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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .546772502045634 1.1191e-06  
a 2.251415344545165 5.5578e-06 au
q 1.020403343464272 7.7341e-08 au
i 1.429665084131332 4.5384e-06 deg
node 159.6111618799908 0.00061237 deg
peri 90.2006545824736 0.00061393 deg
M 230.1240619427983 0.0021904 deg
tp 2459645.651720259813
(2022-Mar-07.15172026)
0.0091561 TDB
period 1233.905384559773
3.38
0.004569
1.251e-05
d
yr
n .291756567808835 1.0803e-06 deg/d
Q 3.482427345626057 8.5967e-06 au
  Orbit Determination Parameters
   # obs. used (total)      112  
   # 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      3  
   norm. resid. RMS      .34704  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 13:51:45  

Additional Information
 Earth MOID = .0257926 au 
 Jupiter MOID = 1.57302 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. 2020-October); 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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