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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07151743377836471 8.2502e-08  
a 1.902393518273446 1.7448e-08 au
q 1.766339215809935 1.5653e-07 au
i 20.32702238799583 1.4416e-05 deg
node 255.3608870493193 2.3388e-05 deg
peri 299.4412326422404 9.8663e-05 deg
M 219.1336567821885 9.243e-05 deg
tp 2458975.519372896300
(2020-May-06.01937290)
0.00024679 TDB
period 958.404762689951
2.62
1.3185e-05
3.61e-08
d
yr
n .3756241767722328 5.1677e-09 deg/d
Q 2.038447820736958 1.8696e-08 au
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      5968 days (16.34 yr)  
   first obs. used      2002-07-09  
   last obs. used      2018-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56723  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:43:48  

Additional Information
 Earth MOID = .799115 au 
 Jupiter MOID = 3.03798 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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