batgrbproduct analysis for trigger=1218081

batgrbproduct Analysis for Trigger=1218081

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Fri Mar  1 14:47:07 EST 2024
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1218081/GCN5_download_cron
======================================================================

  Trigger: 01218081      Segment: 000

  BAT Trigger Time: 730923352   [s; MET]
      Trigger Stop: 730923448   [s; MET]
               UTC: 2024-02-29T18:15:18.996940    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 244.693042837657   Dec: -15.6496478450034  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    15.94
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    15.94

  Flight Position:   [ source = BAT ]
    RA: 244.693042837657   Dec: -15.6496478450034  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 244.562586311667   Dec: -15.5791416350749  [deg; J2000]  
        { 16h 18m 15.0s , -15d 34' 44.9" }
         +/- 5.85407233650046 [arcmin] (estimated 90% radius based on SNR)
         +/- 4.07798633261859 [arcmin] (formal 1-sigma fit error)
    SNR: 2.43640615396351
 
  Angular difference between Flight and Ground position is 8.644382 arcmin
 
  Partial Coding Fraction: 0.3476562    [ including projection effects ]

  Duration
     T90: 50.9359998703003 +/- 82.6100936113296
        Measured from: 12.8200001716614
                   to: 63.7560000419617     [s; relative to TRIGTIME]
     T50: 31.1599998474121 +/- 98.4766456468749
        Measured from: 18.0800001621246
                   to: 49.2400000095367     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 45.1360000371933     
                   to: 46.1360000371933     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 11.8320000171661     
                   to: 143.824000000954     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     6.279480   0.638331  -0.120200   0.114178
           0.143734   0.131973   0.111433   0.094240 [error]
 Peak      0.069395   0.035902   0.016080   0.009407
           0.012843   0.011884   0.010442   0.008081 [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 2.71e-06 3.61e-07 2.11e-08 1.31e-09 3.10e-06 3.10e-06   erg/cm2
              Error 2.77e-07 6.95e-08 1.03e-08 1.11e-09 2.75e-07 2.75e-07   erg/cm2
Peak flux Power-law 1.06e+00 3.16e-01 5.12e-02 9.54e-03 1.44e+00 1.44e+00   ph/cm2/s
              Error 2.95e-01 1.43e-01 5.39e-02 2.13e-02 3.61e-01 3.63e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.69e-06 3.14e-07 3.90e-09 2.76e-12 3.01e-06 3.01e-06   erg/cm2
              Error 2.88e-07 9.03e-08 1.35e-08 9.81e-10 2.97e-07 2.97e-07   erg/cm2
Peak flux Cutoff-PL 1.08e+00 3.01e-01 4.56e-02 7.85e-03 1.44e+00 1.44e+00   ph/cm2/s
              Error 2.96e-01 -------- -------- -------- 3.63e-01 3.64e-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    6.092    0.426    -      -           1.74e-04 6.88e-05   61.660 57
CPL   1.000    0.000      50.0    0.0      3.33e-03 0.00e+00  365.280 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    3.625    0.958    -      -           3.21e-03 2.59e-03   65.810 57
CPL   1.000    0.000      50.0    0.0      2.17e-02 0.00e+00   84.020 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  131.992   11.832  143.824
T90    50.936   12.820   63.756
T50    31.160   18.080   49.240
Peak    1.000   45.136   46.136
  • 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
      244.5626 -15.5791 0.0789   46.8  -19.3       1.1248     2.4  TRIG_01218081       
    ------------------------------------------
     
    Foreground time interval of the image:
     11.832 103.001 (delta_t =  91.169 [sec])
    Background time interval of the image:
    -15.499  11.832 (delta_t =  27.331 [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 96.000000
    

    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 96.000000
    

    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 96.000000
    

    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   11.832 sec. to  143.824 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 6.09181     ( -0.418288   0.432715 )
    Norm@50keV  : 1.73890E-04    ( -5.8303e-05   7.93486e-05 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          61.66 using 59 PHA bins.
    # Reduced chi-squared =          1.082 for     57 degrees of freedom 
    # Null hypothesis probability =   3.130157e-01
     
    Photon flux (15-150 keV)    in 132 sec: 0.784834 ( -0.0755339  0.0761781 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.0976e-06 ( -2.74412e-07  2.75793e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   11.832 sec. to  143.824 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.00000     (     )
    Epeak [keV] : 50.0000      (   )
    Norm@50keV  : 3.32709E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         365.28 using 59 PHA bins.
    # Reduced chi-squared =         6.5229 for     56 degrees of freedom 
    # Null hypothesis probability =   5.953264e-47
     
    Photon flux (15-150 keV)    in 132 sec: 0.767078 ( -0.081444  0.080326 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.00992e-06 ( -2.9832e-07  2.94994e-07 ) ergs/cm2
     
    
    Band function
    Time interval is from   11.832 sec. to  143.824 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.61313   (     )
    beta        : -7.42767    (     )
    Epeak [keV] : 8.41900      (   )
    Norm@50keV   : 9.83889E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         227.04 using 59 PHA bins.
    # Reduced chi-squared =         4.1279 for     55 degrees of freedom 
    # Null hypothesis probability =   8.986420e-23
     
    Photon flux (15-150 keV)    in 132 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]    : 2.61339  (-0.202346  0.229769)
    R^2/D10^2   : 264.222  (-127.859   246.296)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          64.19 using 59 PHA bins.
    # Reduced chi-squared =          1.126 for     57 degrees of freedom 
    # Null hypothesis probability =   2.391930e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.625e-06   5.584e-07
    25- 50  2.301e-07   5.623e-08
    50-150  1.112e-10   7.937e-11
    15-150  2.855e-06   6.745e-07
    
    Thermal bremsstrahlung (OTTB)
    XSPEC12>exit
     XSPEC: quit
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 4.60343       (-0.516065      0.618377)
    Norm        : 236.555       (-98.2074     172.689)
    ------------------------------------------------------------
     Reduced chi-squared = 
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.666e-06   5.003e-07
    25- 50  2.777e-07   6.105e-08
    50-150  9.330e-10   6.328e-10
    15-150  2.944e-06   4.937e-07
    
    Double BB
    XSPEC12>exit
     XSPEC: quit
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 3.64420        (-0.202346      0.22977)
    R1^2/D10^2  : 14.2779        (-127.84      246.315)
    kT2 [keV]   : 1.85805        (-1.73341      0.768395)
    R2^2/D10^2  : 2646.64    (-2281.75   -2615.75)
    ------------------------------------------------------------
     Reduced chi-squared = 
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  0.000e+00   0.000e+00
    25- 50  0.000e+00   0.000e+00
    50-150  0.000e+00   0.000e+00
    15-150  0.000e+00   0.000e+00
    

    Peak spectrum fit

    Power-law model
    Time interval is from   45.136 sec. to   46.136 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 3.62504     ( -0.815181   1.10116 )
    Norm@50keV  : 3.20917E-03    ( -0.00214265   0.00303043 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          65.81 using 59 PHA bins.
    # Reduced chi-squared =          1.155 for     57 degrees of freedom 
    # Null hypothesis probability =   1.982287e-01
     
    Photon flux (15-150 keV)    in 1 sec: 1.43805 ( -0.361042  0.361767 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.46276e-08 ( -1.6672e-08  1.88763e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   45.136 sec. to   46.136 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.00000     (     )
    Epeak [keV] : 50.0000      (   )
    Norm@50keV  : 2.16646E-02    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          84.02 using 59 PHA bins.
    # Reduced chi-squared =          1.500 for     56 degrees of freedom 
    # Null hypothesis probability =   9.063967e-03
     
    Photon flux (15-150 keV)    in 1 sec: 1.43570 ( -0.36161  0.36495 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 5.41882e-08 ( -1.84078e-08  1.93095e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   45.136 sec. to   46.136 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -6.47951   ( 11.2148   6.47951 )
    beta        : -3.62506    ( -1.09821   0.814687 )
    Epeak [keV] : 39.9259      ( -39.9259 -39.9259 )
    Norm@50keV   : 0.436163    ( -0.291207   0.411887 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          65.81 using 59 PHA bins.
    # Reduced chi-squared =          1.197 for     55 degrees of freedom 
    # Null hypothesis probability =   1.508531e-01
     
    Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
     
    
    Single BB
     XSPEC: quit
     
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 4.17020  (-1.01615  1.18645)
    R^2/D10^2   : 29.5305  (-29.5305   106.949)
    (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  3.275e-08   1.877e-08
    25- 50  1.329e-08   8.555e-09
    50-150  2.068e-10   1.999e-10
    15-150  4.625e-08   2.711e-08
    
    Thermal bremsstrahlung (OTTB)
    XSPEC12>exit
     XSPEC: quit
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 10.1709       (-3.84276      7.28222)
    Norm        : 47.2215       (-27.9744     94.395)
    ------------------------------------------------------------
     Reduced chi-squared = 
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.271e-08   1.859e-08
    25- 50  1.440e-08   9.358e-09
    50-150  1.034e-09   1.005e-09
    15-150  4.814e-08   2.873e-08
    
    Double BB
    XSPEC12>exit
     XSPEC: quit
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 3.97710        (-1.03321      1.13267)
    R1^2/D10^2  : 36.7069        (-18.3528      88.7718)
    kT2 [keV]   : 39.2701        (-25.2274      -39.3313)
    R2^2/D10^2  : 1.62495E-03    (-0.00160832   0.0281832)
    ------------------------------------------------------------
     Reduced chi-squared = 
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.279e-08   1.908e-08
    25- 50  1.375e-08   8.275e-09
    50-150  2.090e-08   1.258e-08
    15-150  6.745e-08   3.651e-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: 6.04011     ( -0.461467   0.482606 )
    Norm@50keV  : 1.87435E-04    ( -6.97971e-05   9.87444e-05 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.12 using 59 PHA bins.
    # Reduced chi-squared =          1.037 for     57 degrees of freedom 
    # Null hypothesis probability =   3.978948e-01
     
    Photon flux (15-150 keV)    in 91.17 sec: 0.803067 ( -0.0811543  0.0816201 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.19464e-06 ( -2.07369e-07  2.07818e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.00000     (     )
    Epeak [keV] : 50.0000      (   )
    Norm@50keV  : 3.81799E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         311.57 using 59 PHA bins.
    # Reduced chi-squared =         5.5638 for     56 degrees of freedom 
    # Null hypothesis probability =   3.855818e-37
     
    Photon flux (15-150 keV)    in 91.17 sec: 0.787531 ( -0.086532  0.085253 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.13485e-06 ( -2.16155e-07  2.19984e-07 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -8.70031   ( 5.51763   8.70031 )
    beta        : -6.10549    ( -0.433153   0.519137 )
    Epeak [keV] : 361.592      ( -361.592 -361.592 )
    Norm@50keV   : 2.39090E-02    ( -0.00847336   0.0145649 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.18 using 59 PHA bins.
    # Reduced chi-squared =          1.076 for     55 degrees of freedom 
    # Null hypothesis probability =   3.256525e-01
     
    Photon flux (15-150 keV)    in 91.17 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)  = 3.61e-07
    S(50-100 keV) = 2.11e-08
    

    T90 vs. Hardness ratio plot

    T90                                   = 50.9359998703003 sec.
    Hardness ratio (energy fluence ratio) = 0.0584488
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 0.101653
    Count Ratio (50-100 keV) / (15-25 keV) = -0.0191417
    

    Mask shadow pattern

    IMX = 1.004195257953159E+00, IMY = 3.508252309884719E-01
    

    TIME vs. PHA plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 96.000000
    

    TIME vs. DetID plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 96.000000
    

    100 us light curve (15-350 keV)

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 96.000000
    

    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:
    -15.499400 11.832000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    244.8617 -15.6127    4.3  47.0  -19.6   0.3720   2.7    7.0	Sco X-1                       
    254.3862  35.2554    4.6  34.1 -101.8   0.3284   2.5    6.3	Her X-1                       
    188.4231   8.4547    2.4  31.5   84.8   0.5693   4.8 ------	UNKNOWN                       
    

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

    Time interval of the image:
    11.832000 103.000590
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    244.8701 -15.6723    6.2  47.0  -19.5  -0.8615  -1.9    6.6	Sco X-1                       
    254.3340  35.2762    8.6  34.1 -101.8  -0.5871  -1.3    7.2	Her X-1                       
    177.6924   9.0367    2.2  40.7   94.1   4.5106   5.1 ------	UNKNOWN                       
    212.3122  48.5081    2.2  25.8 -170.5   1.2809   5.3 ------	UNKNOWN                       
    259.2263 -11.4589    2.4  53.4  -36.6   5.0972   4.9 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    199.600600 243.113800
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    244.8102 -15.7094    0.8   0.1  -77.1   1.4880  14.6   10.6	Sco X-1                       
    254.5622  35.2935    6.3  51.8 -178.9   0.5440   1.9    5.9	Her X-1                       
    256.0105 -37.8690   11.0  24.3  -31.2   0.1160   1.1    1.9	4U 1700-377                   
    256.2674 -36.5182   12.2  23.3  -33.3   0.1062   0.9    9.9	GX 349+2                      
    262.8899 -24.5997    6.5  19.2  -68.6   0.2285   1.8   10.9	GX 1+4                        
    264.8509 -44.4104    7.2  33.4  -35.7  -0.2313  -1.6    5.2	4U 1735-44                    
    268.5107  -1.4864    3.8  27.4 -128.0  -0.4009  -3.0    8.8	SW J1753.5-0127               
    270.4470 -25.1324    7.2  25.9  -73.5   0.2449   1.7    9.4	GX 5-1                        
    270.3657 -25.6325   14.3  25.9  -72.4  -0.1395  -0.9    7.5	GRS 1758-258                  
    274.1527 -14.1753    5.7  28.5  -98.2  -0.3379  -2.0   11.9	GX 17+2                       
    275.8687 -30.2410    7.1  32.0  -66.6   0.2870   1.6    8.1	H1820-303                     
    284.9559 -24.8116  292.1  38.7  -78.8  -0.0146  -0.0    7.9	HT1900.1-2455                 
    262.8114 -33.8781    5.8  24.5  -47.7   0.2454   2.0    9.2	GX 354-0                      
    213.3543   0.7796    2.3  35.1  106.0   1.1122   5.1 ------	UNKNOWN                       
    228.2648 -41.9587    2.4  29.9   15.8   0.6135   4.7 ------	UNKNOWN                       
    259.0495 -22.2987    2.8  15.1  -70.9   0.4747   4.1 ------	UNKNOWN                       
    
    Plot creation:
    Fri Mar  1 14:49:45 EST 2024