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266503 (2008 ED18)
Classification: Main-belt Asteroid          SPK-ID: 2266503
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06499351736593852 3.6898e-08  
a 2.275750621810742 1.5089e-08 au
q 2.127841584251541 8.2124e-08 au
i 6.932444683188638 4.9157e-06 deg
node 322.7052901202197 3.1901e-05 deg
peri 253.5447509920276 4.9608e-05 deg
M 177.5585160264666 3.7912e-05 deg
tp 2458382.021740786935
(2018-Sep-20.52174079)
0.00013101 TDB
period 1253.965049378512
3.43
1.2471e-05
3.414e-08
d
yr
n .2870893412686603 2.8553e-09 deg/d
Q 2.423659659369945 1.607e-08 au
  Orbit Determination Parameters
   # obs. used (total)      287  
   data-arc span      6192 days (16.95 yr)  
   first obs. used      2002-09-14  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54449  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:36:36  

Additional Information
 Earth MOID = 1.13378 au 
 Jupiter MOID = 2.57505 au 
 T_jup = 3.597 
[ 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 16.8   n/a MPO437227  

266503 (2008 ED18)          Discovered 2008-Mar-01 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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