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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2404203793567916 4.956e-08  
a 2.359310943388325 1.2177e-08 au
q 1.792084511358274 1.1671e-07 au
i 3.262903662866665 5.3523e-06 deg
node 114.1484483481022 0.00010213 deg
peri 214.3729960421092 0.00010287 deg
M 190.8115421527697 1.6628e-05 deg
tp 2458022.577410577247
(2017-Sep-26.07741058)
6.4181e-05 JED
period 1323.659253458199
3.62
1.0248e-05
2.806e-08
d
yr
n .2719733187068062 2.1056e-09 deg/d
Q 2.926537375418376 1.5105e-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 = .779888 au 
 Jupiter MOID = 2.41794 au 
 T_jup = 3.511 
[ 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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