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(2020 HT8)
Classification: Apollo [NEO]          SPK-ID: 54016819
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6216300410151027 0.00057318  
a 1.849771370077961 0.0025069 au
q .6998979174278352 0.00011172 au
i 20.38621476242504 0.015316 deg
node 216.6222585598014 0.00019998 deg
peri 281.7260985629485 0.0094748 deg
M 32.12306803811595 0.073151 deg
tp 2458918.504499019028
(2020-Mar-10.00449902)
0.020038 TDB
period 918.9153513644609
2.52
1.868
0.005114
d
yr
n .391766226851527 0.00079641 deg/d
Q 2.999644822728086 0.0040652 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 = .000583361 au 
 Jupiter MOID = 2.46642 au 
 T_jup = 3.689 
[ 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 28.317   .72532 1 autocmod 2.8

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