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

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .240635290866428 3.9609e-08  
a 2.357727558376531 7.3526e-09 au
q 1.790375101582801 9.4523e-08 au
i 3.262117845983938 4.4621e-06 deg
node 114.0888508424603 6.4423e-05 deg
peri 214.6660208598453 6.4854e-05 deg
M 157.0732582386146 8.0458e-06 deg
tp 2458023.549427842933
(2017-Sep-27.04942784)
2.879e-05 TDB
period 1322.326972176368
3.62
6.1855e-06
1.693e-08
d
yr
n .2722473394061452 1.2735e-09 deg/d
Q 2.925080015170261 9.1219e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1422  
   data-arc span      13725 days (37.58 yr)  
   first obs. used      1981-09-03  
   last obs. used      2019-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53891  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:12:23  

Additional Information
 Earth MOID = .779354 au 
 Jupiter MOID = 2.42919 au 
 T_jup = 3.512 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO378692  
diameter diameter 2.699 km 0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.350   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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