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(2015 LQ21)
Classification: Amor [NEO]          SPK-ID: 3721163
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5469517151370831 1.1336e-06  
a 2.25117576588537 5.6113e-06 au
q 1.01989131965933 7.98e-08 au
i 1.429632678759462 4.5944e-06 deg
node 159.6252937864479 0.0006184 deg
peri 90.18361569084173 0.00061921 deg
M 171.7835795903952 0.0019958 deg
tp 2458411.803191087704
(2018-Oct-20.30319109)
0.0046386 TDB
period 1233.708435426479
3.38
0.0046127
1.263e-05
d
yr
n .2918031438080848 1.091e-06 deg/d
Q 3.48246021211141 8.6804e-06 au
  Orbit Determination Parameters
   # obs. used (total)      124  
   # delay obs. used      2  
   # Doppler obs. used      1  
   data-arc span      34 days  
   first obs. used      2015-06-14  
   last obs. used      2015-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .33547  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-14 06:13:06  

Additional Information
 Earth MOID = .025994 au 
 Jupiter MOID = 1.57396 au 
 T_jup = 3.412 
[ 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 24.5   n/a E2015T23  
rotation period rot_per 0.69 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Thirouin, A.; Moskovitz, N.; Binzel, R.P.; Christensen, E.; et al. (2016) Astron. J. 152, A163.]

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