Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4665017580185669 5.6018e-08  
a 4.238852954925389 3.8035e-08 au
q 2.261420599470498 2.2784e-07 au
i 45.56799253565546 9.9365e-06 deg
node 293.1592896148536 8.3422e-06 deg
peri 235.1696886306706 1.2061e-05 deg
M 58.8257402790036 9.6368e-06 deg
tp 2458479.622192721676
(2018-Dec-27.12219272)
8.155e-05 TDB
period 3187.652373447916
8.73
4.2904e-05
1.175e-07
d
yr
n .1129357777525179 1.5201e-09 deg/d
Q 6.21628531038028 5.5779e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1948  
   data-arc span      25210 days (69.02 yr)  
   first obs. used      1951-07-30  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .28717  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:40:05  

Additional Information
 Earth MOID = 1.45314 au 
 Jupiter MOID = .527107 au 
 T_jup = 2.345 
[ 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-August); 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

[ show close-approach data ]
Alternate Designations
 2000 WE147 = 1975 BE = 1994 NA1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-26 08:43 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin