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JPL Small-Body Database Browser
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312904 (2011 UO309)
Classification: Main-belt Asteroid          SPK-ID: 2312904
[ 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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02239361358536104 9.8615e-08  
a 2.854451974494554 5.454e-08 au
q 2.790530479979752 2.4674e-07 au
i 3.144298586412603 7.7435e-06 deg
node 114.3411673697104 0.00018712 deg
peri 1.904928166699234 0.00041978 deg
M 144.0599518384689 0.00037033 deg
tp 2457895.606830699800
(2017-May-22.10683070)		 0.0018142 TDB
period 1761.499554245368
4.82		 5.0485e-05
1.382e-07		 d
yr
n .2043713261989585 5.8574e-09 deg/d
Q 2.918373469009357 5.5761e-08 au
   Orbit Determination Parameters
   # obs. used (total)      119  
   data-arc span      6017 days (16.47 yr)  
   first obs. used      2001-10-23  
   last obs. used      2018-04-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58063  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:23:11  

Additional Information
 Earth MOID = 1.80704 au 
 Jupiter MOID = 2.0825 au 
 T_jup = 3.302 
[ 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 MPO440463  

312904 (2011 UO309)          Discovered 2006-Sep-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

Alternate Designations
 2011 UO309 = 2008 CS139 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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