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392246 (2009 WW122)
Classification: Jupiter Trojan          SPK-ID: 2392246
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0480346635977921 1.7268e-07  
a 5.243064116678732 4.4225e-07 au
q 4.991215295612414 1.2724e-06 au
i 5.920920245145684 9.4939e-06 deg
node 71.41363718079398 0.0001347 deg
peri 345.6052110898736 0.00021161 deg
M 323.7265605091165 0.0001752 deg
tp 2459442.337341353236
(2021-Aug-15.83734135)
0.0021663 TDB
period 4385.066459637539
12.01
0.00055482
1.519e-06
d
yr
n .08209681730337033 1.0387e-08 deg/d
Q 5.49491293774505 4.635e-07 au
  Orbit Determination Parameters
   # obs. used (total)      92  
   data-arc span      4012 days (10.98 yr)  
   first obs. used      2008-10-08  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49096  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 13:03:56  

Additional Information
 Earth MOID = 4.00368 au 
 Jupiter MOID = .0459096 au 
 T_jup = 2.987 
[ 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 14.0   n/a MPO455784  

392246 (2009 WW122)          Discovered 2008-Oct-08 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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