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4966 Edolsen (1981 EO34)
Classification: Main-belt Asteroid          SPK-ID: 2004966
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2126290766774959 4.1705e-08  
a 2.632180936584068 8.3017e-09 au
q 2.072502734390091 1.0989e-07 au
i 9.948085226148681 4.3272e-06 deg
node 175.9236379079829 1.8224e-05 deg
peri 183.5650550495478 1.9511e-05 deg
M 280.4029421781734 8.4986e-06 deg
tp 2459545.378840958896
(2021-Nov-26.87884096)
3.7579e-05 TDB
period 1559.811205875463
4.27
7.3792e-06
2.02e-08
d
yr
n .2307971622744854 1.0919e-09 deg/d
Q 3.191859138778045 1.0067e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2211  
   data-arc span      14404 days (39.44 yr)  
   first obs. used      1981-02-09  
   last obs. used      2020-07-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5056  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:59:29  

Additional Information
 Earth MOID = 1.06745 au 
 Jupiter MOID = 2.26315 au 
 T_jup = 3.346 
[ 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 13.75   n/a E2021B10  
diameter diameter 10.212 km 0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4966 Edolsen           Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring in the course of the U.K. Schmidt-Caltech Asteroid Survey.
Edward Olsen (b. 1927) is a long-time curator of the meteorite collection at the Field Museum of Natural History in Chicago. His studies of stony-iron meteorites and phosphate minerals have focused on unraveling the processes that led to core formation in minor planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001013/MPCPages.arcLast Updated: 2013-03-29

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Alternate Designations
 1981 EO34 = 1987 SO1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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