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(2020 UB4)
Classification: Amor [NEO]          SPK-ID: 54076000
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 2459146.5 (2020-Oct-24.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4895066839093181 0.00087092  
a 1.993933599561085 0.0034745 au
q 1.017889775304568 3.7152e-05 au
i 8.467422307006352 0.010848 deg
node 214.4281876954824 0.001014 deg
peri 179.8144847477377 0.0039474 deg
M 359.0021015852774 0.0037723 deg
tp 2459149.350678867909
(2020-Oct-26.85067887)
0.0033339 TDB
period 1028.405674672294
2.82
2.688
0.007359
d
yr
n .350056411459141 0.00091498 deg/d
Q 2.969977423817601 0.0051753 au
  Orbit Determination Parameters
   # obs. used (total)      33  
   data-arc span      8 days  
   first obs. used      2020-10-22  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .37007  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-30 07:14:59  

Additional Information
 Earth MOID = .0241465 au 
 Jupiter MOID = 2.47236 au 
 T_jup = 3.677 
[ 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 26.386   .20838 4 autocmod 2.8

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