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90508 (2004 EE18)
Classification: Main-belt Asteroid          SPK-ID: 2090508
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1431353563109594 4.6851e-08  
a 2.654680970936625 1.5347e-08 au
q 2.274702264269687 1.319e-07 au
i 13.50427129706685 3.8509e-06 deg
node 108.7771959808514 1.7668e-05 deg
peri 94.4118049772204 2.2294e-05 deg
M 345.2261729973491 1.351e-05 deg
tp 2459461.334690274145
(2021-Sep-03.83469027)
5.941e-05 TDB
period 1579.853919671863
4.33
1.37e-05
3.751e-08
d
yr
n .2278691691158208 1.9761e-09 deg/d
Q 3.034659677603562 1.7544e-08 au
  Orbit Determination Parameters
   # obs. used (total)      721  
   data-arc span      7650 days (20.94 yr)  
   first obs. used      2000-05-28  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52637  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:38:18  

Additional Information
 Earth MOID = 1.31928 au 
 Jupiter MOID = 2.09017 au 
 T_jup = 3.335 
[ 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 15.62   n/a MPCxxxxx  

90508 (2004 EE18)          Discovered 2004-Mar-12 by NEAT at Palomar
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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