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180816 (2005 EO280)
Classification: Main-belt Asteroid          SPK-ID: 2180816
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02841984086123012 4.4305e-08  
a 2.738095162474783 2.2863e-08 au
q 2.660278933694346 1.236e-07 au
i 14.68601798495968 5.4524e-06 deg
node 32.8681212388689 2.1633e-05 deg
peri 37.61641279696427 0.0001114 deg
M 286.2131771396269 0.00011083 deg
tp 2459539.693517611536
(2021-Nov-21.19351761)
0.0005108 TDB
period 1654.898010329313
4.53
2.0728e-05
5.675e-08
d
yr
n .2175360643091006 2.7246e-09 deg/d
Q 2.815911391255221 2.3513e-08 au
  Orbit Determination Parameters
   # obs. used (total)      449  
   data-arc span      8144 days (22.30 yr)  
   first obs. used      1998-09-22  
   last obs. used      2021-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58161  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:50:18  

Additional Information
 Earth MOID = 1.67823 au 
 Jupiter MOID = 2.27027 au 
 T_jup = 3.303 
[ 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 15.61   n/a E2021B55  

180816 (2005 EO280)          Discovered 2005-Mar-10 by CSS at Catalina
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

Alternate Designations
 2005 EO280 = 1998 SH12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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