batgrbproduct analysis for trigger=1297508

batgrbproduct Analysis for Trigger=1297508

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Thu Jun 19 21:18:43 EDT 2025
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1297508
======================================================================

  Trigger: 01297508      Segment: 000

  BAT Trigger Time: 764210594.176   [s; MET]
      Trigger Stop: 764210595.2   [s; MET]
               UTC: 2025-03-21T00:42:38.895220    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 295.077345921574   Dec: 21.0409425585755  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.33
     Image Trigger?:     NO
     Rate S/N Ratio:     21.9772609758359  [ if not an image trigger ]
     Image S/N Ratio:    10.33

  Flight Position:   [ source = BAT ]
    RA: 295.077345921574   Dec: 21.0409425585755  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 295.099633284656   Dec: 21.0546812534247  [deg; J2000]  
        { 19h 40m 23.9s , +21d 03' 16.9" }
         +/- 1.81451489111712 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.0796650247301 [arcmin] (formal 1-sigma fit error)
    SNR: 12.9855536380598
 
  Angular difference between Flight and Ground position is 1.495683 arcmin
 
  Partial Coding Fraction: 0.2460938    [ including projection effects ]

  Duration
     T90: 6.20799994468689 +/- 1.35764500639118
        Measured from: -0.00800001621246338
                   to: 6.19999992847443     [s; relative to TRIGTIME]
     T50: 2.62399983406067 +/- 1.05551506860802
        Measured from: 0.440000057220459
                   to: 3.06399989128113     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.156000018119812     
                   to: 0.843999981880188     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.136000037193298     
                   to: 7.35199999809265     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.232739   0.411595   0.295570   0.048162
           0.039591   0.042222   0.035655   0.026890 [error]
 Peak      0.066197   0.145833   0.123721   0.016802
           0.015327   0.018472   0.016755   0.011510 [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 1.01e-07 1.74e-07 2.29e-07 6.10e-07 6.70e-07 1.12e-06   erg/cm2
              Error 1.92e-08 2.12e-08 3.39e-08 1.86e-07 8.39e-08 2.15e-07   erg/cm2
Peak flux Power-law 9.04e-01 1.02e+00 8.24e-01 1.11e+00 3.16e+00 3.86e+00   ph/cm2/s
              Error 2.27e-01 1.63e-01 1.28e-01 3.44e-01 4.57e-01 5.42e-01   ph/cm2/s
 
Fluence   Cutoff-PL 8.84e-08 1.91e-07 2.44e-07 2.24e-07 6.45e-07 7.48e-07   erg/cm2
              Error 2.24e-08 2.71e-08 3.94e-08 2.37e-07 8.83e-08 2.47e-07   erg/cm2
Peak flux Cutoff-PL 7.95e-01 1.08e+00 8.94e-01 6.36e-01 3.12e+00 3.40e+00   ph/cm2/s
              Error 2.71e-01 1.93e-01 1.66e-01 4.85e-01 4.61e-01 6.99e-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    1.608    0.188    -      -           9.58e-03 1.14e-03   54.550 57
CPL   0.782    0.853      74.4  123.5      2.51e-02 3.14e-02   51.150 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.308    0.220    -      -           2.64e-02 3.65e-03   58.290 57
CPL   0.693    0.917     116.3  -35.6      5.19e-02 7.35e-02   56.970 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: 2.496000 sec.
T50 in the 50-300 keV band: 1.536000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    7.488   -0.136    7.352
T90     6.208   -0.008    6.200
T50     2.624    0.440    3.064
Peak    1.000   -0.156    0.844
  • 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
      295.0996    21.0547   0.0147    44.2947    21.9336         1.0379033     12.986 TRIG_01297508                 
     
    Foreground time interval of the image:
     -0.136   7.352 (delta_t =   7.488 [sec])
    Background time interval of the image:
    -239.176  -0.136 (delta_t = 239.040 [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)

    Quad-rate summed light curves (from T0-300s to T0+1000s)

    Spectral Evolution

    Spectra

    Notes:

    Time averaged spectrum fit using the average DRM

    Power-law model
    Time interval is from   -0.136 sec. to    7.352 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.60779     ( -0.186296   0.189312 )
    Norm@50keV  : 9.58040E-03    ( -0.00113915   0.00113402 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   54.55     using 59 bins.
     Reduced chi-squared = 0.957018
    # Null hypothesis probability of 5.68e-01 with 57 degrees of freedom
     
    Photon flux (15-150 keV)    in 7.488 sec: 1.23415 ( -0.14856  0.14895 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 6.70372e-07 ( -8.3632e-08  8.407e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   -0.136 sec. to    7.352 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.782352     ( -0.937201   0.767975 )
    Epeak [keV] : 74.4403      ( -18.496 228.587 )
    Norm@50keV  : 2.50615E-02    ( -0.0146082   0.0482185 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   51.15     using 59 bins.
     Reduced chi-squared = 0.913393
    # Null hypothesis probability of 6.59e-01 with 56 degrees of freedom
     
    Photon flux (15-150 keV)    in 7.488 sec: 1.20274 ( -0.1516  0.1519 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 6.4492e-07 ( -8.82266e-08  8.82858e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   -0.136 sec. to    7.352 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]    : 14.3727  (-1.82699  2.12306)
    R^2/D10^2   : 0.166030  (-0.0659681   0.105983)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   63.24     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 2.66e-01 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.410e-08   1.233e-08
    25- 50  2.065e-07   3.699e-08
    50-150  2.845e-07   6.118e-08
    15-150  5.451e-07   9.188e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 165.074       (-62.5876      -165.04)
    Norm        : 5.12830       (-0.651049     0.75968)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   52.15     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 6.57e-01 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  9.776e-08   5.141e-08
    25- 50  1.836e-07   9.822e-08
    50-150  3.766e-07   2.062e-07
    15-150  6.579e-07   3.507e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 8.01844        (-2.98266      3.28438)
    R1^2/D10^2  : 0.823685        (-0.521925      2.84134)
    kT2 [keV]   : 25.0688        (-7.63338      26.689)
    R2^2/D10^2  : 1.54870E-02    (-0.0140473   0.0221259)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   50.56     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 6.45e-01 with 55 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  8.447e-08   4.659e-08
    25- 50  1.980e-07   9.654e-08
    50-150  3.680e-07   1.994e-07
    15-150  6.505e-07   3.326e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from   -0.156 sec. to    0.844 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.30782     ( -0.220971   0.21887 )
    Norm@50keV  : 2.64138E-02    ( -0.00365505   0.00365473 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   58.29     using 59 bins.
     Reduced chi-squared = 1.02263
    # Null hypothesis probability of 4.28e-01 with 57 degrees of freedom
     
    Photon flux (15-150 keV)    in 1 sec: 3.15586 ( -0.45676  0.45799 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.60549e-07 ( -3.82538e-08  3.83607e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   -0.156 sec. to    0.844 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.693257     ( -1.11419   0.719736 )
    Epeak [keV] : 116.320      ( -45.0996 -116.321 )
    Norm@50keV  : 5.18982E-02    ( -0.0279757   0.119115 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   56.97     using 59 bins.
     Reduced chi-squared = 1.01732
    # Null hypothesis probability of 4.39e-01 with 56 degrees of freedom
     
    Photon flux (15-150 keV)    in 1 sec: 3.11722 ( -0.4602  0.46152 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.56372e-07 ( -3.99756e-08  3.94565e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   -0.156 sec. to    0.844 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]    : 17.4824  (-2.65772  3.30616)
    R^2/D10^2   : 0.233503  (-0.106055   0.178915)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   65.13     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 2.15e-01 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.442e-08   3.771e-09
    25- 50  6.522e-08   1.235e-08
    50-150  1.435e-07   3.551e-08
    15-150  2.232e-07   4.705e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 200.000       (-48.1114      -200)
    Norm        : 13.3031       (-1.85996     1.85996)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   61.14     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 3.30e-01 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.313e-08   1.873e-08
    25- 50  6.373e-08   3.606e-08
    50-150  1.398e-07   7.800e-08
    15-150  2.366e-07   1.317e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 11.3061        (-4.83841      4.04945)
    R1^2/D10^2  : 0.731330        (-0.4133      2.33358)
    kT2 [keV]   : 45.4452        (-25.2623      -47.7227)
    R2^2/D10^2  : 6.56664E-03    (-0.00529518   0.0759224)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   55.95     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 4.39e-01 with 55 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.122e-08   1.235e-08
    25- 50  6.872e-08   3.788e-08
    50-150  1.670e-07   8.625e-08
    15-150  2.569e-07   1.275e-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: 1.60779     ( -0.186296   0.189312 )
    Norm@50keV  : 9.58040E-03    ( -0.00113915   0.00113402 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   54.55     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 5.68e-01 with 57 degrees of freedom
     
    Photon flux (15-150 keV)    in 7.488 sec: 1.23411 ( -0.148554  0.148936 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 6.70276e-07 ( -8.36222e-08  8.4079e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.782355     ( -0.937204   0.767972 )
    Epeak [keV] : 74.4405      ( -18.4961 228.583 )
    Norm@50keV  : 2.50613E-02    ( -0.0146081   0.0482186 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   51.15     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 6.59e-01 with 56 degrees of freedom
     
    Photon flux (15-150 keV)    in 7.488 sec: 1.20261 ( -0.15157  0.15185 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 6.45148e-07 ( -8.82708e-08  8.83509e-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)  = 1.74e-07
    S(50-100 keV) = 2.29e-07
    

    T90 vs. Hardness ratio plot

    T90                                   = 6.20799994468689 sec.
    Hardness ratio (energy fluence ratio) = 1.31609
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.76848
    Count Ratio (50-100 keV) / (15-25 keV) = 1.26996
    

    Mask shadow pattern

    IMX = 9.050566007664759E-01, IMY = -3.644467887289749E-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:
    -239.176000 -0.136000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    299.5802  35.2215    0.8  32.6   36.5   6.9919  14.4    1.3	Cyg X-1                       
    308.0869  40.9793    4.1  24.1   41.6   1.1156   2.8    1.9	Cyg X-3                       
    326.1578  38.5322    0.0  12.6   14.6   0.6993   2.3   12.6	Cyg X-2                       
     67.3941  70.3636    2.5  47.4  155.9   4.5350   4.6 ------	UNKNOWN                       
    318.6451  63.2474    3.0  22.4  102.4   1.6542   3.8 ------	UNKNOWN                       
    336.6956  11.0807    2.4  33.8  -43.9   2.2057   4.8 ------	UNKNOWN                       
    314.4779  -9.4121    2.5  59.1  -20.5   6.6776   4.7 ------	UNKNOWN                       
    

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

    Time interval of the image:
    -0.136000 7.352000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    299.4284  35.1969    5.0  32.7   36.6   0.1118   2.3    7.9	Cyg X-1                       
    308.1105  40.9545  569.9  24.1   41.5   0.0007   0.0    0.1	Cyg X-3                       
    326.1084  38.3553    7.1  12.7   14.0   0.0505   1.6    3.6	Cyg X-2                       
    295.0996  21.0547    0.9  44.3   21.9   1.0389  13.0 ------	UNKNOWN                       
     27.0013  24.5786    2.5  42.2 -128.6   0.3255   4.6 ------	UNKNOWN                       
      6.2280  11.8981    2.5  39.3  -92.7   0.4646   4.5 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    107.324590 377.124600
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    254.2862  35.2833   26.4  38.3  111.9   0.5266   0.4    9.1	Her X-1                       
    268.4161  -1.3638    4.3  34.4   43.8  -1.9721  -2.7    6.1	SW J1753.5-0127               
    270.3358 -25.0714    5.4  52.0   19.9   2.5271   2.1    2.8	GX 5-1                        
    270.3365 -25.8248    9.9  52.6   19.5  -1.4299  -1.2    5.2	GRS 1758-258                  
    274.0059 -14.0365  367.4  40.7   23.5   0.0215   0.0    0.0	GX 17+2                       
    275.8535 -30.4043    4.2  54.7   11.5   3.5736   2.7    4.3	H1820-303                     
    284.9868 -25.0433    8.9  47.1    3.7  -0.8400  -1.3    7.8	HT1900.1-2455                 
    288.8162  10.9397    3.9  11.7   22.8   1.1457   3.0    1.1	GRS 1915+105                  
    299.5542  35.2081    0.6  14.7 -174.2   7.4780  18.6    1.8	Cyg X-1                       
    308.1397  40.9284    2.9  22.8 -162.6   1.4587   3.9    2.0	Cyg X-3                       
    326.1403  38.4499    8.6  31.9 -138.9   0.6843   1.3    7.8	Cyg X-2                       
    247.8469  54.3391    2.3  48.6  136.4   8.0920   5.0 ------	UNKNOWN                       
    263.5017 -18.7396    2.6  50.4   31.2   5.9245   4.5 ------	UNKNOWN                       
    
    Plot creation:
    Fri Jun 20 01:47:41 EDT 2025