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90385 (2003 WU121)
Classification: Main-belt Asteroid          SPK-ID: 2090385
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1851112570795808 4.4582e-08  
a 2.264443732262736 1.0531e-08 au
q 1.845269706397603 1.0361e-07 au
i 4.971553792675815 4.7519e-06 deg
node 44.54938750000123 5.0488e-05 deg
peri 316.0077082408576 5.2151e-05 deg
M 2.487703329538534 1.5985e-05 deg
tp 2458991.899240298456
(2020-May-22.39924030)
5.5221e-05 TDB
period 1244.631325524693
3.41
8.6828e-06
2.377e-08
d
yr
n .2892422781085288 2.0178e-09 deg/d
Q 2.683617758127869 1.2481e-08 au
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      8298 days (22.72 yr)  
   first obs. used      1996-11-08  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57655  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:10:24  

Additional Information
 Earth MOID = .846425 au 
 Jupiter MOID = 2.77312 au 
 T_jup = 3.590 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO436404  

90385 (2003 WU121)          Discovered 2003-Nov-20 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 2003 WU121 = 2002 JQ109 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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