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109888 (2001 SY9)
Classification: Main-belt Asteroid          SPK-ID: 2109888
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1277586342253758 6.9421e-08  
a 2.638274701825817 1.1043e-08 au
q 2.30121232920919 1.7983e-07 au
i 10.06439070659529 7.8111e-06 deg
node 35.34375057491194 2.3028e-05 deg
peri 27.67072684470439 3.9573e-05 deg
M 109.9026484710262 2.8428e-05 deg
tp 2458522.658237040009
(2019-Feb-08.15823704)
0.00012382 TDB
period 1565.231020897073
4.29
9.8269e-06
2.69e-08
d
yr
n .2299979972245087 1.444e-09 deg/d
Q 2.975337074442443 1.2453e-08 au
  Orbit Determination Parameters
   # obs. used (total)      969  
   data-arc span      7676 days (21.02 yr)  
   first obs. used      1999-05-16  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52666  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:09:10  

Additional Information
 Earth MOID = 1.31839 au 
 Jupiter MOID = 2.39133 au 
 T_jup = 3.363 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO231978  

109888 (2001 SY9)          Discovered 2001-Sep-18 by Yeung, W. K. Y. at Desert Eagle
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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