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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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7321192204557692 1.1075e-07  
a 1.950539097999335 1.1811e-07 au
q .5225119341035627 2.4754e-07 au
i 4.557096389412277 8.1843e-06 deg
node 349.2580239191636 6.4914e-05 deg
peri 244.2789460458067 8.4493e-05 deg
M 251.9072585532274 9.1561e-06 deg
tp 2459299.261373749121
(2021-Mar-25.76137375)
1.0494e-05 TDB
period 995.0168078829385
2.72
9.0376e-05
2.474e-07
d
yr
n .3618029335262778 3.2862e-08 deg/d
Q 3.378566261895107 2.0458e-07 au
  Orbit Determination Parameters
   # obs. used (total)      253  
   data-arc span      888 days (2.43 yr)  
   first obs. used      2018-09-01  
   last obs. used      2021-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .40009  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-15 06:48:32  

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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