     57 degrees of freedom 
# Null hypothesis probability =   1.044741e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.111e-08   2.653e-09
25- 50  2.954e-08   5.980e-09
50-150  1.773e-08   6.055e-09
15-150  5.837e-08   1.159e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 163.598       (-79.4088      -163.57)
Norm        : 5.24501       (-0.707252     0.9488)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.48 using 59 PHA bins.
# Reduced chi-squared =          1.061 for     57 degrees of freedom 
# Null hypothesis probability =   3.513790e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.336e-08   7.385e-09
25- 50  2.507e-08   1.356e-08
50-150  5.124e-08   2.944e-08
15-150  8.968e-08   5.030e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.49374        (-1.64726      1.48996)
R1^2/D10^2  : 1.46320        (-0.776363      1.06929)
kT2 [keV]   : 67.3145        (-35.9507      -67.3718)
R2^2/D10^2  : 1.20294E-03    (-0.00105232   0.00561497)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.96 using 59 PHA bins.
# Reduced chi-squared =         0.9810 for     55 degrees of freedom 
# Null hypothesis probability =   5.145790e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.456e-08   4.791e-09
25- 50  2.553e-08   8.785e-09
50-150  6.070e-08   3.256e-08
15-150  1.008e-07   4.014e-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: 1.61509     ( -0.0901349   0.091011 )
Norm@50keV  : 5.81179E-03    ( -0.000295078   0.000293952 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.06 using 59 PHA bins.
# Reduced chi-squared =         0.8782 for     57 degrees of freedom 
# Null hypothesis probability =   7.308284e-01
 
Photon flux (15-150 keV)    in 21.09 sec: 0.750375 ( -0.0378971  0.0379659 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.14425e-06 ( -6.22632e-08  6.26057e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.24774     ( -0.384737   0.35434 )
Epeak [keV] : 103.315      ( -29.5486 743.892 )
Norm@50keV  : 8.84591E-03    ( -0.00288165   0.00473574 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.92 using 59 PHA bins.
# Reduced chi-squared =         0.8378 for     56 degrees of freedom 
# Null hypothesis probability =   8.010842e-01
 
Photon flux (15-150 keV)    in 21.09 sec: 0.733742 ( -0.040988  0.040999 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.1118e-06 ( -6.99682e-08  7.00336e-08 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.26214   ( -0.340363   0.285541 )
beta        : -9.08616    ( 8.97364   18.9736 )
Epeak [keV] : 106.068      ( -24.0342 58.9965 )
Norm@50keV   : 8.68439E-03    ( -0.000421077   0.00339903 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.93 using 59 PHA bins.
# Reduced chi-squared =         0.8532 for     55 degrees of freedom 
# Null hypothesis probability =   7.723869e-01
 
Photon flux (15-150 keV)    in 21.09 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)  = 6.22e-07
S(50-100 keV) = 7.08e-07

T90 vs. Hardness ratio plot

T90                                   = 80.0879999399185 sec.
Hardness ratio (energy fluence ratio) = 1.13826

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.13472
Count Ratio (50-100 keV) / (15-25 keV) = 0.679833

Mask shadow pattern

IMX = -4.016588797146752E-01, IMY = -1.752219331109239E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000

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:
-239.552000 -9.340000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 35.3181 -49.3406    2.7  25.0  109.6   1.0001   4.3 ------	UNKNOWN                       
106.9755 -45.6353    2.0  48.1 -175.2   2.0386   5.8 ------	UNKNOWN                       
116.6008 -45.8831    3.3  50.5 -167.0   1.5673   3.5 ------	UNKNOWN                       
193.8585 -76.6885    2.7  31.0 -105.3   1.1198   4.3 ------	UNKNOWN                       
266.8881 -50.2341    3.1  47.4  -49.1   2.7053   3.7 ------	UNKNOWN

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

Time interval of the image:
-9.340000 11.748590
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 18.0894 -60.2865    1.8  12.2   85.5   0.3537   6.3 ------	UNKNOWN                       
 93.0072 -42.0901    2.3  47.2  170.4   0.6493   5.1 ------	UNKNOWN                       
 63.5952 -58.8334    0.3  23.7  156.4   2.0162  34.9 ------	UNKNOWN                       
326.3690 -80.8268    3.0  13.2  -74.8   0.2009   3.8 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
56.548600 962.525900
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
135.6216 -40.5576    5.0  47.3 -137.4   3.5452   2.3    4.2	Vela X-1                      
304.6916 -62.9439    2.4  49.6  -26.6   5.3768   4.7 ------	UNKNOWN                       
136.4821 -85.4469    2.9  30.1  -66.8   2.9415   4.0 ------	UNKNOWN                       
127.5491 -20.9934    5.3  58.8 -159.2   9.0016   2.2 ------	UNKNOWN                       
129.2292 -37.8788    4.2  46.1 -144.9   3.1078   2.8 ------	UNKNOWN                       
297.8435 -54.1172    3.7  59.0  -24.4  13.4101   3.1 ------	UNKNOWN                       
295.0151 -58.0749    4.6  56.3  -28.3   6.8874   2.5 ------	UNKNOWN                       
135.9688 -30.5569    5.1  55.3 -145.3  10.7021   2.2 ------	UNKNOWN                       
141.9919 -43.1989    2.7  48.6 -130.3   9.8413   4.2 ------	UNKNOWN

Plot creation:
Sat May 30 18:03:44 EDT 2015