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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1406203546626312 6.4733e-08  
a 2.17006916360392 1.5196e-08 AU
q 1.864913268175498 1.4859e-07 AU
i .7053475664857649 4.6823e-06 deg
node 89.98027297529127 0.00046837 deg
peri 281.0789607309146 0.00046877 deg
M 353.8413233584398 1.7317e-05 deg
tp 2457020.475317545059
(2014-Dec-28.97531754)
5.6174e-05 JED
period 1167.639532768133
3.20
1.2264e-05
3.358e-08
d
yr
n .3083143298056593 3.2384e-09 deg/d
Q 2.475225059032343 1.7333e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      958  
   data-arc span      12763 days (34.94 yr)  
   first obs. used      1979-09-23  
   last obs. used      2014-09-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50024  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:55:49  

Additional Information
 Earth MOID = .864778 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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