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204973 (1993 SN9)
Classification: Main-belt Asteroid          SPK-ID: 2204973
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2388253842979862 1.0014e-07  
a 2.33827852661856 2.0666e-08 au
q 1.779838258903154 2.33e-07 au
i .5147513476210281 6.5624e-06 deg
node 313.6051261526063 0.0012889 deg
peri 58.78235456700877 0.0012891 deg
M 81.06470555407587 1.8913e-05 deg
tp 2457106.415525372470
(2015-Mar-24.91552537)
6.7338e-05 JED
period 1305.998833182558
3.58
1.7314e-05
4.74e-08
d
yr
n .2756510885409633 3.6544e-09 deg/d
Q 2.896718794333966 2.5602e-08 au
  Orbit Determination Parameters
   # obs. used (total)      187  
   data-arc span      8129 days (22.26 yr)  
   first obs. used      1993-09-15  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58822  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 20:41:49  

Additional Information
 Earth MOID = .778424 au 
 Jupiter MOID = 2.56307 au 
 T_jup = 3.527 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.4 mag n/a MPO260326  

204973 (1993 SN9)          Discovered 1993-Sep-22 by Debehogne, H., Elst, E. W. at La Silla
Reference: 20090209/Numbers.arcLast Updated: 2009-02-11

Alternate Designations
 1993 SN9 = 2000 OQ59 = 2000 QD131 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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