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(2020 UJ4)
Classification: Apollo [NEO]          SPK-ID: 54076018
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .476047259743095 0.00052536  
a 1.889497593704251 0.0018977 au
q .9900074419301708 1.7548e-06 au
i 7.295283809448288 0.0059822 deg
node 27.60521400757021 0.00062233 deg
peri 23.56076294787669 0.00060364 deg
M 298.0798479758745 0.094669 deg
tp 2459163.672683088690
(2020-Nov-10.17268309)
0.0036619 TDB
period 948.6760608895337
2.60
1.4292
0.003913
d
yr
n .3794762141066816 0.00057168 deg/d
Q 2.788987745478332 0.0028011 au
  Orbit Determination Parameters
   # obs. used (total)      34  
   data-arc span      4 days  
   first obs. used      2020-10-23  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .38529  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-28 06:42:16  

Additional Information
 Earth MOID = .0173244 au 
 Jupiter MOID = 2.62136 au 
 T_jup = 3.805 
[ 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 26.821   .3288 5 autocmod 2.8

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