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(2020 HT8)
Classification: Apollo [NEO]          SPK-ID: 54016819
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6215909967964979 0.00057307  
a 1.850232217595805 0.0025087 au
q .7001445291554339 0.00011102 au
i 20.38067374719505 0.015299 deg
node 216.5837397626601 0.00020139 deg
peri 281.7839323911074 0.00951 deg
M 110.4289926409324 0.2324 deg
tp 2458918.519942369837
(2020-Mar-10.01994237)
0.019952 TDB
period 919.2587772391871
2.52
1.8696
0.005119
d
yr
n .391619866911893 0.00079648 deg/d
Q 3.000319906036176 0.004068 au
  Orbit Determination Parameters
   # obs. used (total)      18  
   data-arc span      2 days  
   first obs. used      2020-04-27  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .47977  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-29 05:12:34  

Additional Information
 Earth MOID = 5.59715E-5 au 
 Jupiter MOID = 2.46495 au 
 T_jup = 3.688 
[ 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 28.6   .72532 E2020-HM9 autocmod 2.8

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