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266517 (2008 EM140)
Classification: Main-belt Asteroid          SPK-ID: 2266517
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1930214909792921 6.2847e-08  
a 2.367507526768711 2.393e-08 au
q 1.910527694047118 1.4983e-07 au
i 3.062406366129083 8.5236e-06 deg
node 23.67948850000727 0.00012056 deg
peri 283.6096746414104 0.00012404 deg
M 3.254933656633847 3.9061e-05 deg
tp 2458988.469737057563
(2020-May-18.96973706)
0.00014426 TDB
period 1330.563113152995
3.64
2.0173e-05
5.523e-08
d
yr
n .270562137520045 4.1021e-09 deg/d
Q 2.824487359490304 2.8549e-08 au
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      10045 days (27.50 yr)  
   first obs. used      1991-10-10  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66588  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:30:24  

Additional Information
 Earth MOID = .89863 au 
 Jupiter MOID = 2.43387 au 
 T_jup = 3.520 
[ 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 17.1   n/a MPO470831  

266517 (2008 EM140)          Discovered 2008-Mar-12 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2008 EM140 = 2004 CG116 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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