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442390 (2011 UJ30)
Classification: Main-belt Asteroid          SPK-ID: 2442390
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 .1234819845896931 9.9392e-08  
a 2.805906964965701 6.8648e-08 au
q 2.459428004357694 3.0312e-07 au
i 9.792865431932611 1.0167e-05 deg
node 223.2780361058209 5.8116e-05 deg
peri 186.2297073848428 7.4457e-05 deg
M 298.0445792126938 5.4881e-05 deg
tp 2459295.950777843105
(2021-Mar-22.45077784)
0.00026884 TDB
period 1716.755025983294
4.70
6.3002e-05
1.725e-07
d
yr
n .2096979444075343 7.6955e-09 deg/d
Q 3.152385925573708 7.7124e-08 au
  Orbit Determination Parameters
   # obs. used (total)      65  
   data-arc span      5130 days (14.05 yr)  
   first obs. used      2001-10-15  
   last obs. used      2015-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60039  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:29:07  

Additional Information
 Earth MOID = 1.46978 au 
 Jupiter MOID = 2.22695 au 
 T_jup = 3.291 
[ 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 MPO260818  

442390 (2011 UJ30)          Discovered 2011-Oct-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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