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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2908428925837377 2.3978e-07  
a 2.887036196899035 3.5602e-08 au
q 2.047362238398966 6.8274e-07 au
i 12.18326454168911 8.0742e-06 deg
node 246.7302856759139 4.0914e-05 deg
peri 117.1195982386405 4.4918e-05 deg
M 156.4769611605106 3.9986e-05 deg
tp 2458221.702277248633
(2018-Apr-13.20227725)
0.00018713 TDB
period 1791.747348051435
4.91
3.3143e-05
9.074e-08
d
yr
n .2009211847817205 3.7165e-09 deg/d
Q 3.726710155399104 4.5956e-08 au
  Orbit Determination Parameters
   # obs. used (total)      216  
   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      .60869  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 00:08:31  

Additional Information
 Earth MOID = 1.07962 au 
 Jupiter MOID = 1.95769 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 16.0   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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