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JPL Small-Body Database Browser
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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5689544526987135 2.3819e-06  
a 1.907779586807442 1.0186e-05 au
q .822339896125636 3.0313e-07 au
i 1.889197675848604 1.3302e-05 deg
node 86.32916059371915 1.853e-05 deg
peri 243.3870598921064 8.6869e-05 deg
M 87.84757473429933 0.0064676 deg
tp 2459161.635164246531
(2020-Nov-08.13516425)
0.01541 TDB
period 962.4778046176002
2.64
0.0077083
2.11e-05
d
yr
n .3740345993152858 2.9956e-06 deg/d
Q 2.993219277489247 1.5981e-05 au
  Orbit Determination Parameters
   # obs. used (total)      54  
   # 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      4  
   norm. resid. RMS      .39152  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 13:51:46  

Additional Information
 Earth MOID = .00104247 au 
 Jupiter MOID = 2.38861 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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