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(2021 LC4)
Classification: Apollo [NEO]          SPK-ID: 54158072
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6327065534247123 0.00018455  
a 2.24992029205614 0.0010364 au
q .8263809785889776 3.4558e-05 au
i 3.226590233395415 0.00068885 deg
node 83.79907788291329 8.8695e-05 deg
peri 236.0045430624909 5.6926e-05 deg
M 296.4535433908437 0.04494 deg
tp 2459418.089514960868
(2021-Jul-22.58951496)
0.0035369 TDB
period 1232.676526209734
3.37
0.85171
0.002332
d
yr
n .2920474206699932 0.00020179 deg/d
Q 3.673459605523302 0.0016921 au
  Orbit Determination Parameters
   # obs. used (total)      73  
   data-arc span      10 days  
   first obs. used      2021-06-02  
   last obs. used      2021-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .3771  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-15 06:33:52  

Additional Information
 Earth MOID = .002839 au 
 Jupiter MOID = 1.68053 au 
 T_jup = 3.330 
[ 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 26.422   .45883 4 autocmod 2.9c

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