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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09515165425553138 8.8575e-08  
a 2.76017368893947 4.5181e-08 au
q 2.497538596404287 2.4656e-07 au
i 12.42543434757625 1.0896e-05 deg
node 17.93374355733663 4.5841e-05 deg
peri 202.5071435468385 7.4016e-05 deg
M 121.2537654399336 5.8337e-05 deg
tp 2458436.348460261965
(2018-Nov-13.84846026)
0.00026795 TDB
period 1674.954617440735
4.59
4.1126e-05
1.126e-07
d
yr
n .2149311964941868 5.2773e-09 deg/d
Q 3.022808781474653 4.9481e-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 = 1.49536 au 
 Jupiter MOID = 1.95634 au 
 T_jup = 3.301 
[ 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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