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11472 (1981 SE9)
Classification: Main-belt Asteroid          SPK-ID: 2011472
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2412298602229221 4.9611e-08  
a 2.357204624227613 1.2158e-08 AU
q 1.78857648220836 1.1691e-07 AU
i 3.264562236843883 5.3577e-06 deg
node 114.1607583430379 0.00010204 deg
peri 214.1705659526878 0.00010278 deg
M 82.17771021911081 1.6078e-05 deg
tp 2456698.750965817553
(2014-Feb-10.25096582)
5.7735e-05 JED
period 1321.887066651544
3.62
1.0227e-05
2.8e-08
d
yr
n .2723379395124211 2.1071e-09 deg/d
Q 2.925832766246866 1.5091e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      979  
   data-arc span      12223 days (33.46 yr)  
   first obs. used      1981-09-03  
   last obs. used      2015-02-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58471  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:41:19  

Additional Information
 Earth MOID = .779018 AU 
 T_jup = 3.512 
[ 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 14.6 mag n/a PDS3 (MPC 35825)  

11472 (1981 SE9)          Discovered 1981-Sep-24 by Perth Observatory at Bickley
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 SE9 = 1981 RG = 1992 UX1 = 1998 FP120 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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