batgrbproduct analysis for trigger=1162001

batgrbproduct Analysis for Trigger=1162001

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): Wed Jun 14 15:06:19 EDT 2023
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1162001
======================================================================

  Trigger: 01162001      Segment: 000

  BAT Trigger Time: 701708119.552   [s; MET]
      Trigger Stop: 701708120.576   [s; MET]
               UTC: 2023-03-28T14:54:48.547340    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 290.985760498204   Dec: 80.0162708424252  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    17.77
     Image Trigger?:     NO
     Rate S/N Ratio:     53.7866154354408  [ if not an image trigger ]
     Image S/N Ratio:    17.77

  Flight Position:   [ source = BAT ]
    RA: 290.985760498204   Dec: 80.0162708424252  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 291.034112417174   Dec: 80.0122817911935  [deg; J2000]  
        { 19h 24m 08.2s , +80d 00' 44.2" }
         +/- 0.829413160582525 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.265517025807718 [arcmin] (formal 1-sigma fit error)
    SNR: 39.7337833760157
 
  Angular difference between Flight and Ground position is 0.557096 arcmin
 
  Partial Coding Fraction: 0.46875    [ including projection effects ]

  Duration
     T90: 22.336000084877 +/- 5.71009492341089
        Measured from: -2.62400007247925
                   to: 19.7120000123978     [s; relative to TRIGTIME]
     T50: 6.78400003910065 +/- 0.687255446672283
        Measured from: 0.911999940872192
                   to: 7.69599997997284     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.259999990463257     
                   to: 1.25999999046326     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -7.37600004673004     
                   to: 31.7599999904633     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.997102   2.683602   2.039914   0.478731
           0.083863   0.088694   0.076842   0.061593 [error]
 Peak      0.206173   0.355605   0.339686   0.105158
           0.017813   0.021302   0.020469   0.013713 [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 7.12e-07 1.21e-06 1.55e-06 4.03e-06 4.58e-06 7.51e-06   erg/cm2
              Error 5.02e-08 5.04e-08 7.80e-08 4.44e-07 1.88e-07 4.97e-07   erg/cm2
Peak flux Power-law 2.30e+00 2.68e+00 2.26e+00 3.20e+00 8.39e+00 1.04e+01   ph/cm2/s
              Error 2.71e-01 1.95e-01 1.60e-01 4.75e-01 5.40e-01 6.71e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.58e-07 1.24e-06 1.60e-06 2.44e-06 4.46e-06 5.95e-06   erg/cm2
              Error 6.26e-08 5.82e-08 8.62e-08 9.22e-07 2.08e-07 9.34e-07   erg/cm2
Peak flux Cutoff-PL 2.13e+00 2.75e+00 2.35e+00 2.29e+00 8.29e+00 9.52e+00   ph/cm2/s
              Error 3.39e-01 2.17e-01 2.01e-01 9.15e-01 5.54e-01 1.11e+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    1.633    0.070    -      -           1.26e-02 4.91e-04   37.160 57
CPL   1.258    0.295     102.9   84.4      1.91e-02 6.29e-03   32.000 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.251    0.105    -      -           7.09e-02 4.40e-03   61.870 57
CPL   0.913    0.419     178.7  -53.1      1.02e-01 4.74e-02   59.970 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: 14.592000 sec.
T50 in the 50-300 keV band: 5.056000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   39.136   -7.376   31.760
T90    22.336   -2.624   19.712
T50     6.784    0.912    7.696
Peak    1.000    0.260    1.260

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
  291.0341    80.0123   0.0049    37.3609  -147.3329         6.8326550     39.734 TRIG_01162001                 
 
Foreground time interval of the image:
 -7.376  16.149 (delta_t =  23.525 [sec])
Background time interval of the image:
-239.552  -7.376 (delta_t = 232.176 [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   -7.376 sec. to   31.760 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.63337     ( -0.0700832   0.0703932 )
Norm@50keV  : 1.25712E-02    ( -0.000490979   0.00049044 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   37.16     using 59 bins.
 Reduced chi-squared = 0.65193
# Null hypothesis probability of 9.81e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 39.14 sec: 1.63266 ( -0.06768  0.06786 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.5847e-06 ( -1.87861e-07  1.884e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from   -7.376 sec. to   31.760 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.25771     ( -0.304497   0.284774 )
Epeak [keV] : 102.879      ( -24.7679 144.102 )
Norm@50keV  : 1.91007E-02    ( -0.00508048   0.00750722 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   32.00     using 59 bins.
 Reduced chi-squared = 0.571429
# Null hypothesis probability of 9.96e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 39.14 sec: 1.59419 ( -0.07303  0.07343 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.46901e-06 ( -2.08503e-07  2.07817e-07 ) ergs/cm2

Band function

Time interval is from   -7.376 sec. to   31.760 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]    : 14.8245  (  )
R^2/D10^2   : 0.183574  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  161.73     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 5.78e-12 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.312e-07   2.679e-08
25- 50  1.302e-06   6.576e-08
50-150  1.937e-06   1.485e-07
15-150  3.570e-06   1.624e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 168.798       (-29.8321      -168.437)
Norm        : 6.62667       (-0.301363     0.325921)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   31.99     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.97e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.587e-07   4.168e-08
25- 50  1.241e-06   1.029e-07
50-150  2.567e-06   7.259e-07
15-150  4.467e-06   8.090e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.26995        (-1.23831      1.30824)
R1^2/D10^2  : 1.46574        (-0.595729      1.31703)
kT2 [keV]   : 24.8846        (-3.48806      5.43939)
R2^2/D10^2  : 2.18876E-02    (-0.011537   0.0180017)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   40.00     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.36e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.981e-07   8.161e-08
25- 50  1.267e-06   1.327e-07
50-150  2.544e-06   3.826e-07
15-150  4.409e-06   4.873e-07

Peak spectrum fit

Power-law model

Time interval is from    0.260 sec. to    1.260 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.25132     ( -0.105286   0.104965 )
Norm@50keV  : 7.09162E-02    ( -0.00439566   0.00439563 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   61.87     using 59 bins.
 Reduced chi-squared = 1.08544
# Null hypothesis probability of 3.06e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 8.38933 ( -0.54009  0.54079 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.09561e-07 ( -4.78932e-08  4.80565e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    0.260 sec. to    1.260 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.912834     ( -0.457495   0.379689 )
Epeak [keV] : 178.684      ( -72.4941 -178.684 )
Norm@50keV  : 0.101884    ( -0.033   0.0618033 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   59.97     using 59 bins.
 Reduced chi-squared = 1.07089
# Null hypothesis probability of 3.34e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 8.28825 ( -0.55414  0.55472 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.78867e-07 ( -4.77769e-08  5.45487e-08 ) ergs/cm2

Band function

Time interval is from    0.260 sec. to    1.260 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]    : 18.6649  (-1.45754  1.61239)
R^2/D10^2   : 0.487448  (-0.118277   0.152967)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  106.67     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 7.41e-05 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.359e-08   3.810e-09
25- 50  1.595e-07   1.440e-08
50-150  4.069e-07   4.425e-08
15-150  6.001e-07   4.530e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-12.5875      -200)
Norm        : 34.9723       (-2.20314     2.20314)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   84.11     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.13e-02 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.710e-08   5.815e-09
25- 50  1.676e-07   1.310e-08
50-150  3.675e-07   8.090e-08
15-150  6.222e-07   9.650e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.36058        (-2.79522      2.77126)
R1^2/D10^2  : 2.85180        (-1.39305      5.71428)
kT2 [keV]   : 34.0700        (-8.76975      26.3439)
R2^2/D10^2  : 5.11285E-02    (-0.041141   0.0972869)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   63.13     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 2.11e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.814e-08   1.433e-08
25- 50  1.674e-07   4.552e-08
50-150  4.758e-07   2.071e-07
15-150  7.013e-07   2.292e-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: 1.61465     ( -0.0640213   0.0642865 )
Norm@50keV  : 1.94191E-02    ( -0.000691643   0.00069108 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   34.82     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.91e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 23.52 sec: 2.50689 ( -0.0955193  0.0957799 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.26403e-06 ( -1.59555e-07  1.59863e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.22706     ( -0.278016   0.261797 )
Epeak [keV] : 104.826      ( -23.5766 101.753 )
Norm@50keV  : 2.97905E-02    ( -0.00730903   0.0104127 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   28.28     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.99e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 23.52 sec: 2.44527 ( -0.10314  0.10361 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.15859e-06 ( -1.76706e-07  1.75765e-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)  = 1.21e-06
S(50-100 keV) = 1.55e-06

T90 vs. Hardness ratio plot

T90                                   = 22.336000084877 sec.
Hardness ratio (energy fluence ratio) = 1.28099

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.34375
Count Ratio (50-100 keV) / (15-25 keV) = 1.02144

Mask shadow pattern

IMX = -6.427102760570491E-01, IMY = 4.120911943418059E-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:
-239.552000 -7.376000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.5901  35.2298    6.5   9.8   44.6   0.5653   1.8    9.4	Her X-1                       
268.2034  -1.3470    0.0  46.6   10.9  -0.6351  -1.2   11.7	SW J1753.5-0127               
288.8775  10.8997    6.3  42.4  -23.0   0.9967   1.8    5.4	GRS 1915+105                  
299.5859  35.1910    0.8  32.3  -63.7   7.9539  14.8    0.7	Cyg X-1                       
308.1640  41.0248    3.5  35.8  -78.3   2.2572   3.3    5.0	Cyg X-3                       
261.8048 -10.9570    2.7  55.5   20.4   6.7834   4.3 ------	UNKNOWN                       
161.1663  83.7326    2.8  46.7 -164.7   3.0319   4.1 ------	UNKNOWN                       
286.4519  14.7063    3.0  37.9  -23.0   1.7781   3.9 ------	UNKNOWN

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

Time interval of the image:
-7.376000 16.148600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.5510  35.3835    3.4   9.7   45.1  -0.3439  -3.4    5.2	Her X-1                       
268.3109  -1.5285    7.8  46.8   10.8  -0.2949  -1.5    5.7	SW J1753.5-0127               
288.6815  10.8699    5.8  42.3  -22.7   0.3796   2.0    8.2	GRS 1915+105                  
299.5900  35.2014   15.0  32.3  -63.7  -0.1523  -0.8    0.0	Cyg X-1                       
308.1891  40.9408   18.7  35.9  -78.2  -0.1790  -0.6    3.6	Cyg X-3                       
213.5794  26.1148    3.1  40.6  102.5   1.2724   3.7 ------	UNKNOWN                       
252.7378  -6.0404    2.4  50.8   31.7   1.7459   4.9 ------	UNKNOWN                       
291.0341  80.0123    0.3  37.4 -147.3   6.8323  39.8 ------	UNKNOWN                       
 58.0738  79.1616    2.3  55.7 -151.5   2.5677   4.9 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
93.148590 719.636300
720.448000 871.748600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.4050  35.3875    4.4  46.8   28.7   3.9284   2.6    3.7	Her X-1                       
299.5860  35.2180    0.7  44.9  -23.0  24.8150  15.7    1.0	Cyg X-1                       
308.1542  40.9328    3.1  39.6  -33.5   5.0430   3.7    2.3	Cyg X-3                       
326.2084  38.2453    6.8  43.9  -53.8   5.1135   1.7    4.9	Cyg X-2                       
248.0804  35.4345    3.0  47.6   35.7   7.8135   3.8 ------	UNKNOWN                       
274.5848  25.2223    2.8  55.2    5.1  10.1764   4.2 ------	UNKNOWN                       
274.3015  31.4931    2.7  49.0    5.9   5.7363   4.3 ------	UNKNOWN                       
 92.8796  55.0995    2.6  44.5 -178.3   8.1283   4.4 ------	UNKNOWN                       
 76.9432  51.9051    3.0  46.7 -164.6   7.5308   3.8 ------	UNKNOWN                       
 49.0029  55.1864    2.5  40.4 -141.9   8.0099   4.6 ------	UNKNOWN                       
  8.9589  50.5768    3.5  38.4 -103.3   9.9111   3.3 ------	UNKNOWN

Plot creation:
Fri Jun 16 09:11:13 EDT 2023