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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2913257860320935 1.4712e-07  
a 2.885928822016478 3.1692e-08 au
q 2.045183339509854 4.2319e-07 au
i 12.185670803617 7.4423e-06 deg
node 246.7146116532833 3.8402e-05 deg
peri 117.1508197808315 4.2214e-05 deg
M 236.05122722509 3.2771e-05 deg
tp 2460013.047556009666
(2023-Mar-09.54755601)
0.00017143 TDB
period 1790.716561321283
4.90
2.9498e-05
8.076e-08
d
yr
n .2010368406568896 3.3116e-09 deg/d
Q 3.726674304523102 4.0925e-08 au
  Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      8225 days (22.52 yr)  
   first obs. used      1998-10-02  
   last obs. used      2021-04-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60724  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 03:12:32  

Additional Information
 Earth MOID = 1.07671 au 
 Jupiter MOID = 1.9596 au 
 T_jup = 3.196 
[ 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 16.06   n/a E2021B55  

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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