batgrbproduct analysis for trigger=534815

batgrbproduct Analysis for Trigger=534815

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): Mon Jan 13 00:22:58 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger534815
======================================================================

  Trigger: 00534815      Segment: 000

  BAT Trigger Time: 370478456   [s; MET]
      Trigger Stop: 370478520   [s; MET]
               UTC: 2012-09-27T22:40:46.302240    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 136.600410032008   Dec: 0.417375483965046  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    18.92
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    18.92

  Flight Position:   [ source = BAT ]
    RA: 136.600410032008   Dec: 0.417375483965046  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 136.605400000271   Dec: 0.42054929044966  [deg; J2000]  
        { 09h 06m 25.3s , +00d 25' 14.0" }
         +/- 0.854975904725367 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.278703160592133 [arcmin] (formal 1-sigma fit error)
    SNR: 38.0475879275154
 
  Angular difference between Flight and Ground position is 0.354820 arcmin
 
  Partial Coding Fraction: 0.6484375    [ including projection effects ]

  Duration
     T90: 35.0559999346733 +/- 15.615164566255
        Measured from: -14.772000014782
                   to: 20.2839999198914     [s; relative to TRIGTIME]
     T50: 15.4879999160767 +/- 1.53094089532442
        Measured from: -4.08399999141693
                   to: 11.4039999246597     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -3.92799997329712     
                   to: -2.92799997329712     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -37.9399999976158     
                   to: 31.1280000209808     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.029282   1.610909   1.074575   0.183142
           0.056089   0.058607   0.051540   0.044187 [error]
 Peak      0.049847   0.068039   0.058303   0.017861
           0.007356   0.008061   0.007056   0.005675 [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 3.83e-07 6.51e-07 8.44e-07 2.21e-06 2.48e-06 4.09e-06   erg/cm2
              Error 2.90e-08 3.07e-08 5.01e-08 2.75e-07 1.22e-07 3.16e-07   erg/cm2
Peak flux Power-law 5.17e-01 5.18e-01 3.63e-01 4.04e-01 1.56e+00 1.80e+00   ph/cm2/s
              Error 1.05e-01 6.74e-02 5.59e-02 1.23e-01 1.95e-01 2.24e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.27e-07 7.15e-07 8.80e-07 6.63e-07 2.31e-06 2.58e-06   erg/cm2
              Error 3.47e-08 3.90e-08 5.74e-08 2.62e-07 1.35e-07 2.88e-07   erg/cm2
Peak flux Cutoff-PL 4.65e-01 5.53e-01 3.85e-01 2.08e-01 1.53e+00 1.61e+00   ph/cm2/s
              Error 1.22e-01 8.27e-02 6.47e-02 1.82e-01 1.98e-01 2.70e-01   ph/cm2/s
 
Fluence        Band 3.09e-07 7.38e-07 8.29e-07 1.39e-06 2.35e-06 3.27e-06   erg/cm2
              Error 3.93e-08 4.80e-08 7.23e-08 -------- 1.36e-07 --------   erg/cm2
Peak flux      Band 4.68e-01 5.51e-01 3.84e-01 2.19e-01 1.53e+00 1.62e+00   ph/cm2/s
              Error 1.20e-01 -------- -------- -------- -------- --------   ph/cm2/s

 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.626    0.077    -      -           3.86e-03 1.78e-04   76.490 57
CPL   0.662    0.371      67.8   10.3      1.20e-02 5.39e-03   51.670 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.511    0.201    -      -           1.24e-02 1.56e-03   57.390 57
CPL   0.871    0.823      88.0  -30.0      2.65e-02 3.26e-02   55.390 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: 26.880000 sec.
T50 in the 50-300 keV band: 13.632000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   69.068  -37.940   31.128
T90    35.056  -14.772   20.284
T50    15.488   -4.084   11.404
Peak    1.000   -3.928   -2.928

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
  136.6054     0.4205   0.0051    37.1929   -15.1370         3.8823339     38.048 TRIG_00534815                 
 
Foreground time interval of the image:
-14.499  31.128 (delta_t =  45.627 [sec])
Background time interval of the image:

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 64.000000

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 64.000000

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 64.000000

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  -37.940 sec. to   31.128 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.62622     ( -0.0766534   0.0770476 )
Norm@50keV  : 3.85658E-03    ( -0.000178607   0.00017824 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          76.49 using 59 PHA bins.
# Reduced chi-squared =          1.342 for     57 degrees of freedom 
# Null hypothesis probability =   4.349157e-02
 
Photon flux (15-150 keV)    in 69.07 sec: 0.499699 ( -0.0234127  0.0234501 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.48357e-06 ( -1.2145e-07  1.21887e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from  -37.940 sec. to   31.128 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.661747     ( -0.38719   0.354635 )
Epeak [keV] : 67.7674      ( -7.62492 13.0091 )
Norm@50keV  : 1.19789E-02    ( -0.00400991   0.00676267 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.67 using 59 PHA bins.
# Reduced chi-squared =         0.9228 for     56 degrees of freedom 
# Null hypothesis probability =   6.391921e-01
 
Photon flux (15-150 keV)    in 69.07 sec: 0.476937 ( -0.024675  0.024707 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.31414e-06 ( -1.34942e-07  1.35743e-07 ) ergs/cm2

Band function

Time interval is from  -37.940 sec. to   31.128 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.93102E-02   ( -0.346998   0.276921 )
beta        : -2.09890    ( 8.30623   18.3062 )
Epeak [keV] : 51.8425      ( -6.36144 11.4969 )
Norm@50keV   : 3.01136E-02    ( -0.0228943   0.353062 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.18 using 59 PHA bins.
# Reduced chi-squared =         0.9124 for     55 degrees of freedom 
# Null hypothesis probability =   6.588196e-01
 
Photon flux (15-150 keV)    in 69.07 sec: 0.476732 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.34676e-06 ( -2.34627e-06  -1.38727e-07 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 13.8515  (-0.709885  0.755342)
R^2/D10^2   : 7.42183E-02  (-0.0131579   0.0157969)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         109.64 using 59 PHA bins.
# Reduced chi-squared =         1.9235 for     57 degrees of freedom 
# Null hypothesis probability =   3.490035e-05
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.080e-07   1.785e-08
25- 50  7.652e-07   4.282e-08
50-150  9.615e-07   8.806e-08
15-150  1.935e-06   1.057e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 153.426       (-30.0262      38.2144)
Norm        : 2.07266       (-0.107228     0.124797)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.09 using 59 PHA bins.
# Reduced chi-squared =          1.054 for     57 degrees of freedom 
# Null hypothesis probability =   3.645075e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.670e-07   2.739e-08
25- 50  6.824e-07   5.557e-08
50-150  1.360e-06   3.961e-07
15-150  2.409e-06   4.614e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.23896        (-1.43073      1.44157)
R1^2/D10^2  : 0.297067        (-0.107379      0.218366)
kT2 [keV]   : 24.0927        (-4.20814      7.40311)
R2^2/D10^2  : 6.73432E-03    (-0.00439745   0.00613312)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.31 using 59 PHA bins.
# Reduced chi-squared =         0.8965 for     55 degrees of freedom 
# Null hypothesis probability =   6.909121e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.050e-07   5.533e-08
25- 50  7.395e-07   1.212e-07
50-150  1.287e-06   4.543e-07
15-150  2.332e-06   6.330e-07

Peak spectrum fit

Power-law model

Time interval is from   -3.928 sec. to   -2.928 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.51086     ( -0.199455   0.202054 )
Norm@50keV  : 1.24445E-02    ( -0.00156773   0.001559 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.39 using 59 PHA bins.
# Reduced chi-squared =          1.007 for     57 degrees of freedom 
# Null hypothesis probability =   4.605089e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.55814 ( -0.194624  0.194886 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.17849e-07 ( -1.59855e-08  1.61212e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -3.928 sec. to   -2.928 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.871171     ( -0.923274   0.722217 )
Epeak [keV] : 87.9859      ( -27.9495 -87.9859 )
Norm@50keV  : 2.64691E-02    ( -0.0147882   0.0503447 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.39 using 59 PHA bins.
# Reduced chi-squared =         0.9891 for     56 degrees of freedom 
# Null hypothesis probability =   4.979105e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.52928 ( -0.19824  0.19819 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.13605e-07 ( -1.7035e-08  1.7071e-08 ) ergs/cm2

Band function

Time interval is from   -3.928 sec. to   -2.928 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.870785   ( -0.548196   0.80562 )
beta        : -10.0000    ( 10   8.88178e-15 )
Epeak [keV] : 87.9534      ( -24.8706 -87.9535 )
Norm@50keV   : 2.64785E-02    ( -0.0148091   0.050244 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.39 using 59 PHA bins.
# Reduced chi-squared =          1.007 for     55 degrees of freedom 
# Null hypothesis probability =   4.599093e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.53187 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.15001e-07 ( 0  0 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 14.7527  (-2.16523  2.59332)
R^2/D10^2   : 0.192184  (-0.0841863   0.145527)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.29 using 59 PHA bins.
# Reduced chi-squared =          1.198 for     57 degrees of freedom 
# Null hypothesis probability =   1.454649e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.780e-09   1.881e-09
25- 50  3.435e-08   5.865e-09
50-150  5.050e-08   1.297e-08
15-150  9.363e-08   1.563e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.362       (-79.7307      -199.363)
Norm        : 6.42438       (-0.782462     0.783462)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.06 using 59 PHA bins.
# Reduced chi-squared =         0.9836 for     57 degrees of freedom 
# Null hypothesis probability =   5.101644e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.600e-08   9.100e-09
25- 50  3.077e-08   1.710e-08
50-150  6.749e-08   3.700e-08
15-150  1.143e-07   6.330e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.41270        (-2.60047      3.23173)
R1^2/D10^2  : 1.29589        (-0.859644      4.30122)
kT2 [keV]   : 25.2428        (-7.04891      21.7499)
R2^2/D10^2  : 2.17536E-02    (-0.0192315   0.0561845)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.46 using 59 PHA bins.
# Reduced chi-squared =         0.9901 for     55 degrees of freedom 
# Null hypothesis probability =   4.952970e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.449e-08   7.665e-09
25- 50  3.212e-08   1.620e-08
50-150  6.819e-08   3.655e-08
15-150  1.148e-07   5.955e-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: 1.68914     ( -0.0713627   0.0718894 )
Norm@50keV  : 5.46189E-03    ( -0.000234992   0.000234423 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.29 using 59 PHA bins.
# Reduced chi-squared =          1.251 for     57 degrees of freedom 
# Null hypothesis probability =   9.650492e-02
 
Photon flux (15-150 keV)    in 45.63 sec: 0.722668 ( -0.0313241  0.0313779 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.30962e-06 ( -1.03673e-07  1.03972e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.682692     ( -0.361084   0.333402 )
Epeak [keV] : 63.9831      ( -6.1795 9.5905 )
Norm@50keV  : 1.77527E-02    ( -0.00563849   0.00916278 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.42 using 59 PHA bins.
# Reduced chi-squared =         0.7217 for     56 degrees of freedom 
# Null hypothesis probability =   9.420268e-01
 
Photon flux (15-150 keV)    in 45.63 sec: 0.686123 ( -0.033161  0.033235 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.14978e-06 ( -1.14527e-07  1.15485e-07 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.682591   ( -0.253919   0.440838 )
beta        : -10.0000    ( 10   1.77636e-15 )
Epeak [keV] : 63.9700      ( -5.43498 9.59292 )
Norm@50keV   : 1.77548E-02    ( -0.00564581   0.0091709 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.42 using 59 PHA bins.
# Reduced chi-squared =         0.7349 for     55 degrees of freedom 
# Null hypothesis probability =   9.294363e-01
 
Photon flux (15-150 keV)    in 45.63 sec: 0.690121 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.16196e-06 ( 0  0 ) ergs/cm2

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

S(25-50 keV)  = 6.51e-07
S(50-100 keV) = 8.44e-07

T90 vs. Hardness ratio plot

T90                                   = 35.0559999346733 sec.
Hardness ratio (energy fluence ratio) = 1.29647

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.56508
Count Ratio (50-100 keV) / (15-25 keV) = 1.044

Mask shadow pattern

IMX = 7.325162244674046E-01, IMY = 1.981561911897791E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000

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:

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

Time interval of the image:
-14.499410 31.128000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
205.6495  84.5698    3.0  51.3  150.3   1.5814   3.8 ------	UNKNOWN                       
136.6054   0.4206    0.3  37.2  -15.1   3.8823  38.0 ------	UNKNOWN                       
145.2156  -8.5903    2.5  44.6  -30.5   0.6696   4.5 ------	UNKNOWN                       
227.4198  43.4959    4.2  58.7 -159.2   1.5452   2.7 ------	UNKNOWN                       
211.8957  32.6505    2.8  51.4 -141.5   1.2990   4.1 ------	UNKNOWN                       
217.4554  33.9338    3.4  55.2 -145.2   1.6225   3.4 ------	UNKNOWN                       
180.7010   7.3408    2.1  40.8  -88.9   1.7363   5.4 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
137.500590 853.900610
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
135.5264 -40.5553    0.9  41.0   -1.7   8.2851  12.4    0.1	Vela X-1                      
115.9451  46.3878    3.1  49.4  158.3   4.9928   3.7 ------	UNKNOWN                       
150.4837 -34.2642    2.6  37.0  -22.2   2.1220   4.5 ------	UNKNOWN                       
178.6375  35.3742    3.2  52.4 -139.4   8.3455   3.6 ------	UNKNOWN                       
178.8201  28.6954    2.1  49.2 -131.9  11.1927   5.4 ------	UNKNOWN

Plot creation:
Sat May 30 18:15:09 EDT 2015