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442756 (2012 WX31)
Classification: Main-belt Asteroid          SPK-ID: 2442756
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1076295105487852 5.7765e-08  
a 2.317251293409713 2.1536e-08 au
q 2.067846670881486 1.3341e-07 au
i 8.349517974235701 6.3057e-06 deg
node 255.8274047509907 3.6392e-05 deg
peri 169.2107319073394 5.177e-05 deg
M 49.65997593549836 3.1102e-05 deg
tp 2458822.769431223555
(2019-Dec-05.26943122)
0.00011232 TDB
period 1288.421984791647
3.53
1.7962e-05
4.918e-08
d
yr
n .2794115625543414 3.8952e-09 deg/d
Q 2.56665591593794 2.3854e-08 au
  Orbit Determination Parameters
   # obs. used (total)      187  
   data-arc span      5176 days (14.17 yr)  
   first obs. used      2005-11-26  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48105  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:43:03  

Additional Information
 Earth MOID = 1.08226 au 
 Jupiter MOID = 2.69781 au 
 T_jup = 3.558 
[ 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 17.2   n/a MPO503572  

442756 (2012 WX31)          Discovered 2005-Nov-26 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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