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85806 (1998 WG8)
Classification: Main-belt Asteroid          SPK-ID: 2085806
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1170082253702718 3.7515e-08  
a 2.227590315818238 7.4437e-09 au
q 1.966943926112343 8.2086e-08 au
i 6.750960877991106 4.9082e-06 deg
node 290.6191745263393 3.3457e-05 deg
peri 160.7825925326871 3.976e-05 deg
M 166.0574667818768 2.0604e-05 deg
tp 2458440.346161552786
(2018-Nov-17.84616155)		 6.8963e-05 TDB
period 1214.371059302497
3.32		 6.0869e-06
1.667e-08		 d
yr
n .2964497525219142 1.4859e-09 deg/d
Q 2.488236705524133 8.3147e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1279  
   data-arc span      7469 days (20.45 yr)  
   first obs. used      1998-11-25  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51222  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:56:02  

Additional Information
 Earth MOID = .984987 au 
 Jupiter MOID = 2.66614 au 
 T_jup = 3.626 
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[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO474744  

85806 (1998 WG8)          Discovered 1998-Nov-25 by Kobayashi, T. at Oizumi
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 WG8 = 2001 QB84 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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