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359721 (2011 UK9)
Classification: Main-belt Asteroid          SPK-ID: 2359721
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1282900168548433 1.1061e-07  
a 2.736542628427689 4.5633e-08 au
q 2.385471528502703 2.7391e-07 au
i 8.65417586636822 9.9977e-06 deg
node 218.7380186104128 4.152e-05 deg
peri 300.1151807050584 6.652e-05 deg
M 224.9906148525085 6.262e-05 deg
tp 2459620.602114337989
(2022-Feb-10.10211434)
0.000299 TDB
period 1653.490688205121
4.53
4.1359e-05
1.132e-07
d
yr
n .217721214015897 5.4459e-09 deg/d
Q 3.087613728352674 5.1487e-08 au
  Orbit Determination Parameters
   # obs. used (total)      129  
   data-arc span      9384 days (25.69 yr)  
   first obs. used      1993-12-13  
   last obs. used      2019-08-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65928  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:44:58  

Additional Information
 Earth MOID = 1.4072 au 
 Jupiter MOID = 1.95616 au 
 T_jup = 3.323 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO450334  

359721 (2011 UK9)          Discovered 2004-Mar-27 by CSS at Catalina
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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