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243354 (2008 UK304)
Classification: Main-belt Asteroid          SPK-ID: 2243354
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2049203025382917 6.21e-08  
a 3.001936754331298 2.9652e-08 au
q 2.386778966432912 1.8445e-07 au
i 15.66366431629881 6.7998e-06 deg
node 46.11609170873566 2.3175e-05 deg
peri 24.09335537346504 3.2718e-05 deg
M 76.46332017673564 2.0102e-05 deg
tp 2458596.992710048239
(2019-Apr-23.49271005)
0.00010447 TDB
period 1899.768726323641
5.20
2.8148e-05
7.707e-08
d
yr
n .1894967503211078 2.8077e-09 deg/d
Q 3.617094542229686 3.5729e-08 au
  Orbit Determination Parameters
   # obs. used (total)      423  
   data-arc span      7741 days (21.19 yr)  
   first obs. used      1999-02-18  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56818  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 12:47:30  

Additional Information
 Earth MOID = 1.40835 au 
 Jupiter MOID = 1.79871 au 
 T_jup = 3.165 
[ 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 15.5   n/a MPO281336  
diameter diameter 4.906 km 1.637 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.023   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

243354 (2008 UK304)          Discovered 2008-Oct-29 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ show close-approach data ]
Alternate Designations
 2008 UK304 = 2003 XD43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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