batgrbproduct analysis for trigger=537921

batgrbproduct Analysis for Trigger=537921

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 23:31:50 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger537921
======================================================================

  Trigger: 00537921      Segment: 000

  BAT Trigger Time: 374089668.928   [s; MET]
      Trigger Stop: 374089669.952   [s; MET]
               UTC: 2012-11-08T17:47:39.076820    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 83.1858158216827   Dec: 54.4907233392431  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.89
     Image Trigger?:     NO
     Rate S/N Ratio:     12.9228479833201  [ if not an image trigger ]
     Image S/N Ratio:    7.89

  Flight Position:   [ source = BAT ]
    RA: 83.1858158216827   Dec: 54.4907233392431  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 83.2321731033032   Dec: 54.5293066041938  [deg; J2000]  
        { 05h 32m 55.7s , +54d 31' 45.5" }
         +/- 2.37389297059574 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.21320647312007 [arcmin] (formal 1-sigma fit error)
    SNR: 8.84596732348644
 
  Angular difference between Flight and Ground position is 2.822545 arcmin
 
  Partial Coding Fraction: 0.90625    [ including projection effects ]

  Duration
     T90: 89.5479999780655 +/- 47.5364645041382
        Measured from: 0.944000005722046
                   to: 90.4919999837875     [s; relative to TRIGTIME]
     T50: 26.4959999322891 +/- 9.24377933393568
        Measured from: 16.7040000557899
                   to: 43.1999999880791     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 43.188000023365     
                   to: 44.188000023365     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.223999977111816     
                   to: 137.976000010967     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.946279   0.818797   0.273159  -0.052527
           0.067824   0.070062   0.062530   0.059398 [error]
 Peak      0.063645   0.088043   0.041196  -0.001944
           0.006691   0.007078   0.006078   0.005101 [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 2.70e-07 3.08e-07 2.51e-07 3.42e-07 9.54e-07 1.17e-06   erg/cm2
              Error 3.27e-08 3.26e-08 5.12e-08 1.31e-07 1.19e-07 2.00e-07   erg/cm2
Peak flux Power-law 6.32e-01 5.30e-01 3.02e-01 2.55e-01 1.58e+00 1.72e+00   ph/cm2/s
              Error 8.89e-02 5.35e-02 4.65e-02 7.32e-02 1.59e-01 1.79e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.61e-07 3.48e-07 1.90e-07 3.47e-08 8.28e-07 8.33e-07   erg/cm2
              Error 3.52e-08 4.44e-08 7.47e-08 8.47e-08 1.28e-07 1.56e-07   erg/cm2
Peak flux Cutoff-PL 5.64e-01 6.29e-01 2.88e-01 4.63e-02 1.52e+00 1.53e+00   ph/cm2/s
              Error 9.97e-02 7.76e-02 6.08e-02 -------- 1.60e-01 1.66e-01   ph/cm2/s
 
Fluence        Band 2.73e-07 3.26e-07 2.13e-07 2.15e-07 9.00e-07 1.02e-06   erg/cm2
              Error 3.84e-08 3.70e-08 -------- -------- -------- --------   erg/cm2
Peak flux      Band 5.71e-01 6.35e-01 2.73e-01 1.59e-01 1.56e+00 1.64e+00   ph/cm2/s
              Error 1.13e-01 8.63e-02 5.16e-02 -------- 1.62e-01 1.84e-01   ph/cm2/s

 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.294    0.197    -      -           7.23e-04 1.08e-04   72.400 57
CPL   1.012    1.116      26.5   15.1      4.87e-03 1.74e-02   66.600 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.811    0.168    -      -           1.14e-02 1.36e-03   68.580 57
CPL   0.360    0.914      46.0    9.9      8.14e-02 1.65e-01   57.990 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: 25.088000 sec.
T50 in the 50-300 keV band: 17.088000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  138.200   -0.224  137.976
T90    89.548    0.944   90.492
T50    26.496   16.704   43.200
Peak    1.000   43.188   44.188

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
   83.2322    54.5293   0.0218    11.7291    72.6823         0.3395062      8.846 TRIG_00537921                 
 
Foreground time interval of the image:
 -0.224  10.973 (delta_t =  11.197 [sec])
Background time interval of the image:
-239.928  -0.224 (delta_t = 239.704 [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   -0.224 sec. to  137.976 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.29377     ( -0.191197   0.203521 )
Norm@50keV  : 7.22931E-04    ( -0.000108268   0.000107655 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          72.40 using 59 PHA bins.
# Reduced chi-squared =          1.270 for     57 degrees of freedom 
# Null hypothesis probability =   8.217669e-02
 
Photon flux (15-150 keV)    in 138.2 sec: 0.125902 ( -0.0121406  0.0121428 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.53662e-07 ( -1.16439e-07  1.20604e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.224 sec. to  137.976 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.01239     ( -1.27688   0.95438 )
Epeak [keV] : 26.5480      ( -23.3736 6.7711 )
Norm@50keV  : 4.87083E-03    ( -0.00487093   0.0298929 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.60 using 59 PHA bins.
# Reduced chi-squared =          1.189 for     56 degrees of freedom 
# Null hypothesis probability =   1.570557e-01
 
Photon flux (15-150 keV)    in 138.2 sec: 0.121289 ( -0.012265  0.012374 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.2788e-07 ( -1.1672e-07  1.38316e-07 ) ergs/cm2

Band function

Time interval is from   -0.224 sec. to  137.976 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.90736   ( -6.64049   -4.90736 )
beta        : -2.58496    ( -0.330293   0.272552 )
Epeak [keV] : 21.7418      ( -3.49412 2.82945 )
Norm@50keV   : 342.332    ( -32.5753   1002.16 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.42 using 59 PHA bins.
# Reduced chi-squared =          1.189 for     55 degrees of freedom 
# Null hypothesis probability =   1.588037e-01
 
Photon flux (15-150 keV)    in 138.2 sec: 0.120981 ( 6.87902  -0.011845 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.99961e-07 ( 0  0 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 7.59162  (-0.775894  0.867026)
R^2/D10^2   : 0.171751  (-0.06116   0.0954762)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          75.89 using 59 PHA bins.
# Reduced chi-squared =          1.331 for     57 degrees of freedom 
# Null hypothesis probability =   4.787183e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.372e-07   3.863e-08
25- 50  3.784e-07   5.245e-08
50-150  8.336e-08   2.866e-08
15-150  6.990e-07   8.893e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 37.8761       (-8.30411      11.8226)
Norm        : 0.849230       (-0.150567     0.190588)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.81 using 59 PHA bins.
# Reduced chi-squared =          1.172 for     57 degrees of freedom 
# Null hypothesis probability =   1.755535e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.644e-07   3.344e-08
25- 50  3.395e-07   4.015e-08
50-150  2.472e-07   8.506e-08
15-150  8.511e-07   1.160e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.36209        (-1.8245      1.55991)
R1^2/D10^2  : 0.508522        (-0.289247      1.56445)
kT2 [keV]   : 14.5655        (-5.23436      15.3021)
R2^2/D10^2  : 6.86638E-03    (-0.00642177   0.0513285)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.54 using 59 PHA bins.
# Reduced chi-squared =          1.192 for     55 degrees of freedom 
# Null hypothesis probability =   1.562167e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.666e-07   1.224e-07
25- 50  3.370e-07   1.597e-07
50-150  2.429e-07   1.419e-07
15-150  8.465e-07   4.175e-07

Peak spectrum fit

Power-law model

Time interval is from   43.188 sec. to   44.188 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.81051     ( -0.165074   0.171451 )
Norm@50keV  : 1.13885E-02    ( -0.00137086   0.00135201 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.58 using 59 PHA bins.
# Reduced chi-squared =          1.203 for     57 degrees of freedom 
# Null hypothesis probability =   1.400065e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.57575 ( -0.159294  0.159297 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.04805e-07 ( -1.26876e-08  1.29337e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   43.188 sec. to   44.188 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.360390     ( -1.01283   0.815285 )
Epeak [keV] : 45.9702      ( -7.05 12.693 )
Norm@50keV  : 8.13552E-02    ( -0.081356   0.248595 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.99 using 59 PHA bins.
# Reduced chi-squared =          1.036 for     56 degrees of freedom 
# Null hypothesis probability =   4.017270e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.52011 ( -0.16005  0.16074 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.14974e-08 ( -1.28345e-08  1.39966e-08 ) ergs/cm2

Band function

Time interval is from   43.188 sec. to   44.188 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.98884   ( -5.7204   -4.98884 )
beta        : -2.21076    ( -0.386638   0.257326 )
Epeak [keV] : 27.4269      ( -3.63937 3.26712 )
Norm@50keV   : 953.426    ( -94.1258   1423.61 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.81 using 59 PHA bins.
# Reduced chi-squared =          1.015 for     55 degrees of freedom 
# Null hypothesis probability =   4.441069e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.55950 ( 5.4405  -0.16226 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.88514e-08 ( -9.88444e-08  -1.30822e-08 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 10.5324  (-1.11019  1.25615)
R^2/D10^2   : 0.645023  (-0.223053   0.333473)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.45 using 59 PHA bins.
# Reduced chi-squared =          1.166 for     57 degrees of freedom 
# Null hypothesis probability =   1.834513e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.480e-08   2.760e-09
25- 50  3.953e-08   5.225e-09
50-150  2.393e-08   6.500e-09
15-150  7.826e-08   9.420e-09

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 84.1680       (-23.0982      39.8596)
Norm        : 7.42038       (-0.991851     1.16696)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.60 using 59 PHA bins.
# Reduced chi-squared =          1.081 for     57 degrees of freedom 
# Null hypothesis probability =   3.149279e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.931e-08   2.765e-09
25- 50  3.217e-08   3.640e-09
50-150  4.696e-08   2.211e-08
15-150  9.844e-08   2.307e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.87854        (-2.0263      2.18529)
R1^2/D10^2  : 1.96900        (-1.05855      3.42828)
kT2 [keV]   : 18.1656        (-4.45389      15.3905)
R2^2/D10^2  : 5.13784E-02    (-0.0471486   0.183864)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.98 using 59 PHA bins.
# Reduced chi-squared =          1.018 for     55 degrees of freedom 
# Null hypothesis probability =   4.379541e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.808e-08   8.211e-09
25- 50  3.520e-08   1.692e-08
50-150  4.086e-08   2.332e-08
15-150  9.414e-08   4.503e-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: 2.02128     ( -0.309171   0.342697 )
Norm@50keV  : 1.57900E-03    ( -0.000383022   0.000374019 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          80.09 using 59 PHA bins.
# Reduced chi-squared =          1.405 for     57 degrees of freedom 
# Null hypothesis probability =   2.356288e-02
 
Photon flux (15-150 keV)    in 11.2 sec: 0.239200 ( -0.0415901  0.0416151 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.63296e-07 ( -3.59308e-08  3.79346e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.661622     ( -5.15055   2.12736 )
Epeak [keV] : 35.2516      ( -6.9621 10.7321 )
Norm@50keV  : 7.82732E-02    ( -0.0891987   173.599 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          75.08 using 59 PHA bins.
# Reduced chi-squared =          1.341 for     56 degrees of freedom 
# Null hypothesis probability =   4.527531e-02
 
Photon flux (15-150 keV)    in 11.2 sec: 0.221728 ( -0.041778  0.042284 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.25898e-07 ( -2.77389e-08  3.94946e-08 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 2.13539   ( -3.22489   -2.13549 )
beta        : -3.23554    ( 3.23893   0.974964 )
Epeak [keV] : 33.0014      ( -5.65451 7.90403 )
Norm@50keV   : 0.796157    ( -0.810372   30.1388 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          74.22 using 59 PHA bins.
# Reduced chi-squared =          1.349 for     55 degrees of freedom 
# Null hypothesis probability =   4.308906e-02
 
Photon flux (15-150 keV)    in 11.2 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.39262e-07 ( 0  0 ) ergs/cm2

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

S(25-50 keV)  = 3.08e-07
S(50-100 keV) = 2.51e-07

T90 vs. Hardness ratio plot

T90                                   = 89.5479999780655 sec.
Hardness ratio (energy fluence ratio) = 0.814935

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 0.865281
Count Ratio (50-100 keV) / (15-25 keV) = 0.288666

Mask shadow pattern

IMX = 6.180212998763001E-02, IMY = -1.982083967525541E-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:
-239.928000 -0.224000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6312  22.0179    0.8  42.7   46.7  10.2151  14.1    0.2	Crab                          
106.9539  30.6405    3.0  33.6   12.8   1.0657   3.8 ------	UNKNOWN                       
298.2877  57.6475    3.4  57.6 -165.6   3.6545   3.4 ------	UNKNOWN

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

Time interval of the image:
-0.224000 10.972600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6564  22.0237   39.8  42.7   46.6  -0.0385  -0.3    1.4	Crab                          
 83.2322  54.5293    1.3  11.7   72.7   0.3395   8.8 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
43.372590 962.126300
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6339  22.0149    0.3  32.5   35.5  36.6364  37.2    0.0	Crab                          
 45.5589  57.0369    2.6  21.1  148.6   3.2522   4.4 ------	UNKNOWN                       
118.0926   6.9338    3.4  55.2   -7.5   7.8721   3.4 ------	UNKNOWN                       
294.8207  64.2695    5.5  58.8 -159.2  12.8801   2.1 ------	UNKNOWN                       
132.5045  10.1219    4.1  58.9  -24.4  14.8978   2.8 ------	UNKNOWN                       
133.9760  14.1649    4.6  56.3  -28.3   9.1461   2.5 ------	UNKNOWN                       
133.5647  10.9562    3.0  58.8  -25.9  19.7316   3.9 ------	UNKNOWN

Plot creation:
Sat May 30 17:56:51 EDT 2015