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JPL Small-Body Database Browser
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20668 (1999 UN11)
Classification: Main-belt Asteroid          SPK-ID: 2020668
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1167349478914052 5.3793e-08  
a 2.344418200296117 8.6947e-09 au
q 2.070742663848887 1.288e-07 au
i 9.677439174035829 5.3595e-06 deg
node 215.9104694454873 2.165e-05 deg
peri 344.465227651253 2.6672e-05 deg
M 353.9673416874165 1.5461e-05 deg
tp 2458622.471377210449
(2019-May-18.97137721)
5.6314e-05 TDB
period 1311.145996660021
3.59
7.294e-06
1.997e-08
d
yr
n .2745689655591784 1.5274e-09 deg/d
Q 2.618093736743346 9.7097e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1680  
   data-arc span      9158 days (25.07 yr)  
   first obs. used      1994-04-14  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47021  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:54:21  

Additional Information
 Earth MOID = 1.06902 au 
 Jupiter MOID = 2.35148 au 
 T_jup = 3.534 
[ 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 14.2   n/a MPO435891  

20668 (1999 UN11)          Discovered 1999-Oct-27 by Korlevic, K. at Visnjan
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 UN11 = 1994 GP9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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