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18560 Coxeter (1997 EO7)
Classification: Main-belt Asteroid          SPK-ID: 2018560
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1881838943193399 3.7461e-08  
a 3.145021365066762 1.6793e-08 au
q 2.553178996870972 1.2376e-07 au
i 9.282633999298335 4.4185e-06 deg
node 328.5864473342575 2.2852e-05 deg
peri 325.6499420354913 2.5404e-05 deg
M 352.575485057768 1.0912e-05 deg
tp 2459438.514520541400
(2021-Aug-12.01452054)
6.1786e-05 TDB
period 2037.200748141699
5.58
1.6317e-05
4.467e-08
d
yr
n .1767130707802783 1.4154e-09 deg/d
Q 3.736863733262551 1.9953e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2092  
   data-arc span      8978 days (24.58 yr)  
   first obs. used      1997-01-09  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44281  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:10:36  

Additional Information
 Earth MOID = 1.54339 au 
 Jupiter MOID = 1.55261 au 
 T_jup = 3.162 
[ 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 12.80   n/a MPO636344  
diameter diameter 18.465 km 0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18560 Coxeter           Discovered 1997 Mar. 7 by P. G. Comba at Prescott.
Harold Scott MacDonald Coxeter (b. 1907) is an English-Canadian mathematician and former professor at the University of Toronto. He has been a prolific writer on intuitively simple geometric problems, such as the classification of polytopes and the tiling of the plane with convex polygons.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

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