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216804 (2006 SD381)
Classification: Main-belt Asteroid          SPK-ID: 2216804
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07010624024106965 6.1026e-08  
a 3.12720510364544 4.0722e-08 au
q 2.907968511366173 1.8276e-07 au
i 15.11303924978473 6.2191e-06 deg
node 128.0776210941878 2.7432e-05 deg
peri 20.26564175383981 5.8112e-05 deg
M 107.9305252851554 5.0742e-05 deg
tp 2458594.915478654841
(2019-Apr-21.41547865)
0.00028318 TDB
period 2019.914450599287
5.53
3.9454e-05
1.08e-07
d
yr
n .1782253698384067 3.4812e-09 deg/d
Q 3.346441695924706 4.3577e-08 au
  Orbit Determination Parameters
   # obs. used (total)      221  
   data-arc span      6235 days (17.07 yr)  
   first obs. used      2003-05-30  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58043  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:56:20  

Additional Information
 Earth MOID = 1.9249 au 
 Jupiter MOID = 1.70184 au 
 T_jup = 3.157 
[ 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 15.77   n/a MPCxxxxx  

216804 (2006 SD381)          Discovered 2006-Sep-27 by Becker, A. C. at Apache Point
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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