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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .185583411212514 1.4942e-07  
a 2.775377656237402 7.341e-08 au
q 2.260313603389873 4.409e-07 au
i 7.773046344309515 9.602e-06 deg
node 207.4759028153389 0.00010007 deg
peri 168.9585293769159 0.00011126 deg
M 236.8640729452439 5.7441e-05 deg
tp 2459178.148755329306
(2020-Nov-24.64875533)
0.00028826 TDB
period 1688.812980033661
4.62
6.7005e-05
1.834e-07
d
yr
n .2131674757691788 8.4576e-09 deg/d
Q 3.290441709084932 8.7034e-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 = 1.26188 au 
 Jupiter MOID = 2.17433 au 
 T_jup = 3.297 
[ 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 17.1   n/a MPO408998  

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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