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(2018 UC2)
Classification: Apollo [NEO, PHA]          SPK-ID: 3698516
[ 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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4104283341577069 6.5128e-08  
a 1.576500517166949 3.1512e-08 au
q .9294600361073549 9.1528e-08 au
i 31.31558984625742 1.3173e-05 deg
node 209.6827093273549 1.6828e-06 deg
peri 134.6593148188659 2.0734e-05 deg
M 309.6319917151675 8.6536e-06 deg
tp 2459101.656054143543
(2020-Sep-09.15605414)		 1.9659e-05 TDB
period 723.0021740335857
1.98		 2.1677e-05
5.935e-08		 d
yr
n .497923813965291 1.4929e-08 deg/d
Q 2.223540998226543 4.4445e-08 au
   Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      2393 days (6.55 yr)  
   first obs. used      2014-04-23  
   last obs. used      2020-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44042  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 05:26:59  

Additional Information
 Earth MOID = .020979 au 
 Jupiter MOID = 3.43084 au 
 T_jup = 4.158 
[ 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 22.0   .4867 E2018X27 autocmod 2.6q

[ show close-approach data ]
Alternate Designations
 2018 UC2 = 2014 HF197 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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