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(2020 WS4)
Classification: Apollo [NEO]          SPK-ID: 54095169
[ 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.


Orbital Elements at Epoch 2459178.5 (2020-Nov-25.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5590310562952286 0.0015872  
a 1.873087624897407 0.0060606 au
q .8259734714174886 0.00030101 au
i .5658449950722469 0.0011199 deg
node 123.1308180404381 0.07535 deg
peri 1.292786500146915 0.074047 deg
M 343.4231376052267 0.092031 deg
tp 2459221.615695922422
(2021-Jan-07.11569592)		 0.030127 TDB
period 936.3442949834651
2.56		 4.5445
0.01244		 d
yr
n .3844739610512148 0.001866 deg/d
Q 2.920201778377325 0.0094487 au
   Orbit Determination Parameters
   # obs. used (total)      30  
   data-arc span      2 days  
   first obs. used      2020-11-24  
   last obs. used      2020-11-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .4895  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:18:49  

Additional Information
 Earth MOID = .00798941 au 
 Jupiter MOID = 2.17427 au 
 T_jup = 3.773 
[ 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 26.6   .33362 E2021-CC3 autocmod 2.8

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