batgrbproduct analysis for trigger=115214

batgrbproduct Analysis for Trigger=115214

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): Wed Jan 22 22:13:48 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger115214
======================================================================

  Trigger: 00115214      Segment: 000

  BAT Trigger Time: 135849159.296   [s; MET]
      Trigger Stop: 135849171.456   [s; MET]
               UTC: 2005-04-22T07:52:39.807480    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 324.454526255759   Dec: 55.7987882060191  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8
     Image Trigger?:     NO
     Rate S/N Ratio:     12.2474487139159  [ if not an image trigger ]
     Image S/N Ratio:    8

  Flight Position:   [ source = BAT ]
    RA: 324.454526255759   Dec: 55.7987882060191  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 324.501239345773   Dec: 55.7877289051303  [deg; J2000]  
        { 21h 38m 00.3s , +55d 47' 15.8" }
         +/- 1.85772367388165 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.885146190185677 [arcmin] (formal 1-sigma fit error)
    SNR: 12.5562410194054
 
  Angular difference between Flight and Ground position is 1.709693 arcmin
 
  Partial Coding Fraction: 0.9453125    [ including projection effects ]

  Duration
     T90: 80 +/- 22.6274169979695
        Measured from: -11.2960000038147
                   to: 68.7039999961853     [s; relative to TRIGTIME]
     T50: 48 +/- 16
        Measured from: 4.7039999961853
                   to: 52.7039999961853     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 60.2039999961853     
                   to: 61.2039999961853     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -11.2960000038147     
                   to: 68.7039999961853     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.289943   0.315488   0.292478   0.017629
           0.039190   0.040360   0.034604   0.028776 [error]
 Peak      0.015546   0.009816   0.006304   0.000805
           0.004389   0.004546   0.003939   0.003262 [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 7.33e-08 1.43e-07 2.16e-07 7.06e-07 6.06e-07 1.14e-06   erg/cm2
              Error 1.50e-08 1.81e-08 3.33e-08 2.34e-07 8.21e-08 2.59e-07   erg/cm2
Peak flux Power-law 1.13e-01 9.00e-02 4.83e-02 3.78e-02 2.69e-01 2.89e-01   ph/cm2/s
              Error 6.24e-02 3.52e-02 3.25e-02 5.69e-02 1.03e-01 1.17e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.45e-08 1.54e-07 2.26e-07 2.68e-07 5.75e-07 7.12e-07   erg/cm2
              Error 1.82e-08 2.25e-08 3.78e-08 3.39e-07 8.91e-08 3.54e-07   erg/cm2
Peak flux Cutoff-PL 1.16e-01 8.98e-02 4.66e-02 3.49e-02 2.68e-01 2.88e-01   ph/cm2/s
              Error 6.27e-02 3.90e-02 4.10e-02 5.67e-02 1.03e-01 1.16e-01   ph/cm2/s
 
Fluence        Band 6.51e-08 1.51e-07 2.26e-07 3.19e-07 5.85e-07 7.74e-07   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    1.406    0.204    -      -           7.84e-04 9.55e-05   42.170 57
CPL   0.668    0.923      91.6  -31.6      1.83e-03 2.49e-03   39.920 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.898    0.854    -      -           1.87e-03 1.40e-03   50.920 57
CPL   1.901    0.000    9996.6    0.0      1.87e-03 0.00e+00   50.920 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: 75.712000 sec.
T50 in the 50-300 keV band: 48.896000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   80.000  -11.296   68.704
T90    80.000  -11.296   68.704
T50    48.000    4.704   52.704
Peak    1.000   60.204   61.204

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
  324.5012    55.7877   0.0153    19.1736   -35.1029         0.8787404     12.556 TRIG_00115214                 
 
Foreground time interval of the image:
-11.296  58.205 (delta_t =  69.501 [sec])
Background time interval of the image:
-299.296 -11.296 (delta_t = 288.000 [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

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)

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  -11.296 sec. to   68.704 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.40580     ( -0.203983   0.204754 )
Norm@50keV  : 7.84418E-04    ( -9.57121e-05   9.53279e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.17 using 59 PHA bins.
# Reduced chi-squared =         0.7398 for     57 degrees of freedom 
# Null hypothesis probability =   9.289614e-01
 
Photon flux (15-150 keV)    in 80 sec: 9.56538E-02 ( -0.0116351  0.0116516 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.05654e-07 ( -8.162e-08  8.2608e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from  -11.296 sec. to   68.704 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.668037     ( -1.03646   0.809143 )
Epeak [keV] : 91.6341      ( -28.3659 -91.634 )
Norm@50keV  : 1.82876E-03    ( -0.00108163   0.00390597 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.92 using 59 PHA bins.
# Reduced chi-squared =         0.7129 for     56 degrees of freedom 
# Null hypothesis probability =   9.485315e-01
 
Photon flux (15-150 keV)    in 80 sec: 9.27102E-02 ( -0.0120457  0.0121438 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.75141e-07 ( -8.8288e-08  8.98512e-08 ) ergs/cm2

Band function

Time interval is from  -11.296 sec. to   68.704 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.668182   ( -0.784794   0.71864 )
beta        : -10.0000    ( 10   5.32907e-15 )
Epeak [keV] : 91.6327      ( -23.7548 -91.6327 )
Norm@50keV   : 1.82836E-03    ( -0.00108091   0.00390642 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.92 using 59 PHA bins.
# Reduced chi-squared =         0.7258 for     55 degrees of freedom 
# Null hypothesis probability =   9.370087e-01
 
Photon flux (15-150 keV)    in 80 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.84571e-07 ( 0  0 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 16.1433  (-2.16085  2.57122)
R^2/D10^2   : 8.75063E-03  (-0.00351137   0.00566034)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.66 using 59 PHA bins.
# Reduced chi-squared =         0.8536 for     57 degrees of freedom 
# Null hypothesis probability =   7.763911e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.764e-08   9.716e-09
25- 50  1.596e-07   2.700e-08
50-150  2.917e-07   6.824e-08
15-150  4.890e-07   8.104e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 0.395033       (-0.0472104     0.047208)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.18 using 59 PHA bins.
# Reduced chi-squared =         0.7400 for     57 degrees of freedom 
# Null hypothesis probability =   9.288105e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.871e-08   4.348e-08
25- 50  1.514e-07   8.372e-08
50-150  3.321e-07   1.824e-07
15-150  5.622e-07   3.090e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.49936        (-2.0996      4.88102)
R1^2/D10^2  : 0.357694        (-0.327872      8.41385)
kT2 [keV]   : 19.6197        (-3.53333      9.01209)
R2^2/D10^2  : 4.05928E-03    (-0.00316919   0.00431876)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.24 using 59 PHA bins.
# Reduced chi-squared =         0.7135 for     55 degrees of freedom 
# Null hypothesis probability =   9.463745e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.902e-08   3.392e-08
25- 50  1.417e-07   5.221e-08
50-150  3.402e-07   1.191e-07
15-150  5.510e-07   1.748e-07

Peak spectrum fit

Power-law model

Time interval is from   60.204 sec. to   61.204 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.89769     ( -0.757643   0.950407 )
Norm@50keV  : 1.87296E-03    ( -0.00187296   0.000917349 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.92 using 59 PHA bins.
# Reduced chi-squared =         0.8933 for     57 degrees of freedom 
# Null hypothesis probability =   7.012840e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.268527 ( -0.103459  0.103487 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.72191e-08 ( -8.26291e-09  9.09622e-09 ) ergs/cm2

Cutoff power-law model

Time interval is from   60.204 sec. to   61.204 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.90078     (     )
Epeak [keV] : 9996.57      (   )
Norm@50keV  : 1.86985E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.92 using 59 PHA bins.
# Reduced chi-squared =         0.9093 for     56 degrees of freedom 
# Null hypothesis probability =   6.670898e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.268131 ( -0.103286  0.103366 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.7274e-08 ( -8.67736e-09  8.8819e-09 ) ergs/cm2

Band function

Time interval is from   60.204 sec. to   61.204 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.35892   ( 1.35605   1.35605 )
beta        : -1.92971    ( 1.92865   0.785082 )
Epeak [keV] : 28.9568      ( -29.2716 -29.2716 )
Norm@50keV   : 4.82762E-03    ( -0.0048716   636644 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.90 using 59 PHA bins.
# Reduced chi-squared =         0.9254 for     55 degrees of freedom 
# Null hypothesis probability =   6.319925e-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]    : 8.35920  (-3.72365  7.98629)
R^2/D10^2   : 0.238315  (-0.235577   2.25047)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.46 using 59 PHA bins.
# Reduced chi-squared =         0.9379 for     57 degrees of freedom 
# Null hypothesis probability =   6.086025e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.105e-09   2.012e-09
25- 50  5.857e-09   4.059e-09
50-150  1.773e-09   1.586e-09
15-150  1.073e-08   7.235e-09

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 82.0892       (-82.0724      -82.0724)
Norm        : 1.24259       (-0.564677     1.66331)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.32 using 59 PHA bins.
# Reduced chi-squared =         0.9003 for     57 degrees of freedom 
# Null hypothesis probability =   6.872203e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.229e-09   2.025e-09
25- 50  5.349e-09   3.425e-09
50-150  7.681e-09   7.000e-09
15-150  1.626e-08   1.182e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.79289        (-5.82026      5.57905)
R1^2/D10^2  : 0.845933        (-0.413892      -0.831412)
kT2 [keV]   : 36.9774        (-37.3543      -37.944)
R2^2/D10^2  : 9.52095E-04    (-0.000910821   0.18435)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.51 using 59 PHA bins.
# Reduced chi-squared =         0.9184 for     55 degrees of freedom 
# Null hypothesis probability =   6.466177e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.757e-09   2.381e-09
25- 50  4.486e-09   2.611e-09
50-150  1.048e-08   7.130e-09
15-150  1.872e-08   9.535e-09

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: 1.23455     ( -0.218209   0.213691 )
Norm@50keV  : 8.01454E-04    ( -0.000101317   0.000101313 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.28 using 59 PHA bins.
# Reduced chi-squared =         0.7944 for     57 degrees of freedom 
# Null hypothesis probability =   8.686375e-01
 
Photon flux (15-150 keV)    in 69.5 sec: 9.45575E-02 ( -0.0123092  0.0123414 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.59752e-07 ( -7.77003e-08  7.84544e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.495770     ( -1.15758   0.872194 )
Epeak [keV] : 106.749      ( -36.6167 -106.747 )
Norm@50keV  : 1.82560E-03    ( -0.00107498   0.004461 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.39 using 59 PHA bins.
# Reduced chi-squared =         0.7748 for     56 degrees of freedom 
# Null hypothesis probability =   8.907560e-01
 
Photon flux (15-150 keV)    in 69.5 sec: 9.16409E-02 ( -0.0128884  0.0128871 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.31943e-07 ( -8.63301e-08  8.64441e-08 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.339902   ( 0.322526   0.322526 )
beta        : -1.82681    ( 1.81552   0.686766 )
Epeak [keV] : 93.4320      ( -92.3785 324.075 )
Norm@50keV   : 2.22058E-03    ( -0.00226578   17.3805 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.17 using 59 PHA bins.
# Reduced chi-squared =         0.7849 for     55 degrees of freedom 
# Null hypothesis probability =   8.761375e-01
 
Photon flux (15-150 keV)    in 69.5 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)  = 1.43e-07
S(50-100 keV) = 2.16e-07

T90 vs. Hardness ratio plot

T90                                   = 80 sec.
Hardness ratio (energy fluence ratio) = 1.51049

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.0881
Count Ratio (50-100 keV) / (15-25 keV) = 1.00874

Mask shadow pattern

IMX = 2.844767274583667E-01, IMY = 1.999549731332068E-01

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:
-299.296000 -11.296000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
299.5876  35.1951    0.4  38.6    5.5   8.0015  32.3    0.4	Cyg X-1                       
308.0878  40.9826    1.0  32.7   -5.7   2.2154  11.0    2.1	Cyg X-3                       
326.1613  38.3176   56.2  36.5  -29.8   0.0458   0.2    0.5	Cyg X-2                       
298.8513  32.0826    2.2  41.8    6.2   1.5023   5.4 ------	UNKNOWN                       
322.9941  32.4149    2.2  42.0  -24.5   1.4604   5.3 ------	UNKNOWN                       
104.3667  46.2937    5.0  59.0 -166.2   3.3620   2.3 ------	UNKNOWN                       
 65.7784  48.9442    3.9  50.6 -136.1   2.7181   3.0 ------	UNKNOWN

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

Time interval of the image:
-11.296000 58.204590
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
299.4486  35.1721   12.1  38.7    5.7   0.1097   0.9    7.2	Cyg X-1                       
307.9398  40.9386   10.8  32.7   -5.5   0.0951   1.1    7.8	Cyg X-3                       
326.2300  38.3448    4.7  36.5  -29.9   0.2500   2.5    3.1	Cyg X-2                       
323.0339  66.9606    2.5   8.5  -50.7   0.3309   4.6 ------	UNKNOWN                       
324.5013  55.7878    0.9  19.2  -35.1   0.8791  12.6 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
98.604600 302.810700
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
299.5910  35.2007    0.3  26.7   36.4   6.0546  37.6    0.1	Cyg X-1                       
308.0921  40.9479    1.0  18.3   29.1   1.6224  12.1    0.9	Cyg X-3                       
326.1551  38.3959   18.8  17.4  -18.0   0.0843   0.6    4.5	Cyg X-2                       
292.7716  65.9850    2.9  18.2  123.3   0.6220   4.0 ------	UNKNOWN                       
332.2976  -2.7094    2.9  58.9  -22.7   4.0241   4.0 ------	UNKNOWN                       
 53.5457  49.4835    2.8  50.6 -136.3   3.1469   4.1 ------	UNKNOWN                       
359.1567  20.7419    4.4  43.5  -64.1   1.9841   2.6 ------	UNKNOWN                       
348.3568   8.6761    3.6  50.8  -44.6   2.6737   3.2 ------	UNKNOWN

Plot creation:
Sun May 31 16:56:08 EDT 2015