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(2018 RB)
Classification: Apollo [NEO, PHA]          SPK-ID: 3827151
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7319746466073866 0.00022085  
a 1.949718823946918 0.0012498 au
q .5225740768046031 9.5632e-05 au
i 4.555930110941116 0.0018585 deg
node 349.2585112413034 0.00074935 deg
peri 244.2784977377223 0.00056659 deg
M 252.0682606941286 0.24539 deg
tp 2459298.628214335776
(2021-Mar-25.12821434)
0.96448 TDB
period 994.3892116546383
2.72
0.95616
0.002618
d
yr
n .3620312808914823 0.00034811 deg/d
Q 3.376863571089232 0.0021647 au
  Orbit Determination Parameters
   # obs. used (total)      184  
   data-arc span      31 days  
   first obs. used      2018-09-01  
   last obs. used      2018-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .36388  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 06:45:00  

Additional Information
 Earth MOID = .0241287 au 
 Jupiter MOID = 1.67151 au 
 T_jup = 3.500 
[ 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 21.8   .37909 E2018T49 autocmod 2.6n

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