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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2412298611867041 4.9792e-08  
a 2.357204624012991 1.2184e-08 AU
q 1.78857647977368 1.1739e-07 AU
i 3.264562390613288 5.3624e-06 deg
node 114.160766788582 0.00010277 deg
peri 214.1705576106958 0.00010351 deg
M 82.17771026586203 1.6079e-05 deg
tp 2456698.750965687098
(2014-Feb-10.25096569)
5.7736e-05 JED
period 1321.887066471009
3.62
1.0249e-05
2.806e-08
d
yr
n .2723379395496154 2.1116e-09 deg/d
Q 2.925832768252302 1.5124e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      955  
   data-arc span      12178 days (33.34 yr)  
   first obs. used      1981-09-03  
   last obs. used      2015-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59064  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:32:18  

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 (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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