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216404 (2008 EY108)
Classification: Main-belt Asteroid          SPK-ID: 2216404
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06385587830322767 6.595e-08  
a 2.863375346389388 2.6213e-08 au
q 2.680531998733885 1.8191e-07 au
i 2.385634164940913 8.1487e-06 deg
node 157.3121170979666 0.00013917 deg
peri 163.8069812727726 0.00015211 deg
M 58.59662091344646 5.999e-05 deg
tp 2458912.438033941914
(2020-Mar-03.93803394)
0.00029515 TDB
period 1769.766006372458
4.85
2.4303e-05
6.654e-08
d
yr
n .203416722156339 2.7933e-09 deg/d
Q 3.046218694044891 2.7887e-08 au
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      7929 days (21.71 yr)  
   first obs. used      1999-03-24  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53235  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:40  

Additional Information
 Earth MOID = 1.66583 au 
 Jupiter MOID = 2.14843 au 
 T_jup = 3.297 
[ 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 16.66   n/a MPCxxxxx  

216404 (2008 EY108)          Discovered 2008-Mar-07 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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