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JPL Small-Body Database Browser
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390021 (2012 UN29)
Classification: Main-belt Asteroid          SPK-ID: 2390021
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09951484746426896 6.1432e-08  
a 2.927383759332598 4.4748e-08 au
q 2.636065611053237 1.7004e-07 au
i 10.75511550199345 5.0817e-06 deg
node 111.883026052052 4.0537e-05 deg
peri 321.5070138024937 5.3703e-05 deg
M 72.62184260939149 3.5479e-05 deg
tp 2458231.452150742351
(2018-Apr-22.95215074)
0.0001779 TDB
period 1829.438925797406
5.01
4.1948e-05
1.148e-07
d
yr
n .1967816443192194 4.5121e-09 deg/d
Q 3.21870190761196 4.9202e-08 au
  Orbit Determination Parameters
   # obs. used (total)      139  
   data-arc span      4130 days (11.31 yr)  
   first obs. used      2007-10-19  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63222  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:50:02  

Additional Information
 Earth MOID = 1.66081 au 
 Jupiter MOID = 2.00955 au 
 T_jup = 3.244 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO427944  

390021 (2012 UN29)          Discovered 2008-Dec-03 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-03-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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