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JPL Small-Body Database Browser
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442478 (2011 UU320)
Classification: Main-belt Asteroid          SPK-ID: 2442478
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .109452370585226 7.6364e-08  
a 2.700041118577281 6.0044e-08 au
q 2.404515217471412 2.1509e-07 au
i 13.78020252836406 8.8322e-06 deg
node 354.6904012273531 3.0947e-05 deg
peri 21.30969036461701 5.9415e-05 deg
M 354.5526044665899 5.1666e-05 deg
tp 2459025.021125694715
(2020-Jun-24.52112569)
0.00023297 TDB
period 1620.518502090726
4.44
5.4056e-05
1.48e-07
d
yr
n .2221511198641317 7.4103e-09 deg/d
Q 2.99556701968315 6.6615e-08 au
  Orbit Determination Parameters
   # obs. used (total)      90  
   data-arc span      3331 days (9.12 yr)  
   first obs. used      2009-03-03  
   last obs. used      2018-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61789  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:31:10  

Additional Information
 Earth MOID = 1.40866 au 
 Jupiter MOID = 2.47946 au 
 T_jup = 3.318 
[ 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 16.9   n/a MPO440832  

442478 (2011 UU320)          Discovered 2009-Mar-03 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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