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20898 Fountainhills (2000 WE147)
Classification: Outer Main-belt Asteroid          SPK-ID: 2020898
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4652946196152467 7.5757e-08  
a 4.221363006368548 4.1411e-08 au
q 2.25718551206242 3.1807e-07 au
i 45.527098492791 1.0126e-05 deg
node 293.1876760853048 1.0895e-05 deg
peri 234.8079768265255 1.3633e-05 deg
M 13.86928800145255 9.749e-06 deg
tp 2458478.452428424685
(2018-Dec-25.95242842)
8.4611e-05 TDB
period 3167.943860024529
8.67
4.6616e-05
1.276e-07
d
yr
n .1136383774165785 1.6722e-09 deg/d
Q 6.185540500674676 6.068e-08 au
  Orbit Determination Parameters
   # obs. used (total)      986  
   data-arc span      24636 days (67.45 yr)  
   first obs. used      1951-07-30  
   last obs. used      2019-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38166  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 23:46:54  

Additional Information
 Earth MOID = 1.44671 au 
 Jupiter MOID = .52979 au 
 T_jup = 2.350 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.3   n/a MPO435894  
diameter diameter 37.31 km 1.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
rotation period rot_per 12.84 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Holliday, B. (2001) Minor Planet Bull. 28, 26-28.]
geometric albedo albedo 0.0505   0.003 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6

20898 Fountainhills           Discovered 2000 Nov. 30 by C. W. Juels at Fountain Hills.
The town of Fountain Hills, Arizona, incorporated in 1989, is nestled in the foothills of the McDowell Mountains east of Scottsdale. It offers beautiful high Sonoran desert and mountain views, and it is home to one of the world's tallest water fountains, which can attain a height of 170 meters.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 2000 WE147 = 1975 BE = 1994 NA1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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