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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02978348674201628 4.0384e-08  
a 3.251536974454054 2.262e-08 au
q 3.154694866084226 1.3245e-07 au
i 14.05768084393163 5.0786e-06 deg
node 321.6048990330338 1.6464e-05 deg
peri 249.2565233368981 8.7151e-05 deg
M 282.1784746443348 8.7332e-05 deg
tp 2459463.444267228202
(2021-Sep-05.94426723)
0.00052017 TDB
period 2141.566044105048
5.86
2.2348e-05
6.119e-08
d
yr
n .1681012831665636 1.7542e-09 deg/d
Q 3.348379082823882 2.3294e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1610  
   data-arc span      16394 days (44.88 yr)  
   first obs. used      1975-06-01  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48054  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:55:50  

Additional Information
 Earth MOID = 2.1857 au 
 Jupiter MOID = 1.72565 au 
 T_jup = 3.133 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456893.5 (2014-Aug-24.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0322080045479661 4.1178e-08  
q 3.150399776522588 1.3589e-07 au
tp 2457301.901728404082
(2015-Oct-06.40172840)
0.00046922 TDB
node 321.6411426062706 1.6457e-05 deg
peri 245.6967207798375 7.9086e-05 deg
i 14.05772025835023 5.077e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1610  
   data-arc span      16394 days (44.88 yr)  
   first obs. used      1975-06-01  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48054  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:55:50  

Additional Information
 Jupiter MOID = 1.72565 au 
 T_jup = 3.133 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.695634896385633E-15 -5.521084822651585E-15 -6.673064242776752E-12 1.448354777663867E-15 -1.08037084436458E-12 2.920988843466479E-15
q -5.521084822651585E-15 1.846687327753076E-14 2.341834490791062E-11 -8.880646671852444E-15 3.785102246742437E-12 -1.117771123530619E-14
tp -6.673064242776752E-12 2.341834490791062E-11 2.201719204886594E-7 3.823709318803948E-11 3.631433836659548E-8 2.017282794705492E-11
node 1.448354777663867E-15 -8.880646671852444E-15 3.823709318803948E-11 2.708446818749792E-10 -2.561774144831175E-10 1.17888261088366E-11
peri -1.08037084436458E-12 3.785102246742437E-12 3.631433836659548E-8 -2.561774144831175E-10 6.254660858662317E-9 -8.113103178220106E-12
i 2.920988843466479E-15 -1.117771123530619E-14 2.017282794705492E-11 1.17888261088366E-11 -8.113103178220106E-12 2.57762948224457E-11

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 12.9   n/a MPO337418  
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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