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JPL Small-Body Database Browser
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442502 (2011 WJ14)
Classification: Main-belt Asteroid          SPK-ID: 2442502
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 .1842948612546371 1.4952e-07  
a 2.774196757465923 7.4561e-08 au
q 2.262926550955677 4.417e-07 au
i 7.764972595191797 9.5893e-06 deg
node 207.3597177238602 0.00010027 deg
peri 169.1768902897406 0.00011164 deg
M 321.9046668236947 6.0688e-05 deg
tp 2459179.096766612090
(2020-Nov-25.59676661)
0.00029041 TDB
period 1687.735232102988
4.62
6.8041e-05
1.863e-07
d
yr
n .2133035994937578 8.5993e-09 deg/d
Q 3.28546696397617 8.8302e-08 au
  Orbit Determination Parameters
   # obs. used (total)      65  
   data-arc span      4635 days (12.69 yr)  
   first obs. used      2006-09-23  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43426  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:19  

Additional Information
 Earth MOID = 1.26528 au 
 Jupiter MOID = 2.18198 au 
 T_jup = 3.298 
[ 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 MPO477090  

442502 (2011 WJ14)          Discovered 2006-Sep-23 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 WJ14 = 2006 SY155 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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