batgrbproduct analysis for trigger=171931

batgrbproduct Analysis for Trigger=171931

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): Wed Jan 22 19:28:28 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger171931
======================================================================

  Trigger: 00171931      Segment: 000

  BAT Trigger Time: 155886381.056   [s; MET]
      Trigger Stop: 155886382.08   [s; MET]
               UTC: 2005-12-10T05:46:21.168500    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 330.196613815793   Dec: -57.6339823400996  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.97
     Image Trigger?:     NO
     Rate S/N Ratio:     15.7797338380595  [ if not an image trigger ]
     Image S/N Ratio:    8.97

  Flight Position:   [ source = BAT ]
    RA: 330.196613815793   Dec: -57.6339823400996  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 330.188381954684   Dec: -57.6241946318991  [deg; J2000]  
        { 22h 00m 45.2s , -57d 37' 27.1" }
         +/- 1.98445274791184 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.999622029534953 [arcmin] (formal 1-sigma fit error)
    SNR: 11.4266070050524
 
  Angular difference between Flight and Ground position is 0.644054 arcmin
 
  Partial Coding Fraction: 0.8984375    [ including projection effects ]

  Duration
     T90: 1.30000001192093 +/- 0.295194849441729
        Measured from: -0.203999996185303
                   to: 1.09600001573563     [s; relative to TRIGTIME]
     T50: 0.560000002384186 +/- 0.28677516664519
        Measured from: 0.240000009536743
                   to: 0.800000011920929     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.11599999666214     
                   to: 1.11599999666214     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.263999998569489     
                   to: 1.19600000977516     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.024784   0.039606   0.042895   0.015921
           0.005842   0.006308   0.005789   0.004936 [error]
 Peak      0.019171   0.030040   0.038293   0.011802
           0.004835   0.005329   0.004884   0.004177 [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 6.79e-09 1.65e-08 3.18e-08 1.51e-07 8.60e-08 2.06e-07   erg/cm2
              Error 2.10e-09 3.03e-09 5.39e-09 5.99e-08 1.41e-08 6.25e-08   erg/cm2
Peak flux Power-law 1.59e-01 2.26e-01 2.38e-01 4.63e-01 7.68e-01 1.09e+00   ph/cm2/s
              Error 5.35e-02 4.61e-02 3.78e-02 1.65e-01 1.22e-01 1.82e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.26e-09 1.67e-08 3.29e-08 1.04e-07 8.51e-08 1.60e-07   erg/cm2
              Error 2.61e-09 3.26e-09 6.50e-09 8.63e-08 1.46e-08 9.04e-08   erg/cm2
Peak flux Cutoff-PL 1.42e-01 2.27e-01 2.49e-01 3.39e-01 7.56e-01 9.58e-01   ph/cm2/s
              Error 6.82e-02 4.91e-02 4.82e-02 1.96e-01 1.27e-01 2.60e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   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    1.051    0.271    -      -           5.54e-03 8.42e-04   62.320 57
CPL   4.026    0.886     448.4    0.0      1.18e-04 0.00e+00   61.600 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.924    0.276    -      -           6.69e-03 1.05e-03   50.090 57
CPL   0.574    0.958     250.4    0.0      9.33e-03 1.19e-02   49.770 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: 0.832000 sec.
T50 in the 50-300 keV band: 0.448000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    1.460   -0.264    1.196
T90     1.300   -0.204    1.096
T50     0.560    0.240    0.800
Peak    1.000    0.116    1.116

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
  330.1884   -57.6242   0.0169    27.2103  -162.8858         0.1251672     11.427 TRIG_00171931                 
 
Foreground time interval of the image:
 -0.264   1.196 (delta_t =   1.460 [sec])
Background time interval of the image:
-299.056  -0.264 (delta_t = 298.792 [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   -0.264 sec. to    1.196 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.05057     ( -0.275885   0.266097 )
Norm@50keV  : 5.54247E-03    ( -0.000843977   0.000840262 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.32 using 59 PHA bins.
# Reduced chi-squared =          1.093 for     57 degrees of freedom 
# Null hypothesis probability =   2.926559e-01
 
Photon flux (15-150 keV)    in 1.46 sec: 0.640161 ( -0.099817  0.100344 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.59879e-08 ( -1.40363e-08  1.41419e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.264 sec. to    1.196 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 4.02558     ( -1.30639   0.466099 )
Epeak [keV] : 448.405      ( -260.309 -260.309 )
Norm@50keV  : 1.18182E-04    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.60 using 59 PHA bins.
# Reduced chi-squared =          1.100 for     56 degrees of freedom 
# Null hypothesis probability =   2.827561e-01
 
Photon flux (15-150 keV)    in 1.46 sec: 0.631259 ( -0.104645  0.103969 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.50507e-08 ( -1.4592e-08  1.45242e-08 ) ergs/cm2

Band function

Time interval is from   -0.264 sec. to    1.196 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.744803   ( -0.454057   1.05078 )
beta        : -10.0000    ( 10   10 )
Epeak [keV] : 243.447      ( -150.467 -243.447 )
Norm@50keV   : 7.50772E-03    ( -0.00271012   0.0156613 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.05 using 59 PHA bins.
# Reduced chi-squared =          1.128 for     55 degrees of freedom 
# Null hypothesis probability =   2.392765e-01
 
Photon flux (15-150 keV)    in 1.46 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]    : 23.0629  (-4.27594  5.72778)
R^2/D10^2   : 1.95416E-02  (-0.00970466   0.0179504)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.41 using 59 PHA bins.
# Reduced chi-squared =          1.200 for     57 degrees of freedom 
# Null hypothesis probability =   1.431303e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.747e-09   9.067e-10
25- 50  1.492e-08   4.616e-09
50-150  5.929e-08   1.732e-08
15-150  7.696e-08   1.931e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 2.63497       (-0.412399     0.412353)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          72.06 using 59 PHA bins.
# Reduced chi-squared =          1.264 for     57 degrees of freedom 
# Null hypothesis probability =   8.638367e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.585e-09   5.473e-09
25- 50  1.844e-08   1.036e-08
50-150  4.044e-08   2.268e-08
15-150  6.846e-08   3.828e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.07987        (-2.54877      5.41306)
R1^2/D10^2  : 3.64145        (-3.53146      2131.95)
kT2 [keV]   : 27.0312        (-5.93696      20.5987)
R2^2/D10^2  : 1.12978E-02    (-0.0094526   0.0107796)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.00 using 59 PHA bins.
# Reduced chi-squared =          1.109 for     55 degrees of freedom 
# Null hypothesis probability =   2.691216e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.323e-09   3.752e-09
25- 50  1.385e-08   5.774e-09
50-150  6.310e-08   2.827e-08
15-150  8.428e-08   3.270e-08

Peak spectrum fit

Power-law model

Time interval is from    0.116 sec. to    1.116 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.924194     ( -0.283785   0.26824 )
Norm@50keV  : 6.68892E-03    ( -0.00105681   0.00104246 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.09 using 59 PHA bins.
# Reduced chi-squared =         0.8787 for     57 degrees of freedom 
# Null hypothesis probability =   7.298975e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.767999 ( -0.121161  0.121995 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.43739e-08 ( -1.19573e-08  1.2028e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    0.116 sec. to    1.116 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.574168     ( -1.33013   0.585812 )
Epeak [keV] : 250.436      ( -250.434 -250.434 )
Norm@50keV  : 9.33107E-03    ( -0.00354925   0.0203493 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.77 using 59 PHA bins.
# Reduced chi-squared =         0.8888 for     56 degrees of freedom 
# Null hypothesis probability =   7.082484e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.755840 ( -0.127588  0.126577 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.3573e-08 ( -1.24174e-08  1.23299e-08 ) ergs/cm2

Band function

Time interval is from    0.116 sec. to    1.116 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.836508   ( 0.836497   0.836497 )
beta        : -0.924200    ( -0.268173   0.283793 )
Epeak [keV] : 18.3872      (   )
Norm@50keV   : 1.00000E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.09 using 59 PHA bins.
# Reduced chi-squared =         0.9107 for     55 degrees of freedom 
# Null hypothesis probability =   6.624076e-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]    : 25.1483  (-4.65321  6.45959)
R^2/D10^2   : 1.86030E-02  (-0.00925051   0.0165557)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.48 using 59 PHA bins.
# Reduced chi-squared =         0.9558 for     57 degrees of freedom 
# Null hypothesis probability =   5.701767e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.037e-09   6.385e-10
25- 50  1.159e-08   3.341e-09
50-150  5.432e-08   1.671e-08
15-150  6.795e-08   1.842e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 3.14099       (-0.504146     0.504085)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.93 using 59 PHA bins.
# Reduced chi-squared =          1.139 for     57 degrees of freedom 
# Null hypothesis probability =   2.199661e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.821e-09   4.422e-09
25- 50  1.504e-08   8.550e-09
50-150  3.299e-08   1.875e-08
15-150  5.586e-08   3.127e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.17481        (-2.60688      7.29576)
R1^2/D10^2  : 3.44391        (-3.38468      48.3111)
kT2 [keV]   : 28.8018        (-6.19235      21.5946)
R2^2/D10^2  : 1.17944E-02    (-0.00976478   0.00923137)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.60 using 59 PHA bins.
# Reduced chi-squared =         0.8837 for     55 degrees of freedom 
# Null hypothesis probability =   7.160139e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.408e-09   2.978e-09
25- 50  1.108e-08   4.166e-09
50-150  5.660e-08   2.396e-08
15-150  7.309e-08   2.615e-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: 1.05057     ( -0.275885   0.266097 )
Norm@50keV  : 5.54247E-03    ( -0.000843977   0.000840262 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.32 using 59 PHA bins.
# Reduced chi-squared =          1.093 for     57 degrees of freedom 
# Null hypothesis probability =   2.926559e-01
 
Photon flux (15-150 keV)    in 1.46 sec: 0.640161 ( -0.099817  0.100344 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.59879e-08 ( -1.40363e-08  1.41419e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 4.02558     ( -1.30639   0.466099 )
Epeak [keV] : 448.405      ( -260.309 -260.309 )
Norm@50keV  : 1.18182E-04    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.60 using 59 PHA bins.
# Reduced chi-squared =          1.100 for     56 degrees of freedom 
# Null hypothesis probability =   2.827561e-01
 
Photon flux (15-150 keV)    in 1.46 sec: 0.631259 ( -0.104645  0.103969 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.50507e-08 ( -1.4592e-08  1.45242e-08 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.744803   ( -0.454057   1.05078 )
beta        : -10.0000    ( 10   10 )
Epeak [keV] : 243.447      ( -150.467 -243.447 )
Norm@50keV   : 7.50772E-03    ( -0.00271012   0.0156613 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.05 using 59 PHA bins.
# Reduced chi-squared =          1.128 for     55 degrees of freedom 
# Null hypothesis probability =   2.392765e-01
 
Photon flux (15-150 keV)    in 1.46 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)  = 1.65e-08
S(50-100 keV) = 3.18e-08

T90 vs. Hardness ratio plot

T90                                   = 1.30000001192093 sec.
Hardness ratio (energy fluence ratio) = 1.92727

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.59805
Count Ratio (50-100 keV) / (15-25 keV) = 1.73075

Mask shadow pattern

IMX = -4.913912948410936E-01, IMY = 1.513051605122284E-01

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:
-299.056000 -0.264000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
284.8855 -24.8098  104.1  38.3  -72.6  -0.0584  -0.1   10.5	HT1900.1-2455                 
288.8152  10.9670    3.2  55.9  -28.7   3.3522   3.7    1.6	GRS 1915+105                  
323.0864 -28.1570    2.9   4.8  -43.0   0.6781   4.0 ------	UNKNOWN                       
280.0281 -30.2061    2.9  41.0  -82.6   3.3152   3.9 ------	UNKNOWN

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

Time interval of the image:
-0.264000 1.196000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
285.0013 -24.8730    9.2  38.2  -72.7  -0.0365  -1.3    3.4	HT1900.1-2455                 
288.7620  10.7945 2700.0  55.8  -28.9   0.0001   0.0    9.3	GRS 1915+105                  
330.1885 -57.6241    1.0  27.2 -162.9   0.1252  11.4 ------	UNKNOWN                       
322.9227 -58.2166    2.4  28.0 -154.6   0.0547   4.9 ------	UNKNOWN                       
 49.2967 -83.8558    2.4  58.8 -167.4   0.3341   4.8 ------	UNKNOWN                       
294.6609  18.8703    2.0  58.8  -17.6   0.3939   5.9 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
68.044590 303.049400
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
186.4757 -62.8221   10.8  56.4 -162.3   0.6876   1.1    5.9	GX 301-2                      
264.7779 -44.4865   13.0  41.3 -102.1   0.6697   0.9    2.7	4U 1735-44                    
  2.8272 -23.9156    3.2  41.0   47.5   1.4241   3.6 ------	UNKNOWN                       
312.5843  -5.9179    2.5  53.5  -23.2   2.0304   4.6 ------	UNKNOWN

Plot creation:
Sun May 31 15:03:31 EDT 2015