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JPL Small-Body Database Browser
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312871 (2011 UL161)
Classification: Main-belt Asteroid          SPK-ID: 2312871
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1195163069033477 1.0058e-07  
a 3.067163541015524 4.9846e-08 au
q 2.700587481924754 3.0952e-07 au
i 3.201790897980544 8.8532e-06 deg
node 348.6374666808055 0.00013683 deg
peri 35.01540611472094 0.00014028 deg
M 166.0056428647004 3.0922e-05 deg
tp 2457695.759197780984
(2016-Nov-03.25919778)
0.00016285 TDB
period 1962.021791417697
5.37
4.7828e-05
1.309e-07
d
yr
n .1834842006213779 4.4728e-09 deg/d
Q 3.433739600106294 5.5803e-08 au
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      4965 days (13.59 yr)  
   first obs. used      2005-08-29  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52463  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:24:08  

Additional Information
 Earth MOID = 1.70396 au 
 Jupiter MOID = 2.03178 au 
 T_jup = 3.219 
[ 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 16.3   n/a MPO434005  

312871 (2011 UL161)          Discovered 2005-Aug-29 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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