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(2020 WB2)
Classification: Apollo [NEO]          SPK-ID: 54091651
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 2459175.5 (2020-Nov-22.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7134512631973858 0.00093456  
a 2.737066561789885 0.0082985 au
q .7843029658255659 0.00018004 au
i 4.091349844740553 0.0040186 deg
node 233.077015977925 0.0002209 deg
peri 122.3969671069092 0.0034469 deg
M 9.320503283088483 0.045585 deg
tp 2459132.678356814323
(2020-Oct-10.17835681)
0.014687 TDB
period 1653.965572311399
4.53
7.522
0.02059
d
yr
n .2176587022285499 0.00098988 deg/d
Q 4.689830157754204 0.014219 au
  Orbit Determination Parameters
   # obs. used (total)      124  
   data-arc span      8 days  
   first obs. used      2020-11-19  
   last obs. used      2020-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .28684  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-27 05:18:57  

Additional Information
 Earth MOID = .00258761 au 
 Jupiter MOID = .867424 au 
 T_jup = 2.915 
[ 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 23.413   .33397 8 autocmod 2.8

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