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(2020 RF4)
Classification: Apollo [NEO]          SPK-ID: 54053941
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 2459105.5 (2020-Sep-13.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6378852614993757 0.0021121  
a 2.335011904193597 0.012759 au
q .8455422250829089 0.00031159 au
i 4.168504091604467 0.012665 deg
node 160.4873992409192 0.0020824 deg
peri 257.7836301273259 0.0016039 deg
M 345.7529022066522 0.12644 deg
tp 2459157.076988402920
(2020-Nov-03.57698840)
0.035008 TDB
period 1303.263029030431
3.57
10.682
0.02925
d
yr
n .2762297341219169 0.002264 deg/d
Q 3.824481583304284 0.020897 au
  Orbit Determination Parameters
   # obs. used (total)      45  
   data-arc span      9 days  
   first obs. used      2020-09-11  
   last obs. used      2020-09-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .33106  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-20 06:39:15  

Additional Information
 Earth MOID = .0298407 au 
 Jupiter MOID = 1.57372 au 
 T_jup = 3.257 
[ 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 24.647   .43133 5 autocmod 2.8

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