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266086 (2006 SA21)
Classification: Main-belt Asteroid          SPK-ID: 2266086
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1293071819239172 5.4513e-08  
a 2.234519697198327 1.642e-08 au
q 1.945580252200126 1.2712e-07 au
i 2.359442772695613 4.8803e-06 deg
node 157.0816451612627 0.00014021 deg
peri 256.389828623995 0.00014171 deg
M 349.2964322972362 2.4061e-05 deg
tp 2459036.774444251686
(2020-Jul-06.27444425)
8.1805e-05 TDB
period 1220.04179290938
3.34
1.3448e-05
3.682e-08
d
yr
n .2950718590889612 3.2524e-09 deg/d
Q 2.523459142196527 1.8543e-08 au
  Orbit Determination Parameters
   # obs. used (total)      223  
   data-arc span      5684 days (15.56 yr)  
   first obs. used      2003-12-14  
   last obs. used      2019-07-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59859  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:36:13  

Additional Information
 Earth MOID = .958272 au 
 Jupiter MOID = 2.79265 au 
 T_jup = 3.627 
[ 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 17.6   n/a MPO440309  

266086 (2006 SA21)          Discovered 2006-Sep-16 by LONEOS at Anderson Mesa
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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