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(2020 HL)
Classification: Apollo [NEO]          SPK-ID: 54016550
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2458960.5 (2020-Apr-21.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4036965259238703 0.0018016  
a 1.521565698961727 0.0039983 au
q .9073149123259523 0.00035706 au
i 5.014517214450485 0.020404 deg
node 18.82414703758549 0.0019318 deg
peri 255.4255000920177 0.008059 deg
M 331.376509858287 0.12848 deg
tp 2459015.007288389758
(2020-Jun-14.50728839)
0.029812 TDB
period 685.5426687368508
1.88
2.7022
0.007398
d
yr
n .5251314271412446 0.0020699 deg/d
Q 2.135816485597501 0.0056125 au
  Orbit Determination Parameters
   # obs. used (total)      30  
   data-arc span      10 days  
   first obs. used      2020-04-16  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .68589  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-22 06:33:15  

Additional Information
 Earth MOID = .0372212 au 
 Jupiter MOID = 3.00874 au 
 T_jup = 4.405 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.048   .4213 5 autocmod 2.8

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2017-Jan-01 22:14 4_09:54 Mars 0.0896479895864866 0.0213668409275335 0.326406593293498 7.76292546300371 7.76251407490507 2457755.426238595 6354.15862426017 11900215.0363406 114.800917584118 13.7913874192131 29059.0748278016 T 5 CATAB v2.0f-lin.ifort 2020-Aug-22 06:33:17 2020-Aug-22 06:33
2018-Sep-12 21:57 7_02:08 Earth 0.363995914008051 0.226476590232537 0.503691215105299 20.1000814426403 20.0997172577147 2458374.414275024 10208.3375272549 7053032.70755227 487.828485941587 10.6159452172348 18350.9047336212 T 5 CATAB v2.0f-lin.ifort 2020-Aug-22 06:33:17 2020-Aug-22 06:33
2020-May-05 15:25 00:01 Earth 0.0429690723767161 0.0424517426871733 0.0434863841032075 9.16185059676157 9.15507989511516 2458975.142181432 1.29087070105382 25759.4367530684 38.377025779276 -0.331367458457769 380.055891742 T 5 CATAB v2.0f-lin.ifort 2020-Aug-22 06:33:17 2020-Aug-22 06:33
2020-Sep-13 22:13 15:10 Earth 0.451637319510227 0.446466999954511 0.456807944963248 4.36266429104594 4.3613117885815 2459106.425492682 909.924586243543 258496.209778682 456.685777819106 3.60387858826804 17396.8924053048 T 5 CATAB v2.0f-lin.ifort 2020-Aug-22 06:33:17 2020-Aug-22 06:33
2181-May-12 21:20 4_11:25 Mars 0.0543510961372175 0.0538563543299762 0.156990127481271 9.39042771287536 9.38986676116376 2517786.388791270 6445.44293067161 6994275.63066558 797.55535339101 -82.390348761877 10111.5700647322 T 5 CATAB v2.0f-lin.ifort 2020-Aug-22 06:33:17 2020-Aug-22 06:33
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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