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(2018 RB2)
Classification: Apollo [NEO]          SPK-ID: 3827318
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3256101291132658 0.00014414  
a 1.378405884166058 0.0002571 au
q .9295829662522626 2.5304e-05 au
i 9.21673436775729 0.0030491 deg
node 342.8726412370404 3.441e-05 deg
peri 312.2133319662767 0.00051781 deg
M 49.91321994512808 0.11687 deg
tp 2458918.544672304759
(2020-Mar-10.04467230)
0.16896 TDB
period 591.1042806439217
1.62
0.16538
0.0004528
d
yr
n .6090295939116406 0.00017039 deg/d
Q 1.827228802079853 0.00034081 au
  Orbit Determination Parameters
   # obs. used (total)      58  
   data-arc span      9 days  
   first obs. used      2018-09-07  
   last obs. used      2018-09-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .40345  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-30 06:02:22  

Additional Information
 Earth MOID = .00212812 au 
 Jupiter MOID = 3.4054 au 
 T_jup = 4.736 
[ 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 27.3   .29342 MPO452097 autocmod 2.6n

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