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385485 (2003 WJ122)
Classification: Main-belt Asteroid          SPK-ID: 2385485
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .134147111736779 5.645e-08  
a 2.810746790205339 2.9367e-08 au
q 2.433693226475871 1.6041e-07 au
i 9.720090084416974 7.904e-06 deg
node 43.19357538542636 3.3482e-05 deg
peri 45.00336381193767 4.756e-05 deg
M 205.6710669968677 3.163e-05 deg
tp 2459938.363223385265
(2022-Dec-24.86322339)
0.00015498 TDB
period 1721.198710116812
4.71
2.6975e-05
7.385e-08
d
yr
n .2091565592537354 3.278e-09 deg/d
Q 3.187800353934808 3.3307e-08 au
  Orbit Determination Parameters
   # obs. used (total)      212  
   data-arc span      5697 days (15.60 yr)  
   first obs. used      2003-10-23  
   last obs. used      2019-05-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49177  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:05:33  

Additional Information
 Earth MOID = 1.46018 au 
 Jupiter MOID = 2.09899 au 
 T_jup = 3.287 
[ 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 16.51   n/a MPCxxxxx  

385485 (2003 WJ122)          Discovered 2003-Oct-23 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-02-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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