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201666 (2003 UN50)
Classification: Main-belt Asteroid          SPK-ID: 2201666
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .2908429290721926 2.398e-07  
a 2.887036210712778 3.5602e-08 au
q 2.04736214285159 6.8279e-07 au
i 12.18327656368956 8.0827e-06 deg
node 246.7302441966176 4.0915e-05 deg
peri 117.1196466269396 4.4925e-05 deg
M 156.476948558958 3.9992e-05 deg
tp 2458221.702334377991
(2018-Apr-13.20233438)
0.00018716 TDB
period 1791.747360911026
4.91
3.3143e-05
9.074e-08
d
yr
n .2009211833396845 3.7166e-09 deg/d
Q 3.726710278573965 4.5957e-08 au
  Orbit Determination Parameters
   # obs. used (total)      213  
   data-arc span      7377 days (20.20 yr)  
   first obs. used      1998-10-02  
   last obs. used      2018-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62891  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:38:22  

Additional Information
 Earth MOID = 1.07962 au 
 Jupiter MOID = 1.95769 au 
 T_jup = 3.196 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456055.5 (2012-May-08.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2858829641603767 2.3818e-07  
q 2.065668962757246 6.7413e-07 au
tp 2456424.351628015592
(2013-May-11.85162802)
0.00016184 TDB
node 247.1715617732331 4.0818e-05 deg
peri 116.4751001652244 4.5071e-05 deg
i 12.18068525791275 8.0749e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      213  
   data-arc span      7377 days (20.20 yr)  
   first obs. used      1998-10-02  
   last obs. used      2018-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62891  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:38:22  

Additional Information
 Jupiter MOID = 1.95769 au 
 T_jup = 3.196 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.673144363048402E-14 -1.604679162787664E-13 3.004427114875167E-11 -5.975655448832698E-13 2.119607272438537E-12 7.633034599277667E-14
q -1.604679162787664E-13 4.544477561468764E-13 -8.317949794257544E-11 1.683966572065801E-12 -5.724025944885036E-12 -2.183372500812843E-13
tp 3.004427114875167E-11 -8.317949794257544E-11 2.619117808108135E-8 -3.56587208613564E-10 2.948593156955404E-9 2.076520353139565E-11
node -5.975655448832698E-13 1.683966572065801E-12 -3.56587208613564E-10 1.66607776442324E-9 -1.651216065924446E-9 -3.952182717462946E-11
peri 2.119607272438537E-12 -5.724025944885036E-12 2.948593156955404E-9 -1.651216065924446E-9 2.031379995079221E-9 3.720659184645389E-11
i 7.633034599277667E-14 -2.183372500812843E-13 2.076520353139565E-11 -3.952182717462946E-11 3.720659184645389E-11 6.520460212669411E-11

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 16.0   n/a MPO454429  

201666 (2003 UN50)          Discovered 2003-Oct-17 by Spacewatch at Kitt Peak
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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