batgrbproduct analysis for trigger=315819

batgrbproduct Analysis for Trigger=315819

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 00:45:45 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger315819
======================================================================

  Trigger: 00315819      Segment: 000

  BAT Trigger Time: 236804416.512   [s; MET]
      Trigger Stop: 236804417.536   [s; MET]
               UTC: 2008-07-03T19:00:13.598700    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 101.866687854747   Dec: -63.2222518285121  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.3
     Image Trigger?:     NO
     Rate S/N Ratio:     11.7898261225516  [ if not an image trigger ]
     Image S/N Ratio:    7.3

  Flight Position:   [ source = BAT ]
    RA: 101.866687854747   Dec: -63.2222518285121  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 101.817890032891   Dec: -63.2157827632776  [deg; J2000]  
        { 06h 47m 16.3s , -63d 12' 56.8" }
         +/- 2.16522293627602 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.08686934545919 [arcmin] (formal 1-sigma fit error)
    SNR: 10.0885540328859
 
  Angular difference between Flight and Ground position is 1.375157 arcmin
 
  Partial Coding Fraction: 0.5390625    [ including projection effects ]

  Duration
     T90: 3.5160000026226 +/- 0.805366966222884
        Measured from: -1.47200000286102
                   to: 2.04399999976158     [s; relative to TRIGTIME]
     T50: 1.66000002622604 +/- 0.504983148947092
        Measured from: -0.719999998807907
                   to: 0.940000027418137     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.0439999997615814     
                   to: 1.04399999976158     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -1.7039999961853     
                   to: 2.20800000429153     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.063412   0.141999   0.091808   0.009345
           0.014623   0.015348   0.013917   0.011617 [error]
 Peak      0.018656   0.048664   0.036362   0.005728
           0.007565   0.007995   0.007281   0.005812 [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 2.64e-08 5.02e-08 7.35e-08 2.31e-07 2.08e-07 3.81e-07   erg/cm2
              Error 6.07e-09 7.38e-09 1.28e-08 8.35e-08 3.19e-08 9.38e-08   erg/cm2
Peak flux Power-law 2.60e-01 3.02e-01 2.53e-01 3.58e-01 9.44e-01 1.17e+00   ph/cm2/s
              Error 9.38e-02 6.99e-02 5.54e-02 1.57e-01 1.95e-01 2.36e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.34e-08 5.70e-08 7.59e-08 5.59e-08 1.91e-07 2.12e-07   erg/cm2
              Error 6.79e-09 1.05e-08 1.57e-08 1.09e-07 3.72e-08 1.07e-07   erg/cm2
Peak flux Cutoff-PL 2.27e-01 3.34e-01 2.73e-01 1.45e-01 9.26e-01 9.79e-01   ph/cm2/s
              Error 1.02e-01 8.85e-02 6.57e-02 1.55e-01 1.95e-01 2.90e-01   ph/cm2/s
 
Fluence        Band 2.06e-08 6.34e-08 6.91e-08 1.32e-07 1.96e-07 2.86e-07   erg/cm2
              Error 7.50e-09 -------- 1.47e-08 -------- 3.39e-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    1.448    0.223    -      -           5.56e-03 7.84e-04   61.990 57
CPL   0.409    1.202      71.3  223.4      2.01e-02 5.89e-02   58.890 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.256    0.315    -      -           7.97e-03 1.57e-03   71.560 57
CPL   0.389    1.360      92.0  -29.0      2.24e-02 8.81e-02   70.100 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: 2.304000 sec.
T50 in the 50-300 keV band: 1.536000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    3.912   -1.704    2.208
T90     3.516   -1.472    2.044
T50     1.660   -0.720    0.940
Peak    1.000    0.044    1.044

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
  101.8179   -63.2158   0.0191    38.9834     1.5785         0.2882383     10.089 TRIG_00315819                 
 
Foreground time interval of the image:
 -1.704   2.208 (delta_t =   3.912 [sec])
Background time interval of the image:
-227.611  -1.704 (delta_t = 225.907 [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)

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   -1.704 sec. to    2.208 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.44811     ( -0.223518   0.223006 )
Norm@50keV  : 5.55752E-03    ( -0.000785486   0.000782991 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.99 using 59 PHA bins.
# Reduced chi-squared =          1.088 for     57 degrees of freedom 
# Null hypothesis probability =   3.026274e-01
 
Photon flux (15-150 keV)    in 3.912 sec: 0.684562 ( -0.0974064  0.097613 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.08119e-07 ( -3.17153e-08  3.20623e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -1.704 sec. to    2.208 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.409375     ( -1.39761   1.00561 )
Epeak [keV] : 71.3058      ( -20.2231 426.524 )
Norm@50keV  : 2.01156E-02    ( -0.0201184   0.0976562 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.89 using 59 PHA bins.
# Reduced chi-squared =          1.052 for     56 degrees of freedom 
# Null hypothesis probability =   3.703364e-01
 
Photon flux (15-150 keV)    in 3.912 sec: 0.664137 ( -0.099949  0.099924 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.90548e-07 ( -3.71969e-08  3.71562e-08 ) ergs/cm2

Band function

Time interval is from   -1.704 sec. to    2.208 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.94605   ( -4.61171   -4.94605 )
beta        : -1.91250    ( -0.600149   0.35159 )
Epeak [keV] : 33.7269      ( -7.38926 6.22522 )
Norm@50keV   : 96.1113    ( -12.9551   359.453 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.98 using 59 PHA bins.
# Reduced chi-squared =         0.9633 for     55 degrees of freedom 
# Null hypothesis probability =   5.520825e-01
 
Photon flux (15-150 keV)    in 3.912 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.95563e-07 ( -1.95535e-07  -3.37093e-08 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 13.4921  (-2.02986  2.52726)
R^2/D10^2   : 0.118242  (-0.054445   0.0938725)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.91 using 59 PHA bins.
# Reduced chi-squared =          1.121 for     57 degrees of freedom 
# Null hypothesis probability =   2.468484e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.784e-08   5.191e-09
25- 50  6.389e-08   1.404e-08
50-150  7.510e-08   2.310e-08
15-150  1.568e-07   3.386e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-80.9727      -199.363)
Norm        : 2.84335       (-0.393785     0.39379)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.80 using 59 PHA bins.
# Reduced chi-squared =          1.067 for     57 degrees of freedom 
# Null hypothesis probability =   3.407582e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.770e-08   1.585e-08
25- 50  5.328e-08   2.997e-08
50-150  1.169e-07   6.557e-08
15-150  1.978e-07   1.103e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.91773        (-2.61025      2.80274)
R1^2/D10^2  : 0.282086        (-0.139988      0.233757)
kT2 [keV]   : 46.3984        (-53.3751      -61.0561)
R2^2/D10^2  : 1.08412E-03    (-0.000423699   0.0116688)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.90 using 59 PHA bins.
# Reduced chi-squared =         0.9800 for     55 degrees of freedom 
# Null hypothesis probability =   5.166345e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.310e-08   1.239e-08
25- 50  6.166e-08   3.146e-08
50-150  1.125e-07   6.102e-08
15-150  1.973e-07   9.753e-08

Peak spectrum fit

Power-law model

Time interval is from    0.044 sec. to    1.044 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.25650     ( -0.322382   0.307315 )
Norm@50keV  : 7.97299E-03    ( -0.00157563   0.00157349 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.56 using 59 PHA bins.
# Reduced chi-squared =          1.255 for     57 degrees of freedom 
# Null hypothesis probability =   9.289216e-02
 
Photon flux (15-150 keV)    in 1 sec: 0.944021 ( -0.194109  0.1952 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.9655e-08 ( -1.6607e-08  1.67586e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    0.044 sec. to    1.044 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.389097     ( -1.70775   1.01288 )
Epeak [keV] : 91.9716      ( -33.9537 -92.0092 )
Norm@50keV  : 2.23802E-02    ( -0.0223561   0.153817 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.10 using 59 PHA bins.
# Reduced chi-squared =          1.252 for     56 degrees of freedom 
# Null hypothesis probability =   9.739486e-02
 
Photon flux (15-150 keV)    in 1 sec: 0.926239 ( -0.194621  0.196101 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.50419e-08 ( -1.8889e-08  1.83555e-08 ) ergs/cm2

Band function

Time interval is from    0.044 sec. to    1.044 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -4.48323   -5 )
beta        : -1.69832    ( -0.603739   0.442699 )
Epeak [keV] : 33.4766      ( -7.16954 7.84054 )
Norm@50keV   : 145.339    ( -39.0985   449.153 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.56 using 59 PHA bins.
# Reduced chi-squared =          1.174 for     55 degrees of freedom 
# Null hypothesis probability =   1.772310e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.66898e-08 ( -7.66828e-08  -1.65881e-08 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 15.7351  (-3.54905  5.11626)
R^2/D10^2   : 9.85723E-02  (-0.0610472   0.14126)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          73.58 using 59 PHA bins.
# Reduced chi-squared =          1.291 for     57 degrees of freedom 
# Null hypothesis probability =   6.877739e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.064e-09   2.315e-09
25- 50  2.101e-08   8.205e-09
50-150  3.612e-08   1.437e-08
15-150  6.219e-08   2.102e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 3.99217       (-0.795807     0.795722)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          72.99 using 59 PHA bins.
# Reduced chi-squared =          1.281 for     57 degrees of freedom 
# Null hypothesis probability =   7.521461e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.942e-09   5.795e-09
25- 50  1.912e-08   1.093e-08
50-150  4.194e-08   2.435e-08
15-150  7.101e-08   4.101e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 51.5165        (-32.1425      -53.232)
R1^2/D10^2  : 1.53474E-03        (-0.0012745      0.026232)
kT2 [keV]   : 10.2254        (-3.52781      4.57043)
R2^2/D10^2  : 0.333216    (-0.224495   0.784586)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.91 using 59 PHA bins.
# Reduced chi-squared =          1.216 for     55 degrees of freedom 
# Null hypothesis probability =   1.303091e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.581e-09   4.560e-09
25- 50  2.149e-08   1.288e-08
50-150  4.995e-08   2.768e-08
15-150  7.903e-08   3.710e-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: 1.44811     ( -0.223518   0.223006 )
Norm@50keV  : 5.55752E-03    ( -0.000785486   0.000782991 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.99 using 59 PHA bins.
# Reduced chi-squared =          1.088 for     57 degrees of freedom 
# Null hypothesis probability =   3.026274e-01
 
Photon flux (15-150 keV)    in 3.912 sec: 0.684562 ( -0.0974064  0.097613 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.08119e-07 ( -3.17153e-08  3.20623e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.409375     ( -1.39761   1.00561 )
Epeak [keV] : 71.3058      ( -20.2231 426.524 )
Norm@50keV  : 2.01156E-02    ( -0.0201184   0.0976562 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.89 using 59 PHA bins.
# Reduced chi-squared =          1.052 for     56 degrees of freedom 
# Null hypothesis probability =   3.703364e-01
 
Photon flux (15-150 keV)    in 3.912 sec: 0.664137 ( -0.099949  0.099924 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.90548e-07 ( -3.71969e-08  3.71562e-08 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.94605   ( -4.61171   -4.94605 )
beta        : -1.91250    ( -0.600149   0.35159 )
Epeak [keV] : 33.7269      ( -7.38926 6.22522 )
Norm@50keV   : 96.1113    ( -12.9551   359.453 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.98 using 59 PHA bins.
# Reduced chi-squared =         0.9633 for     55 degrees of freedom 
# Null hypothesis probability =   5.520825e-01
 
Photon flux (15-150 keV)    in 3.912 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.95563e-07 ( -1.95535e-07  -3.37093e-08 ) ergs/cm2

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

S(25-50 keV)  = 5.02e-08
S(50-100 keV) = 7.35e-08

T90 vs. Hardness ratio plot

T90                                   = 3.5160000026226 sec.
Hardness ratio (energy fluence ratio) = 1.46414

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 2.23931
Count Ratio (50-100 keV) / (15-25 keV) = 1.4478

Mask shadow pattern

IMX = 8.089964360281273E-01, IMY = -2.229359305045227E-02

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:
-227.611410 -1.704000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
  7.2682 -15.5844    2.4  46.0  139.1   2.9705   4.8 ------	UNKNOWN                       
 23.2523 -34.0071    2.6  24.6  122.1   0.8735   4.4 ------	UNKNOWN                       
 36.0451 -59.5958    2.6  25.1   54.8   0.8903   4.4 ------	UNKNOWN                       
107.2370 -25.5319    2.5  46.8  -54.3   4.0600   4.6 ------	UNKNOWN

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

Time interval of the image:
-1.704000 2.208000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
101.8179 -63.2158    1.1  39.0    1.6   0.2883  10.1 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
78.388600 962.571300
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
135.7073 -40.5020    8.9  30.2  -33.7   0.7371   1.3    8.7	Vela X-1                      
170.5993 -60.6404    5.0  30.9   26.1   1.2440   2.3    8.4	Cen X-3                       
186.6620 -62.7788    0.3  35.7   37.5  25.3118  36.1    0.5	GX 301-2                      
  6.1423 -47.2621    3.1  51.3  148.8   9.5492   3.8 ------	UNKNOWN                       
 97.0096 -36.9597    6.0  26.4  -99.9   1.3687   2.0 ------	UNKNOWN                       
138.3493 -18.9697    3.5  50.7  -44.5  10.0803   3.4 ------	UNKNOWN                       
 96.9287 -22.2416    6.5  41.1  -98.1   6.6745   1.8 ------	UNKNOWN

Plot creation:
Sun May 31 07:06:35 EDT 2015