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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5471516335213616 1.1327e-06  
a 2.250617743308363 5.6085e-06 au
q 1.019188568625031 8.0109e-08 au
i 1.4297931474074 4.5906e-06 deg
node 159.6405625217878 0.00061844 deg
peri 90.14273155336981 0.00061924 deg
M 55.07635232404959 0.0015602 deg
tp 2458411.825284765794
(2018-Oct-20.32528477)
0.0046394 TDB
period 1233.249745456634
3.38
0.0046099
1.262e-05
d
yr
n .29191167590041 1.0912e-06 deg/d
Q 3.482046917991693 8.6772e-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 = .0257766 au 
 Jupiter MOID = 1.57377 au 
 T_jup = 3.413 
[ 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-January); 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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