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(2020 WN)
Classification: Apollo [NEO]          SPK-ID: 54088812
[ 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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4202677084325946 0.00033952  
a 1.416017987721009 0.00067644 au
q .8209113529221664 8.8637e-05 au
i 6.278129697904848 0.0043341 deg
node 62.37716944081855 0.00053509 deg
peri 64.06126109134262 0.0013839 deg
M 346.5884700552969 0.015724 deg
tp 2459223.428592987703
(2021-Jan-08.92859299)		 0.010453 TDB
period 615.4624796429731
1.69		 0.44101
0.001207		 d
yr
n .5849259896538849 0.00041913 deg/d
Q 2.011124622519851 0.00096072 au
   Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      6 days  
   first obs. used      2020-11-16  
   last obs. used      2020-11-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .4451  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-26 05:21:13  

Additional Information
 Earth MOID = .000779323 au 
 Jupiter MOID = 3.07695 au 
 T_jup = 4.616 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459171.5 (2020-Nov-18.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4219770659563002 0.00033734  
q .8220741717482388 9.0694e-05 au
tp 2459223.203171449714
(2021-Jan-08.70317145)		 0.0098696 TDB
node 62.38864282057735 0.00050977 deg
peri 63.70486174316972 0.00061469 deg
i 6.263360304947149 0.0043514 deg
   Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      6 days  
   first obs. used      2020-11-16  
   last obs. used      2020-11-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .4451  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-26 05:21:13  

Additional Information
 Jupiter MOID = 3.07695 au 
 T_jup = 4.616 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.138010317070324E-7 -3.059050195200349E-8 -3.329001278836221E-6 1.714928493906463E-7 -1.720442301812142E-7 1.467871919398073E-6
q -3.059050195200349E-8 8.225358857419915E-9 8.946104040791864E-7 -4.605291811718624E-8 4.571378444918756E-8 -3.946191965831187E-7
tp -3.329001278836221E-6 8.946104040791864E-7 9.740818189272926E-5 -5.021220858629526E-6 5.087382160551446E-6 -4.293476696655932E-5
node 1.714928493906463E-7 -4.605291811718624E-8 -5.021220858629526E-6 2.598618286786615E-7 -2.697438210244177E-7 2.210633076564811E-6
peri -1.720442301812142E-7 4.571378444918756E-8 5.087382160551446E-6 -2.697438210244177E-7 3.778382175277548E-7 -2.208663130833731E-6
i 1.467871919398073E-6 -3.946191965831187E-7 -4.293476696655932E-5 2.210633076564811E-6 -2.208663130833731E-6 1.893504013772902E-5

[ 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 27.4   .91282 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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