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243500 (2009 UK139)
Classification: Main-belt Asteroid          SPK-ID: 2243500
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06084976025375615 4.9015e-08  
a 3.171613450757202 4.8181e-08 au
q 2.978621532661038 1.5734e-07 au
i 9.227749126273158 1.0101e-05 deg
node 1.008996944255821 3.2448e-05 deg
peri 95.63311435052401 0.0001014 deg
M 203.3964543666868 9.9398e-05 deg
tp 2459497.965769981651
(2021-Oct-10.46576998)
0.00058105 TDB
period 2063.092989924399
5.65
4.7012e-05
1.287e-07
d
yr
n .1744952853594796 3.9762e-09 deg/d
Q 3.364605368853365 5.1113e-08 au
  Orbit Determination Parameters
   # obs. used (total)      316  
   data-arc span      7105 days (19.45 yr)  
   first obs. used      2000-03-11  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65252  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:15:51  

Additional Information
 Earth MOID = 2.01427 au 
 Jupiter MOID = 1.74998 au 
 T_jup = 3.179 
[ 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 15.4   n/a MPO407802  
diameter diameter 4.358 km 0.401 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.077   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243500 (2009 UK139)          Discovered 2009-Oct-27 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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