batgrbproduct analysis for trigger=309010

batgrbproduct Analysis for Trigger=309010

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 20 02:57:27 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger309010
======================================================================

  Trigger: 00309010      Segment: 000

  BAT Trigger Time: 229641335.296   [s; MET]
      Trigger Stop: 229641335.36   [s; MET]
               UTC: 2008-04-11T21:15:32.585440    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 38.0182886268497   Dec: -71.3420191948273  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.14
     Image Trigger?:     NO
     Rate S/N Ratio:     14.3178210632764  [ if not an image trigger ]
     Image S/N Ratio:    8.14

  Flight Position:   [ source = BAT ]
    RA: 38.0182886268497   Dec: -71.3420191948273  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 37.9612896897009   Dec: -71.2971012249888  [deg; J2000]  
        { 02h 31m 50.7s , -71d 17' 49.6" }
         +/- 0.485111069216351 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.128724523163234 [arcmin] (formal 1-sigma fit error)
    SNR: 85.4902698526476
 
  Angular difference between Flight and Ground position is 2.909172 arcmin
 
  Partial Coding Fraction: 0.8671875    [ including projection effects ]

  Duration
     T90: 56.3280000090599 +/- 0.922752397908764
        Measured from: 4.71999999880791
                   to: 61.0480000078678     [s; relative to TRIGTIME]
     T50: 25.0879999995232 +/- 0.0823650343659764
        Measured from: 17.9239999949932
                   to: 43.0119999945164     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 40.4519999921322     
                   to: 41.4519999921322     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.272000014781952     
                   to: 77.2759999930859     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total    15.069075  17.226665  11.395270   2.715978
           0.068647   0.072991   0.063979   0.049402 [error]
 Peak      1.348448   1.929183   1.410960   0.300256
           0.015259   0.018058   0.016243   0.009547 [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 4.33e-06 7.11e-06 8.85e-06 2.19e-05 2.65e-05 4.22e-05   erg/cm2
              Error 1.30e-07 1.25e-07 1.09e-07 6.53e-07 3.22e-07 6.50e-07   erg/cm2
Peak flux Power-law 1.37e+01 1.35e+01 9.33e+00 1.02e+01 4.06e+01 4.67e+01   ph/cm2/s
              Error 4.79e-01 2.82e-01 1.61e-01 3.85e-01 7.83e-01 7.63e-01   ph/cm2/s
 
Fluence   Cutoff-PL 4.34e-06 7.13e-06 8.86e-06 2.17e-05 2.65e-05 4.20e-05   erg/cm2
              Error 1.26e-07 1.52e-07 1.09e-07 6.83e-07 3.21e-07 6.21e-07   erg/cm2
Peak flux Cutoff-PL 1.24e+01 1.36e+01 9.66e+00 7.90e+00 3.95e+01 4.35e+01   ph/cm2/s
              Error 6.54e-01 2.90e-01 2.05e-01 7.65e-01 8.78e-01 1.28e+00   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 1.25e+01 1.35e+01 9.65e+00 8.01e+00 3.95e+01 4.37e+01   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    1.684    0.024    -      -           3.68e-02 4.73e-04   29.800 57
CPL   1.682    0.000    10000.0    0.0      3.69e-02 4.35e-04   29.970 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.534    0.030    -      -           3.22e-01 5.16e-03   71.830 57
CPL   1.223    0.123     149.1   40.4      4.36e-01 5.06e-02   51.880 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: 46.720000 sec.
T50 in the 50-300 keV band: 24.128000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   77.548   -0.272   77.276
T90    56.328    4.720   61.048
T50    25.088   17.924   43.012
Peak    1.000   40.452   41.452

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
   37.9613   -71.2971   0.0022    29.1533  -162.8732         4.7682824     85.490 TRIG_00309010                 
 
Foreground time interval of the image:
 -0.272   9.605 (delta_t =   9.877 [sec])
Background time interval of the image:
-239.296 -177.283 (delta_t =  62.013 [sec])
-119.296  -0.272 (delta_t = 119.024 [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 0.064000

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 0.064000

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 0.064000

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   77.276 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.68437     ( -0.0239838   0.0238418 )
Norm@50keV  : 3.67948E-02    ( -0.000473709   0.000471994 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          29.80 using 59 PHA bins.
# Reduced chi-squared =         0.5229 for     57 degrees of freedom 
# Null hypothesis probability =   9.988905e-01
 
Photon flux (15-150 keV)    in 77.55 sec: 4.86036 ( -0.0860878  0.086638 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.64534e-05 ( -3.22267e-07  3.22555e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.272 sec. to   77.276 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.68239     (     )
Epeak [keV] : 1.00000E+04      (   )
Norm@50keV  : 3.68643E-02    ( -0.000435364   0.000435196 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          29.97 using 59 PHA bins.
# Reduced chi-squared =         0.5352 for     56 degrees of freedom 
# Null hypothesis probability =   9.983093e-01
 
Photon flux (15-150 keV)    in 77.55 sec: 4.85827 ( -0.088  0.08369 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.64629e-05 ( -3.24702e-07  3.16326e-07 ) ergs/cm2

Band function

Time interval is from   -0.272 sec. to   77.276 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.33729   ( 1.33752   1.33752 )
beta        : -1.68438    ( -0.0239261   0.0239847 )
Epeak [keV] : 31.6931      ( -31.5512 -31.5512 )
Norm@50keV   : 7.63395E-02    ( -0.0257243   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          29.80 using 59 PHA bins.
# Reduced chi-squared =         0.5419 for     55 degrees of freedom 
# Null hypothesis probability =   9.978089e-01
 
Photon flux (15-150 keV)    in 77.55 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]    : 19.6542  (  )
R^2/D10^2   : 0.180011  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =        1833.21 using 59 PHA bins.
# Reduced chi-squared =        32.1615 for     57 degrees of freedom 
# Null hypothesis probability =   0.000000e+00
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.047e-06   3.180e-08
25- 50  5.153e-06   1.097e-07
50-150  1.472e-05   2.133e-07
15-150  2.092e-05   2.792e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.066       (      )
Norm        : 18.6240       (-0.224487     0.38414)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         106.31 using 59 PHA bins.
# Reduced chi-squared =         1.8650 for     57 degrees of freedom 
# Null hypothesis probability =   8.132735e-05
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.596e-06   5.971e-08
25- 50  6.917e-06   1.062e-07
50-150  1.517e-05   2.520e-07
15-150  2.568e-05   4.226e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.77709        (-0.324332      0.335008)
R1^2/D10^2  : 3.82585        (-0.57705      0.700589)
kT2 [keV]   : 30.8589        (-1.17519      1.31354)
R2^2/D10^2  : 2.93489E-02    (-0.00413353   0.00452528)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.01 using 59 PHA bins.
# Reduced chi-squared =          1.091 for     55 degrees of freedom 
# Null hypothesis probability =   2.989369e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.508e-06   1.838e-07
25- 50  7.367e-06   1.516e-07
50-150  1.509e-05   2.443e-07
15-150  2.596e-05   4.188e-07

Peak spectrum fit

Power-law model

Time interval is from   40.452 sec. to   41.452 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.53419     ( -0.0296983   0.0296656 )
Norm@50keV  : 0.322247    ( -0.00516307   0.00516064 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.83 using 59 PHA bins.
# Reduced chi-squared =          1.260 for     57 degrees of freedom 
# Null hypothesis probability =   8.931898e-02
 
Photon flux (15-150 keV)    in 1 sec: 40.6096 ( -0.780867  0.785074 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.04069e-06 ( -4.83278e-08  4.83318e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   40.452 sec. to   41.452 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.22252     ( -0.124313   0.121139 )
Epeak [keV] : 149.110      ( -25.8091 54.9217 )
Norm@50keV  : 0.435706    ( -0.0470758   0.0540706 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.88 using 59 PHA bins.
# Reduced chi-squared =         0.9265 for     56 degrees of freedom 
# Null hypothesis probability =   6.313722e-01
 
Photon flux (15-150 keV)    in 1 sec: 39.4673 ( -0.8753  0.8813 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.99634e-06 ( 0  0 ) ergs/cm2

Band function

Time interval is from   40.452 sec. to   41.452 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.22727   ( -0.115008   0.125609 )
beta        : -9.37167    ( 9.37167   19.3717 )
Epeak [keV] : 150.133      ( -20.8716 39.8064 )
Norm@50keV   : 0.434226    ( -0.0451439   0.0278406 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.89 using 59 PHA bins.
# Reduced chi-squared =         0.9435 for     55 degrees of freedom 
# Null hypothesis probability =   5.941696e-01
 
Photon flux (15-150 keV)    in 1 sec: 39.5097 (    ) 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]    : 18.3919  (  )
R^2/D10^2   : 2.15488  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         818.87 using 59 PHA bins.
# Reduced chi-squared =         14.366 for     57 degrees of freedom 
# Null hypothesis probability =  1.956994e-135
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.449e-07   5.100e-09
25- 50  6.809e-07   1.640e-08
50-150  1.681e-06   4.000e-08
15-150  2.507e-06   4.200e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 166.668       (-2.63284     2.63269)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          72.01 using 59 PHA bins.
# Reduced chi-squared =          1.263 for     57 degrees of freedom 
# Null hypothesis probability =   8.700650e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.151e-07   8.100e-09
25- 50  7.985e-07   1.525e-08
50-150  1.751e-06   3.500e-08
15-150  2.965e-06   5.900e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.88928        (-0.475626      0.49705)
R1^2/D10^2  : 26.1035        (-4.96807      6.46344)
kT2 [keV]   : 28.6726        (-1.42751      1.65548)
R2^2/D10^2  : 0.365179    (-0.0689449   0.0775452)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.99 using 59 PHA bins.
# Reduced chi-squared =         0.8362 for     55 degrees of freedom 
# Null hypothesis probability =   8.014097e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.390e-07   2.040e-08
25- 50  7.887e-07   2.505e-08
50-150  1.849e-06   6.150e-08
15-150  2.977e-06   7.250e-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: 1.18761     ( -0.0395363   0.0393791 )
Norm@50keV  : 3.13594E-02    ( -0.000664033   0.000662793 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.18 using 59 PHA bins.
# Reduced chi-squared =          1.056 for     57 degrees of freedom 
# Null hypothesis probability =   3.613006e-01
 
Photon flux (15-150 keV)    in 9.877 sec: 3.67466 ( -0.0843345  0.0845532 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.1535e-06 ( -6.79154e-08  6.79603e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.12063     ( -0.155806   0.0819588 )
Epeak [keV] : 787.303      ( -787.399 -787.399 )
Norm@50keV  : 3.34654E-02    ( -0.00110169   0.00530014 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.62 using 59 PHA bins.
# Reduced chi-squared =          1.065 for     56 degrees of freedom 
# Null hypothesis probability =   3.454730e-01
 
Photon flux (15-150 keV)    in 9.877 sec: 3.65750 ( -0.0919  0.0921 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.14526e-06 ( -7.1786e-08  6.87538e-08 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.684231   ( -2.54516   -0.68561 )
beta        : -1.21051    ( -0.0499829   0.0462864 )
Epeak [keV] : 39.0086      ( -12.952 146.853 )
Norm@50keV   : 0.651619    ( -0.657724   748.405 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.82 using 59 PHA bins.
# Reduced chi-squared =          1.033 for     55 degrees of freedom 
# Null hypothesis probability =   4.069058e-01
 
Photon flux (15-150 keV)    in 9.877 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)  = 7.11e-06
S(50-100 keV) = 8.85e-06

T90 vs. Hardness ratio plot

T90                                   = 56.3280000090599 sec.
Hardness ratio (energy fluence ratio) = 1.24473

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.14318
Count Ratio (50-100 keV) / (15-25 keV) = 0.756202

Mask shadow pattern

IMX = -5.330752492201082E-01, IMY = 1.642679042824512E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.064000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.064000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.064000

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:
-239.296000 -177.282900
-119.296000 -0.272000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
135.6017 -40.6155    2.3  29.7   61.1   1.4101   5.1    4.9	Vela X-1                      
170.4405 -60.7496   22.6  37.9  113.2   0.2501   0.5    8.4	Cen X-3                       
115.8915  -3.6317    3.6  53.8    8.2   2.3576   3.2 ------	UNKNOWN                       
 95.8314   1.4747    2.3  56.4  -16.9   3.5180   4.9 ------	UNKNOWN                       
 79.3285 -13.8883    2.9  43.1  -40.7   1.3927   3.9 ------	UNKNOWN                       
 44.1905 -34.0300    3.6  41.1  -98.1   3.1232   3.2 ------	UNKNOWN

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

Time interval of the image:
-0.272000 9.604620
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
135.4793 -40.4240    7.7  29.8   60.6   0.1291   1.5    8.2	Vela X-1                      
170.6707 -60.5928    0.0  38.1  113.0  -0.0429  -0.3   10.6	Cen X-3                       
 37.9613 -71.2971    0.1  29.2 -162.9   4.7680  85.6 ------	UNKNOWN                       
 48.6663 -57.8381    2.5  25.8 -132.7   0.2760   4.6 ------	UNKNOWN                       
 47.0122 -54.3766    2.1  27.7 -126.0   0.3541   5.6 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
59.204590 209.804600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
299.4399 -39.5621    2.6  55.5  175.3   2.9640   4.4 ------	UNKNOWN                       
100.7669 -34.8174    2.5  48.6    4.2   1.4743   4.6 ------	UNKNOWN                       
 37.9321 -71.3071    0.6   0.1 -119.0   2.9805  20.8 ------	UNKNOWN                       
345.3337 -54.2699    2.6  28.1 -153.2   0.6655   4.4 ------	UNKNOWN                       
 61.0827 -22.3999    3.0  50.7  -44.5   3.2968   3.8 ------	UNKNOWN

Plot creation:
Sun May 31 07:51:23 EDT 2015