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312489 (2008 WR108)
Classification: Inner Main-belt Asteroid          SPK-ID: 2312489
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07136940847352483 7.7366e-08  
a 1.902223103253427 1.4032e-08 au
q 1.766462565589557 1.4993e-07 au
i 20.32648797498451 1.0024e-05 deg
node 255.3593595119387 2.2e-05 deg
peri 299.5248199231021 8.7482e-05 deg
M 9.300729178706034 7.6599e-05 deg
tp 2458975.742596049518
(2020-May-06.24259605)
0.00020397 TDB
period 958.2759857774496
2.62
1.0603e-05
2.903e-08
d
yr
n .3756746546329572 4.1567e-09 deg/d
Q 2.037983640917297 1.5033e-08 au
  Orbit Determination Parameters
   # obs. used (total)      205  
   data-arc span      6503 days (17.80 yr)  
   first obs. used      2002-07-09  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51937  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:27:11  

Additional Information
 Earth MOID = .799122 au 
 Jupiter MOID = 3.03799 au 
 T_jup = 3.866 
[ 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 17.0   n/a MPO450244  

312489 (2008 WR108)          Discovered 2008-Nov-30 by CSS at Catalina
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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