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JPL Small-Body Database Browser
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461426 (2001 UN209)
Classification: Main-belt Asteroid          SPK-ID: 2461426
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1779389229020039 1.034e-07  
a 2.692382769048991 3.3859e-08 au
q 2.213303079084499 2.7251e-07 au
i 13.0191473315614 1.1404e-05 deg
node 222.2098931661424 4.7644e-05 deg
peri 173.1214684957526 6.0577e-05 deg
M 67.62537866640361 3.631e-05 deg
tp 2458697.382619108242
(2019-Aug-01.88261911)
0.00016025 TDB
period 1613.628777730529
4.42
3.0439e-05
8.334e-08
d
yr
n .2230996403685352 4.2084e-09 deg/d
Q 3.171462459013483 3.9883e-08 au
  Orbit Determination Parameters
   # obs. used (total)      60  
   data-arc span      6629 days (18.15 yr)  
   first obs. used      2001-10-12  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49943  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 23:32:46  

Additional Information
 Earth MOID = 1.22112 au 
 Jupiter MOID = 2.25626 au 
 T_jup = 3.312 
[ 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 17.3   n/a MPO495307  

461426 (2001 UN209)          Discovered 2001-Oct-20 by NEAT at Palomar
Reference: Last Updated: 2016-03-24

Alternate Designations
 2001 UN209 = 2010 VD155 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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