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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1389864604620867 4.397e-08  
a 3.124884795524766 4.0006e-08 au
q 2.690568118442987 1.4535e-07 au
i 4.24609934621595 7.4751e-06 deg
node 23.2431502114592 8.8816e-05 deg
peri 53.02418060316975 9.42e-05 deg
M 293.366358961099 3.4298e-05 deg
tp 2459373.956899598253
(2021-Jun-08.45689960)		 0.00019595 TDB
period 2017.666778510299
5.52		 3.8746e-05
1.061e-07		 d
yr
n .178423912131714 3.4263e-09 deg/d
Q 3.559201472606545 4.5566e-08 au
   Orbit Determination Parameters
   # obs. used (total)      223  
   data-arc span      8912 days (24.40 yr)  
   first obs. used      1995-03-27  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6497  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:36:52  

Additional Information
 Earth MOID = 1.70842 au 
 Jupiter MOID = 1.72073 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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