batgrbproduct analysis for trigger=458918

batgrbproduct Analysis for Trigger=458918

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 21:23:47 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger458918
======================================================================

  Trigger: 00458918      Segment: 000

  BAT Trigger Time: 334477141.44   [s; MET]
      Trigger Stop: 334477149.632   [s; MET]
               UTC: 2011-08-08T06:18:54.201560    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 57.2642206519533   Dec: -44.1786208592457  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.19
     Image Trigger?:     NO
     Rate S/N Ratio:     10  [ if not an image trigger ]
     Image S/N Ratio:    7.19

  Flight Position:   [ source = BAT ]
    RA: 57.2642206519533   Dec: -44.1786208592457  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 57.3161099519403   Dec: -44.1874910933551  [deg; J2000]  
        { 03h 49m 15.9s , -44d 11' 15.0" }
         +/- 2.29524687581232 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.38573959706836 [arcmin] (formal 1-sigma fit error)
    SNR: 9.28213331131464
 
  Angular difference between Flight and Ground position is 2.295199 arcmin
 
  Partial Coding Fraction: 0.765625    [ including projection effects ]

  Duration
     T90: 40.7040000557899 +/- 9.02859461372617
        Measured from: 0.639999985694885
                   to: 41.3440000414848     [s; relative to TRIGTIME]
     T50: 21.2000000476837 +/- 13.3713508979011
        Measured from: 3.02399998903275
                   to: 24.2240000367165     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.18800002336502     
                   to: 2.18800002336502     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.272000014781952     
                   to: 44.7680000066757     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.271722   0.324640   0.115559   0.021219
           0.046201   0.047217   0.041435   0.037888 [error]
 Peak      0.015582   0.037514   0.012492   0.007124
           0.007334   0.007409   0.006394   0.005691 [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 8.98e-08 1.14e-07 1.06e-07 1.74e-07 3.69e-07 4.84e-07   erg/cm2
              Error 2.11e-08 2.19e-08 3.70e-08 1.17e-07 8.61e-08 1.63e-07   erg/cm2
Peak flux Power-law 2.39e-01 1.96e-01 1.09e-01 8.84e-02 5.83e-01 6.32e-01   ph/cm2/s
              Error 9.66e-02 5.87e-02 4.78e-02 7.30e-02 1.75e-01 1.93e-01   ph/cm2/s
 
Fluence   Cutoff-PL 8.76e-08 1.25e-07 9.52e-08 4.11e-08 3.36e-07 3.49e-07   erg/cm2
              Error 2.22e-08 3.05e-08 5.75e-08 1.42e-07 9.98e-08 1.91e-07   erg/cm2
Peak flux Cutoff-PL 1.97e-01 2.57e-01 9.99e-02 7.37e-03 5.60e-01 5.61e-01   ph/cm2/s
              Error 1.14e-01 1.04e-01 8.33e-02 4.35e-02 1.86e-01 1.85e-01   ph/cm2/s
 
Fluence        Band 8.87e-08 1.26e-07 8.93e-08 9.91e-08 3.47e-07 4.04e-07   erg/cm2
              Error -------- 3.02e-08 4.51e-08 -------- -------- --------   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    2.105    0.353    -      -           8.82e-04 2.26e-04   54.410 57
CPL   1.346    1.831      31.8    0.0      2.64e-03 0.00e+00   53.530 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.851    0.491    -      -           4.15e-03 1.46e-03   59.150 57
CPL  -0.362    0.901      43.6   46.5      8.20e-02 0.00e+00   56.070 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   45.040   -0.272   44.768
T90    40.704    0.640   41.344
T50    21.200    3.024   24.224
Peak    1.000    1.188    2.188

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
   57.3161   -44.1875   0.0205    29.2649   170.3273         0.8625464      9.282 TRIG_00458918                 
 
Foreground time interval of the image:
 -0.272  44.768 (delta_t =  45.040 [sec])
Background time interval of the image:
-239.440  -0.272 (delta_t = 239.168 [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   -0.272 sec. to   44.768 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.10532     ( -0.333371   0.372195 )
Norm@50keV  : 8.81694E-04    ( -0.000229301   0.000222713 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.41 using 59 PHA bins.
# Reduced chi-squared =         0.9546 for     57 degrees of freedom 
# Null hypothesis probability =   5.727564e-01
 
Photon flux (15-150 keV)    in 45.04 sec: 0.139079 ( -0.0253596  0.0253642 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.69154e-07 ( -8.39154e-08  8.82658e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.272 sec. to   44.768 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.34574     ( -2.60206   1.05899 )
Epeak [keV] : 31.8032      (   )
Norm@50keV  : 2.64189E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.53 using 59 PHA bins.
# Reduced chi-squared =         0.9559 for     56 degrees of freedom 
# Null hypothesis probability =   5.688423e-01
 
Photon flux (15-150 keV)    in 45.04 sec: 0.136178 ( -0.025742  0.025855 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.36386e-07 ( -9.44453e-08  1.05245e-07 ) ergs/cm2

Band function

Time interval is from   -0.272 sec. to   44.768 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.98202   ( -10.4463   -4.98202 )
beta        : -2.42210    ( -1.03408   0.470101 )
Epeak [keV] : 23.0993      ( -23.0993 5.7073 )
Norm@50keV   : 275.295    ( -49.4026   1.3203e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.96 using 59 PHA bins.
# Reduced chi-squared =         0.9447 for     55 degrees of freedom 
# Null hypothesis probability =   5.916685e-01
 
Photon flux (15-150 keV)    in 45.04 sec: 0.137951 ( 6.86205  -0.028119 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.47385e-07 ( 0  0 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 7.89344  (-1.46946  1.89341)
R^2/D10^2   : 0.163860  (-0.0940931   0.209485)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.85 using 59 PHA bins.
# Reduced chi-squared =         0.9973 for     57 degrees of freedom 
# Null hypothesis probability =   4.807830e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.232e-08   2.737e-08
25- 50  1.407e-07   5.020e-08
50-150  3.535e-08   2.080e-08
15-150  2.584e-07   7.952e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 50.1068       (-20.1464      45.4731)
Norm        : 0.794196       (-0.219932     0.339803)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.50 using 59 PHA bins.
# Reduced chi-squared =         0.9387 for     57 degrees of freedom 
# Null hypothesis probability =   6.070063e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.751e-08   2.268e-08
25- 50  1.258e-07   3.482e-08
50-150  1.224e-07   6.359e-08
15-150  3.356e-07   9.839e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.20971        (-1.91584      1.92756)
R1^2/D10^2  : 0.351377        (-0.222094      0.891455)
kT2 [keV]   : 23.7686        (-20.0814      114.747)
R2^2/D10^2  : 1.27387E-03    (-0.00118523   0.0233986)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.47 using 59 PHA bins.
# Reduced chi-squared =         0.9358 for     55 degrees of freedom 
# Null hypothesis probability =   6.104019e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.083e-08   5.113e-08
25- 50  1.232e-07   6.799e-08
50-150  1.441e-07   9.440e-08
15-150  3.582e-07   1.930e-07

Peak spectrum fit

Power-law model

Time interval is from    1.188 sec. to    2.188 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.85103     ( -0.462355   0.520232 )
Norm@50keV  : 4.14678E-03    ( -0.0014776   0.00143533 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.15 using 59 PHA bins.
# Reduced chi-squared =          1.038 for     57 degrees of freedom 
# Null hypothesis probability =   3.970989e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.583128 ( -0.174786  0.174833 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.81134e-08 ( -1.30771e-08  1.37724e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    1.188 sec. to    2.188 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.362005     ( 0.498358   2.29971 )
Epeak [keV] : 43.5577      ( -14.6069 78.4564 )
Norm@50keV  : 8.19888E-02    ( -0.10783   -0.10783 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.07 using 59 PHA bins.
# Reduced chi-squared =          1.001 for     56 degrees of freedom 
# Null hypothesis probability =   4.723343e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.560379 ( -0.19682  0.174588 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.24653e-08 ( -1.44153e-08  1.44279e-08 ) ergs/cm2

Band function

Time interval is from    1.188 sec. to    2.188 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -6.18265   -5 )
beta        : -3.01496    ( 3.01495   1.06896 )
Epeak [keV] : 33.8739      ( -8.56219 7.43097 )
Norm@50keV   : 107.566    ( -30.0352   527.397 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.59 using 59 PHA bins.
# Reduced chi-squared =         0.9925 for     55 degrees of freedom 
# Null hypothesis probability =   4.903914e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.28236e-08 ( 0  0 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 10.3712  (-2.66714  3.90384)
R^2/D10^2   : 0.264182  (-0.264063   0.539938)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.33 using 59 PHA bins.
# Reduced chi-squared =         0.9883 for     57 degrees of freedom 
# Null hypothesis probability =   5.001284e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.854e-09   3.352e-09
25- 50  1.531e-08   9.345e-09
50-150  8.871e-09   6.050e-09
15-150  3.003e-08   1.882e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 76.6162       (-41.1436      -76.7561)
Norm        : 2.87003       (-0.98011     1.5017)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.53 using 59 PHA bins.
# Reduced chi-squared =          1.009 for     57 degrees of freedom 
# Null hypothesis probability =   4.553539e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.425e-09   4.447e-09
25- 50  1.209e-08   7.350e-09
50-150  1.657e-08   1.411e-08
15-150  3.609e-08   2.464e-08

Double BB

------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 19.0864        (      )
R1^2/D10^2  : 1.19603E-02        (-0.0119395      0.663585)
kT2 [keV]   : 8.10058        (-8.09897      -8.09897)
R2^2/D10^2  : 0.474973    (-0.475661   -0.475661)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.59 using 59 PHA bins.
#Fit statistic : Chi-Squared =          55.55 using 59 PHA bins.
# Reduced chi-squared =          1.011 for     55 degrees of freedom 
# Reduced chi-squared =          1.010 for     55 degrees of freedom 
# Null hypothesis probability =   4.524110e-01
# Null hypothesis probability =   4.537366e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.526e-09   4.907e-09
25- 50  1.430e-08   1.562e-08
50-150  1.333e-08   1.221e-08
15-150  3.416e-08   3.378e-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: 2.10532     ( -0.333371   0.372195 )
Norm@50keV  : 8.81694E-04    ( -0.000229301   0.000222713 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.41 using 59 PHA bins.
# Reduced chi-squared =         0.9546 for     57 degrees of freedom 
# Null hypothesis probability =   5.727564e-01
 
Photon flux (15-150 keV)    in 45.04 sec: 0.139079 ( -0.0253596  0.0253642 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.69154e-07 ( -8.39154e-08  8.82658e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.34574     ( -2.60206   1.05899 )
Epeak [keV] : 31.8032      (   )
Norm@50keV  : 2.64189E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.53 using 59 PHA bins.
# Reduced chi-squared =         0.9559 for     56 degrees of freedom 
# Null hypothesis probability =   5.688423e-01
 
Photon flux (15-150 keV)    in 45.04 sec: 0.136178 ( -0.025742  0.025855 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.36386e-07 ( -9.44453e-08  1.05245e-07 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.98202   ( -10.4463   -4.98202 )
beta        : -2.42210    ( -1.03408   0.470101 )
Epeak [keV] : 23.0993      ( -23.0993 5.7073 )
Norm@50keV   : 275.295    ( -49.4026   1.3203e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.96 using 59 PHA bins.
# Reduced chi-squared =         0.9447 for     55 degrees of freedom 
# Null hypothesis probability =   5.916685e-01
 
Photon flux (15-150 keV)    in 45.04 sec: 0.137951 ( 6.86205  -0.028119 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.47385e-07 ( 0  0 ) ergs/cm2

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

S(25-50 keV)  = 1.14e-07
S(50-100 keV) = 1.06e-07

T90 vs. Hardness ratio plot

T90                                   = 40.7040000557899 sec.
Hardness ratio (energy fluence ratio) = 0.929825

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.19475
Count Ratio (50-100 keV) / (15-25 keV) = 0.425284

Mask shadow pattern

IMX = -5.524030337878577E-01, IMY = -9.415320014049408E-02

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:
-239.440000 -0.272000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
135.5544 -40.5644    5.6  38.3  -76.4   1.2660   2.1    1.3	Vela X-1                      
170.3122 -60.6224    3.2  33.4  -26.1   0.9439   3.6    0.1	Cen X-3                       
186.5858 -62.7815    2.0  36.4  -13.1   1.6251   5.9    2.1	GX 301-2                      
 19.8535 -46.2684    2.4  39.4  126.3   3.1395   4.8 ------	UNKNOWN                       
202.9077 -50.1117    2.6  51.8  -10.8   2.2886   4.4 ------	UNKNOWN                       
195.5555 -40.5647    2.8  58.5  -21.2   5.5161   4.1 ------	UNKNOWN                       
 80.9631 -12.2460    2.6  57.3 -150.3   5.5922   4.4 ------	UNKNOWN                       
 85.4122 -14.1152    4.3  55.3 -145.2   3.7080   2.7 ------	UNKNOWN                       
168.7052 -39.6442    3.6  50.6  -44.4   3.2720   3.2 ------	UNKNOWN

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

Time interval of the image:
-0.272000 44.768000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
135.3500 -40.6553    6.1  38.2  -76.5  -0.3841  -1.9   10.1	Vela X-1                      
170.3605 -60.5887   79.4  33.5  -26.1  -0.0141  -0.1    2.4	Cen X-3                       
186.4205 -62.8725    5.0  36.3  -13.1  -0.2364  -2.3    8.9	GX 301-2                      
 57.3161 -44.1876    1.2  29.3  170.3   0.8629   9.3 ------	UNKNOWN                       
 58.2977 -17.0908    2.3  55.2 -177.3   1.5943   5.1 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
100.060590 721.760610
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 18.2436  -9.3403    3.0  48.5  142.3   7.9219   3.9 ------	UNKNOWN                       
 70.9789   9.6778    4.3  55.3 -145.2   8.4001   2.7 ------	UNKNOWN                       
 89.1662 -11.0581    3.3  43.0 -112.2   7.8931   3.5 ------	UNKNOWN

Plot creation:
Sat May 30 21:46:33 EDT 2015