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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2390457246123148 1.5366e-07  
a 2.338349360472555 1.8163e-08 AU
q 1.779376943201651 3.5361e-07 AU
i .5149123150568304 7.3475e-06 deg
node 313.608226746477 0.001503 deg
peri 58.75790983282636 0.001503 deg
M 275.689499850569 2.0391e-05 deg
tp 2457106.373383894070
(2015-Mar-24.87338389)
7.5148e-05 JED
period 1306.058177886498
3.58
1.5217e-05
4.166e-08
d
yr
n .2756385634999527 3.2116e-09 deg/d
Q 2.89732177774346 2.2505e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      7142 days (19.55 yr)  
   first obs. used      1993-09-15  
   last obs. used      2013-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61192  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-08 10:27:55  

Additional Information
 Earth MOID = .778329 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 (809)
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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