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(2018 PK9)
Classification: Apollo [NEO]          SPK-ID: 3826669
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 2458338.5 (2018-Aug-08.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4732790154132909 0.0032714  
a 1.857843242571712 0.011434 au
q .9785650219351363 5.9179e-05 au
i 2.487006697835207 0.012593 deg
node 326.1684238540468 0.0096295 deg
peri 39.3202089480678 0.017567 deg
M 343.0866733866939 0.17415 deg
tp 2458381.954880749716
(2018-Sep-20.45488075)
0.046346 TDB
period 924.9367334744461
2.53
8.5389
0.02338
d
yr
n .3892158100886432 0.0035932 deg/d
Q 2.737121463208287 0.016846 au
  Orbit Determination Parameters
   # obs. used (total)      14  
   data-arc span      5 days  
   first obs. used      2018-08-07  
   last obs. used      2018-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .38701  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Aug-17 07:06:10  

Additional Information
 Earth MOID = .0103042 au 
 Jupiter MOID = 2.72445 au 
 T_jup = 3.853 
[ 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 25.3   .43987 MPO452045 autocmod 2.6n

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