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(2019 LY4)
Classification: Apollo [NEO]          SPK-ID: 3842871
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 .5664756210845286 0.00045802  
a 1.763730496664349 0.0017531 au
q .7646201681406877 4.7821e-05 au
i 26.99193393880245 0.014841 deg
node 254.7819125719346 1.826e-05 deg
peri 288.6217533065396 0.013455 deg
M 171.4085808873314 0.26329 deg
tp 2458593.141463227248
(2019-Apr-19.64146323)
0.018372 TDB
period 855.5526944977436
2.34
1.2756
0.003492
d
yr
n .420780627909003 0.00062736 deg/d
Q 2.762840825188011 0.0027462 au
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      6 days  
   first obs. used      2019-06-06  
   last obs. used      2019-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .57765  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jun-17 04:42:18  

Additional Information
 Earth MOID = .000221091 au 
 Jupiter MOID = 2.73976 au 
 T_jup = 3.805 
[ 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 27.8   .26625 MPO473681 autocmod 2.6q

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