batgrbproduct analysis for trigger=1246989

batgrbproduct Analysis for Trigger=1246989

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 v2.48
    Process Start Time (local time): Sat Oct 19 15:01:33 EDT 2024
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1246989
======================================================================

  Trigger: 01246989      Segment: 000

  BAT Trigger Time: 744560968.064   [s; MET]
      Trigger Stop: 744560969.088   [s; MET]
               UTC: 2024-08-05T14:28:54.126720    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 254.239139683668   Dec: 18.3233256365182  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.47
     Image Trigger?:     NO
     Rate S/N Ratio:     10.9087121146357  [ if not an image trigger ]
     Image S/N Ratio:    7.47

  Flight Position:   [ source = BAT ]
    RA: 254.239139683668   Dec: 18.3233256365182  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 254.223663622839   Dec: 18.3170280608998  [deg; J2000]  
        { 16h 56m 53.7s , +18d 19' 01.3" }
         +/- 1.32168020693965 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.517148134234712 [arcmin] (formal 1-sigma fit error)
    SNR: 20.4211730431763
 
  Angular difference between Flight and Ground position is 0.959070 arcmin
 
  Partial Coding Fraction: 0.859375    [ including projection effects ]

  Duration
     T90: 64.9959999322891 +/- 2.55053562398777
        Measured from: 3.01199996471405
                   to: 68.0079998970032     [s; relative to TRIGTIME]
     T50: 30.2999999523163 +/- 1.06725066691503
        Measured from: 17.8919999599457
                   to: 48.191999912262     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 15.9479999542236     
                   to: 16.9479999542236     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.75600004196167     
                   to: 96.5160000324249     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     2.495904   3.249714   2.027245   0.342407
           0.071490   0.070397   0.061248   0.055125 [error]
 Peak      0.065719   0.117323   0.096851   0.017976
           0.008199   0.008695   0.007926   0.006345 [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 7.94e-07 1.28e-06 1.59e-06 3.82e-06 4.75e-06 7.49e-06   erg/cm2
              Error 4.26e-08 4.01e-08 6.32e-08 3.37e-07 1.49e-07 3.80e-07   erg/cm2
Peak flux Power-law 6.85e-01 7.72e-01 6.22e-01 8.35e-01 2.39e+00 2.91e+00   ph/cm2/s
              Error 9.95e-02 7.07e-02 6.30e-02 1.71e-01 2.02e-01 2.57e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.98e-07 1.35e-06 1.61e-06 1.60e-06 4.47e-06 5.25e-06   erg/cm2
              Error 5.35e-08 4.73e-08 6.89e-08 4.80e-07 1.78e-07 5.13e-07   erg/cm2
Peak flux Cutoff-PL 5.78e-01 8.41e-01 6.71e-01 3.32e-01 2.31e+00 2.42e+00   ph/cm2/s
              Error 1.18e-01 8.68e-02 7.47e-02 1.93e-01 2.09e-01 2.79e-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    1.704    0.056    -      -           5.27e-03 1.58e-04   60.860 57
CPL   1.047    0.258      72.0   11.7      1.12e-02 3.29e-03   38.830 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.311    0.137    -      -           2.00e-02 1.68e-03   81.860 57
CPL   0.376    0.640      87.7   41.1      5.88e-02 4.84e-02   74.000 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: 59.264000 sec.
T50 in the 50-300 keV band: 29.376000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   97.272   -0.756   96.516
T90    64.996    3.012   68.008
T50    30.300   17.892   48.192
Peak    1.000   15.948   16.948

Click here for the BAT GCN circular template

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

Image

Pre-slew 15.0-350.0 keV image (Event data)

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  254.2237    18.3170   0.0094    19.7996    30.8256         1.0544297     20.421 TRIG_01246989                 
 
Foreground time interval of the image:
 -0.756  11.237 (delta_t =  11.993 [sec])
Background time interval of the image:
-239.064  -0.756 (delta_t = 238.308 [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   -0.756 sec. to   96.516 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.70432     ( -0.0557253   0.0559771 )
Norm@50keV  : 5.27383E-03    ( -0.000158241   0.000157985 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   60.86     using 59 bins.
 Reduced chi-squared = 1.06772
# Null hypothesis probability of 3.39e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 97.27 sec: 0.701514 ( -0.022049  0.022113 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.74875e-06 ( -1.48527e-07  1.48913e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.756 sec. to   96.516 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.04726     ( -0.26558   0.250003 )
Epeak [keV] : 71.9689      ( -8.18034 15.1298 )
Norm@50keV  : 1.11601E-02    ( -0.00271523   0.00387413 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   38.83     using 59 bins.
 Reduced chi-squared = 0.693393
# Null hypothesis probability of 9.61e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 97.27 sec: 0.668007 ( -0.024887  0.025024 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.4732e-06 ( -1.78147e-07  1.78573e-07 ) ergs/cm2

Band function

Time interval is from   -0.756 sec. to   96.516 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]    : 13.6889  (  )
R^2/D10^2   : 0.101869  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  194.23     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 7.21e-17 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.930e-07   2.116e-08
25- 50  1.429e-06   4.912e-08
50-150  1.742e-06   1.007e-07
15-150  3.564e-06   1.133e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 131.060       (-16.1574      21.4441)
Norm        : 2.91775       (-0.11759     0.121941)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   41.04     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.45e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.360e-07   4.421e-08
25- 50  1.336e-06   6.809e-08
50-150  2.487e-06   5.963e-07
15-150  4.559e-06   6.104e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.69389        (-1.02624      1.04747)
R1^2/D10^2  : 0.520973        (-0.163498      0.296313)
kT2 [keV]   : 23.7531        (-3.15297      4.74599)
R2^2/D10^2  : 9.75534E-03    (-0.00495404   0.00775171)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   43.78     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.62e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.216e-07   6.279e-08
25- 50  1.387e-06   1.255e-07
50-150  2.417e-06   3.618e-07
15-150  4.425e-06   4.144e-07

Peak spectrum fit

Power-law model

Time interval is from   15.948 sec. to   16.948 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.31109     ( -0.137154   0.137085 )
Norm@50keV  : 1.99583E-02    ( -0.00168528   0.00168304 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   81.86     using 59 bins.
 Reduced chi-squared = 1.43614
# Null hypothesis probability of 1.71e-02 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 2.38604 ( -0.20221  0.20238 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.96716e-07 ( -1.84986e-08  1.86762e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   15.948 sec. to   16.948 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.375647     ( -0.688033   0.591602 )
Epeak [keV] : 87.7225      ( -18.8635 63.3692 )
Norm@50keV  : 5.87513E-02    ( -0.028541   0.0682619 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   74.00     using 59 bins.
 Reduced chi-squared = 1.32143
# Null hypothesis probability of 5.39e-02 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 2.30678 ( -0.20874  0.20863 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.84014e-07 ( -2.02683e-08  2.04609e-08 ) ergs/cm2

Band function

Time interval is from   15.948 sec. to   16.948 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]    : 16.3823  (-1.60061  1.80492)
R^2/D10^2   : 0.214081  (-0.0641153   0.0898335)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   89.10     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 4.19e-03 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.181e-08   1.933e-09
25- 50  5.072e-08   5.260e-09
50-150  9.597e-08   1.550e-08
15-150  1.585e-07   1.720e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-28.2379      -200)
Norm        : 9.85329       (-0.827578     0.827578)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   85.56     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.52e-03 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.453e-08   2.515e-09
25- 50  4.719e-08   1.373e-08
50-150  1.035e-07   4.760e-08
15-150  1.752e-07   4.713e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.08245        (-2.52027      3.52227)
R1^2/D10^2  : 1.17317        (-0.703072      2.40312)
kT2 [keV]   : 24.8197        (-5.45297      17.8618)
R2^2/D10^2  : 4.00269E-02    (-0.0344729   0.0655201)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   72.70     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 5.52e-02 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.826e-08   9.106e-09
25- 50  4.918e-08   1.833e-08
50-150  1.179e-07   6.015e-08
15-150  1.853e-07   8.542e-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: 1.51669     ( -0.130198   0.131561 )
Norm@50keV  : 5.62029E-03    ( -0.000426328   0.000424463 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   89.72     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.68e-03 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 11.99 sec: 0.704830 ( -0.0526476  0.0527314 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.37563e-07 ( -5.29092e-08  5.34242e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.689229     ( -0.636676   0.553933 )
Epeak [keV] : 79.2444      ( -15.9944 58.391 )
Norm@50keV  : 1.45267E-02    ( -0.00670898   0.0151125 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   82.81     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.15e-02 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 11.99 sec: 0.673386 ( -0.028265  0.056432 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.96738e-07 ( -5.85304e-08  5.95304e-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)  = 1.28e-06
S(50-100 keV) = 1.59e-06

T90 vs. Hardness ratio plot

T90                                   = 64.9959999322891 sec.
Hardness ratio (energy fluence ratio) = 1.24219

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.30202
Count Ratio (50-100 keV) / (15-25 keV) = 0.812229

Mask shadow pattern

IMX = 3.091552619697618E-01, IMY = -1.844809990319657E-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:
-239.064000 -0.756000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
244.9861 -15.6445    0.5  25.7  132.7  13.3053  23.0    0.5	Sco X-1                       
254.5289  35.2018    7.7  31.3    1.2  -0.7428  -1.5    9.1	Her X-1                       
268.4380  -1.6378    5.2  33.5   78.3  -2.3253  -2.2   11.9	SW J1753.5-0127               
253.4441  -6.0404    2.7  22.4  102.3   2.5820   4.3 ------	UNKNOWN                       
244.5050  62.0008    2.3  53.7  -23.3   5.5716   5.0 ------	UNKNOWN

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

Time interval of the image:
-0.756000 11.236600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
245.0448 -15.5127   13.7  25.6  132.5  -0.0552  -0.8    8.5	Sco X-1                       
254.5044  35.1731    4.4  31.3    1.2   0.1439   2.6   10.4	Her X-1                       
268.3698  -1.4723    6.1  33.4   78.1  -0.1941  -1.9    1.2	SW J1753.5-0127               
254.2236  18.3170    0.6  19.8   30.8   1.0544  20.4 ------	UNKNOWN                       
193.7370 -26.7094    2.7  54.4 -159.9   0.6496   4.2 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
66.236590 962.963200
1030.936000 1121.063500
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
244.9774 -15.6523    0.6  35.2  169.6  45.7402  20.7    0.7	Sco X-1                       
254.6841  35.3857    3.6  17.1  -24.8   4.6962   3.2   11.4	Her X-1                       
263.0130 -24.8887    8.2  44.1  142.5  -8.8631  -1.4    8.6	GX 1+4                        
268.3601  -1.4536   23.5  24.2  117.5  -1.0876  -0.5    0.5	SW J1753.5-0127               
270.0489 -25.1561    0.0  46.1  134.0 -20.0580  -2.3   13.6	GX 5-1                        
270.2407 -25.6075    6.3  46.6  134.0  15.3419   1.8    8.8	GRS 1758-258                  
273.9810 -14.1640    8.5  37.9  121.8   7.8361   1.4    7.8	GX 17+2                       
288.8075  10.8923    6.3  34.2   71.7   7.8807   1.8    3.2	GRS 1915+105                  
299.6137  35.1824    1.1  43.4   31.8  36.8710  11.0    1.6	Cyg X-1                       
308.2557  41.0493   11.5  51.2   25.6   4.2909   1.0    8.8	Cyg X-3                       
285.7920   8.6771    3.2  32.1   77.3  12.8716   3.6 ------	UNKNOWN                       
267.1014  -8.0635    2.3  29.3  127.3  13.8061   5.1 ------	UNKNOWN                       
215.6310  52.7963    4.7  45.7  -57.8  18.0491   2.5 ------	UNKNOWN                       
207.8793   4.6220    3.0  47.3 -127.0  30.2011   3.8 ------	UNKNOWN

Plot creation:
Sat Oct 19 18:20:22 EDT 2024