batgrbproduct analysis for trigger=887579

batgrbproduct Analysis for Trigger=887579

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): Thu Mar 21 15:12:11 EDT 2019
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger887579
======================================================================

  Trigger: 00887579      Segment: 000

  BAT Trigger Time: 570951983.104   [s; MET]
      Trigger Stop: 570951984.128   [s; MET]
               UTC: 2019-02-04T05:46:00.743560    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 351.53388272963   Dec: 54.8827857064406  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    13.71
     Image Trigger?:     NO
     Rate S/N Ratio:     34.0440890610984  [ if not an image trigger ]
     Image S/N Ratio:    13.71

  Flight Position:   [ source = BAT ]
    RA: 351.53388272963   Dec: 54.8827857064406  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 351.490917880434   Dec: 54.8840662348078  [deg; J2000]  
        { 23h 25m 57.8s , +54d 53' 02.6" }
         +/- 0.63918515280368 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.284190923996894 [arcmin] (formal 1-sigma fit error)
    SNR: 57.6493683991354
 
  Angular difference between Flight and Ground position is 1.484900 arcmin
 
  Partial Coding Fraction: 0.484375    [ including projection effects ]

  Duration
     T90: 26.3239998817444 +/- 7.5497881100902
        Measured from: -2.58799982070923
                   to: 23.7360000610352     [s; relative to TRIGTIME]
     T50: 3.90399992465973 +/- 0.202267160392584
        Measured from: 4.10800015926361
                   to: 8.01200008392334     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 4.86400008201599     
                   to: 5.86400008201599     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -6.51999998092651     
                   to: 54.1280000209808     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     4.090194   6.313829   5.733352   1.794411
           0.087098   0.097479   0.091729   0.074978 [error]
 Peak      0.678107   1.250780   1.302533   0.464995
           0.023955   0.031526   0.032949   0.023916 [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 1.32e-06 2.75e-06 4.51e-06 1.67e-05 1.24e-05 2.53e-05   erg/cm2
              Error 5.82e-08 7.03e-08 1.01e-07 8.99e-07 2.57e-07 9.33e-07   erg/cm2
Peak flux Power-law 2.01e-03 3.05e-02 2.62e-01 3.05e+01 1.16e+00 2.99e+01   ph/cm2/s
              Error -------- -------- -------- -------- -------- --------   ph/cm2/s
 
Fluence   Cutoff-PL 1.27e-06 2.77e-06 4.57e-06 1.44e-05 1.24e-05 2.30e-05   erg/cm2
              Error 7.40e-08 7.22e-08 1.22e-07 2.44e-06 2.74e-07 2.46e-06   erg/cm2
Peak flux Cutoff-PL 6.64e+00 9.45e+00 9.04e+00 1.03e+01 2.96e+01 3.54e+01   ph/cm2/s
              Error 5.52e-01 3.50e-01 3.48e-01 1.92e+00 9.26e-01 2.15e+00   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    1.287    0.038    -      -           2.07e-02 4.19e-04   48.720 57
CPL   1.166    0.139     414.1 -108.1      2.33e-02 3.20e-03   46.870 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.103    0.050    -      -           2.59e-01 7.42e-03   63.370 57
CPL   0.758    0.206     210.4  128.9      3.67e-01 7.51e-02   54.580 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: 13.952000 sec.
T50 in the 50-300 keV band: 2.880000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   60.648   -6.520   54.128
T90    26.324   -2.588   23.736
T50     3.904    4.108    8.012
Peak    1.000    4.864    5.864

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
  351.4909    54.8841   0.0033    31.2759   145.8693        16.4541058     57.649 TRIG_00887579                 
 
Foreground time interval of the image:
 -6.520   9.997 (delta_t =  16.517 [sec])
Background time interval of the image:
-234.104  -6.520 (delta_t = 227.584 [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

8 ms binning

From T100_start-3 s to T100_start+3 s

2 ms binning

From T100_start-1 s to T100_start+1 s

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   -6.520 sec. to   54.128 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.28654     ( -0.0382842   0.0381907 )
Norm@50keV  : 2.07190E-02    ( -0.000419367   0.000418838 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.72 using 59 PHA bins.
# Reduced chi-squared =         0.8547 for     57 degrees of freedom 
# Null hypothesis probability =   7.744700e-01
 
Photon flux (15-150 keV)    in 60.65 sec: 2.46583 ( -0.05557  0.05573 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.24604e-05 ( -2.56681e-07  2.56819e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from   -6.520 sec. to   54.128 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.16630     ( -0.155335   0.123463 )
Epeak [keV] : 414.106      ( -197.924 -414.106 )
Norm@50keV  : 2.32831E-02    ( -0.0027235   0.00368067 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.87 using 59 PHA bins.
# Reduced chi-squared =         0.8370 for     56 degrees of freedom 
# Null hypothesis probability =   8.024540e-01
 
Photon flux (15-150 keV)    in 60.65 sec: 2.44312 ( -0.06176  0.06203 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.23849e-05 ( -2.73829e-07  2.73315e-07 ) ergs/cm2

Band function

Time interval is from   -6.520 sec. to   54.128 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]    : 20.1413  (  )
R^2/D10^2   : 0.105144  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         502.90 using 59 PHA bins.
# Reduced chi-squared =         8.8228 for     57 degrees of freedom 
# Null hypothesis probability =   1.261256e-72
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.973e-07   2.208e-08
25- 50  2.489e-06   8.461e-08
50-150  7.491e-06   2.214e-07
15-150  1.048e-05   2.547e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 10.5731       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         226.87 using 59 PHA bins.
# Reduced chi-squared =         3.9803 for     57 degrees of freedom 
# Null hypothesis probability =   3.989641e-22
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.597e-06   3.487e-08
25- 50  3.072e-06   6.975e-08
50-150  6.737e-06   1.456e-07
15-150  1.141e-05   2.547e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.46404        (-0.729935      0.7736)
R1^2/D10^2  : 1.13901        (-0.275531      0.396118)
kT2 [keV]   : 33.3740        (-2.6306      3.3609)
R2^2/D10^2  : 1.65368E-02    (-0.00450017   0.00534468)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.11 using 59 PHA bins.
# Reduced chi-squared =          1.020 for     55 degrees of freedom 
# Null hypothesis probability =   4.329504e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.094e-06   8.946e-08
25- 50  2.841e-06   1.186e-07
50-150  8.426e-06   4.458e-07
15-150  1.236e-05   4.458e-07

Peak spectrum fit

Power-law model

Time interval is from    4.864 sec. to    5.864 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.10251     ( -0.0504505   0.0503219 )
Norm@50keV  : 0.259034    ( -0.00741892   0.00741594 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.37 using 59 PHA bins.
# Reduced chi-squared =          1.112 for     57 degrees of freedom 
# Null hypothesis probability =   2.619619e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.16024 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.70639e-06 ( -8.41647e-08  8.42897e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    4.864 sec. to    5.864 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.758025     ( -0.210817   0.201403 )
Epeak [keV] : 210.390      ( -57.869 199.937 )
Norm@50keV  : 0.366799    ( -0.0659268   0.0842303 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.58 using 59 PHA bins.
# Reduced chi-squared =         0.9747 for     56 degrees of freedom 
# Null hypothesis probability =   5.287088e-01
 
Photon flux (15-150 keV)    in 1 sec: 29.5863 ( -0.9258  0.9269 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.66876e-06 ( -8.83424e-08  8.80701e-08 ) ergs/cm2

Band function

Time interval is from    4.864 sec. to    5.864 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]    : 21.0208  (  )
R^2/D10^2   : 1.21838  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         239.90 using 59 PHA bins.
# Reduced chi-squared =         4.2088 for     57 degrees of freedom 
# Null hypothesis probability =   2.701086e-24
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.017e-07   6.170e-09
25- 50  5.229e-07   2.225e-08
50-150  1.722e-06   7.550e-08
15-150  2.347e-06   7.900e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 124.462       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         279.05 using 59 PHA bins.
# Reduced chi-squared =         4.8956 for     57 degrees of freedom 
# Null hypothesis probability =   5.235570e-31
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.099e-07   9.800e-09
25- 50  5.962e-07   1.945e-08
50-150  1.307e-06   4.150e-08
15-150  2.214e-06   6.550e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.66943        (-1.1297      1.2565)
R1^2/D10^2  : 10.9107        (-3.4899      5.79171)
kT2 [keV]   : 33.2577        (-3.39425      4.8335)
R2^2/D10^2  : 0.235626    (-0.0852677   0.10431)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.55 using 59 PHA bins.
# Reduced chi-squared =         0.9919 for     55 degrees of freedom 
# Null hypothesis probability =   4.916736e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.946e-07   2.120e-08
25- 50  5.584e-07   4.470e-08
50-150  1.933e-06   1.685e-07
15-150  2.686e-06   2.010e-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: 1.21971     ( -0.0350456   0.0349571 )
Norm@50keV  : 6.51314E-02    ( -0.00123544   0.00123411 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.25 using 59 PHA bins.
# Reduced chi-squared =         0.8114 for     57 degrees of freedom 
# Null hypothesis probability =   8.449350e-01
 
Photon flux (15-150 keV)    in 16.52 sec: 7.66698 ( -0.159452  0.159841 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.08564e-05 ( -2.07531e-07  2.07584e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.06057     ( -0.142904   0.138453 )
Epeak [keV] : 360.963      ( -140.387 1607.57 )
Norm@50keV  : 7.57541E-02    ( -0.00812721   0.010713 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.41 using 59 PHA bins.
# Reduced chi-squared =         0.7573 for     56 degrees of freedom 
# Null hypothesis probability =   9.100842e-01
 
Photon flux (15-150 keV)    in 16.52 sec: 7.57871 ( -0.17473  0.17586 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.07912e-05 ( -2.17519e-07  2.17007e-07 ) 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)  = 2.75e-06
S(50-100 keV) = 4.51e-06

T90 vs. Hardness ratio plot

T90                                   = 26.3239998817444 sec.
Hardness ratio (energy fluence ratio) = 1.64

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.54365
Count Ratio (50-100 keV) / (15-25 keV) = 1.40173

Mask shadow pattern

IMX = -5.028088987541257E-01, IMY = -3.408205251257561E-01

TIME vs. PHA plot around the trigger time

TIME vs. DetID plot around the trigger time

100 us light curve (15-350 keV)

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:
-234.104000 -6.520000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.4106  35.3527    3.6  41.8   16.0   1.6293   3.2    2.4	Her X-1                       
268.1581  -1.3831    5.7  56.0  -33.1   3.1148   2.1   13.3	SW J1753.5-0127               
288.8638  10.9812    3.2  34.8  -49.4   1.4901   3.6    4.4	GRS 1915+105                  
299.5850  35.2042    0.4   9.1  -34.5   8.6133  31.7    0.3	Cyg X-1                       
308.1571  40.9966    3.6   0.5  -93.7   0.7975   3.2    3.4	Cyg X-3                       
326.2146  38.4649    8.8  14.2 -167.5   0.3430   1.3    8.8	Cyg X-2                       
 14.6638  44.4317    2.5  47.5  159.0   3.5478   4.6 ------	UNKNOWN                       
301.0053  61.2830    2.4  20.3   86.4   1.4215   4.7 ------	UNKNOWN                       
248.4909  25.9489    2.7  50.9    8.2   2.9938   4.3 ------	UNKNOWN                       
256.9440   8.8691    3.0  55.5  -14.8   3.2303   3.9 ------	UNKNOWN

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

Time interval of the image:
-6.520000 9.996600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.3173  35.2856    5.6  41.9   16.0  -0.6687  -2.1    7.7	Her X-1                       
268.4692  -1.5526    9.8  56.0  -33.6  -0.8675  -1.2    8.5	SW J1753.5-0127               
288.6743  10.8856    5.4  35.0  -49.2   0.5496   2.1    8.1	GRS 1915+105                  
299.7406  35.3449    8.8   8.9  -34.4   0.2561   1.3   11.3	Cyg X-1                       
308.1783  40.8873   19.4   0.6  -93.4   0.0987   0.6    5.0	Cyg X-3                       
326.2712  38.3710   22.8  14.3 -167.2   0.0894   0.5    5.5	Cyg X-2                       
351.4909  54.8841    0.2  31.3  145.9  16.4544  57.7 ------	UNKNOWN                       
274.9067  16.4047    2.6  37.9  -25.2   1.0653   4.5 ------	UNKNOWN                       
  3.9349  10.7277    2.9  57.6 -158.3   4.3618   3.9 ------	UNKNOWN                       
313.5476   1.0216    3.0  40.8  -92.2   2.3834   3.8 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
63.596600 967.930200
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
299.5597  35.2211    0.5  40.4  -40.3  31.6099  24.2    1.9	Cyg X-1                       
307.9164  41.0173   14.3  31.7  -40.8   0.8283   0.8    9.6	Cyg X-3                       
326.1593  38.2916   26.1  23.8  -66.9  -0.4520  -0.4    1.9	Cyg X-2                       
 63.2936  52.8501    3.6  40.5  118.8  10.3647   3.3 ------	UNKNOWN                       
 54.3426  33.8826    3.7  47.6  145.9   8.0863   3.1 ------	UNKNOWN                       
 40.8338  61.4015    1.7  26.2  112.2   7.4540   6.9 ------	UNKNOWN                       
 40.3918  50.4065    3.0  29.4  135.0   4.3387   3.8 ------	UNKNOWN                       
264.4833  51.0857    2.5  49.1    0.6   6.8167   4.7 ------	UNKNOWN                       
258.3714  44.1072    3.0  56.9   -2.1  11.0559   3.8 ------	UNKNOWN                       
291.0153  48.8435    2.9  36.6  -16.9   3.9289   4.0 ------	UNKNOWN                       
299.5635  24.5765    2.8  48.5  -50.2  15.9047   4.1 ------	UNKNOWN

Plot creation:
Thu Mar 21 16:35:36 EDT 2019