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9890 (1995 SY2)
Classification: Main-belt Asteroid          SPK-ID: 2009890
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1407061896235581 8.0437e-08  
a 2.170256866488228 1.6621e-08 AU
q 1.864888292300306 1.779e-07 AU
i .7053492288338268 5.4891e-06 deg
node 89.9781797635825 0.00059223 deg
peri 281.0766175715831 0.0005926 deg
M 292.1924499886323 2.0631e-05 deg
tp 2457020.458468665393
(2014-Dec-28.95846867)
6.7509e-05 JED
period 1167.791030737233
3.20
1.3415e-05
3.673e-08
d
yr
n .3082743320718347 3.5413e-09 deg/d
Q 2.47562544067615 1.8959e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      918  
   data-arc span      12332 days (33.76 yr)  
   first obs. used      1979-09-23  
   last obs. used      2013-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50337  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:40:05  

Additional Information
 Earth MOID = .863355 AU 
 T_jup = 3.676 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7 mag n/a MPO266010  

9890 (1995 SY2)          Discovered 1995-Sep-20 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 19990106/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 SY2 = 1979 SG5 = 1992 VA 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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