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(2020 WH)
Classification: Apollo [NEO]          SPK-ID: 54088807
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 2459170.5 (2020-Nov-17.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2618477484358001 0.00066639  
a 1.121363488057719 0.0008138 au
q .8277369835316902 0.00014715 au
i 19.82041986861435 0.044175 deg
node 233.5147941904915 0.0022483 deg
peri 257.9053402438026 0.050894 deg
M 310.2254230675444 0.10731 deg
tp 2459230.468490940927
(2021-Jan-15.96849094)
0.064006 TDB
period 433.7285833293904
1.19
0.47215
0.001293
d
yr
n .8300121639126604 0.00090353 deg/d
Q 1.414989992583748 0.0010269 au
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      1 day  
   first obs. used      2020-11-16  
   last obs. used      2020-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .34841  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-17 13:42:03  

Additional Information
 Earth MOID = .000919585 au 
 Jupiter MOID = 3.74005 au 
 T_jup = 5.483 
[ 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 25.191   .34926 1 autocmod 2.8

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