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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6321127726793236 0.00018494  
a 2.246482656055236 0.0010351 au
q .8264522755601496 3.4647e-05 au
i 3.454484489445833 0.00056628 deg
node 83.61031853793995 0.00021222 deg
peri 236.1754940619791 8.7548e-05 deg
M 353.6830159435212 0.0054015 deg
tp 2459418.080440827147
(2021-Jul-22.58044083)
0.0035371 TDB
period 1229.852510044706
3.37
0.85003
0.002327
d
yr
n .2927180268038105 0.00020232 deg/d
Q 3.666513036550323 0.0016894 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 = .00260278 au 
 Jupiter MOID = 1.68836 au 
 T_jup = 3.333 
[ 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 26.47   .45883 E2021N14 autocmod 2.9c

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