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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


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Orbital Elements at Epoch 2458960.5 (2020-Apr-21.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4020661392029341 0.001862  
a 1.517956884540161 0.0041087 au
q .9076378204965845 0.00036969 au
i 4.995785495069513 0.021109 deg
node 18.82574903495935 0.0019925 deg
peri 255.4180422165251 0.0083715 deg
M 331.2603617487887 0.13293 deg
tp 2459015.033877434896
(2020-Jun-14.53387743)
0.030832 TDB
period 683.1051840304609
1.87
2.7734
0.007593
d
yr
n .5270052232306686 0.0021397 deg/d
Q 2.128275948583738 0.0057606 au
  Orbit Determination Parameters
   # obs. used (total)      28  
   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      .48841  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-26 06:39:35  

Additional Information
 Earth MOID = .0370841 au 
 Jupiter MOID = 3.01584 au 
 T_jup = 4.413 
[ 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 25.005   .41085 4 autocmod 2.8

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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