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(2020 UN3)
Classification: Apollo [NEO]          SPK-ID: 54075985
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1937968809857276 8.81e-05  
a 1.039677533219212 5.4687e-05 au
q .8381912700503934 4.7508e-05 au
i 10.65633626451017 0.0054965 deg
node 41.6347975295254 0.00010757 deg
peri 99.28930772916921 0.0035738 deg
M 323.1841843171582 0.01062 deg
tp 2459240.098464162020
(2021-Jan-25.59846416)
0.0082981 TDB
period 387.209867116183
1.06
0.030551
8.364e-05
d
yr
n .9297283736108443 7.3355e-05 deg/d
Q 1.24116379638803 6.5285e-05 au
  Orbit Determination Parameters
   # obs. used (total)      198  
   data-arc span      33 days  
   first obs. used      2020-10-20  
   last obs. used      2020-11-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .37  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:13:26  

Additional Information
 Earth MOID = .028567 au 
 Jupiter MOID = 3.77514 au 
 T_jup = 5.867 
[ 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 24.4   .52044 MPO600173 autocmod 2.8

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