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(2018 LK)
Classification: Apollo [NEO, PHA]          SPK-ID: 3825086
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3166983981237735 3.0125e-07  
a 1.067770036550916 9.0028e-08 au
q .7296089764106776 2.6332e-07 au
i 13.93508336539806 1.1355e-05 deg
node 85.18523472771497 3.8365e-06 deg
peri 279.874810627374 1.3599e-05 deg
M 215.9140933278708 5.6261e-05 deg
tp 2459161.799872560935
(2020-Nov-08.29987256)
8.3348e-05 TDB
period 403.0092565130017
1.10
5.0969e-05
1.395e-07
d
yr
n .8932797303835273 1.1297e-07 deg/d
Q 1.405931096691154 1.1854e-07 au
  Orbit Determination Parameters
   # obs. used (total)      182  
   # delay obs. used      2  
   # Doppler obs. used      1  
   data-arc span      658 days (1.80 yr)  
   first obs. used      2018-04-16  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .3988  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-05 05:24:07  

Additional Information
 Earth MOID = 7.39099E-5 au 
 Jupiter MOID = 4.09681 au 
 T_jup = 5.707 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458413.5 (2018-Oct-22.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .316724111088588 3.0126e-07  
q .7296088871177434 2.6336e-07 au
tp 2458355.806504474043
(2018-Aug-25.30650447)
1.9262e-05 TDB
node 85.19375854613321 3.8505e-06 deg
peri 279.9053813514601 1.3545e-05 deg
i 13.93496303269816 1.1355e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      182  
   # delay obs. used      2  
   # Doppler obs. used      1  
   data-arc span      658 days (1.80 yr)  
   first obs. used      2018-04-16  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .3988  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-05 05:24:07  

Additional Information
 Jupiter MOID = 4.09681 au 
 T_jup = 5.707 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.075911757607099E-14 -7.91614304791501E-14 -5.758586792034302E-12 -6.880012759140284E-13 3.70228914632525E-12 2.753804300296299E-12
q -7.91614304791501E-14 6.935815838356035E-14 4.992600857551384E-12 5.976898312197846E-13 -3.297060855571654E-12 -2.407623534059241E-12
tp -5.758586792034302E-12 4.992600857551384E-12 3.710313035120688E-10 4.07501784209846E-11 -2.228611345937576E-10 -1.738936429685442E-10
node -6.880012759140284E-13 5.976898312197846E-13 4.07501784209846E-11 1.482631009924608E-11 -4.007965022596748E-11 -3.134799270430066E-11
peri 3.70228914632525E-12 -3.297060855571654E-12 -2.228611345937576E-10 -4.007965022596748E-11 1.834715252724957E-10 1.234557904010005E-10
i 2.753804300296299E-12 -2.407623534059241E-12 -1.738936429685442E-10 -3.134799270430066E-11 1.234557904010005E-10 1.289335133232743E-10

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 21.7   n/a E2018L78  
rotation period rot_per 0.122960 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2018) Minor Planet Bull. 45, 366-379.]

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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