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JPL Small-Body Database Browser
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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2308566740692023 1.0198e-07  
a 2.569961698622078 3.4759e-08 au
q 1.976668888392947 2.7669e-07 au
i 6.227742258101196 6.0296e-06 deg
node 164.0600418679889 7.938e-05 deg
peri 215.9798971390901 8.0122e-05 deg
M 322.1278938360065 1.3402e-05 deg
tp 2459158.808910642325
(2020-Nov-05.30891064)
5.7261e-05 TDB
period 1504.833335237663
4.12
3.053e-05
8.359e-08
d
yr
n .2392291502122686 4.8534e-09 deg/d
Q 3.163254508851208 4.2783e-08 au
  Orbit Determination Parameters
   # obs. used (total)      184  
   data-arc span      3815 days (10.44 yr)  
   first obs. used      2008-12-21  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60226  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:06:44  

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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