batgrbproduct analysis for trigger=1056426

batgrbproduct Analysis for Trigger=1056426

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): Fri Jul 29 23:03:09 EDT 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1056426
======================================================================

  Trigger: 01056426      Segment: 000

  BAT Trigger Time: 645673444.224   [s; MET]
      Trigger Stop: 645673444.736   [s; MET]
               UTC: 2021-06-18T01:43:37.008340    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 235.820334978217   Dec: 46.0433632334042  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.01
     Image Trigger?:     NO
     Rate S/N Ratio:     12.369316876853  [ if not an image trigger ]
     Image S/N Ratio:    7.01

  Flight Position:   [ source = BAT ]
    RA: 235.820334978217   Dec: 46.0433632334042  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 235.76357055125   Dec: 46.0686421956418  [deg; J2000]  
        { 15h 43m 03.3s , +46d 04' 07.1" }
         +/- 2.01107368901802 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.936196155566632 [arcmin] (formal 1-sigma fit error)
    SNR: 11.2111414279785
 
  Angular difference between Flight and Ground position is 2.808328 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 2.13199996948242 +/- 0.438488315161259
        Measured from: -1.3639999628067
                   to: 0.76800000667572     [s; relative to TRIGTIME]
     T50: 1.25599992275238 +/- 0.515503641776127
        Measured from: -0.916000008583069
                   to: 0.339999914169312     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.495999932289124     
                   to: 0.504000067710876     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -1.41999995708466     
                   to: 0.927999973297119     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.059160   0.100822   0.072310   0.034526
           0.011647   0.012911   0.013016   0.014175 [error]
 Peak      0.035203   0.055008   0.045402   0.014324
           0.007656   0.008703   0.008684   0.009359 [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 1.67e-08 3.66e-08 6.29e-08 2.51e-07 1.73e-07 3.66e-07   erg/cm2
              Error 4.40e-09 5.69e-09 1.28e-08 1.15e-07 3.19e-08 1.24e-07   erg/cm2
Peak flux Power-law 2.81e-01 3.51e-01 3.20e-01 5.06e-01 1.13e+00 1.46e+00   ph/cm2/s
              Error 9.20e-02 6.82e-02 7.16e-02 2.50e-01 1.96e-01 3.06e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.67e-08 3.62e-08 6.27e-08 2.65e-07 1.76e-07 3.69e-07   erg/cm2
              Error -------- 6.23e-09 -------- 1.30e-07 2.88e-08 1.31e-07   erg/cm2
Peak flux Cutoff-PL 2.87e-01 3.51e-01 3.18e-01 5.10e-01 1.13e+00 1.46e+00   ph/cm2/s
              Error 9.35e-02 6.85e-02 7.23e-02 -------- 2.17e-01 3.46e-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    1.216    0.277    -      -           7.27e-03 1.10e-03   58.670 57
CPL   1.193    1.738    9980.9    0.0      7.49e-03 7.49e-03   58.750 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.136    0.331    -      -           9.66e-03 1.71e-03   89.460 57
CPL   1.140    0.333    9999.4    0.0      9.68e-03 8.58e-03   89.470 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    2.348   -1.420    0.928
T90     2.132   -1.364    0.768
T50     1.256   -0.916    0.340
Peak    1.000   -0.496    0.504

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
  235.7636    46.0686   0.0172    13.1367  -156.5186         0.3045533     11.211 TRIG_01056426                 
 
Foreground time interval of the image:
 -1.420   0.928 (delta_t =   2.348 [sec])
Background time interval of the image:
-119.224  -1.420 (delta_t = 117.804 [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   -1.420 sec. to    0.928 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.21642     ( -0.277633   0.277341 )
Norm@50keV  : 7.27312E-03    ( -0.0011086   0.00109778 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   58.67     using 59 bins.
 Reduced chi-squared = 1.0293
# Null hypothesis probability of 4.14e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 2.348 sec: 0.855746 ( -0.125859  0.125866 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.72484e-07 ( -3.13639e-08  3.23533e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -1.420 sec. to    0.928 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.19306     ( -0.905237   2.57022 )
Epeak [keV] : 9980.86      ( -9999.34 -9999.34 )
Norm@50keV  : 7.48632E-03    ( -0.00111629   0.0138709 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   58.75     using 59 bins.
 Reduced chi-squared = 1.04911
# Null hypothesis probability of 3.75e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 2.348 sec: 0.862351 ( -0.160819  0.146439 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.75723e-07 ( -3.99857e-08  1.75801e-08 ) ergs/cm2

Band function

Time interval is from   -1.420 sec. to    0.928 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]    : 14.9169  (-2.86169  4.03634)
R^2/D10^2   : 9.92771E-02  (-0.0539325   0.103871)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   69.72     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.20e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.087e-08   3.342e-09
25- 50  4.297e-08   9.909e-09
50-150  6.490e-08   2.317e-08
15-150  1.187e-07   2.706e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-61.7845      -200)
Norm        : 3.39870       (-0.509233     0.509233)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   62.46     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 2.88e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.994e-08   1.135e-08
25- 50  3.836e-08   2.152e-08
50-150  8.412e-08   4.778e-08
15-150  1.424e-07   7.987e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 10.1695        (-2.55741      2.97441)
R1^2/D10^2  : 0.293958        (-0.195893      0.511647)
kT2 [keV]   : 200.000        (-200      -200)
R2^2/D10^2  : 1.68992E-04    (-3.56596e-05   0.000732271)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   56.07     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 4.35e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.548e-08   8.311e-09
25- 50  4.095e-08   2.209e-08
50-150  1.272e-07   9.625e-08
15-150  1.836e-07   1.078e-07

Peak spectrum fit

Power-law model

Time interval is from   -0.496 sec. to    0.504 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.13629     ( -0.334275   0.327105 )
Norm@50keV  : 9.66315E-03    ( -0.00171649   0.00170542 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   89.46     using 59 bins.
 Reduced chi-squared = 1.56947
# Null hypothesis probability of 3.89e-03 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 1.12513 ( -0.196245  0.19627 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.9901e-08 ( -2.12942e-08  2.20092e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.496 sec. to    0.504 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.13986     ( -0.343868   0.321894 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 9.67663E-03    ( -0.00170019   0.0154577 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   89.47     using 59 bins.
 Reduced chi-squared = 1.59768
# Null hypothesis probability of 2.98e-03 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 1.13193 ( -0.22569  0.20852 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.43596e-08 ( -1.76194e-08  8.47109e-09 ) ergs/cm2

Band function

Time interval is from   -0.496 sec. to    0.504 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]    : 16.9650  (-5.00283  8.52474)
R^2/D10^2   : 8.45835E-02  (-0.0827466   0.179053)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  101.47     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 2.65e-04 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.961e-09   1.909e-09
25- 50  2.191e-08   8.429e-09
50-150  4.500e-08   1.802e-08
15-150  7.187e-08   2.404e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-67.9927      -200)
Norm        : 4.41937       (-0.79217     0.79217)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   93.73     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.57e-03 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.104e-08   6.475e-09
25- 50  2.124e-08   1.209e-08
50-150  4.658e-08   2.704e-08
15-150  7.886e-08   4.541e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.64736        (-2.25177      3.12988)
R1^2/D10^2  : 0.870527        (-0.592498      2.0578)
kT2 [keV]   : 50.3801        (-23.0716      -50.3908)
R2^2/D10^2  : 3.06854E-03    (-0.00274975   0.00751709)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   86.29     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 4.47e-03 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.729e-09   5.550e-09
25- 50  2.048e-08   1.120e-08
50-150  7.858e-08   4.250e-08
15-150  1.088e-07   5.805e-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: 1.21642     ( -0.277633   0.277341 )
Norm@50keV  : 7.27312E-03    ( -0.0011086   0.00109778 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   58.67     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 4.14e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 2.348 sec: 0.855741 ( -0.125857  0.125864 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.72463e-07 ( -3.13519e-08  3.2359e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.22261     ( -0.286613   0.272046 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 7.27690E-03    ( -0.00110874   0.0138845 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   58.68     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.77e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 2.348 sec: 0.855523 ( -0.125802  0.125777 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.71904e-07 ( -3.36306e-08  3.23968e-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)  = 3.66e-08
S(50-100 keV) = 6.29e-08

T90 vs. Hardness ratio plot

T90                                   = 2.13199996948242 sec.
Hardness ratio (energy fluence ratio) = 1.71858

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.70423
Count Ratio (50-100 keV) / (15-25 keV) = 1.22228

Mask shadow pattern

IMX = -2.140563135164859E-01, IMY = 9.299182024394913E-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:
-119.224000 -1.420000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.4493  35.3399   77.7   9.7  102.4   0.0461   0.1    0.4	Her X-1                       
288.6581  10.8009   40.3  45.0   50.9  -0.2916  -0.3   12.0	GRS 1915+105                  
299.5846  35.1188    1.7  35.4   12.3   2.9838   6.7    5.0	Cyg X-1                       
308.3552  40.9913    0.0  38.9   -1.6   0.6659   1.5   11.3	Cyg X-3                       
326.3185  38.3400   12.4  52.3   -7.5  -0.7147  -0.9    7.0	Cyg X-2                       
241.1548   9.0906    3.1  37.7  124.0   2.9305   3.8 ------	UNKNOWN                       
318.9088  23.8788    3.7  55.6   11.7   5.4290   3.1 ------	UNKNOWN                       
294.6457  35.7818    2.9  31.6   14.9   1.4473   4.0 ------	UNKNOWN                       
215.2193  28.1630    2.6  35.3  177.2   1.7232   4.4 ------	UNKNOWN                       
195.4721  14.3918    3.3  58.1 -179.9   7.5448   3.6 ------	UNKNOWN                       
187.1990  23.8385    3.1  57.6 -165.4   4.9256   3.7 ------	UNKNOWN                       
320.7240  57.9156    2.4  41.4  -30.5   2.3735   4.8 ------	UNKNOWN

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

Time interval of the image:
-1.420000 0.928000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.2405  35.4579    0.0   9.5  103.4  -0.0189  -0.7   12.7	Her X-1                       
288.8558  10.8641    6.7  45.0   50.6   0.2047   1.7    5.9	GRS 1915+105                  
299.5658  35.2697    4.9  35.3   12.1   0.0922   2.3    4.3	Cyg X-1                       
308.0301  41.1132    4.5  38.6   -1.6  -0.1058  -2.6   10.3	Cyg X-3                       
326.2174  38.4165    4.0  52.2   -7.5   0.1975   2.9    6.1	Cyg X-2                       
235.7636  46.0686    1.0  13.1 -156.5   0.3045  11.2 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
49.276600 258.876610
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.5142  35.2525   12.3  17.7   60.3  -0.3420  -0.9    6.1	Her X-1                       
299.5765  35.1840    1.2  48.3   18.7   7.8622   9.7    1.3	Cyg X-1                       
308.1805  41.0355   19.5  50.8    7.4  -0.5093  -0.6    5.9	Cyg X-3                       
189.6407  28.9797    2.6  39.7 -159.5   2.2190   4.6 ------	UNKNOWN                       
178.7160  13.5939    3.6  57.6 -165.4   5.5054   3.2 ------	UNKNOWN                       
341.9789  61.1422    2.9  57.5  -27.2   7.4520   3.9 ------	UNKNOWN

Plot creation:
Sat Jul 30 06:58:22 EDT 2022