batgrbproduct analysis for trigger=1218701

batgrbproduct Analysis for Trigger=1218701

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Tue Mar  5 19:47:05 EST 2024
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1218701/GCN5_download_cron
======================================================================

  Trigger: 01218701      Segment: 000

  BAT Trigger Time: 731304856   [s; MET]
      Trigger Stop: 731304920   [s; MET]
               UTC: 2024-03-05T04:13:42.970820    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 229.70518842631   Dec: -57.3426295141823  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.24
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    9.24

  Flight Position:   [ source = BAT ]
    RA: 229.70518842631   Dec: -57.3426295141823  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 229.71107719231   Dec: -57.3288453115318  [deg; J2000]  
        { 15h 18m 50.7s , -57d 19' 43.8" }
         +/- 2.5114223177208 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.26791565300446 [arcmin] (formal 1-sigma fit error)
    SNR: 8.1621477573772
 
  Angular difference between Flight and Ground position is 0.848752 arcmin
 
  Partial Coding Fraction: 0.8203125    [ including projection effects ]

  Duration
     T90: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]
     T50: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 64 second)
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.310556   0.260370   0.034908   0.068209
           0.042668   0.041534   0.035137   0.033467 [error]
 Peak      0.310556   0.260370   0.034908   0.068209
           0.042668   0.041534   0.035137   0.033467 [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 1.04e-07 9.97e-08 6.68e-08 6.97e-08 2.99e-07 3.40e-07   erg/cm2
              Error 2.14e-08 2.12e-08 2.86e-08 5.61e-08 6.80e-08 1.00e-07   erg/cm2
Peak flux Power-law 5.91e-02 3.17e-02 1.06e-02 4.60e-03 1.04e-01 1.06e-01   ph/cm2/s
              Error 1.24e-02 6.46e-03 4.39e-03 3.45e-03 1.81e-02 1.87e-02   ph/cm2/s
 
Fluence   Cutoff-PL 1.03e-07 1.11e-07 4.26e-08 4.48e-09 2.60e-07 2.61e-07   erg/cm2
              Error 2.27e-08 2.86e-08 3.98e-08 6.23e-08 7.66e-08 1.12e-07   erg/cm2
Peak flux Cutoff-PL 5.78e-02 3.54e-02 7.19e-03 4.06e-04 1.01e-01 1.01e-01   ph/cm2/s
              Error 1.33e-02 9.11e-03 -------- 3.97e-03 1.77e-02 1.92e-02   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    2.579    0.403    -      -           5.04e-04 1.59e-04   56.260 57
CPL   1.169    1.851      18.4    0.0      4.60e-03 0.00e+00   55.390 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.579    0.403    -      -           5.04e-04 1.59e-04   56.260 57
CPL   1.169    1.851      18.4    0.0      4.60e-03 0.00e+00   55.390 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   64.000    0.000   64.000
T90    64.000    0.000   64.000
T50    64.000    0.000   64.000
Peak   64.000    0.000   64.000
  • 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
      229.7111 -57.3288 0.0235   29.3 -157.3       0.8057     8.2  TRIG_01218701       
    ------------------------------------------
     
    Foreground time interval of the image:
      0.000  32.000 (delta_t =  32.000 [sec])
     32.000  53.790 (delta_t =  21.790 [sec])
     55.000  56.190 (delta_t =   1.190 [sec])
     61.000  64.000 (delta_t =   3.000 [sec])
    Background time interval of the image:
    

    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

    8 ms binning

    From T100_start-3 s to T100_start+3 s

    2 ms binning

    From T100_start-1 s to T100_start+1 s

    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
    Multiple GTIs in the spectrum
    tstart tstop
    0.000000 32.000000
    32.000000 53.790000
    55.000000 56.190000
    61.000000 64.000000
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.57936     ( -0.372339   0.433218 )
    Norm@50keV  : 5.03589E-04    ( -0.000158375   0.000160356 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          56.26 using 59 PHA bins.
    # Reduced chi-squared =         0.9870 for     57 degrees of freedom 
    # Null hypothesis probability =   5.027553e-01
     
    Photon flux (15-150 keV)    in 57.98 sec: 0.103941 ( -0.0180529  0.0180625 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.98653e-07 ( -6.58119e-08  7.01726e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Multiple GTIs in the spectrum
    tstart tstop
    0.000000 32.000000
    32.000000 53.790000
    55.000000 56.190000
    61.000000 64.000000
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.16899     ( -2.87207   0.829449 )
    Epeak [keV] : 18.4398      (   )
    Norm@50keV  : 4.60253E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          55.39 using 59 PHA bins.
    # Reduced chi-squared =         0.9891 for     56 degrees of freedom 
    # Null hypothesis probability =   4.979515e-01
     
    Photon flux (15-150 keV)    in 57.98 sec: 0.100737 ( -0.0179099  0.017508 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.60095e-07 ( -5.77904e-08  9.55047e-08 ) ergs/cm2
     
    
    Band function
    Multiple GTIs in the spectrum
    tstart tstop
    0.000000 32.000000
    32.000000 53.790000
    55.000000 56.190000
    61.000000 64.000000
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.32221   ( 1.32249   1.32249 )
    beta        : -3.50903    ( 3.52489   1.22987 )
    Epeak [keV] : 17.0656      ( -16.9988 9.17675 )
    Norm@50keV   : 3.57532E-03    ( -0.0017891   312.635 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          55.11 using 59 PHA bins.
    # Reduced chi-squared =          1.002 for     55 degrees of freedom 
    # Null hypothesis probability =   4.704750e-01
     
    Photon flux (15-150 keV)    in 57.98 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]    : 6.72541  (-1.20427  1.36594)
    R^2/D10^2   : 0.234819  (-0.12731   0.309771)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          58.07 using 59 PHA bins.
    # Reduced chi-squared =          1.019 for     57 degrees of freedom 
    # Null hypothesis probability =   4.354932e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  9.472e-08   2.977e-08
    25- 50  1.199e-07   4.223e-08
    50-150  1.715e-08   1.024e-08
    15-150  2.318e-07   6.126e-08
    
    Thermal bremsstrahlung (OTTB)
    XSPEC12>exit
     XSPEC: quit
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 26.4657       (-8.65956      14.8996)
    Norm        : 0.937044       (-0.310276     0.509087)
    ------------------------------------------------------------
     Reduced chi-squared = 
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.031e-07   2.421e-08
    25- 50  1.095e-07   3.027e-08
    50-150  5.056e-08   3.166e-08
    15-150  2.632e-07   7.300e-08
    
    Double BB
    XSPEC12>exit
     XSPEC: quit
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 3.16688        (-2.9477      -3.19797)
    R1^2/D10^2  : 3.24141        (-3.0722      -3.18513)
    kT2 [keV]   : 8.60992        (-2.3141      -8.63544)
    R2^2/D10^2  : 6.50741E-02    (-0.0637377   0.227688)
    ------------------------------------------------------------
     Reduced chi-squared = 
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.019e-07   5.120e-08
    25- 50  1.138e-07   6.227e-08
    50-150  3.501e-08   2.399e-08
    15-150  2.507e-07   1.303e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from   61.000 sec. to   64.000 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.57936     ( -0.372339   0.433218 )
    Norm@50keV  : 5.03589E-04    ( -0.000158375   0.000160356 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          56.26 using 59 PHA bins.
    # Reduced chi-squared =         0.9870 for     57 degrees of freedom 
    # Null hypothesis probability =   5.027553e-01
     
    Photon flux (15-150 keV)    in 57.98 sec: 0.103941 ( -0.0180529  0.0180625 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.98653e-07 ( -6.58119e-08  7.01726e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   61.000 sec. to   64.000 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.16899     ( -2.87207   0.829449 )
    Epeak [keV] : 18.4398      (   )
    Norm@50keV  : 4.60253E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          55.39 using 59 PHA bins.
    # Reduced chi-squared =         0.9891 for     56 degrees of freedom 
    # Null hypothesis probability =   4.979515e-01
     
    Photon flux (15-150 keV)    in 57.98 sec: 0.100737 ( -0.0179099  0.017508 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.60095e-07 ( -5.77904e-08  9.55047e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   61.000 sec. to   64.000 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.32221   ( 1.32249   1.32249 )
    beta        : -3.50903    ( 3.52489   1.22987 )
    Epeak [keV] : 17.0656      ( -16.9988 9.17675 )
    Norm@50keV   : 3.57532E-03    ( -0.0017891   312.637 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          55.11 using 59 PHA bins.
    # Reduced chi-squared =          1.002 for     55 degrees of freedom 
    # Null hypothesis probability =   4.704750e-01
     
    Photon flux (15-150 keV)    in 57.98 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]    : 6.72541  (-1.20427  1.36594)
    R^2/D10^2   : 0.234819  (-0.12731   0.309771)
    (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  9.472e-08   2.850e-08
    25- 50  1.199e-07   4.236e-08
    50-150  1.715e-08   1.088e-08
    15-150  2.318e-07   6.444e-08
    
    Thermal bremsstrahlung (OTTB)
    XSPEC12>exit
     XSPEC: quit
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 26.4657       (-8.65956      14.8996)
    Norm        : 0.937044       (-0.310276     0.509087)
    ------------------------------------------------------------
     Reduced chi-squared = 
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.031e-07   2.438e-08
    25- 50  1.095e-07   2.951e-08
    50-150  5.056e-08   3.040e-08
    15-150  2.632e-07   7.627e-08
    
    Double BB
    XSPEC12>exit
     XSPEC: quit
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 3.16688        (-3.19699      -3.19797)
    R1^2/D10^2  : 3.24141        (-3.0722      -3.18513)
    kT2 [keV]   : 8.60992        (-2.3141      -8.63544)
    R2^2/D10^2  : 6.50741E-02    (-0.0637377   0.227688)
    ------------------------------------------------------------
     Reduced chi-squared = 
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.019e-07   5.210e-08
    25- 50  1.138e-07   6.181e-08
    50-150  3.501e-08   2.498e-08
    15-150  2.507e-07   1.325e-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: 2.57936     ( -0.372339   0.433218 )
    Norm@50keV  : 5.03589E-04    ( -0.000158375   0.000160356 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          56.26 using 59 PHA bins.
    # Reduced chi-squared =         0.9870 for     57 degrees of freedom 
    # Null hypothesis probability =   5.027553e-01
     
    Photon flux (15-150 keV)    in 57.98 sec: 0.103941 ( -0.0180529  0.0180625 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.98653e-07 ( -6.58119e-08  7.01726e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.16899     ( -2.87207   0.829449 )
    Epeak [keV] : 18.4398      (   )
    Norm@50keV  : 4.60253E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          55.39 using 59 PHA bins.
    # Reduced chi-squared =         0.9891 for     56 degrees of freedom 
    # Null hypothesis probability =   4.979515e-01
     
    Photon flux (15-150 keV)    in 57.98 sec: 0.100737 ( -0.0179099  0.017507 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 2.60095e-07 ( -5.77904e-08  9.55047e-08 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.32221   ( 1.32249   1.32249 )
    beta        : -3.50903    ( 3.52489   1.22987 )
    Epeak [keV] : 17.0656      ( -16.9988 9.17675 )
    Norm@50keV   : 3.57532E-03    ( -0.0017891   312.608 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          55.11 using 59 PHA bins.
    # Reduced chi-squared =          1.002 for     55 degrees of freedom 
    # Null hypothesis probability =   4.704750e-01
     
    Photon flux (15-150 keV)    in 57.98 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)  = 9.97e-08
    S(50-100 keV) = 6.68e-08
    

    T90 vs. Hardness ratio plot

    T90                                   = 64 sec.
    Hardness ratio (energy fluence ratio) = 0.67001
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 0.8384
    Count Ratio (50-100 keV) / (15-25 keV) = 0.112405
    

    Mask shadow pattern

    IMX = -5.179702671674051E-01, IMY = 2.165537824673080E-01
    

    TIME vs. PHA plot around the trigger time

    TIME vs. DetID plot around the trigger time

    100 us light curve (15-350 keV)

    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:
     
    

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

    Time interval of the image:
    0.000000 32.000000
    32.000000 53.790000
    55.000000 56.190000
    61.000000 64.000000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.4826 -40.6858    6.9  29.8   34.0   0.1757   1.7    8.1	Vela X-1                      
    169.9905 -60.5000    3.6   1.5   90.1   0.2693   3.2   12.1	Cen X-3                       
    186.5789 -62.7990    1.1   7.6 -162.4   0.8068  10.2    2.7	GX 301-2                      
    255.9551 -37.8729   11.4  55.3 -158.8  -0.3712  -1.0    2.3	4U 1700-377                   
    256.5114 -36.4914    9.4  56.7 -159.3  -0.4874  -1.2    5.5	GX 349+2                      
    264.9087 -44.6209    3.7  53.6 -147.3   1.2329   3.1   12.5	4U 1735-44                    
    203.6859 -29.7765    2.4  38.9  144.1   0.7904   4.8 ------	UNKNOWN                       
     95.6489 -29.8467    2.4  56.8    2.4   2.2876   4.9 ------	UNKNOWN                       
    161.9623 -62.2822    2.2   3.9   -3.1   0.4330   5.3 ------	UNKNOWN                       
    229.7109 -57.3289    1.4  29.3 -157.3   0.8059   8.2 ------	UNKNOWN                       
    257.1731 -59.8169    2.6  39.1 -138.2   0.6071   4.4 ------	UNKNOWN                       
     65.4781 -65.9628    2.3  40.7  -48.4   0.8706   5.1 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    140.900620 148.400000
    151.000000 151.630000
    183.000000 190.230000
    191.000000 191.020000
    193.000000 199.110000
    200.000000 200.060000
    204.000000 214.043800
    216.000000 230.870000
    232.000000 243.052900
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    170.3966 -60.4947    5.9  29.7   33.1   0.3818   1.9    8.1	Cen X-3                       
    186.6727 -62.7709    1.0  21.7   32.1   1.7458  11.2    0.4	GX 301-2                      
    244.9374 -15.6429    1.4  43.3  176.1   2.2303   8.5    2.4	Sco X-1                       
    255.9110 -37.8044    2.6  26.0 -153.0   0.6453   4.5    4.3	4U 1700-377                   
    256.6127 -36.2951    0.0  27.6 -153.7   0.2876   1.8   11.5	GX 349+2                      
    263.1022 -24.7648    6.8  40.4 -155.1   0.3785   1.7    5.2	GX 1+4                        
    264.5403 -44.4481    5.1  25.1 -131.5   0.3584   2.3    8.7	4U 1735-44                    
    270.2338 -25.0684    2.5  43.3 -146.4   1.2439   4.6    2.8	GX 5-1                        
    270.1277 -25.5908    4.4  42.8 -146.2  -0.6782  -2.6   13.1	GRS 1758-258                  
    274.0597 -14.1424    9.7  54.6 -149.3   0.7479   1.2    7.1	GX 17+2                       
    276.0038 -30.3931    3.3  41.6 -135.8   0.9496   3.5    4.4	H1820-303                     
    262.8690 -33.8898    4.4  32.4 -147.7   0.4913   2.6    6.8	GX 354-0                      
    229.8457 -57.3753    1.9   0.1 -105.6   0.8711   6.2 ------	UNKNOWN                       
     35.5355 -66.9836    1.9  55.2  -32.3   4.6513   6.1 ------	UNKNOWN                       
    
    Plot creation:
    Tue Mar  5 19:49:01 EST 2024