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(2015 LR21)
Classification: Apollo [NEO]          SPK-ID: 3721164
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .568953409431682 2.3181e-06  
a 1.907537531684669 9.9883e-06 au
q .8222375494137814 2.8414e-07 au
i 1.889256277765586 1.3387e-05 deg
node 86.32940440090884 1.8634e-05 deg
peri 243.3792925493664 8.5503e-05 deg
M 299.7169607322121 0.0051614 deg
tp 2459161.639014575893
(2020-Nov-08.13901458)
0.015062 TDB
period 962.2946346422702
2.63
0.0075582
2.069e-05
d
yr
n .3741057957096776 2.9384e-06 deg/d
Q 2.992837513955557 1.5671e-05 au
  Orbit Determination Parameters
   # obs. used (total)      63  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      9 days  
   first obs. used      2015-06-11  
   last obs. used      2015-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .37191  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-14 06:13:06  

Additional Information
 Earth MOID = .00102161 au 
 Jupiter MOID = 2.38865 au 
 T_jup = 3.723 
[ 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 26.6   n/a MPO409536  

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