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JPL Small-Body Database Browser
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442450 (2011 UQ228)
Classification: Main-belt Asteroid          SPK-ID: 2442450
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05662469084237954 5.8433e-08  
a 2.868678181711893 5.1214e-08 au
q 2.706240166546177 1.7175e-07 au
i 2.349691074177292 5.8567e-06 deg
node 162.1715591486621 0.00015786 deg
peri 252.3202028743412 0.00016831 deg
M 253.7054291058569 5.6038e-05 deg
tp 2459524.498151124101
(2021-Nov-05.99815112)
0.00027791 TDB
period 1774.684565898846
4.86
4.7525e-05
1.301e-07
d
yr
n .2028529502749501 5.4323e-09 deg/d
Q 3.031116196877608 5.4114e-08 au
  Orbit Determination Parameters
   # obs. used (total)      172  
   data-arc span      4610 days (12.62 yr)  
   first obs. used      2006-09-26  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49125  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:13:27  

Additional Information
 Earth MOID = 1.7185 au 
 Jupiter MOID = 2.17315 au 
 T_jup = 3.295 
[ 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 17.7   n/a MPO437720  

442450 (2011 UQ228)          Discovered 2006-Sep-26 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 UQ228 = 2006 SZ237 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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