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180811 (2005 ET206)
Classification: Main-belt Asteroid          SPK-ID: 2180811
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2011005764148668 4.7793e-08  
a 2.182149088063969 1.3492e-08 au
q 1.743317648631129 1.0758e-07 au
i 4.85971534374326 5.6157e-06 deg
node 346.3365282613659 5.9589e-05 deg
peri 346.2874630577782 6.1246e-05 deg
M 192.9567930631015 1.8529e-05 deg
tp 2459746.825376461229
(2022-Jun-16.32537646)
6.421e-05 TDB
period 1177.402775800026
3.22
1.092e-05
2.99e-08
d
yr
n .3057577299793487 2.8357e-09 deg/d
Q 2.620980527496809 1.6205e-08 au
  Orbit Determination Parameters
   # obs. used (total)      440  
   data-arc span      7358 days (20.15 yr)  
   first obs. used      2001-01-19  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58008  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:28:04  

Additional Information
 Earth MOID = .73166 au 
 Jupiter MOID = 2.7422 au 
 T_jup = 3.649 
[ 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 16.4   n/a MPO433177  

180811 (2005 ET206)          Discovered 2005-Mar-13 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Alternate Designations
 2005 ET206 = 2006 VA21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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