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266862 (2009 UC121)
Classification: Main-belt Asteroid          SPK-ID: 2266862
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1077296625430826 7.2071e-08  
a 3.005737501646993 2.9405e-08 au
q 2.681930414901474 2.2552e-07 au
i 1.624062024454966 7.3623e-06 deg
node 359.4746354795747 0.00015224 deg
peri 358.7179445704949 0.00015395 deg
M 45.18519532092496 2.0544e-05 deg
tp 2458761.598616437286
(2019-Oct-05.09861644)
0.00010948 TDB
period 1903.377809296506
5.21
2.7931e-05
7.647e-08
d
yr
n .1891374367409784 2.7755e-09 deg/d
Q 3.329544588392512 3.2573e-08 au
  Orbit Determination Parameters
   # obs. used (total)      318  
   data-arc span      9562 days (26.18 yr)  
   first obs. used      1993-09-20  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59093  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 17:22:40  

Additional Information
 Earth MOID = 1.678 au 
 Jupiter MOID = 2.10479 au 
 T_jup = 3.242 
[ 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 16.0   n/a MPO494442  

266862 (2009 UC121)          Discovered 2009-Oct-24 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2009 UC121 = 2006 BK245 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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