batgrbproduct analysis for trigger=727541

batgrbproduct Analysis for Trigger=727541

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  4 17:30:57 EST 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger727541
======================================================================

  Trigger: 00727541      Segment: 000

  BAT Trigger Time: 503866136.64   [s; MET]
      Trigger Stop: 503866137.152   [s; MET]
               UTC: 2016-12-19T18:48:39.308260    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 91.7173166987563   Dec: -26.7900102183723  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.78
     Image Trigger?:     NO
     Rate S/N Ratio:     14.5258390463339  [ if not an image trigger ]
     Image S/N Ratio:    7.78

  Flight Position:   [ source = BAT ]
    RA: 91.7173166987563   Dec: -26.7900102183723  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 91.7159522110343   Dec: -26.8012583033771  [deg; J2000]  
        { 06h 06m 51.8s , -26d 48' 04.5" }
         +/- 0.877838125941531 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.269374713552316 [arcmin] (formal 1-sigma fit error)
    SNR: 36.6399519661241
 
  Angular difference between Flight and Ground position is 0.678830 arcmin
 
  Partial Coding Fraction: 0.4921875    [ including projection effects ]

  Duration
     T90: 6.93199992179871 +/- 0.793180905778267
        Measured from: 0.0480000376701355
                   to: 6.97999995946884     [s; relative to TRIGTIME]
     T50: 2.45199990272522 +/- 0.373909090932152
        Measured from: 1.42800003290176
                   to: 3.87999993562698     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.55599999427795     
                   to: 2.55599999427795     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.53600001335144     
                   to: 8.3759999871254     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.777978   1.046229   0.617760   0.131593
           0.034686   0.037015   0.031340   0.023604 [error]
 Peak      0.160901   0.248936   0.163521   0.046570
           0.013290   0.014511   0.012566   0.008831 [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 2.96e-07 4.41e-07 4.91e-07 1.03e-06 1.54e-06 2.26e-06   erg/cm2
              Error 2.17e-08 1.98e-08 3.05e-08 1.35e-07 7.25e-08 1.61e-07   erg/cm2
Peak flux Power-law 1.95e+00 1.78e+00 1.12e+00 1.07e+00 5.30e+00 5.92e+00   ph/cm2/s
              Error 2.17e-01 1.27e-01 9.99e-02 1.88e-01 3.73e-01 4.05e-01   ph/cm2/s
 
Fluence   Cutoff-PL -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux Cutoff-PL 1.89e+00 1.45e+00 7.76e-01 7.04e-01 4.41e+00 4.82e+00   ph/cm2/s
              Error 2.66e-01 1.61e-01 8.75e-02 8.55e-02 4.58e-01 3.83e-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    1.844    0.080    -      -           1.88e-02 8.77e-04   53.080 57
CPL   1.294    0.352      61.9   16.9      3.61e-02 1.56e-02   44.960 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.669    0.114    -      -           4.03e-02 2.89e-03   91.720 57
CPL   0.852    0.565      67.0   24.4      1.09e-01 8.34e-02   84.240 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: 5.248000 sec.
T50 in the 50-300 keV band: 1.984000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    8.912   -0.536    8.376
T90     6.932    0.048    6.980
T50     2.452    1.428    3.880
Peak    1.000    1.556    2.556

Click here for the BAT GCN circular template

Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minute to calcaulte

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
   91.7160   -26.8013   0.0052    39.3860   174.0539         2.6871238     36.640 TRIG_00727541                 
 
Foreground time interval of the image:
 -0.536   8.376 (delta_t =   8.912 [sec])
Background time interval of the image:
-239.640  -0.536 (delta_t = 239.104 [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 0.512000

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 0.512000

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 0.512000

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   -0.536 sec. to    8.376 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.84416     ( -0.0790899   0.0800909 )
Norm@50keV  : 1.87926E-02    ( -0.000878568   0.00087453 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.08 using 59 PHA bins.
# Reduced chi-squared =         0.9312 for     57 degrees of freedom 
# Null hypothesis probability =   6.230034e-01
 
Photon flux (15-150 keV)    in 8.912 sec: 2.63540 ( -0.12238  0.12267 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.54033e-06 ( -7.24028e-08  7.26336e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.536 sec. to    8.376 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.29361     ( -0.366627   0.337473 )
Epeak [keV] : 61.8766      ( -9.26421 24.5389 )
Norm@50keV  : 3.61368E-02    ( -0.0117173   0.0194173 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.96 using 59 PHA bins.
# Reduced chi-squared =         0.8029 for     56 degrees of freedom 
# Null hypothesis probability =   8.545634e-01
 
Photon flux (15-150 keV)    in 8.912 sec: 2.55482 ( -0.13102  0.13141 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2

Band function

Time interval is from   -0.536 sec. to    8.376 sec.
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       :    (     )
beta        :     (     )
Epeak [keV] :       (   )
Norm@50keV   :     (     )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in  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]    : 12.3463  (  )
R^2/D10^2   : 0.554513  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         138.34 using 59 PHA bins.
# Reduced chi-squared =         2.4270 for     57 degrees of freedom 
# Null hypothesis probability =   1.029416e-08
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.596e-07   1.337e-08
25- 50  5.192e-07   2.847e-08
50-150  4.848e-07   4.438e-08
15-150  1.164e-06   5.615e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 97.7740       (-14.2735      18.5445)
Norm        : 11.5961       (-0.761291     0.830194)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.82 using 59 PHA bins.
# Reduced chi-squared =         0.7863 for     57 degrees of freedom 
# Null hypothesis probability =   8.790235e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.701e-07   2.175e-08
25- 50  4.649e-07   2.415e-08
50-150  7.437e-07   1.970e-07
15-150  1.479e-06   2.090e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.47459        (-1.10939      1.12188)
R1^2/D10^2  : 2.51255        (-0.891608      1.72275)
kT2 [keV]   : 24.2567        (-4.2941      7.26088)
R2^2/D10^2  : 2.96884E-02    (-0.0186844   0.0366094)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.05 using 59 PHA bins.
# Reduced chi-squared =         0.8555 for     55 degrees of freedom 
# Null hypothesis probability =   7.682849e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.415e-07   3.378e-08
25- 50  4.852e-07   5.735e-08
50-150  7.413e-07   1.907e-07
15-150  1.468e-06   2.678e-07

Peak spectrum fit

Power-law model

Time interval is from    1.556 sec. to    2.556 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.66940     ( -0.112971   0.114646 )
Norm@50keV  : 4.02942E-02    ( -0.00289238   0.0028778 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          91.72 using 59 PHA bins.
# Reduced chi-squared =          1.609 for     57 degrees of freedom 
# Null hypothesis probability =   2.417836e-03
 
Photon flux (15-150 keV)    in 1 sec: 5.29579 ( -0.37249  0.37294 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.74111e-07 ( -2.80999e-08  2.82446e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    1.556 sec. to    2.556 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.851897     ( -0.604212   0.525392 )
Epeak [keV] : 66.9895      ( -11.7911 36.9951 )
Norm@50keV  : 0.108628    ( -0.0505174   0.116262 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          84.24 using 59 PHA bins.
# Reduced chi-squared =          1.504 for     56 degrees of freedom 
# Null hypothesis probability =   8.674589e-03
 
Photon flux (15-150 keV)    in 1 sec: 4.40546 ( -0.44189  0.47416 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.54111e-07 ( -3.13434e-08  3.13319e-08 ) ergs/cm2

Band function

Time interval is from    1.556 sec. to    2.556 sec.
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       :    (     )
beta        :     (     )
Epeak [keV] :       (   )
Norm@50keV   :     (     )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in  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]    : 12.9431  (-0.974855  1.06806)
R^2/D10^2   : 1.01750  (-0.258773   0.339875)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         112.63 using 59 PHA bins.
# Reduced chi-squared =         1.9760 for     57 degrees of freedom 
# Null hypothesis probability =   1.600641e-05
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.615e-08   4.220e-09
25- 50  1.239e-07   1.035e-08
50-150  1.309e-07   1.985e-08
15-150  2.910e-07   2.255e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 143.818       (-37.8978      53.7175)
Norm        : 21.8606       (-1.74742     1.88672)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          86.01 using 59 PHA bins.
# Reduced chi-squared =          1.509 for     57 degrees of freedom 
# Null hypothesis probability =   7.800873e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.634e-08   5.395e-09
25- 50  1.038e-07   1.272e-08
50-150  2.013e-07   7.426e-08
15-150  3.614e-07   8.795e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.68995        (-1.91169      2.26996)
R1^2/D10^2  : 2.36049        (-0.875107      1.96384)
kT2 [keV]   : 40.8367        (-18.0578      -41.2722)
R2^2/D10^2  : 1.00789E-02    (-0.00911655   0.0673733)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          80.26 using 59 PHA bins.
# Reduced chi-squared =          1.459 for     55 degrees of freedom 
# Null hypothesis probability =   1.475100e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.676e-08   8.245e-09
25- 50  1.207e-07   2.325e-08
50-150  1.942e-07   8.493e-08
15-150  3.617e-07   1.052e-07

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: 1.84416     ( -0.0790899   0.0800909 )
Norm@50keV  : 1.87926E-02    ( -0.000878568   0.00087453 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.08 using 59 PHA bins.
# Reduced chi-squared =         0.9312 for     57 degrees of freedom 
# Null hypothesis probability =   6.230034e-01
 
Photon flux (15-150 keV)    in 8.912 sec: 2.63525 ( -0.122366  0.122661 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.54007e-06 ( -7.24135e-08  7.26422e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.29359     ( -0.366621   0.337478 )
Epeak [keV] : 61.8760      ( -9.26413 24.5398 )
Norm@50keV  : 3.61377E-02    ( -0.0117174   0.0194172 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.96 using 59 PHA bins.
# Reduced chi-squared =         0.8029 for     56 degrees of freedom 
# Null hypothesis probability =   8.545633e-01
 
Photon flux (15-150 keV)    in 8.912 sec: 2.55437 ( -0.13096  0.13134 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.4785e-06 ( -8.19637e-08  8.19191e-08 ) ergs/cm2

Band function

 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       :    (     )
beta        :     (     )
Epeak [keV] :       (   )
Norm@50keV   :     (     )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in  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)  = 4.41e-07
S(50-100 keV) = 4.91e-07

T90 vs. Hardness ratio plot

T90                                   = 6.93199992179871 sec.
Hardness ratio (energy fluence ratio) = 1.11338

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.34481
Count Ratio (50-100 keV) / (15-25 keV) = 0.794058

Mask shadow pattern

IMX = -8.165842059037335E-01, IMY = -8.505038678301831E-02

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000

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:
-239.640000 -0.536000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6356  22.0162    0.3  22.3   68.5   9.8289  37.3    0.2	Crab                          
108.8711 -16.3582    2.2  45.7  147.3   3.6948   5.3 ------	UNKNOWN                       
 82.6723  28.8121    2.6  27.1   56.7   1.3838   4.5 ------	UNKNOWN                       
 41.6312   0.9536    2.3  26.9  -70.4   1.5464   5.1 ------	UNKNOWN                       
 26.0660  25.4912    3.1  45.1  -30.8   1.6815   3.8 ------	UNKNOWN                       
 75.6335 -50.6291    2.8  56.4 -157.5   6.5551   4.1 ------	UNKNOWN                       
 71.4186 -51.7313    4.4  57.2 -154.2   5.0114   2.6 ------	UNKNOWN

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

Time interval of the image:
-0.536000 8.376000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6269  22.0372   37.0  22.3   68.4  -0.0168  -0.3    1.4	Crab                          
 78.1352  26.7781    2.2  23.4   50.8   0.2654   5.3 ------	UNKNOWN                       
 91.7161 -26.8004    0.3  39.4  174.1   2.7015  36.8 ------	UNKNOWN                       
 63.2393  -4.9715    2.6  11.5 -126.0   0.1707   4.4 ------	UNKNOWN                       
 23.8612  36.0101    2.4  50.9  -18.7   0.4964   4.8 ------	UNKNOWN                       
 54.4571 -21.9187    2.4  30.5 -126.0   0.2829   4.8 ------	UNKNOWN                       
 72.0510 -49.1232    2.7  54.6 -154.9   0.8275   4.3 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
90.660590 962.455900
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
135.5744 -40.6264    3.4  38.6 -143.1   3.0522   3.4    4.8	Vela X-1                      
 97.0162  13.5643    2.9  40.7  102.4   7.8665   4.0 ------	UNKNOWN                       
 40.4958  -3.3441    3.6  54.2   20.9  12.3530   3.3 ------	UNKNOWN                       
 84.0848 -20.1093    2.8   9.7   46.6   1.9721   4.1 ------	UNKNOWN                       
 26.9853 -20.9249    3.8  58.9   -4.9  12.1937   3.0 ------	UNKNOWN                       
 26.7253 -21.7396    2.5  58.8   -5.9  18.1891   4.6 ------	UNKNOWN                       
157.6447 -33.7981    3.8  56.4 -151.2   9.6577   3.0 ------	UNKNOWN                       
124.4898 -62.3410    3.7  41.6 -107.8   8.8334   3.2 ------	UNKNOWN                       
 32.5382 -53.8173    4.0  50.6  -44.6   9.4335   2.9 ------	UNKNOWN

Plot creation:
Thu Jan  5 10:36:36 EST 2017