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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2308289725044675 9.447e-08  
a 2.569876522795438 2.2276e-08 au
q 1.976674565575213 2.5645e-07 au
i 6.228272551670239 4.9874e-06 deg
node 164.0566947718925 3.9092e-05 deg
peri 216.056233636221 4.1251e-05 deg
M 56.81914700434585 7.8135e-06 deg
tp 2459159.002511689811
(2020-Nov-05.50251169)
3.3723e-05 TDB
period 1504.758524184259
4.12
1.9565e-05
5.357e-08
d
yr
n .2392410438047916 3.1107e-09 deg/d
Q 3.163078480015662 2.7418e-08 au
  Orbit Determination Parameters
   # obs. used (total)      401  
   data-arc span      4405 days (12.06 yr)  
   first obs. used      2008-12-21  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50654  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 07:14:38  

Additional Information
 Earth MOID = .981874 au 
 Jupiter MOID = 2.30618 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 16.91   n/a MPCxxxxx  

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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