batgrbproduct analysis for trigger=1343270

batgrbproduct Analysis for Trigger=1343270

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Mon Aug 18 18:22:31 EDT 2025
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1343270/batgroup_hand_proc
======================================================================

  Trigger: 01343270      Segment: 000

  BAT Trigger Time: 777173518.912   [s; MET]
      Trigger Stop: 777173519.936   [s; MET]
               UTC: 2025-08-18T01:31:22.746600    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 213.833461809625   Dec: -58.0074587914962  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.69
     Image Trigger?:     NO
     Rate S/N Ratio:     15.6843871413581  [ if not an image trigger ]
     Image S/N Ratio:    8.69

  Flight Position:   [ source = BAT ]
    RA: 213.833461809625   Dec: -58.0074587914962  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 213.815803100936   Dec: -58.0101491120977  [deg; J2000]  
        { 14h 15m 15.8s , -58d 00' 36.5" }
         +/- 1.12707676973162 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.379148364636382 [arcmin] (formal 1-sigma fit error)
    SNR: 25.6388827502049
 
  Angular difference between Flight and Ground position is 0.584072 arcmin
 
  Partial Coding Fraction: 0.4453125    [ including projection effects ]

  Duration
     T90: 106.855999946594 +/- 3.79147737820475
        Measured from: -0.803999900817871
                   to: 106.052000045776     [s; relative to TRIGTIME]
     T50: 34.7159998416901 +/- 1.14471311616346
        Measured from: 48.2320001125336
                   to: 82.9479999542236     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 77.6320000886917     
                   to: 78.6320000886917     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -15.9159998893738     
                   to: 141.428000092506     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     7.408873   8.075484   4.972403   1.113392
           0.108067   0.110833   0.090668   0.071537 [error]
 Peak      0.186833   0.255382   0.172681   0.041815
           0.009576   0.010246   0.008832   0.005860 [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 2.34e-06 3.48e-06 3.87e-06 8.13e-06 1.21e-05 1.78e-05   erg/cm2
              Error 1.00e-07 8.34e-08 1.02e-07 4.98e-07 2.50e-07 5.42e-07   erg/cm2
Peak flux Power-law 2.01e+00 1.84e+00 1.17e+00 1.13e+00 5.50e+00 6.16e+00   ph/cm2/s
              Error 1.68e-01 9.36e-02 7.28e-02 1.45e-01 2.73e-01 2.92e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.34e-06 3.48e-06 3.87e-06 8.06e-06 1.21e-05 1.78e-05   erg/cm2
              Error 8.37e-08 8.15e-08 7.78e-08 8.71e-07 2.48e-07 1.01e-06   erg/cm2
Peak flux Cutoff-PL 1.92e+00 1.88e+00 1.19e+00 8.62e-01 5.43e+00 5.86e+00   ph/cm2/s
              Error 2.05e-01 1.09e-01 8.09e-02 2.31e-01 2.88e-01 4.52e-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    1.846    0.042    -      -           8.39e-03 1.72e-04   32.520 57
CPL   1.833    0.099     676.0    0.0      8.51e-03 0.00e+00   32.570 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.658    0.085    -      -           4.20e-02 2.06e-03   41.280 57
CPL   1.418    0.320     121.8  -38.1      5.55e-02 2.14e-02   39.790 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: 99.136000 sec.
T50 in the 50-300 keV band: 34.816000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  157.344  -15.916  141.428
T90   106.856   -0.804  106.052
T50    34.716   48.232   82.948
Peak    1.000   77.632   78.632
  • Click here for the BAT GCN circular template
  • Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minutes to calcaulte

    Image

    Pre-slew 15-350 keV image (Event data; bkg subtracted)

    #   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
      213.8158 -58.0101 0.0075   27.6   86.2       3.9442    25.6  TRIG_01343270       
    ------------------------------------------
     
    Foreground time interval of the image:
    -15.916  21.189 (delta_t =  37.105 [sec])
    Background time interval of the image:
    -639.411 -630.782 (delta_t =   8.629 [sec])
    -239.912 -15.916 (delta_t = 223.996 [sec])
    

    Lightcurves

    Notes:

    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)

    Spectra

    Notes:

    Time averaged spectrum fit using the pre-slew DRM

    Power-law model
    Time interval is from  -15.916 sec. to  141.428 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.84625     ( -0.0418199   0.0419991 )
    Norm@50keV  : 8.39485E-03    ( -0.000172247   0.000172202 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          32.52 using 59 PHA bins.
    # Reduced chi-squared =         0.5705 for     57 degrees of freedom 
    # Null hypothesis probability =   9.962625e-01
     
    Photon flux (15-150 keV)    in 157.3 sec: 1.17819 ( -0.0299206  0.0301093 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.21425e-05 ( -2.49846e-07  2.49915e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from  -15.916 sec. to  141.428 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.83287     ( -0.144367   0.0535845 )
    Epeak [keV] : 675.993      (   )
    Norm@50keV  : 8.51486E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          32.57 using 59 PHA bins.
    # Reduced chi-squared =         0.5815 for     56 degrees of freedom 
    # Null hypothesis probability =   9.948505e-01
     
    Photon flux (15-150 keV)    in 157.3 sec: 1.17826 ( -0.03078  0.02874 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.21427e-05 ( -2.49022e-07  2.47637e-07 ) ergs/cm2
     
    
    Band function
    Time interval is from  -15.916 sec. to  141.428 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.64111   ( 1.47638   1.47638 )
    beta        : -1.84993    ( 1.85044   0.0458506 )
    Epeak [keV] : 49.6937      ( -38.0783 -38.0783 )
    Norm@50keV   : 1.16079E-02    ( -0.00336615   0.958694 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          32.47 using 59 PHA bins.
    # Reduced chi-squared =         0.5904 for     55 degrees of freedom 
    # Null hypothesis probability =   9.933305e-01
     
    Photon flux (15-150 keV)    in 157.3 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]    : 14.5489  (  )
    R^2/D10^2   : 0.125033  (   )
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         622.75 using 59 PHA bins.
    # Reduced chi-squared =         10.926 for     57 degrees of freedom 
    # Null hypothesis probability =   4.143749e-96
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  8.755e-07   3.932e-08
    25- 50  3.381e-06   9.517e-08
    50-150  4.802e-06   1.715e-07
    15-150  9.058e-06   2.021e-07
    
    Thermal bremsstrahlung (OTTB)
    XSPEC12>exit
     XSPEC: quit
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 120.246       (-14.0095      9.57802)
    Norm        : 4.72173       (-0.133185     0.225133)
    ------------------------------------------------------------
     Reduced chi-squared = 
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.934e-06   1.062e-07
    25- 50  3.462e-06   1.337e-07
    50-150  6.184e-06   1.271e-06
    15-150  1.158e-05   1.332e-06
    
    Double BB
    XSPEC12>exit
     XSPEC: quit
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 6.98379        (-0.511203      0.534949)
    R1^2/D10^2  : 1.41335        (-0.340001      0.482501)
    kT2 [keV]   : 25.9608        (-1.96044      2.40729)
    R2^2/D10^2  : 1.13916E-02    (-0.00322584   0.00402574)
    ------------------------------------------------------------
     Reduced chi-squared = 
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.943e-06   1.447e-07
    25- 50  3.557e-06   1.424e-07
    50-150  6.291e-06   3.099e-07
    15-150  1.179e-05   4.318e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from   77.632 sec. to   78.632 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.65844     ( -0.0847362   0.0855906 )
    Norm@50keV  : 4.19841E-02    ( -0.00206758   0.00206058 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          41.28 using 59 PHA bins.
    # Reduced chi-squared =         0.7241 for     57 degrees of freedom 
    # Null hypothesis probability =   9.419355e-01
     
    Photon flux (15-150 keV)    in 1 sec: 5.49744 ( -0.272678  0.27315 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.90143e-07 ( -2.0247e-08  2.03178e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   77.632 sec. to   78.632 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.41815     ( -0.360416   0.279797 )
    Epeak [keV] : 121.780      ( -45.539 -121.781 )
    Norm@50keV  : 5.54651E-02    ( -0.0147973   0.0280292 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          39.79 using 59 PHA bins.
    # Reduced chi-squared =         0.7106 for     56 degrees of freedom 
    # Null hypothesis probability =   9.500888e-01
     
    Photon flux (15-150 keV)    in 1 sec: 5.42958 ( -0.28755  0.28791 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.83874e-07 ( -2.2351e-08  2.222e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   77.632 sec. to   78.632 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.18488   ( 1.13883   4.37733 )
    beta        : -1.83368    ( 1.83355   0.21199 )
    Epeak [keV] : 75.9146      ( -76.7744 46.7825 )
    Norm@50keV   : 7.57495E-02    ( -0.0325192   1.76497 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          38.75 using 59 PHA bins.
    # Reduced chi-squared =         0.7045 for     55 degrees of freedom 
    # Null hypothesis probability =   9.525562e-01
     
    Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.82352e-07 ( -3.82345e-07  -2.1755e-08 ) ergs/cm2
     
    
    Single BB
     XSPEC: quit
     
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 13.8882  (  )
    R^2/D10^2   : 0.783809  (   )
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
     Reduced chi-squared = 
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.196e-08   2.885e-09
    25- 50  1.179e-07   6.600e-09
    50-150  1.491e-07   1.515e-08
    15-150  2.990e-07   1.675e-08
    
    Thermal bremsstrahlung (OTTB)
    XSPEC12>exit
     XSPEC: quit
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 155.644       (-32.1518      -155.494)
    Norm        : 22.5336       (-1.25938     1.41187)
    ------------------------------------------------------------
     Reduced chi-squared = 
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.769e-08   4.070e-09
    25- 50  1.075e-07   9.325e-09
    50-150  2.154e-07   6.420e-08
    15-150  3.806e-07   7.230e-08
    
    Double BB
    XSPEC12>exit
     XSPEC: quit
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 7.34187        (-1.39636      1.58151)
    R1^2/D10^2  : 5.19839        (-2.32931      5.32627)
    kT2 [keV]   : 26.3338        (-5.10418      10.5774)
    R2^2/D10^2  : 5.78604E-02    (-0.0397524   0.0752002)
    ------------------------------------------------------------
     Reduced chi-squared = 
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.395e-08   7.495e-09
    25- 50  1.102e-07   1.384e-08
    50-150  2.148e-07   5.505e-08
    15-150  3.790e-07   7.325e-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: 1.71732     ( -0.095854   0.0969012 )
    Norm@50keV  : 6.69061E-03    ( -0.000354689   0.000352984 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          60.54 using 59 PHA bins.
    # Reduced chi-squared =          1.062 for     57 degrees of freedom 
    # Null hypothesis probability =   3.491770e-01
     
    Photon flux (15-150 keV)    in 37.1 sec: 0.894033 ( -0.0479477  0.0481324 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.29525e-06 ( -1.26702e-07  1.27242e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.71971     ( -0.0990199   0.0951474 )
    Epeak [keV] : 9999.36      ( -9999.35 -9999.36 )
    Norm@50keV  : 6.68780E-03    ( -0.00261401   0.00262656 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          60.56 using 59 PHA bins.
    # Reduced chi-squared =          1.081 for     56 degrees of freedom 
    # Null hypothesis probability =   3.149246e-01
     
    Photon flux (15-150 keV)    in 37.1 sec: 0.894193 ( -0.02548  0.047106 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.29521e-06 ( -1.30581e-07  1.25313e-07 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.60185   ( 1.60185   1.60185 )
    beta        : -1.71732    ( -0.0969325   0.0959402 )
    Epeak [keV] : 23.7253      ( -23.7253 -23.7253 )
    Norm@50keV   : 9.44215E-03    ( -0.00333155   0.947882 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          60.54 using 59 PHA bins.
    # Reduced chi-squared =          1.101 for     55 degrees of freedom 
    # Null hypothesis probability =   2.826456e-01
     
    Photon flux (15-150 keV)    in 37.1 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)  = 3.48e-06
    S(50-100 keV) = 3.87e-06
    

    T90 vs. Hardness ratio plot

    T90                                   = 106.855999946594 sec.
    Hardness ratio (energy fluence ratio) = 1.11207
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.08997
    Count Ratio (50-100 keV) / (15-25 keV) = 0.671142
    

    Mask shadow pattern

    IMX = 3.488050120015563E-02, IMY = -5.217212374649708E-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:
    -639.411400 -630.782000
    -239.912000 -15.916000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.5379 -40.5559    0.4  30.1 -148.7  13.9506  30.4    0.4	Vela X-1                      
    170.2392 -60.4720    2.9  17.7  140.1   1.5051   4.0    9.3	Cen X-3                       
    186.2781 -62.8119   83.3  20.5  117.2   0.0618   0.1   10.7	GX 301-2                      
    136.7810 -65.1631    3.4  31.0  161.7   1.6107   3.4 ------	UNKNOWN                       
    156.1610 -37.4919    3.5  16.2 -125.9   1.2395   3.3 ------	UNKNOWN                       
    

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

    Time interval of the image:
    -15.916000 21.188630
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.5197 -40.5910    2.4  30.1 -148.8  -0.4709  -4.9    2.2	Vela X-1                      
    170.6000 -60.5635    8.2  17.7  139.5  -0.1290  -1.4    9.1	Cen X-3                       
    187.1172 -62.7589    0.0  20.6  116.2   0.0294   0.3   12.7	GX 301-2                      
    213.8158 -58.0102    0.4  27.6   86.2   3.9444  25.6 ------	UNKNOWN                       
    218.2703  -1.3441    2.6  56.1    4.3   2.6319   4.5 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    85.988600 482.131600
    520.088000 953.288600
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    170.4376 -60.4301    5.7  22.0 -141.6   1.6054   2.0   12.1	Cen X-3                       
    187.0557 -62.7599    3.9  14.0 -147.8   2.0416   2.9   11.0	GX 301-2                      
    244.9860 -15.6350    1.2  48.3   15.1  12.1584   9.3    0.5	Sco X-1                       
    255.8435 -37.8867    6.0  33.7   45.2   2.3692   1.9    7.2	4U 1700-377                   
    256.4517 -36.3669    5.4  35.2   44.2   2.8024   2.1    3.5	GX 349+2                      
    262.9859 -24.7423    8.6  47.9   40.9   2.5674   1.3    1.3	GX 1+4                        
    264.5984 -44.6002    0.0  33.5   62.2  -2.2891  -1.6   10.9	4U 1735-44                    
    262.8458 -33.9068   19.2  40.4   48.4   1.0124   0.6    8.3	GX 354-0                      
     61.5598 -68.1734    2.4  52.2  165.9  11.8731   4.9 ------	UNKNOWN                       
    213.7419 -57.9830    1.7   0.1  -97.4   5.0136   6.8 ------	UNKNOWN                       
    
    Plot creation:
    Thu Aug 21 18:26:55 EDT 2025