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392946 (2012 WX9)
Classification: Main-belt Asteroid          SPK-ID: 2392946
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06341002684080452 7.4814e-08  
a 2.233403294500382 1.9572e-08 au
q 2.091783131649772 1.6575e-07 au
i 2.553614892350501 6.8181e-06 deg
node 245.515024315031 0.00017694 deg
peri 334.7226842518707 0.00018371 deg
M 289.9463179691662 5.1126e-05 deg
tp 2459237.734376913517
(2021-Jan-23.23437691)
0.00017385 TDB
period 1219.12757778065
3.34
1.6025e-05
4.387e-08
d
yr
n .2952931313844601 3.8816e-09 deg/d
Q 2.375023457350993 2.0813e-08 au
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      5251 days (14.38 yr)  
   first obs. used      2004-04-22  
   last obs. used      2018-09-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55926  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:55:24  

Additional Information
 Earth MOID = 1.08349 au 
 Jupiter MOID = 2.59619 au 
 T_jup = 3.636 
[ 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 17.9   n/a MPO455787  

392946 (2012 WX9)          Discovered 2004-Apr-22 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

Alternate Designations
 2012 WX9 = 2007 EG137 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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