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JPL Small-Body Database Browser
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(2018 WF2)
Classification: Apollo [NEO]          SPK-ID: 3836412
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 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5861135203257887 0.00072358  
a 2.15625294880154 0.0036367 au
q .8924439422666068 5.5319e-05 au
i 1.479634656434015 0.0014989 deg
node 59.63111738724954 0.0012836 deg
peri 52.73923106670189 0.004133 deg
M 160.2454308528167 0.40232 deg
tp 2458485.708768678993
(2019-Jan-02.20876868)
0.0099223 TDB
period 1156.506255992914
3.17
2.9258
0.00801
d
yr
n .3112823628359221 0.0007875 deg/d
Q 3.420061955336473 0.0057682 au
  Orbit Determination Parameters
   # obs. used (total)      15  
   data-arc span      1 day  
   first obs. used      2018-11-29  
   last obs. used      2018-11-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .78061  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Nov-30 20:42:31  

Additional Information
 Earth MOID = .00481907 au 
 Jupiter MOID = 1.72672 au 
 T_jup = 3.456 
[ 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 28.4   .22141 E2018X11 autocmod 2.6q

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