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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1433985988485267 5.0995e-08  
a 2.654875849965709 1.9062e-08 au
q 2.274170372963835 1.3897e-07 au
i 13.50499945460424 4.3129e-06 deg
node 108.7790347266892 2.3274e-05 deg
peri 94.43184400038453 2.7106e-05 deg
M 255.0029634590788 1.6412e-05 deg
tp 2459461.328460664151
(2021-Sep-03.82846066)
7.4394e-05 TDB
period 1580.027887496022
4.33
1.7017e-05
4.659e-08
d
yr
n .2278440797462864 2.4538e-09 deg/d
Q 3.035581326967582 2.1795e-08 au
  Orbit Determination Parameters
   # obs. used (total)      492  
   data-arc span      7177 days (19.65 yr)  
   first obs. used      2000-05-28  
   last obs. used      2020-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60483  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:12:56  

Additional Information
 Earth MOID = 1.31814 au 
 Jupiter MOID = 2.09143 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 15.5   n/a MPO412703  

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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