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JPL Small-Body Database Browser
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249304 (2008 UD42)
Classification: Main-belt Asteroid          SPK-ID: 2249304
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 .07225748399980327 1.3102e-07  
a 3.015097380594724 5.479e-08 au
q 2.797234029858552 4.2006e-07 au
i 15.221722822554 1.1136e-05 deg
node 228.5604062144798 2.9543e-05 deg
peri 161.3583882635328 6.4342e-05 deg
M 18.98304271530029 5.6356e-05 deg
tp 2458499.664428008313
(2019-Jan-16.16442801)
0.00029834 TDB
period 1912.275416614261
5.24
5.2124e-05
1.427e-07
d
yr
n .1882574010376551 5.1315e-09 deg/d
Q 3.232960731330896 5.8749e-08 au
  Orbit Determination Parameters
   # obs. used (total)      149  
   data-arc span      5473 days (14.98 yr)  
   first obs. used      2003-11-16  
   last obs. used      2018-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53355  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:21:17  

Additional Information
 Earth MOID = 1.80734 au 
 Jupiter MOID = 2.17819 au 
 T_jup = 3.191 
[ 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 16.0   n/a MPO460090  
diameter diameter 4.314 km 1.223 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249304 (2008 UD42)          Discovered 2008-Oct-20 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2008 UD42 = 2003 XO27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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