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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2413108824053008 5.8865e-08  
a 2.357198622090206 1.244e-08 AU
q 1.788380942589059 1.4065e-07 AU
i 3.26458372751942 5.7976e-06 deg
node 114.1603468077551 0.00012225 deg
peri 214.1580115083347 0.00012293 deg
M 27.71280966692722 1.6686e-05 deg
tp 2456698.741486775058
(2014-Feb-10.24148678)
6.0847e-05 JED
period 1321.882017783908
3.62
1.0464e-05
2.865e-08
d
yr
n .2723389796946692 2.1558e-09 deg/d
Q 2.926016301591352 1.5441e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      906  
   data-arc span      11674 days (31.96 yr)  
   first obs. used      1981-09-03  
   last obs. used      2013-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58612  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Sep-23 23:20:09  

Additional Information
 Earth MOID = .776982 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 (323)
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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