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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02936782199093384 3.9941e-08  
a 3.250212736128467 1.9556e-08 au
q 3.15476106706118 1.3065e-07 au
i 14.05869529545674 4.6692e-06 deg
node 321.6054614946218 1.5091e-05 deg
peri 249.5530427242492 7.4421e-05 deg
M 348.4474372178358 7.2588e-05 deg
tp 2459465.181843740871
(2021-Sep-07.68184374)
0.00043143 TDB
period 2140.257898869589
5.86
1.9316e-05
5.288e-08
d
yr
n .1682040282108711 1.5181e-09 deg/d
Q 3.345664405195754 2.013e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2056  
   data-arc span      16818 days (46.05 yr)  
   first obs. used      1975-06-01  
   last obs. used      2021-06-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46041  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:44:41  

Additional Information
 Earth MOID = 2.18659 au 
 Jupiter MOID = 1.72693 au 
 T_jup = 3.134 
[ 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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