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18984 Olathe (2000 RA8)
Classification: Outer Main-belt Asteroid          SPK-ID: 2018984
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02960563122827899 4.0026e-08  
a 3.251026406902182 2.1696e-08 au
q 3.154777717986039 1.3152e-07 au
i 14.05849349711176 5.0417e-06 deg
node 321.6049642823627 1.597e-05 deg
peri 249.4156630734744 8.4348e-05 deg
M 315.6295535395604 8.414e-05 deg
tp 2459464.388503610727
(2021-Sep-06.88850361)
0.00050059 TDB
period 2141.061649775444
5.86
2.1433e-05
5.868e-08
d
yr
n .1681408847044442 1.6832e-09 deg/d
Q 3.347275095818325 2.2338e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1749  
   data-arc span      16668 days (45.63 yr)  
   first obs. used      1975-06-01  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47851  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:41:07  

Additional Information
 Earth MOID = 2.18523 au 
 Jupiter MOID = 1.72596 au 
 T_jup = 3.133 
[ 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 13.02   n/a E2021B10  
diameter diameter 17.629 km 0.172 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18984 Olathe           Discovered 2000 Sept. 2 by L. Robinson at the Sunflower Observatory.
O-Lay'-tha is the old Shawnee word for "Beautiful". The township of Olathe, Kansas, was established in 1857 and later became a stop along the Santa Fe Trail. It is the site of the Sunflower Observatory.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2000 RA8 = 1975 LG1 = 1994 RS11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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