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392688 (2011 WL4)
Classification: Main-belt Asteroid          SPK-ID: 2392688
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 .03904647195023094 1.6239e-07  
a 3.051147374503201 5.6596e-08 au
q 2.932010834128641 4.725e-07 au
i 9.868863606689311 1.7556e-05 deg
node 231.9119944275196 5.537e-05 deg
peri 123.3504070929002 0.00021139 deg
M 273.4741953042572 0.00021395 deg
tp 2459468.382014133722
(2021-Sep-10.88201413)
0.0011648 TDB
period 1946.673893186309
5.33
5.4163e-05
1.483e-07
d
yr
n .1849308203392779 5.1454e-09 deg/d
Q 3.170283914877762 5.8806e-08 au
  Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      8569 days (23.46 yr)  
   first obs. used      1995-11-14  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58772  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:03:50  

Additional Information
 Earth MOID = 1.94341 au 
 Jupiter MOID = 2.0233 au 
 T_jup = 3.213 
[ 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 15.9   n/a MPO434456  

392688 (2011 WL4)          Discovered 2009-Apr-20 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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