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11709 Eudoxos (1998 HF20)
Classification: Main-belt Asteroid          SPK-ID: 2011709
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1094622731817652 2.6744e-08  
a 2.60334465007685 8.6697e-09 au
q 2.31837662680385 6.9153e-08 au
i 2.761024727878181 4.186e-06 deg
node 193.1797625596967 6.3747e-05 deg
peri 97.978824490004 6.6729e-05 deg
M 135.5793951786873 1.9498e-05 deg
tp 2458818.687252521895
(2019-Dec-01.18725252)
8.2864e-05 TDB
period 1534.249277465555
4.20
7.6641e-06
2.098e-08
d
yr
n .2346424438893583 1.1721e-09 deg/d
Q 2.888312673349848 9.6187e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1615  
   data-arc span      15449 days (42.30 yr)  
   first obs. used      1978-10-27  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47018  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 16:37:36  

Additional Information
 Earth MOID = 1.30383 au 
 Jupiter MOID = 2.25631 au 
 T_jup = 3.403 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.82   n/a E2021B10  
diameter diameter 4.470 km 0.193 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.64 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2013) Minor Planet Bull. 40, 71-80.]
geometric albedo albedo 0.117   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11709 Eudoxos           Discovered 1998 Apr. 27 by P. G. Comba at Prescott.
Eudoxos of Knidos (c. 408-355 B.C.) was the prime mover behind two major developments in Greek mathematical thought: the theory of proportions that overcame the crisis caused by the discovery of irrational numbers, and the method of exhaustion for the calculation of areas and volumes.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19991123/MPCPages.arcLast Updated: 2010-06-11

Alternate Designations
 1998 HF20 = 1978 US7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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