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442479 (2011 UH321)
Classification: Main-belt Asteroid          SPK-ID: 2442479
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05205807889178744 1.082e-07  
a 2.731264996585925 6.4788e-08 au
q 2.589080587919277 2.6667e-07 au
i 10.70871415108515 1.1544e-05 deg
node 312.2952474575701 3.6811e-05 deg
peri 164.6220859667837 0.00013423 deg
M 252.0859211104026 0.00014142 deg
tp 2459494.719403944979
(2021-Oct-07.21940394)
0.0006621 TDB
period 1648.709670238803
4.51
5.8664e-05
1.606e-07
d
yr
n .2183525738330004 7.7693e-09 deg/d
Q 2.873449405252573 6.8161e-08 au
  Orbit Determination Parameters
   # obs. used (total)      103  
   data-arc span      6176 days (16.91 yr)  
   first obs. used      2002-11-25  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5351  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:00:56  

Additional Information
 Earth MOID = 1.60624 au 
 Jupiter MOID = 2.18517 au 
 T_jup = 3.327 
[ 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 16.2   n/a MPO495192  

442479 (2011 UH321)          Discovered 2011-Oct-24 by CSS at Catalina
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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