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390185 (2012 WF16)
Classification: Main-belt Asteroid          SPK-ID: 2390185
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2308566351191844 9.8935e-08  
a 2.569961686888516 2.3704e-08 au
q 1.97666897946821 2.6911e-07 au
i 6.227745517558787 5.2465e-06 deg
node 164.0601454139363 3.9291e-05 deg
peri 215.9797916925046 4.1674e-05 deg
M 322.127901257652 8.5317e-06 deg
tp 2459158.808878534985
(2020-Nov-05.30887853)
3.479e-05 TDB
period 1504.833324931835
4.12
2.082e-05
5.7e-08
d
yr
n .2392291518506257 3.3098e-09 deg/d
Q 3.163254394308822 2.9176e-08 au
  Orbit Determination Parameters
   # obs. used (total)      370  
   data-arc span      4325 days (11.84 yr)  
   first obs. used      2008-12-21  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50486  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:43:06  

Additional Information
 Earth MOID = .982601 au 
 Jupiter MOID = 2.30395 au 
 T_jup = 3.384 
[ 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 16.6   n/a MPO437597  

390185 (2012 WF16)          Discovered 2008-Dec-21 by CSS at Catalina
Reference: Last Updated: 2014-03-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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