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173902 (2001 UN163)
Classification: Main-belt Asteroid          SPK-ID: 2173902
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09064259273890111 4.422e-08  
a 3.060954048262779 3.0554e-08 au
q 2.783501237073605 1.3968e-07 au
i 8.579661016605071 6.0361e-06 deg
node 61.85054388300147 3.4141e-05 deg
peri 262.727445455909 4.9518e-05 deg
M 248.1891298851661 3.8649e-05 deg
tp 2459608.026418539511
(2022-Jan-28.52641854)
0.00021436 TDB
period 1956.066619011205
5.36
2.9288e-05
8.019e-08
d
yr
n .1840428114774437 2.7557e-09 deg/d
Q 3.338406859451953 3.3324e-08 au
  Orbit Determination Parameters
   # obs. used (total)      361  
   data-arc span      7722 days (21.14 yr)  
   first obs. used      1999-05-19  
   last obs. used      2020-07-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56782  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:16:16  

Additional Information
 Earth MOID = 1.78843 au 
 Jupiter MOID = 1.95002 au 
 T_jup = 3.210 
[ 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 15.2   n/a MPO433118  

173902 (2001 UN163)          Discovered 2001-Oct-23 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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