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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2926506563528039 1.5467e-07  
a 2.632345314866499 3.1582e-08 au
q 1.86198773072359 4.199e-07 au
i 6.235080737101158 1.1272e-05 deg
node 55.97100721455124 0.00014635 deg
peri 292.851395204654 0.00014755 deg
M 295.6039154950429 2.2074e-05 deg
tp 2458879.542065403536
(2020-Jan-31.04206540)
9.9149e-05 TDB
period 1559.957322211728
4.27
2.8074e-05
7.686e-08
d
yr
n .2307755442242403 4.1531e-09 deg/d
Q 3.402702899009408 4.0824e-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 = .865988 au 
 Jupiter MOID = 2.05766 au 
 T_jup = 3.329 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457150.5 (2015-May-08.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2943978811507711 1.5407e-07  
q 1.855452626687017 4.1788e-07 au
tp 2457322.272004382481
(2015-Oct-26.77200438)
8.1371e-05 TDB
node 55.97705502678929 0.00014643 deg
peri 293.0763232930646 0.00014761 deg
i 6.237385720294763 1.1281e-05 deg
  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
 Jupiter MOID = 2.05766 au 
 T_jup = 3.329 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.373818527219935E-14 -6.432228475086471E-14 -5.094422046323529E-12 -1.103902073362497E-13 -1.25934875022618E-12 -5.118545250992572E-14
q -6.432228475086471E-14 1.746265051961323E-13 1.427208896036894E-11 2.950563793995532E-13 3.495363578619276E-12 1.404257162245056E-13
tp -5.094422046323529E-12 1.427208896036894E-11 6.621161747192013E-9 6.475196686194021E-13 1.829739894837607E-9 2.336251714797843E-11
node -1.103902073362497E-13 2.950563793995532E-13 6.475196686194021E-13 2.144245286791749E-8 -2.131676905734975E-8 -5.016332977630927E-10
peri -1.25934875022618E-12 3.495363578619276E-12 1.829739894837607E-9 -2.131676905734975E-8 2.178905642153774E-8 5.039433694816829E-10
i -5.118545250992572E-14 1.404257162245056E-13 2.336251714797843E-11 -5.016332977630927E-10 5.039433694816829E-10 1.272676469500629E-10

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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