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(2016 JE18)
Classification: Apollo [NEO]          SPK-ID: 3753076
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .238403018305513 0.00031551  
a 1.328680190380448 0.00055435 au
q 1.011918822631006 4.468e-06 au
i 13.79652903659364 0.012234 deg
node 48.75573480887002 0.00022045 deg
peri 208.4566142000755 0.0046325 deg
M 216.9889862903406 0.58862 deg
tp 2459222.726630454405
(2021-Jan-08.22663045)
1.0537 TDB
period 559.4085720279201
1.53
0.35009
0.0009585
d
yr
n .6435367958252031 0.00040274 deg/d
Q 1.645441558129891 0.00068651 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      3 days  
   first obs. used      2016-05-08  
   last obs. used      2016-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .42839  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:26:00  

Additional Information
 Earth MOID = .0241043 au 
 Jupiter MOID = 3.40363 au 
 T_jup = 4.869 
[ 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 26.3   n/a MPO378539  
rotation period rot_per 1.2 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.A.; Binzel, R.P.; Christensen, E.J.; et al. (2018) Astrophys. J. Supp. Series 2391, A4.]

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