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(2018 LJ1)
Classification: Amor [NEO]          SPK-ID: 3825104
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1814884324702999 2.3537e-05  
a 1.278649096268439 4.0697e-05 au
q 1.046589076107114 3.2163e-06 au
i 2.208708940116516 0.00023467 deg
node 72.9024146984473 0.0001561 deg
peri 213.7427746862664 0.00031741 deg
M 111.8785051117258 0.022417 deg
tp 2458836.376925127967
(2019-Dec-18.87692513)
0.02505 TDB
period 528.1113373380184
1.45
0.025213
6.903e-05
d
yr
n .6816744397395533 3.2545e-05 deg/d
Q 1.510709116429763 4.8083e-05 au
  Orbit Determination Parameters
   # obs. used (total)      45  
   data-arc span      95 days  
   first obs. used      2018-06-05  
   last obs. used      2018-09-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .46261  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Sep-09 07:01:48  

Additional Information
 Earth MOID = .0360997 au 
 Jupiter MOID = 3.60604 au 
 T_jup = 5.044 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458277.5 (2018-Jun-08.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1819019949783321 2.3438e-05  
q 1.046614493042581 3.2762e-06 au
tp 2458307.779717788338
(2018-Jul-08.27971779)
0.0001016 TDB
node 73.60829092287524 8.8315e-05 deg
peri 212.5553982590944 0.00014761 deg
i 2.2419991098193 0.00022689 deg
  Orbit Determination Parameters
   # obs. used (total)      45  
   data-arc span      95 days  
   first obs. used      2018-06-05  
   last obs. used      2018-09-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .46261  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Sep-09 07:01:48  

Additional Information
 Jupiter MOID = 3.60604 au 
 T_jup = 5.044 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.493185092111424E-10 7.675651702082403E-11 -5.056599106771246E-10 -1.974719944365781E-9 2.428622722572434E-9 5.310863210171919E-9
q 7.675651702082403E-11 1.073339919724128E-11 -7.569473279746525E-11 -2.757170381512847E-10 3.339710106911179E-10 7.425144269195469E-10
tp -5.056599106771246E-10 -7.569473279746525E-11 1.032327214025389E-8 1.251624661950669E-9 7.878649253676502E-9 -5.270437114199474E-9
node -1.974719944365781E-9 -2.757170381512847E-10 1.251624661950669E-9 7.799534787899024E-9 -9.975080077905042E-9 -1.898159471307229E-8
peri 2.428622722572434E-9 3.339710106911179E-10 7.878649253676502E-9 -9.975080077905042E-9 2.17897157856301E-8 2.29885880833004E-8
i 5.310863210171919E-9 7.425144269195469E-10 -5.270437114199474E-9 -1.898159471307229E-8 2.29885880833004E-8 5.148124327661872E-8

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 26.5   n/a E2018N29  

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