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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7321193445181091 2.0833e-07  
a 1.950538990670217 1.977e-07 au
q .5225116633637235 4.5908e-07 au
i 4.557083852871501 1.5098e-05 deg
node 349.2580424295629 7.1891e-05 deg
peri 244.2789008771744 9.9224e-05 deg
M 251.9072782955773 2.0923e-05 deg
tp 2459299.261294523364
(2021-Mar-25.76129452)		 8.3109e-05 TDB
period 995.016725756201
2.72		 0.00015127
4.142e-07		 d
yr
n .3618029633887855 5.5006e-08 deg/d
Q 3.37856631797671 3.4243e-07 au
   Orbit Determination Parameters
   # obs. used (total)      207  
   data-arc span      876 days (2.40 yr)  
   first obs. used      2018-09-01  
   last obs. used      2021-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .39623  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-25 05:31:18  

Additional Information
 Earth MOID = .0241331 au 
 Jupiter MOID = 1.66989 au 
 T_jup = 3.499 
[ 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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