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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1383200484805966 4.3901e-08  
a 3.127681848754354 4.0804e-08 au
q 2.69506074380277 1.4527e-07 au
i 4.245250919432929 7.4711e-06 deg
node 23.28567853096101 8.8807e-05 deg
peri 52.66798872356902 9.4272e-05 deg
M 222.3212019641565 3.3807e-05 deg
tp 2459373.174974597901
(2021-Jun-07.67497460)
0.00019706 TDB
period 2020.376374747454
5.53
3.9537e-05
1.082e-07
d
yr
n .1781846216871348 3.4869e-09 deg/d
Q 3.560302953705939 4.6448e-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 = 1.71268 au 
 Jupiter MOID = 1.72126 au 
 T_jup = 3.195 
[ 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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