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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02381452469850585 9.8918e-08  
a 2.850698593642727 5.3383e-08 au
q 2.782810561576426 2.4843e-07 au
i 3.146300845776032 7.7527e-06 deg
node 114.3346690524472 0.00018698 deg
peri 3.034205931610175 0.00039851 deg
M 224.7192590089715 0.00034605 deg
tp 2459661.130851995954
(2022-Mar-22.63085200)		 0.0016884 TDB
period 1758.026345629755
4.81		 4.9382e-05
1.352e-07		 d
yr
n .204775088208955 5.752e-09 deg/d
Q 2.918586625709027 5.4654e-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 = 1.79891 au 
 Jupiter MOID = 2.08182 au 
 T_jup = 3.303 
[ 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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