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JPL Small-Body Database Browser
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243209 (2007 UK31)
Classification: Main-belt Asteroid          SPK-ID: 2243209
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0591737772670867 7.3529e-08  
a 2.966375872237676 3.1854e-08 au
q 2.790844207083423 2.167e-07 au
i 8.4371884207811 5.5264e-06 deg
node 120.6059713198211 4.5226e-05 deg
peri 263.0111809604127 6.7119e-05 deg
M 99.11782098737227 4.7576e-05 deg
tp 2458086.708468166250
(2017-Nov-29.20846817)
0.0002463 TDB
period 1866.111962688472
5.11
3.0059e-05
8.23e-08
d
yr
n .1929144698699401 3.1074e-09 deg/d
Q 3.141907537391928 3.3739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      286  
   data-arc span      9574 days (26.21 yr)  
   first obs. used      1992-11-18  
   last obs. used      2019-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53591  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:36:11  

Additional Information
 Earth MOID = 1.80874 au 
 Jupiter MOID = 2.17031 au 
 T_jup = 3.245 
[ 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 15.7   n/a MPO338725  
diameter diameter 4.521 km 0.351 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243209 (2007 UK31)          Discovered 2007-Oct-19 by CSS at Catalina
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ show close-approach data ]
Alternate Designations
 2007 UK31 = 2004 BQ146 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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