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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2402454280911491 4.9172e-08  
a 2.35894689161265 1.2159e-08 au
q 1.792220685792884 1.1589e-07 au
i 3.261647834201173 5.0022e-06 deg
node 114.1124227315775 9.6511e-05 deg
peri 214.5353511665718 9.7281e-05 deg
M 245.0118047306908 1.679e-05 deg
tp 2458023.194336660261
(2017-Sep-26.69433666)
6.39e-05 JED
period 1323.35289584555
3.62
1.0231e-05
2.801e-08
d
yr
n .2720362808213599 2.1032e-09 deg/d
Q 2.925673097432417 1.508e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1070  
   data-arc span      12631 days (34.58 yr)  
   first obs. used      1981-09-03  
   last obs. used      2016-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58109  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:11:53  

Additional Information
 Earth MOID = .781394 au 
 Jupiter MOID = 2.42021 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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