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(2018 WN)
Classification: Apollo [NEO]          SPK-ID: 3836277
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2683973699465823 0.0001649  
a 1.358689490621956 0.00031428 au
q .9940208047649616 5.8813e-06 au
i 1.879114531401839 0.0010744 deg
node 218.0125701318541 0.0012493 deg
peri 235.436497483556 0.00075715 deg
M 213.588598060964 0.19846 deg
tp 2459631.761655921234
(2022-Feb-21.26165592)
0.40052 TDB
period 578.467216418772
1.58
0.20071
0.0005495
d
yr
n .6223343169362667 0.00021593 deg/d
Q 1.723358176478951 0.00039863 au
  Orbit Determination Parameters
   # obs. used (total)      24  
   data-arc span      61 days  
   first obs. used      2018-11-17  
   last obs. used      2019-01-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .40086  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:55:14  

Additional Information
 Earth MOID = .0265911 au 
 Jupiter MOID = 3.45366 au 
 T_jup = 4.814 
[ 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 26.7   .45413 E2018W86 autocmod 2.6q

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