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JPL Small-Body Database Browser
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(2018 PR9)
Classification: Apollo [NEO]          SPK-ID: 3826676
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 2458339.5 (2018-Aug-09.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5443065197999031 0.0085708  
a 1.805339239067979 0.031513 au
q .8226813207926823 0.0013464 au
i 4.499334146829229 0.071976 deg
node 129.6447895280657 0.052071 deg
peri 266.8873974933148 0.16759 deg
M 335.3181257148239 0.7463 deg
tp 2458400.245245910372
(2018-Oct-08.74524591)
0.24644 TDB
period 886.0059926999954
2.43
23.198
0.06351
d
yr
n .4063177935207231 0.010639 deg/d
Q 2.787997157343276 0.048666 au
  Orbit Determination Parameters
   # obs. used (total)      12  
   data-arc span      1 day  
   first obs. used      2018-08-08  
   last obs. used      2018-08-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      9  
   norm. resid. RMS      .63418  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Aug-10 09:12:07  

Additional Information
 Earth MOID = .0331572 au 
 Jupiter MOID = 2.65469 au 
 T_jup = 3.867 
[ 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 24.3   .43857 MPO452046 autocmod 2.6n

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