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266504 (2008 EX20)
Classification: Main-belt Asteroid          SPK-ID: 2266504
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1537343675824442 4.8744e-08  
a 2.201180318697865 1.4304e-08 au
q 1.862783254467926 1.052e-07 au
i 2.15320868399574 4.6708e-06 deg
node 203.9144358345414 0.00015632 deg
peri 40.01704679894792 0.0001577 deg
M 221.1483594590258 1.6898e-05 deg
tp 2459460.576841360293
(2021-Sep-03.07684136)
5.5746e-05 TDB
period 1192.839078057777
3.27
1.1627e-05
3.183e-08
d
yr
n .3018009777028472 2.9418e-09 deg/d
Q 2.539577382927805 1.6503e-08 au
  Orbit Determination Parameters
   # obs. used (total)      192  
   data-arc span      7370 days (20.18 yr)  
   first obs. used      1999-09-15  
   last obs. used      2019-11-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56112  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 17:22:04  

Additional Information
 Earth MOID = .850342 au 
 Jupiter MOID = 2.47348 au 
 T_jup = 3.648 
[ 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 17.8   n/a MPO450146  

266504 (2008 EX20)          Discovered 2008-Mar-02 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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