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(2018 YR2)
Classification: Apollo [NEO]          SPK-ID: 3837535
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 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2731520603467232 0.00033537  
a 1.366732819737609 0.00064726 au
q .993406934082794 1.2118e-05 au
i 6.554847998225262 0.0070643 deg
node 98.07897861856344 2.7836e-05 deg
peri 23.31761438063765 0.00049171 deg
M 306.1760937280249 0.217 deg
tp 2459087.756256076521
(2020-Aug-26.25625608)
0.41378 TDB
period 583.6115280971959
1.60
0.41458
0.001135
d
yr
n .6168486787328245 0.00043819 deg/d
Q 1.740058705392423 0.00082406 au
  Orbit Determination Parameters
   # obs. used (total)      37  
   data-arc span      19 days  
   first obs. used      2018-12-14  
   last obs. used      2019-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .5037  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-02 03:42:08  

Additional Information
 Earth MOID = .0232957 au 
 Jupiter MOID = 3.33904 au 
 T_jup = 4.787 
[ 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 26.6   .39796 E2019A19 autocmod 2.6q

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