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(2018 LN4)
Classification: Apollo [NEO]          SPK-ID: 3825179
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2964069218764666 0.00057513  
a 1.306505338994409 0.001086 au
q .9192481130479065 1.2753e-05 au
i 24.06565428108823 0.030135 deg
node 262.2910409328433 0.00031704 deg
peri 66.36040808021987 0.044375 deg
M 207.4428907593242 0.67493 deg
tp 2459431.650671863856
(2021-Aug-05.15067186)
1.3108 TDB
period 545.462891143987
1.49
0.68011
0.001862
d
yr
n .6599899018702814 0.00082291 deg/d
Q 1.693762564940911 0.0014079 au
  Orbit Determination Parameters
   # obs. used (total)      70  
   data-arc span      11 days  
   first obs. used      2018-06-12  
   last obs. used      2018-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .45014  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Jul-24 06:23:56  

Additional Information
 Earth MOID = .0408431 au 
 Jupiter MOID = 3.69148 au 
 T_jup = 4.857 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458285.5 (2018-Jun-16.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2963742766211933 0.00057525  
q .9194978450917289 1.1894e-05 au
tp 2458340.712803015914
(2018-Aug-10.21280302)
0.048681 TDB
node 262.3004072638701 0.00027924 deg
peri 66.32877631602457 0.04434 deg
i 24.07548096562811 0.030112 deg
  Orbit Determination Parameters
   # obs. used (total)      70  
   data-arc span      11 days  
   first obs. used      2018-06-12  
   last obs. used      2018-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .45014  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Jul-24 06:23:56  

Additional Information
 Jupiter MOID = 3.69148 au 
 T_jup = 4.857 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.309126178721705E-7 6.811764114711061E-9 -2.800366239888091E-5 1.606041767591808E-7 -2.550614724292195E-5 1.732178159499478E-5
q 6.811764114711061E-9 1.41467391841955E-10 -5.766772876093027E-7 3.307631061584214E-9 -5.253688121731083E-7 3.566232286131486E-7
tp -2.800366239888091E-5 -5.766772876093027E-7 .002369867433896861 -1.359150922814848E-5 .002158532521850682 -.001465874852782859
node 1.606041767591808E-7 3.307631061584214E-9 -1.359150922814848E-5 7.797680049166628E-8 -1.237953086272554E-5 8.407156887213623E-6
peri -2.550614724292195E-5 -5.253688121731083E-7 .002158532521850682 -1.237953086272554E-5 .001966055655224127 -.001335146110380252
i 1.732178159499478E-5 3.566232286131486E-7 -.001465874852782859 8.407156887213623E-6 -.001335146110380252 .0009067253546928803

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 23.7   n/a E2018M96  

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