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308227 (2005 EX239)
Classification: Main-belt Asteroid          SPK-ID: 2308227
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .146700603345051 6.8651e-08  
a 2.521318571499187 1.6058e-08 au
q 2.151439615835174 1.7531e-07 au
i 4.871250009969632 7.2438e-06 deg
node 12.1042377128277 5.1596e-05 deg
peri 172.3240053423254 5.3965e-05 deg
M 282.1329911477598 1.6652e-05 deg
tp 2459316.794035608875
(2021-Apr-12.29403561)
6.9348e-05 TDB
period 1462.31188917589
4.00
1.397e-05
3.825e-08
d
yr
n .2461855112201022 2.352e-09 deg/d
Q 2.8911975271632 1.8414e-08 au
  Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      6848 days (18.75 yr)  
   first obs. used      2001-02-27  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57607  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 21:22:27  

Additional Information
 Earth MOID = 1.15342 au 
 Jupiter MOID = 2.0659 au 
 T_jup = 3.436 
[ 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 17.3   n/a MPO413269  

308227 (2005 EX239)          Discovered 2005-Mar-11 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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