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(2016 JH18)
Classification: Aten [NEO]          SPK-ID: 3753079
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .259508061449354 0.00069257  
a .8967377495900468 8.5773e-05 au
q .6640270745654775 0.00068455 au
i 4.339073873001032 0.01321 deg
node 224.8814635731057 0.0026869 deg
peri 147.698097610518 0.0073521 deg
M 30.95164393779483 0.51692 deg
tp 2459173.832774983862
(2020-Nov-20.33277498)
0.44154 TDB
period 310.167725665995
0.85
0.044501
0.0001218
d
yr
n 1.160662345597063 0.00016653 deg/d
Q 1.129448424614616 0.00010803 au
  Orbit Determination Parameters
   # obs. used (total)      52  
   data-arc span      6 days  
   first obs. used      2016-05-08  
   last obs. used      2016-05-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .63083  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 17:06:16  

Additional Information
 Earth MOID = .019411 au 
 Jupiter MOID = 4.29096 au 
 T_jup = 6.602 
[ 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 26.1   n/a MPO378539  

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