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JPL Small-Body Database Browser
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442421 (2011 UN125)
Classification: Main-belt Asteroid          SPK-ID: 2442421
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09519229217518148 8.8456e-08  
a 2.762533117088101 4.5442e-08 au
q 2.499561257462636 2.4674e-07 au
i 12.42418244678659 1.0893e-05 deg
node 17.98170597831279 4.5832e-05 deg
peri 203.0107277091279 7.4026e-05 deg
M 34.79510343490774 5.7839e-05 deg
tp 2458438.402880471450
(2018-Nov-15.90288047)
0.00026853 TDB
period 1677.102731981945
4.59
4.1381e-05
1.133e-07
d
yr
n .2146559021906569 5.2965e-09 deg/d
Q 3.025504976713567 4.9768e-08 au
  Orbit Determination Parameters
   # obs. used (total)      71  
   data-arc span      6545 days (17.92 yr)  
   first obs. used      2000-03-27  
   last obs. used      2018-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50125  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Mar-06 02:09:41  

Additional Information
 Earth MOID = 1.49763 au 
 Jupiter MOID = 1.95557 au 
 T_jup = 3.300 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO343049  

442421 (2011 UN125)          Discovered 2000-Mar-27 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2011 UN125 = 2009 DS63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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