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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0910576003833653 4.4153e-08  
a 3.061949253237998 2.9895e-08 au
q 2.783135501742509 1.3976e-07 au
i 8.578472065387722 6.0353e-06 deg
node 61.84604155991841 3.4146e-05 deg
peri 262.6045165859516 4.9478e-05 deg
M 321.2209828683449 3.9097e-05 deg
tp 2459607.309271130015
(2022-Jan-27.80927113)
0.00021403 TDB
period 1957.0206575673
5.36
2.8661e-05
7.847e-08
d
yr
n .1839530914545903 2.694e-09 deg/d
Q 3.340763004733488 3.2617e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56756  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:59:01  

Additional Information
 Earth MOID = 1.78736 au 
 Jupiter MOID = 1.94611 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 15.33   n/a E2021B55  

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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