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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .185897493153643 6.4497e-08  
a 3.057752488473789 3.7445e-08 au
q 2.489323966182198 2.1111e-07 au
i 12.20089726138702 6.3926e-06 deg
node 151.7001130329561 3.0316e-05 deg
peri 197.3979268499158 3.3932e-05 deg
M 254.6025603218282 1.765e-05 deg
tp 2459572.280683693611
(2021-Dec-23.78068369)		 0.00010087 TDB
period 1952.99854302182
5.35		 3.5874e-05
9.822e-08		 d
yr
n .1843319347504387 3.386e-09 deg/d
Q 3.62618101076538 4.4406e-08 au
   Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      7152 days (19.58 yr)  
   first obs. used      2000-09-23  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61067  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 19:59:56  

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

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