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173143 (1995 SY66)
Classification: Main-belt Asteroid          SPK-ID: 2173143
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1790692632947465 5.0833e-08  
a 3.085837934472458 2.5899e-08 au
q 2.533259208899493 1.5468e-07 au
i .5323672876150236 7.7969e-06 deg
node 23.61027947055364 0.00058623 deg
peri 55.58591006446831 0.00058665 deg
M 134.483494291105 2.1702e-05 deg
tp 2458260.852861684440
(2018-May-22.35286168)
0.0001158 TDB
period 1979.967662181822
5.42
2.4927e-05
6.825e-08
d
yr
n .1818211513632999 2.289e-09 deg/d
Q 3.638416660045424 3.0537e-08 au
  Orbit Determination Parameters
   # obs. used (total)      210  
   data-arc span      8990 days (24.61 yr)  
   first obs. used      1995-09-17  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58224  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:24:31  

Additional Information
 Earth MOID = 1.54893 au 
 Jupiter MOID = 1.61892 au 
 T_jup = 3.201 
[ 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 16.6   n/a MPO427056  

173143 (1995 SY66)          Discovered 1995-Sep-17 by Spacewatch at Kitt Peak
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 1995 SY66 = 1995 SY89 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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