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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .238646208323374 8.986e-08  
a 2.3393455487902 1.9645e-08 au
q 1.781069603613256 2.0632e-07 au
i .5137343193471376 6.5475e-06 deg
node 313.5733531060166 0.00094316 deg
peri 58.92680308079151 0.00094319 deg
M 136.0484337343788 1.7932e-05 deg
tp 2457106.609084638014
(2015-Mar-25.10908464)
6.1819e-05 JED
period 1306.892881085668
3.58
1.6462e-05
4.507e-08
d
yr
n .2754625151075422 3.4699e-09 deg/d
Q 2.897621493967144 2.4333e-08 au
  Orbit Determination Parameters
   # obs. used (total)      222  
   data-arc span      8202 days (22.46 yr)  
   first obs. used      1993-09-15  
   last obs. used      2016-02-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57994  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 23:23:50  

Additional Information
 Earth MOID = .780223 au 
 Jupiter MOID = 2.56167 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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