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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1170082667341523 3.7506e-08  
a 2.227590316131796 7.4382e-09 au
q 1.966943834247432 8.2059e-08 au
i 6.750964121156899 4.8991e-06 deg
node 290.619174384976 3.3383e-05 deg
peri 160.7826022574345 3.9653e-05 deg
M 166.0574609533168 2.0545e-05 deg
tp 2458440.346181095722
(2018-Nov-17.84618110)
6.8758e-05 TDB
period 1214.371059558901
3.32
6.0824e-06
1.665e-08
d
yr
n .2964497524593213 1.4848e-09 deg/d
Q 2.48823679801616 8.3085e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1285  
   data-arc span      7859 days (21.52 yr)  
   first obs. used      1998-11-25  
   last obs. used      2020-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51174  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:17:57  

Additional Information
 Earth MOID = .984987 au 
 Jupiter MOID = 2.66614 au 
 T_jup = 3.626 
[ show covariance matrix ]

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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