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(2018 RA)
Classification: Apollo [NEO]          SPK-ID: 3827149
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4638203944432954 0.00020392  
a 1.882652924175679 0.00071498 au
q 1.009440102284692 5.8281e-07 au
i 4.428765272921638 0.0014422 deg
node 336.4005703984083 3.8627e-05 deg
peri 13.4888581794569 0.00072631 deg
M 315.9443166181156 0.17996 deg
tp 2459315.965771896623
(2021-Apr-11.46577190)
0.53744 TDB
period 943.5258902345548
2.58
0.53749
0.001472
d
yr
n .3815475587114056 0.00021735 deg/d
Q 2.755865746066666 0.0010466 au
  Orbit Determination Parameters
   # obs. used (total)      68  
   data-arc span      3 days  
   first obs. used      2018-09-01  
   last obs. used      2018-09-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .38049  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:38:34  

Additional Information
 Earth MOID = .00599507 au 
 Jupiter MOID = 2.68503 au 
 T_jup = 3.826 
[ 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 26.7   .21998 MPO452087 autocmod 2.6n

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