batgrbproduct analysis for trigger=524128

batgrbproduct Analysis for Trigger=524128

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 04:09:39 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger524128
======================================================================

  Trigger: 00524128      Segment: 000

  BAT Trigger Time: 361159528   [s; MET]
      Trigger Stop: 361159592   [s; MET]
               UTC: 2012-06-12T02:05:19.691840    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 126.726052283175   Dec: -17.577825111582  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.4
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    8.4

  Flight Position:   [ source = BAT ]
    RA: 126.726052283175   Dec: -17.577825111582  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 126.72284837313   Dec: -17.597999107596  [deg; J2000]  
        { 08h 26m 53.5s , -17d 35' 52.8" }
         +/- 1.69675414180813 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.67757012647635 [arcmin] (formal 1-sigma fit error)
    SNR: 14.2919455944608
 
  Angular difference between Flight and Ground position is 1.224232 arcmin
 
  Partial Coding Fraction: 0.671875    [ including projection effects ]

  Duration
     T90: 90.2839999198914 +/- 13.5885753730475
        Measured from: 22.8240000009537
                   to: 113.107999920845     [s; relative to TRIGTIME]
     T50: 40.6639999747276 +/- 10.1964278336431
        Measured from: 34.4599999785423
                   to: 75.12399995327     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 30.1999999880791     
                   to: 31.1999999880791     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 16.972000002861     
                   to: 125.364000022411     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.484831   0.725222   0.623681   0.135028
           0.064498   0.066918   0.059616   0.053641 [error]
 Peak      0.012825   0.016530   0.018550   0.018308
           0.006579   0.006879   0.006267   0.005586 [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 1.50e-07 2.99e-07 4.65e-07 1.59e-06 1.30e-06 2.50e-06   erg/cm2
              Error 2.55e-08 3.14e-08 5.76e-08 4.24e-07 1.43e-07 4.67e-07   erg/cm2
Peak flux Power-law 9.91e-02 1.39e-01 1.44e-01 2.74e-01 4.68e-01 6.55e-01   ph/cm2/s
              Error 7.56e-02 6.36e-02 4.94e-02 2.40e-01 1.61e-01 2.42e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.32e-07 3.23e-07 4.85e-07 5.72e-07 1.22e-06 1.51e-06   erg/cm2
              Error 3.02e-08 3.93e-08 6.50e-08 5.86e-07 1.59e-07 6.00e-07   erg/cm2
Peak flux Cutoff-PL 1.03e-01 1.41e-01 1.43e-01 2.62e-01 4.71e-01 6.52e-01   ph/cm2/s
              Error 7.71e-02 6.38e-02 5.13e-02 2.92e-01 1.61e-01 2.54e-01   ph/cm2/s
 
Fluence        Band 1.28e-07 3.28e-07 4.69e-07 9.95e-07 1.23e-06 1.92e-06   erg/cm2
              Error 3.21e-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    1.364    0.166    -      -           1.23e-03 1.21e-04   51.010 57
CPL   0.608    0.755      92.2  169.9      2.95e-03 3.05e-03   47.420 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.948    0.687    -      -           4.08e-03 1.41e-03   50.850 57
CPL   0.961    0.000    9999.4    0.0      4.11e-03 0.00e+00   50.860 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: 39.552000 sec.
T50 in the 50-300 keV band: 22.464000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  108.392   16.972  125.364
T90    90.284   22.824  113.108
T50    40.664   34.460   75.124
Peak    1.000   30.200   31.200

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
  126.7228   -17.5980   0.0135    27.3339   150.9184         1.6218716     14.292 TRIG_00524128                 
 
Foreground time interval of the image:
 16.972  78.901 (delta_t =  61.929 [sec])
Background time interval of the image:
-239.000  16.972 (delta_t = 255.972 [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 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   16.972 sec. to  125.364 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.36362     ( -0.166609   0.166091 )
Norm@50keV  : 1.22891E-03    ( -0.000121504   0.000121259 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.01 using 59 PHA bins.
# Reduced chi-squared =         0.8950 for     57 degrees of freedom 
# Null hypothesis probability =   6.979789e-01
 
Photon flux (15-150 keV)    in 108.4 sec: 0.148470 ( -0.0147812  0.0148013 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.29715e-06 ( -1.42227e-07  1.43691e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from   16.972 sec. to  125.364 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.608427     ( -0.824489   0.684948 )
Epeak [keV] : 92.2412      ( -25.7881 314.034 )
Norm@50keV  : 2.94866E-03    ( -0.00158916   0.00451483 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.42 using 59 PHA bins.
# Reduced chi-squared =         0.8467 for     56 degrees of freedom 
# Null hypothesis probability =   7.860126e-01
 
Photon flux (15-150 keV)    in 108.4 sec: 0.143658 ( -0.015491  0.015455 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.22132e-06 ( -1.58594e-07  1.59771e-07 ) ergs/cm2

Band function

Time interval is from   16.972 sec. to  125.364 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.608362   ( -0.402784   0.553584 )
beta        : -10.00000    ( 10   20 )
Epeak [keV] : 92.2239      ( -20.0735 310.744 )
Norm@50keV   : 2.94883E-03    ( -0.000286022   0.00256902 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.42 using 59 PHA bins.
# Reduced chi-squared =         0.8621 for     55 degrees of freedom 
# Null hypothesis probability =   7.563991e-01
 
Photon flux (15-150 keV)    in 108.4 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.22977e-06 ( 0  0 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 15.8861  (-1.8235  2.13216)
R^2/D10^2   : 1.43481E-02  (-0.00506748   0.00755762)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.35 using 59 PHA bins.
# Reduced chi-squared =          1.059 for     57 degrees of freedom 
# Null hypothesis probability =   3.557310e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.129e-08   1.477e-08
25- 50  3.400e-07   4.661e-08
50-150  5.980e-07   1.067e-07
15-150  1.019e-06   1.347e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 0.614250       (-0.0600843     0.0600795)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.08 using 59 PHA bins.
# Reduced chi-squared =         0.9137 for     57 degrees of freedom 
# Null hypothesis probability =   6.596775e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.658e-07   6.215e-08
25- 50  3.190e-07   1.735e-07
50-150  6.995e-07   3.483e-07
15-150  1.184e-06   5.844e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.12694        (-3.46866      4.08934)
R1^2/D10^2  : 7.73291E-02        (-0.0500148      0.171065)
kT2 [keV]   : 25.5805        (-7.39658      38.0853)
R2^2/D10^2  : 2.12431E-03    (-0.00197629   0.00347012)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.44 using 59 PHA bins.
# Reduced chi-squared =         0.8625 for     55 degrees of freedom 
# Null hypothesis probability =   7.558094e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.271e-07   7.160e-08
25- 50  3.305e-07   1.672e-07
50-150  7.678e-07   4.040e-07
15-150  1.225e-06   6.070e-07

Peak spectrum fit

Power-law model

Time interval is from   30.200 sec. to   31.200 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.948242     ( -0.747316   0.62607 )
Norm@50keV  : 4.07755E-03    ( -0.00146373   0.00135762 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.85 using 59 PHA bins.
# Reduced chi-squared =         0.8921 for     57 degrees of freedom 
# Null hypothesis probability =   7.036367e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.468434 ( -0.160056  0.161686 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.4929e-08 ( -1.5432e-08  1.56148e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   30.200 sec. to   31.200 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.961081     (     )
Epeak [keV] : 9999.36      (   )
Norm@50keV  : 4.11471E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.86 using 59 PHA bins.
# Reduced chi-squared =         0.9082 for     56 degrees of freedom 
# Null hypothesis probability =   6.692330e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.471342 ( -0.163053  0.158745 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.48745e-08 ( -1.5381e-08  1.54306e-08 ) ergs/cm2

Band function

Time interval is from   30.200 sec. to   31.200 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.836378   ( 0.836355   0.836355 )
beta        : -0.948367    ( 0.948223   0.747929 )
Epeak [keV] : 29.0132      ( -28.9326 -28.9326 )
Norm@50keV   : 6.30041E-03    ( -0.00352938   798.148 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.85 using 59 PHA bins.
# Reduced chi-squared =         0.9246 for     55 degrees of freedom 
# Null hypothesis probability =   6.337900e-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]    : 26.5272  (-11.279  36.9106)
R^2/D10^2   : 9.17131E-03  (-0.00911819   0.0424311)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.90 using 59 PHA bins.
# Reduced chi-squared =         0.9456 for     57 degrees of freedom 
# Null hypothesis probability =   5.921157e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.086e-09   6.965e-10
25- 50  6.341e-09   3.941e-09
50-150  3.273e-08   2.067e-08
15-150  4.016e-08   2.529e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.362       (-105.769      -199.363)
Norm        : 1.94743       (-0.661191     0.661222)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.74 using 59 PHA bins.
# Reduced chi-squared =         0.9428 for     57 degrees of freedom 
# Null hypothesis probability =   5.980955e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.849e-09   3.068e-09
25- 50  9.328e-09   5.765e-09
50-150  2.046e-08   1.291e-08
15-150  3.464e-08   2.175e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.18850        (-7.21988      17.4806)
R1^2/D10^2  : 0.395706        (-0.37843      -0.387159)
kT2 [keV]   : 50.3573        (-46.5503      -50.9412)
R2^2/D10^2  : 1.43009E-03    (-0.00132498   0.0144372)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.63 using 59 PHA bins.
# Reduced chi-squared =         0.9206 for     55 degrees of freedom 
# Null hypothesis probability =   6.419968e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.768e-09   2.525e-09
25- 50  7.712e-09   4.422e-09
50-150  3.596e-08   2.000e-08
15-150  4.744e-08   2.519e-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: 1.22279     ( -0.173523   0.170936 )
Norm@50keV  : 1.70963E-03    ( -0.00017095   0.000170949 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.58 using 59 PHA bins.
# Reduced chi-squared =          1.080 for     57 degrees of freedom 
# Null hypothesis probability =   3.157163e-01
 
Photon flux (15-150 keV)    in 61.93 sec: 0.201343 ( -0.0207877  0.0208411 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.06739e-06 ( -1.17178e-07  1.18095e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.430969     ( -0.889636   0.72881 )
Epeak [keV] : 106.404      ( -30.9615 448.943 )
Norm@50keV  : 4.03700E-03    ( -0.00217258   0.00612071 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.10 using 59 PHA bins.
# Reduced chi-squared =          1.038 for     56 degrees of freedom 
# Null hypothesis probability =   3.977903e-01
 
Photon flux (15-150 keV)    in 61.93 sec: 0.193999 ( -0.022063  0.02193 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.01412e-06 ( -1.29006e-07  1.2918e-07 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.430922   ( -0.387733   0.649829 )
beta        : -10.00000    ( 10   20 )
Epeak [keV] : 106.386      ( -25.9876 446.37 )
Norm@50keV   : 4.03723E-03    ( -0.00217295   0.00302378 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.10 using 59 PHA bins.
# Reduced chi-squared =          1.056 for     55 degrees of freedom 
# Null hypothesis probability =   3.617671e-01
 
Photon flux (15-150 keV)    in 61.93 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)  = 2.99e-07
S(50-100 keV) = 4.65e-07

T90 vs. Hardness ratio plot

T90                                   = 90.2839999198914 sec.
Hardness ratio (energy fluence ratio) = 1.55518

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.49582
Count Ratio (50-100 keV) / (15-25 keV) = 1.28639

Mask shadow pattern

IMX = -4.517223554067246E-01, IMY = -2.512359227247116E-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:
-239.000000 16.972000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
147.1726 -13.5247    2.3  29.4  108.0   1.5486   4.9 ------	UNKNOWN                       
100.9518 -22.6149    3.5  42.3 -173.6   1.0475   3.3 ------	UNKNOWN                       
 79.2055 -21.6409    5.1  57.9 -156.9   2.6588   2.3 ------	UNKNOWN                       
 77.6460 -11.6699    3.8  55.2 -145.2   4.1832   3.0 ------	UNKNOWN                       
 84.3511  11.8679    4.0  43.8 -116.5   2.5840   2.9 ------	UNKNOWN                       
 82.3997   6.8401    3.2  46.1 -123.4   3.3471   3.6 ------	UNKNOWN

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

Time interval of the image:
16.972000 78.900590
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
166.6933  25.2191    2.9  39.1   27.9   0.6558   4.0 ------	UNKNOWN                       
126.7229 -17.5980    0.8  27.3  150.9   1.6218  14.3 ------	UNKNOWN                       
145.2670  60.7542    2.4  52.5  -23.7   1.1840   4.9 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
127.500590 963.118800
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
135.5392 -40.5388    0.7  24.2  123.0   9.1276  15.5    1.1	Vela X-1                      
146.8778 -41.4848    2.3  29.5  107.9   3.7907   5.1 ------	UNKNOWN                       
 86.7757 -54.5503    2.4  48.0  169.6   5.7952   4.8 ------	UNKNOWN                       
138.1546   0.9231    3.2  21.6   -8.0   1.6970   3.6 ------	UNKNOWN                       
 84.4792  -3.0550    4.8  43.9 -116.1   5.8064   2.4 ------	UNKNOWN

Plot creation:
Sat May 30 19:25:01 EDT 2015