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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1389865159849192 4.3166e-08  
a 3.124884784295831 2.8213e-08 au
q 2.690567935272268 1.4533e-07 au
i 4.246102193315381 7.1847e-06 deg
node 23.24320558097432 6.8914e-05 deg
peri 53.02413694712202 7.4219e-05 deg
M 293.3663538038644 2.6416e-05 deg
tp 2459373.956926489679
(2021-Jun-08.45692649)
0.00014864 TDB
period 2017.666767634899
5.52
2.7325e-05
7.481e-08
d
yr
n .1784239130934344 2.4163e-09 deg/d
Q 3.559201633319395 3.2134e-08 au
  Orbit Determination Parameters
   # obs. used (total)      272  
   data-arc span      9343 days (25.58 yr)  
   first obs. used      1995-03-27  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60066  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:23:35  

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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