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266768 (2009 SK138)
Classification: Main-belt Asteroid          SPK-ID: 2266768
[ 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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1391321469276378 4.3117e-08  
a 3.125114139807668 2.7221e-08 au
q 2.690310300142309 1.453e-07 au
i 4.246042492532164 6.995e-06 deg
node 23.24307972873713 6.4005e-05 deg
peri 53.03866104149637 6.9621e-05 deg
M 329.0503101176425 2.5709e-05 deg
tp 2459373.980655172273
(2021-Jun-08.48065517)		 0.00014427 TDB
period 2017.888906137919
5.52		 2.6365e-05
7.218e-08		 d
yr
n .1784042713674519 2.3309e-09 deg/d
Q 3.559917979473027 3.1008e-08 au
   Orbit Determination Parameters
   # obs. used (total)      292  
   data-arc span      9421 days (25.79 yr)  
   first obs. used      1995-03-27  
   last obs. used      2021-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60075  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 14:15:01  

Additional Information
 Earth MOID = 1.70771 au 
 Jupiter MOID = 1.72024 au 
 T_jup = 3.196 
[ 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 15.8   n/a MPO440311  
diameter diameter 2.969 km 0.317 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.105   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

266768 (2009 SK138)          Discovered 2009-Sep-18 by Spacewatch at Kitt Peak
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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