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JPL Small-Body Database Browser
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379257 (2009 UR2)
Classification: Main-belt Asteroid          SPK-ID: 2379257
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 .08902351894479445 6.8976e-08  
a 2.444987350343034 3.4349e-08 au
q 2.227325972639989 1.7396e-07 au
i 7.16838145048067 7.8245e-06 deg
node 80.87756632162161 5.4381e-05 deg
peri 4.545354929108345 7.0548e-05 deg
M 233.4206523133959 4.9927e-05 deg
tp 2459491.491195273331
(2021-Oct-03.99119527)
0.00019987 TDB
period 1396.411290853141
3.82
2.9426e-05
8.056e-08
d
yr
n .2578037017876425 5.4326e-09 deg/d
Q 2.662648728046081 3.7406e-08 au
  Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      6000 days (16.43 yr)  
   first obs. used      2003-01-28  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63654  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:57:19  

Additional Information
 Earth MOID = 1.24355 au 
 Jupiter MOID = 2.50732 au 
 T_jup = 3.483 
[ 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 16.7   n/a MPO434346  

379257 (2009 UR2)          Discovered 2009-Oct-16 by Kugel, F. at Dauban
Reference: Last Updated: 2013-11-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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