batgrbproduct analysis for trigger=589590

batgrbproduct Analysis for Trigger=589590

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 Oct  5 00:42:23 EDT 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger589590
======================================================================

  Trigger: 00589590      Segment: 000

  BAT Trigger Time: 415380301.184   [s; MET]
      Trigger Stop: 415380303.232   [s; MET]
               UTC: 2014-03-01T15:24:49.478320    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 69.5477390229074   Dec: -34.2830325341323  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.65
     Image Trigger?:     NO
     Rate S/N Ratio:     10.3923048454133  [ if not an image trigger ]
     Image S/N Ratio:    7.65

  Flight Position:   [ source = BAT ]
    RA: 69.5477390229074   Dec: -34.2830325341323  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 69.5267468553023   Dec: -34.2365775751088  [deg; J2000]  
        { 04h 38m 06.4s , -34d 14' 11.7" }
         +/- 1.90843045212268 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.877800840558079 [arcmin] (formal 1-sigma fit error)
    SNR: 12.0823714480052
 
  Angular difference between Flight and Ground position is 2.975348 arcmin
 
  Partial Coding Fraction: 0.6640625    [ including projection effects ]

  Duration
     T90: 27.8039999008179 +/- 8.38857342278462
        Measured from: -7.7039999961853
                   to: 20.0999999046326     [s; relative to TRIGTIME]
     T50: 16.6399999260902 +/- 6.69979853960238
        Measured from: -4.24000000953674
                   to: 12.3999999165535     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.107999980449677     
                   to: 1.10799998044968     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -19.2200000286102     
                   to: 21.5799999833107     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.321096   0.341028   0.169276   0.079474
           0.040278   0.041764   0.036117   0.030574 [error]
 Peak      0.032470   0.030294   0.028857   0.015491
           0.006649   0.007117   0.006044   0.004975 [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 9.77e-08 1.35e-07 1.39e-07 2.60e-07 4.55e-07 6.32e-07   erg/cm2
              Error 1.92e-08 1.90e-08 3.52e-08 1.32e-07 7.98e-08 1.70e-07   erg/cm2
Peak flux Power-law 2.57e-01 2.68e-01 1.97e-01 2.33e-01 8.12e-01 9.55e-01   ph/cm2/s
              Error 9.11e-02 5.75e-02 5.02e-02 1.26e-01 1.63e-01 1.94e-01   ph/cm2/s
 
Fluence   Cutoff-PL 9.85e-08 1.36e-07 1.40e-07 2.46e-07 4.52e-07 6.07e-07   erg/cm2
              Error 1.92e-08 1.57e-08 3.52e-08 -------- 6.17e-08 2.07e-07   erg/cm2
Peak flux Cutoff-PL 2.63e-01 2.69e-01 1.94e-01 2.24e-01 8.13e-01 9.49e-01   ph/cm2/s
              Error 9.24e-02 5.81e-02 5.04e-02 1.89e-01 1.63e-01 2.10e-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    1.963    0.276    -      -           1.21e-03 2.21e-04   62.000 57
CPL   1.963    0.972     598.0    0.0      1.21e-03 0.00e+00   62.000 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.444    0.366    -      -           6.59e-03 1.33e-03   68.620 57
CPL   1.454    0.641    9999.4    0.0      6.58e-03 5.28e-03   68.630 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   40.800  -19.220   21.580
T90    27.804   -7.704   20.100
T50    16.640   -4.240   12.400
Peak    1.000    0.108    1.108

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
   69.5267   -34.2366   0.0159    25.0445  -111.0085         0.9745536     12.082 TRIG_00589590                 
 
Foreground time interval of the image:
-19.220  21.580 (delta_t =  40.800 [sec])
Background time interval of the image:
-239.184 -19.220 (delta_t = 219.964 [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 2.048000

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 2.048000

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 2.048000

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  -19.220 sec. to   21.580 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.96338     ( -0.266457   0.28568 )
Norm@50keV  : 1.21152E-03    ( -0.000225034   0.000216574 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.00 using 59 PHA bins.
# Reduced chi-squared =          1.088 for     57 degrees of freedom 
# Null hypothesis probability =   3.023788e-01
 
Photon flux (15-150 keV)    in 40.8 sec: 0.178736 ( -0.0247326  0.0247333 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.55091e-07 ( -7.85804e-08  8.11063e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from  -19.220 sec. to   21.580 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.96333     ( -0.793323   1.14978 )
Epeak [keV] : 598.003      (   )
Norm@50keV  : 1.21273E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.00 using 59 PHA bins.
# Reduced chi-squared =          1.107 for     56 degrees of freedom 
# Null hypothesis probability =   2.707079e-01
 
Photon flux (15-150 keV)    in 40.8 sec: 0.178704 ( -0.02474  0.024723 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.52093e-07 ( -4.07633e-08  8.26649e-08 ) ergs/cm2

Band function

Time interval is from  -19.220 sec. to   21.580 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.95842   ( -4.95842   -4.95842 )
beta        : -2.03652    ( -0.347783   0.293219 )
Epeak [keV] : 19.4803      ( -19.4803 4.26113 )
Norm@50keV   : 925.876    ( -127.65   1.65707e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.07 using 59 PHA bins.
# Reduced chi-squared =          1.110 for     55 degrees of freedom 
# Null hypothesis probability =   2.671375e-01
 
Photon flux (15-150 keV)    in 40.8 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]    : 9.00444  (-1.50047  1.83264)
R^2/D10^2   : 0.121202  (-0.0617391   0.124822)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          77.49 using 59 PHA bins.
# Reduced chi-squared =          1.360 for     57 degrees of freedom 
# Null hypothesis probability =   3.681014e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.808e-08   1.867e-08
25- 50  1.661e-07   3.315e-08
50-150  6.346e-08   2.658e-08
15-150  3.076e-07   6.648e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 69.7222       (-26.9796      61.8954)
Norm        : 0.874499       (-0.186263     0.254004)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.09 using 59 PHA bins.
# Reduced chi-squared =          1.124 for     57 degrees of freedom 
# Null hypothesis probability =   2.419336e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.150e-08   1.677e-08
25- 50  1.454e-07   2.456e-08
50-150  1.862e-07   9.233e-08
15-150  4.231e-07   1.003e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.66867        (-2.29461      1.94884)
R1^2/D10^2  : 0.334907        (-0.201425      1.21888)
kT2 [keV]   : 41.2919        (-25.715      -42.3082)
R2^2/D10^2  : 3.96713E-04    (-0.000356135   0.00831223)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.29 using 59 PHA bins.
# Reduced chi-squared =          1.133 for     55 degrees of freedom 
# Null hypothesis probability =   2.328752e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.605e-08   4.297e-08
25- 50  1.391e-07   5.392e-08
50-150  2.540e-07   1.429e-07
15-150  4.892e-07   2.174e-07

Peak spectrum fit

Power-law model

Time interval is from    0.108 sec. to    1.108 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.44393     ( -0.364911   0.367229 )
Norm@50keV  : 6.59497E-03    ( -0.00134221   0.00132437 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.62 using 59 PHA bins.
# Reduced chi-squared =          1.204 for     57 degrees of freedom 
# Null hypothesis probability =   1.393263e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.811521 ( -0.162877  0.16331 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.31806e-08 ( -1.41694e-08  1.43816e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    0.108 sec. to    1.108 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.45418     ( -0.922239   0.359903 )
Epeak [keV] : 9999.35      ( -9999.36 -9999.36 )
Norm@50keV  : 6.57642E-03    ( -0.00133921   0.00921261 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.63 using 59 PHA bins.
# Reduced chi-squared =          1.225 for     56 degrees of freedom 
# Null hypothesis probability =   1.198651e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.813468 ( -0.164885  0.161347 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.31846e-08 ( -1.41425e-08  1.41749e-08 ) ergs/cm2

Band function

Time interval is from    0.108 sec. to    1.108 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.97767   ( -4.97767   -4.97767 )
beta        : -1.48766    ( -0.416926   0.382344 )
Epeak [keV] : 21.5082      ( -21.5082 7.88008 )
Norm@50keV   : 1635.43    ( -320.498   4.15176e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.22 using 59 PHA bins.
# Reduced chi-squared =          1.240 for     55 degrees of freedom 
# Null hypothesis probability =   1.085909e-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]    : 17.5968  (-4.98176  7.09115)
R^2/D10^2   : 5.19365E-02  (-0.0349668   0.110223)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          80.15 using 59 PHA bins.
# Reduced chi-squared =          1.406 for     57 degrees of freedom 
# Null hypothesis probability =   2.332660e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.243e-09   1.542e-09
25- 50  1.474e-08   6.123e-09
50-150  3.293e-08   1.447e-08
15-150  5.092e-08   2.281e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.362       (-42.8901      -199.363)
Norm        : 3.32456       (-0.657508     0.658774)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.60 using 59 PHA bins.
# Reduced chi-squared =          1.221 for     57 degrees of freedom 
# Null hypothesis probability =   1.221118e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.278e-09   4.819e-09
25- 50  1.592e-08   9.025e-09
50-150  3.493e-08   2.042e-08
15-150  5.913e-08   3.395e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.20505        (-1.86789      3.04451)
R1^2/D10^2  : 2.91256        (-2.4349      18.2796)
kT2 [keV]   : 29.6447        (-10.0766      32.386)
R2^2/D10^2  : 8.09122E-03    (-0.0070185   0.0234891)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.02 using 59 PHA bins.
# Reduced chi-squared =          1.219 for     55 degrees of freedom 
# Null hypothesis probability =   1.283367e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.417e-09   5.455e-09
25- 50  1.285e-08   6.875e-09
50-150  4.319e-08   2.571e-08
15-150  6.546e-08   3.530e-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: 1.96338     ( -0.266457   0.28568 )
Norm@50keV  : 1.21152E-03    ( -0.000225034   0.000216574 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.00 using 59 PHA bins.
# Reduced chi-squared =          1.088 for     57 degrees of freedom 
# Null hypothesis probability =   3.023788e-01
 
Photon flux (15-150 keV)    in 40.8 sec: 0.178736 ( -0.0247326  0.0247333 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.55091e-07 ( -7.85804e-08  8.11063e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.96333     ( -0.793323   1.14978 )
Epeak [keV] : 598.003      (   )
Norm@50keV  : 1.21273E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.00 using 59 PHA bins.
# Reduced chi-squared =          1.107 for     56 degrees of freedom 
# Null hypothesis probability =   2.707079e-01
 
Photon flux (15-150 keV)    in 40.8 sec: 0.178704 ( -0.02474  0.024723 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.52093e-07 ( -4.07633e-08  8.26649e-08 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.95842   ( -4.95842   -4.95842 )
beta        : -2.03652    ( -0.347783   0.293219 )
Epeak [keV] : 19.4803      ( -19.4803 4.26113 )
Norm@50keV   : 925.876    ( -127.65   1.65707e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.07 using 59 PHA bins.
# Reduced chi-squared =          1.110 for     55 degrees of freedom 
# Null hypothesis probability =   2.671375e-01
 
Photon flux (15-150 keV)    in 40.8 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)  = 1.35e-07
S(50-100 keV) = 1.39e-07

T90 vs. Hardness ratio plot

T90                                   = 27.8039999008179 sec.
Hardness ratio (energy fluence ratio) = 1.02963

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.06207
Count Ratio (50-100 keV) / (15-25 keV) = 0.527182

Mask shadow pattern

IMX = -1.675136405898341E-01, IMY = 4.361939605809910E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 2.048000

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:
-239.184000 -19.220000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6372  22.0162    0.5  45.0    0.2   8.6418  24.8    0.2	Crab                          
135.5754 -40.5428    1.8  39.5  142.2   2.4046   6.3    2.3	Vela X-1                      
100.0901 -24.4641    2.5   6.0  132.0   0.7327   4.6 ------	UNKNOWN                       
124.7709 -78.5532    2.8  58.5 -172.6   4.3775   4.1 ------	UNKNOWN                       
 47.1385 -47.0177    2.2  45.4 -121.2   4.0206   5.1 ------	UNKNOWN

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

Time interval of the image:
-19.220000 21.580000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6368  22.0211    8.7  45.0    0.2   0.1785   1.3    0.4	Crab                          
135.5171 -40.7534   11.6  39.6  142.5   0.1427   1.0   11.9	Vela X-1                      
115.0971 -34.9275    2.3  22.5  144.5   0.3641   5.0 ------	UNKNOWN                       
 84.3850  30.2170    2.6  52.8    3.5   1.1409   4.4 ------	UNKNOWN                       
 69.5267 -34.2365    1.0  25.0 -111.0   0.9747  12.1 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
75.516590 907.016600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 98.1158 -18.6702    3.3  29.8   70.5   2.7736   3.4 ------	UNKNOWN                       
 67.5008  20.9457    2.7  55.2    2.4  11.1527   4.3 ------	UNKNOWN                       
141.7608 -89.5769    3.1  55.6 -175.7   6.6870   3.8 ------	UNKNOWN                       
 43.0195 -52.4468    2.7  26.2 -137.1   2.2158   4.3 ------	UNKNOWN                       
318.6112 -81.7235    4.0  59.0 -166.2   9.6763   2.9 ------	UNKNOWN                       
 10.5235 -47.8633    2.7  45.4 -121.2   9.8477   4.3 ------	UNKNOWN

Plot creation:
Sat May 30 14:22:06 EDT 2015