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JPL Small-Body Database Browser
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305859 (2009 EG18)
Classification: Main-belt Asteroid          SPK-ID: 2305859
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04847716562328849 9.421e-08  
a 2.771845250786439 4.7506e-08 au
q 2.637474049481939 2.6451e-07 au
i 2.520274932975027 1.1708e-05 deg
node 220.8886247480196 0.00021967 deg
peri 43.71606826699205 0.00025665 deg
M 339.625912150261 0.00012677 deg
tp 2458695.895430263625
(2019-Jul-31.39543026)
0.00059275 TDB
period 1685.589811341908
4.61
4.3334e-05
1.186e-07
d
yr
n .2135750925745107 5.4907e-09 deg/d
Q 2.906216452090939 4.9809e-08 au
  Orbit Determination Parameters
   # obs. used (total)      82  
   data-arc span      5603 days (15.34 yr)  
   first obs. used      2004-01-28  
   last obs. used      2019-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67497  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:55:05  

Additional Information
 Earth MOID = 1.62205 au 
 Jupiter MOID = 2.11719 au 
 T_jup = 3.334 
[ 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 17.2   n/a MPO437358  

305859 (2009 EG18)          Discovered 2009-Mar-15 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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