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442444 (2011 UK189)
Classification: Main-belt Asteroid          SPK-ID: 2442444
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2690040151160011 1.0773e-07  
a 2.600574780554572 3.7877e-08 au
q 1.901009722975978 3.042e-07 au
i 5.560210654667355 5.3708e-06 deg
node 76.33263795486565 7.0816e-05 deg
peri 286.4461591399056 7.4406e-05 deg
M 85.77819768930073 2.324e-05 deg
tp 2458835.513448146217
(2019-Dec-18.01344815)
9.2349e-05 TDB
period 1531.801345876856
4.19
3.3466e-05
9.162e-08
d
yr
n .2350174198299347 5.1345e-09 deg/d
Q 3.300139838133165 4.8067e-08 au
  Orbit Determination Parameters
   # obs. used (total)      127  
   data-arc span      4826 days (13.21 yr)  
   first obs. used      2007-11-02  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52698  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 20:42:19  

Additional Information
 Earth MOID = .906342 au 
 Jupiter MOID = 2.17961 au 
 T_jup = 3.356 
[ 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 17.5   n/a MPO495192  

442444 (2011 UK189)          Discovered 2007-Nov-02 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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