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(2018 PD9)
Classification: Apollo [NEO]          SPK-ID: 3826652
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2667121878447634 0.00030173  
a 1.316650078216618 0.00048017 au
q .9654834552294852 4.5227e-05 au
i 1.03055552766122 0.0008712 deg
node 121.2435389989901 0.00079629 deg
peri 144.6520978387419 0.0010357 deg
M 231.1970653941026 0.32748 deg
tp 2459397.936406527072
(2021-Jul-02.43640653)
0.60998 TDB
period 551.8283148378795
1.51
0.30187
0.0008265
d
yr
n .6523768177893583 0.00035687 deg/d
Q 1.667816701203751 0.00060823 au
  Orbit Determination Parameters
   # obs. used (total)      24  
   data-arc span      7 days  
   first obs. used      2018-08-07  
   last obs. used      2018-08-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .49988  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:34:56  

Additional Information
 Earth MOID = .001654 au 
 Jupiter MOID = 3.40815 au 
 T_jup = 4.921 
[ 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 27.4   .32676 MPO452044 autocmod 2.6n

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