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442439 (2011 UU159)
Classification: Main-belt Asteroid          SPK-ID: 2442439
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2922071669961944 1.5483e-07  
a 2.630935194800273 3.089e-08 au
q 1.862157074977104 4.1953e-07 au
i 6.233618839776558 1.1268e-05 deg
node 55.95963805783752 0.00014643 deg
peri 292.9062375030242 0.00014764 deg
M 27.90140994277273 2.3296e-05 deg
tp 2458879.694334496525
(2020-Jan-31.19433450)
9.9372e-05 TDB
period 1558.704010673706
4.27
2.7452e-05
7.516e-08
d
yr
n .2309611045681471 4.0677e-09 deg/d
Q 3.399713314623442 3.9917e-08 au
  Orbit Determination Parameters
   # obs. used (total)      70  
   data-arc span      8952 days (24.51 yr)  
   first obs. used      1994-11-28  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53533  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:11  

Additional Information
 Earth MOID = .867036 au 
 Jupiter MOID = 2.0642 au 
 T_jup = 3.330 
[ 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 17.0   n/a MPO440832  

442439 (2011 UU159)          Discovered 1994-Nov-28 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 UU159 = 1994 WM5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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