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305504 (2008 ED109)
Classification: Main-belt Asteroid          SPK-ID: 2305504
[ 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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1858974972150691 6.368e-08  
a 3.057752493767497 3.6051e-08 au
q 2.489323958072983 2.0984e-07 au
i 12.20089915083208 5.7248e-06 deg
node 151.7001128311636 3.0304e-05 deg
peri 197.3979253851118 3.3786e-05 deg
M 254.6025602708841 1.7646e-05 deg
tp 2459572.280685454818
(2021-Dec-23.78068545)		 0.00010077 TDB
period 1952.998548093489
5.35		 3.4539e-05
9.456e-08		 d
yr
n .184331934271754 3.26e-09 deg/d
Q 3.626181029462011 4.2753e-08 au
   Orbit Determination Parameters
   # obs. used (total)      221  
   data-arc span      7204 days (19.72 yr)  
   first obs. used      2000-09-23  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6044  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:11:45  

Additional Information
 Earth MOID = 1.48517 au 
 Jupiter MOID = 1.80114 au 
 T_jup = 3.174 
[ 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 15.7   n/a MPO471208  

305504 (2008 ED109)          Discovered 2008-Mar-07 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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