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JPL Small-Body Database Browser
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(2018 RA2)
Classification: Apollo [NEO]          SPK-ID: 3827317
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3992902163051907 0.00069963  
a 1.500285551840298 0.0015643 au
q .9012362093264331 0.00010996 au
i 6.648125074406944 0.010183 deg
node 344.5532465346242 0.00020645 deg
peri 61.55479633549826 0.0041337 deg
M 96.80482000429926 0.14189 deg
tp 2458420.009728485787
(2018-Oct-28.50972849)
0.01774 TDB
period 671.2113894972496
1.84
1.0498
0.002874
d
yr
n .5363436998136265 0.00083885 deg/d
Q 2.099334894354163 0.0021889 au
  Orbit Determination Parameters
   # obs. used (total)      56  
   data-arc span      7 days  
   first obs. used      2018-09-07  
   last obs. used      2018-09-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .32309  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-27 14:01:09  

Additional Information
 Earth MOID = .0204329 au 
 Jupiter MOID = 3.32821 au 
 T_jup = 4.446 
[ 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 25.5   .38282 MPO452096 autocmod 2.6n

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