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(2020 OR4)
Classification: Apollo [NEO]          SPK-ID: 54049788
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.


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Orbital Elements at Epoch 2459052.5 (2020-Jul-22.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7752167865117661 0.00092425  
a 2.524292761273487 0.0090893 au
q .5674186386641418 0.00028998 au
i 1.049584798810959 0.0013265 deg
node 119.984644991504 0.00052784 deg
peri 276.6818088373092 0.0018818 deg
M 347.0437371547151 0.077211 deg
tp 2459105.221196623441
(2020-Sep-12.72119662)
0.029431 TDB
period 1464.900103608647
4.01
7.9121
0.02166
d
yr
n .2457505457970635 0.0013273 deg/d
Q 4.481166883882832 0.016135 au
  Orbit Determination Parameters
   # obs. used (total)      37  
   data-arc span      6 days  
   first obs. used      2020-07-20  
   last obs. used      2020-07-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .33038  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jul-27 06:31:23  

Additional Information
 Earth MOID = .00163788 au 
 Jupiter MOID = .957859 au 
 T_jup = 2.941 
[ 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 25.629   .26198 2 autocmod 2.8

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