batgrbproduct analysis for trigger=337914

batgrbproduct Analysis for Trigger=337914

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 Jan 19 19:49:40 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger337914
======================================================================

  Trigger: 00337914      Segment: 000

  BAT Trigger Time: 251614443.328   [s; MET]
      Trigger Stop: 251614443.584   [s; MET]
               UTC: 2008-12-22T04:53:59.974180    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 22.7514205034355   Dec: -34.1283751474552  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.08
     Image Trigger?:     NO
     Rate S/N Ratio:     22.0454076850486  [ if not an image trigger ]
     Image S/N Ratio:    8.08

  Flight Position:   [ source = BAT ]
    RA: 22.7514205034355   Dec: -34.1283751474552  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 22.7485251076996   Dec: -34.0943365765093  [deg; J2000]  
        { 01h 30m 59.6s , -34d 05' 39.6" }
         +/- 0.439601297412941 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.135195703253786 [arcmin] (formal 1-sigma fit error)
    SNR: 98.4088470214885
 
  Angular difference between Flight and Ground position is 2.047373 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 33 +/- 4
        Measured from: 0.671999990940094
                   to: 33.6719999909401     [s; relative to TRIGTIME]
     T50: 6 +/- 1
        Measured from: 2.67199999094009
                   to: 8.67199999094009     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 3.67199999094009     
                   to: 4.67199999094009     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -1.32800000905991     
                   to: 63.6719999909401     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     2.132176   3.049748   2.520448   0.608099
           0.041278   0.044379   0.040031   0.032145 [error]
 Peak      0.211433   0.353157   0.334227   0.088667
           0.007539   0.009080   0.008855   0.006119 [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 6.36e-07 1.23e-06 1.86e-06 6.05e-06 5.22e-06 9.78e-06   erg/cm2
              Error 2.71e-08 3.01e-08 4.31e-08 3.34e-07 1.07e-07 3.51e-07   erg/cm2
Peak flux Power-law 2.00e+00 2.41e+00 2.10e+00 3.15e+00 7.62e+00 9.66e+00   ph/cm2/s
              Error 1.19e-01 8.64e-02 7.19e-02 2.32e-01 2.36e-01 3.03e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.00e-07 1.24e-06 1.89e-06 4.65e-06 5.16e-06 8.39e-06   erg/cm2
              Error 3.65e-08 3.14e-08 5.02e-08 8.70e-07 1.18e-07 8.73e-07   erg/cm2
Peak flux Cutoff-PL 1.80e+00 2.46e+00 2.20e+00 2.11e+00 7.46e+00 8.57e+00   ph/cm2/s
              Error 1.53e-01 9.33e-02 8.78e-02 4.30e-01 2.49e-01 5.06e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band -------- -------- -------- 2.12e+00 -------- 8.58e+00   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    1.410    0.038    -      -           8.33e-03 1.65e-04   43.990 57
CPL   1.198    0.155     217.9  217.1      1.03e-02 1.56e-03   38.290 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.197    0.053    -      -           6.50e-02 1.93e-03   57.560 57
CPL   0.786    0.221     166.3   77.3      9.96e-02 2.26e-02   46.490 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: 26.560000 sec.
T50 in the 50-300 keV band: 4.992000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   65.000   -1.328   63.672
T90    33.000    0.672   33.672
T50     6.000    2.672    8.672
Peak    1.000    3.672    4.672

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
   22.7485   -34.0943   0.0019    11.3178   177.1952         6.6018555     98.409 TRIG_00337914                 
 
Foreground time interval of the image:
 -1.328   9.773 (delta_t =  11.101 [sec])
Background time interval of the image:
-239.328  -1.328 (delta_t = 238.000 [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 0.256000

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 0.256000

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 0.256000

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   -1.328 sec. to   63.672 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.41002     ( -0.038309   0.0382673 )
Norm@50keV  : 8.33358E-03    ( -0.000165216   0.000165182 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.99 using 59 PHA bins.
# Reduced chi-squared =         0.7718 for     57 degrees of freedom 
# Null hypothesis probability =   8.964580e-01
 
Photon flux (15-150 keV)    in 65 sec: 1.01720 ( -0.0228409  0.0229161 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.22344e-06 ( -1.07171e-07  1.07372e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from   -1.328 sec. to   63.672 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.19803     ( -0.157448   0.152203 )
Epeak [keV] : 217.876      ( -68.0971 366.114 )
Norm@50keV  : 1.03043E-02    ( -0.00142233   0.00170758 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.29 using 59 PHA bins.
# Reduced chi-squared =         0.6838 for     56 degrees of freedom 
# Null hypothesis probability =   9.661298e-01
 
Photon flux (15-150 keV)    in 65 sec: 0.999449 ( -0.025736  0.025861 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.15764e-06 ( -1.18215e-07  1.17852e-07 ) ergs/cm2

Band function

Time interval is from   -1.328 sec. to   63.672 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.19803   ( -0.707208   4.87327 )
beta        : -10.00000    ( 10   20 )
Epeak [keV] : 217.843      ( -64.975 365.257 )
Norm@50keV   : 1.03031E-02    ( -0.000827176   0.00170746 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.29 using 59 PHA bins.
# Reduced chi-squared =         0.6962 for     55 degrees of freedom 
# Null hypothesis probability =   9.577776e-01
 
Photon flux (15-150 keV)    in 65 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]    : 18.5023  (  )
R^2/D10^2   : 5.50644E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         496.39 using 59 PHA bins.
# Reduced chi-squared =         8.7086 for     57 degrees of freedom 
# Null hypothesis probability =   2.284570e-71
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.431e-07   9.782e-09
25- 50  1.147e-06   3.348e-08
50-150  2.870e-06   1.001e-07
15-150  4.261e-06   9.490e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 4.26227       (-0.0844847     0.0844369)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         101.39 using 59 PHA bins.
# Reduced chi-squared =         1.7787 for     57 degrees of freedom 
# Null hypothesis probability =   2.708069e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.901e-07   1.528e-08
25- 50  1.327e-06   2.925e-08
50-150  2.911e-06   6.793e-08
15-150  4.929e-06   1.040e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.54398        (-0.610389      0.656293)
R1^2/D10^2  : 0.721386        (-0.17811      0.25185)
kT2 [keV]   : 28.7861        (-1.88746      2.3148)
R2^2/D10^2  : 1.01683E-02    (-0.00243717   0.00281904)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.15 using 59 PHA bins.
# Reduced chi-squared =         0.7301 for     55 degrees of freedom 
# Null hypothesis probability =   9.335018e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.482e-07   4.118e-08
25- 50  1.258e-06   5.493e-08
50-150  3.321e-06   1.326e-07
15-150  5.127e-06   1.797e-07

Peak spectrum fit

Power-law model

Time interval is from    3.672 sec. to    4.672 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.19660     ( -0.0531976   0.0531021 )
Norm@50keV  : 6.49538E-02    ( -0.00193208   0.00193196 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.56 using 59 PHA bins.
# Reduced chi-squared =          1.010 for     57 degrees of freedom 
# Null hypothesis probability =   4.543199e-01
 
Photon flux (15-150 keV)    in 1 sec: 7.62047 ( -0.235486  0.236003 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.59616e-07 ( -2.16097e-08  2.16569e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    3.672 sec. to    4.672 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.785548     ( -0.226475   0.21542 )
Epeak [keV] : 166.289      ( -39.5987 114.974 )
Norm@50keV  : 9.96149E-02    ( -0.0195116   0.0255905 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.49 using 59 PHA bins.
# Reduced chi-squared =         0.8301 for     56 degrees of freedom 
# Null hypothesis probability =   8.137136e-01
 
Photon flux (15-150 keV)    in 1 sec: 7.45941 ( -0.24868  0.24892 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.45244e-07 ( -2.3314e-08  2.3189e-08 ) ergs/cm2

Band function

Time interval is from    3.672 sec. to    4.672 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.785528   ( -0.114474   0.0934192 )
beta        : -10.00000    ( 10   20 )
Epeak [keV] : 166.264      ( -22.2971 114.873 )
Norm@50keV   : 9.96110E-02    ( -0.0183426   0.00580116 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.49 using 59 PHA bins.
# Reduced chi-squared =         0.8452 for     55 degrees of freedom 
# Null hypothesis probability =   7.862446e-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]    : 19.4674  (  )
R^2/D10^2   : 0.383720  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         211.83 using 59 PHA bins.
# Reduced chi-squared =         3.7164 for     57 degrees of freedom 
# Null hypothesis probability =   1.141623e-19
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.833e-08   1.735e-09
25- 50  1.386e-07   6.050e-09
50-150  3.877e-07   1.970e-08
15-150  5.546e-07   2.050e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 31.7181       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         176.29 using 59 PHA bins.
# Reduced chi-squared =         3.0929 for     57 degrees of freedom 
# Null hypothesis probability =   4.094128e-14
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.898e-08   2.500e-09
25- 50  1.519e-07   4.700e-09
50-150  3.332e-07   1.050e-08
15-150  5.641e-07   1.660e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.73465        (-1.05033      1.20295)
R1^2/D10^2  : 4.08019        (-1.44383      2.49736)
kT2 [keV]   : 29.0905        (-2.7071      3.74601)
R2^2/D10^2  : 8.69135E-02    (-0.029949   0.0358364)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.71 using 59 PHA bins.
# Reduced chi-squared =         0.8492 for     55 degrees of freedom 
# Null hypothesis probability =   7.793776e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.472e-08   7.230e-09
25- 50  1.423e-07   1.120e-08
50-150  4.483e-07   3.940e-08
15-150  6.454e-07   4.310e-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: 1.32845     ( -0.03053   0.0304667 )
Norm@50keV  : 3.87655E-02    ( -0.000644702   0.000644235 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.99 using 59 PHA bins.
# Reduced chi-squared =          1.228 for     57 degrees of freedom 
# Null hypothesis probability =   1.158058e-01
 
Photon flux (15-150 keV)    in 11.1 sec: 4.64994 ( -0.0874159  0.0876473 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.22336e-06 ( -7.0257e-08  7.02815e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.01144     ( -0.128595   0.125098 )
Epeak [keV] : 187.884      ( -36.7553 79.8796 )
Norm@50keV  : 5.25700E-02    ( -0.00581492   0.00670379 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.62 using 59 PHA bins.
# Reduced chi-squared =         0.9039 for     56 degrees of freedom 
# Null hypothesis probability =   6.779491e-01
 
Photon flux (15-150 keV)    in 11.1 sec: 4.53664 ( -0.09612  0.09661 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.16529e-06 ( -7.45254e-08  7.43922e-08 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.01143   ( -0.113133   0.15535 )
beta        : -10.0000    ( 10   1.77636e-15 )
Epeak [keV] : 187.856      ( -36.7365 79.8702 )
Norm@50keV   : 5.25655E-02    ( -0.00581508   0.00670547 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.62 using 59 PHA bins.
# Reduced chi-squared =         0.9204 for     55 degrees of freedom 
# Null hypothesis probability =   6.424940e-01
 
Photon flux (15-150 keV)    in 11.1 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)  = 1.23e-06
S(50-100 keV) = 1.86e-06

T90 vs. Hardness ratio plot

T90                                   = 33 sec.
Hardness ratio (energy fluence ratio) = 1.5122

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.43035
Count Ratio (50-100 keV) / (15-25 keV) = 1.1821

Mask shadow pattern

IMX = -1.999025555549942E-01, IMY = -9.793488143692878E-03

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.256000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.256000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.256000

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:
-239.328000 -1.328000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 56.0987 -33.1744    2.5  36.1  141.2   1.3390   4.6 ------	UNKNOWN                       
 52.9960 -50.8219    2.7  38.8  170.3   1.0603   4.3 ------	UNKNOWN                       
358.6813   3.6627    2.0  32.7   -5.0   1.1304   5.7  233.6	UNKNOWN

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

Time interval of the image:
-1.328000 9.772590
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 29.8956   9.8769    2.1  37.1   51.4   0.8007   5.6 ------	UNKNOWN                       
 22.7485 -34.0943    0.1  11.3  177.2   6.6018  98.4 ------	UNKNOWN                       
 27.5840 -51.5693    2.5  28.5 -167.5   0.3344   4.7 ------	UNKNOWN                       
342.0148 -15.4260    2.5  32.9  -52.5   0.4273   4.6 ------	UNKNOWN                       
327.9618  -3.4163    1.9  50.6  -45.2   1.8695   5.9 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
41.172590 962.775200
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
  3.7709  -6.5825    2.7  32.6   -5.1   2.2596   4.3  454.9	UNKNOWN                       
351.9699  12.9890    2.8  55.5   -5.5   5.8376   4.2 ------	UNKNOWN                       
 11.7039 -44.9014    2.3  13.7 -113.4   2.0909   5.0 ------	UNKNOWN                       
346.6504 -48.6096    2.9  30.3  -97.8   2.3700   4.0 ------	UNKNOWN                       
332.1966 -19.0877    4.0  47.1  -53.1   6.1514   2.9 ------	UNKNOWN                       
330.3708 -46.7781    5.2  41.0  -92.5   5.4521   2.2 ------	UNKNOWN                       
328.8770 -60.0872    2.6  43.1 -112.2  10.1298   4.5 ------	UNKNOWN

Plot creation:
Sun May 31 05:16:01 EDT 2015