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20811 (2000 ST266)
Classification: Main-belt Asteroid          SPK-ID: 2020811
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0949530130936266 2.2692e-08  
a 2.557671707090186 9.9137e-09 au
q 2.314813071997653 6.0567e-08 au
i 14.40285364119757 5.2403e-07 deg
node 114.1522168013274 4.059e-06 deg
peri 30.15035936552427 1.5584e-05 deg
M 251.5977811846884 1.7101e-05 deg
tp 2459650.384775718550
(2022-Mar-11.88477572)
7.1951e-05 TDB
period 1494.051699574636
4.09
8.6866e-06
2.378e-08
d
yr
n .2409555172036509 1.4009e-09 deg/d
Q 2.800530342182718 1.0855e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1877  
   data-arc span      16087 days (44.04 yr)  
   first obs. used      1977-02-12  
   last obs. used      2021-02-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49352  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:32:02  

Additional Information
 Earth MOID = 1.33829 au 
 Jupiter MOID = 2.26882 au 
 T_jup = 3.386 
[ 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 13.84   n/a E2021B10  
diameter diameter 4.475 km 0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.320   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20811 (2000 ST266)          Discovered 2000-Sep-26 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 ST266 = 1977 CD3 = 1984 YF7 = 1998 HK120 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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