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4966 Edolsen (1981 EO34)
Classification: Main-belt Asteroid          SPK-ID: 2004966
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2119257671278393 6.4603e-08  
a 2.632376349778745 1.5423e-08 au
q 2.074507972482703 1.6689e-07 au
i 9.946580204712612 6.3092e-06 deg
node 175.9401772485253 2.6581e-05 deg
peri 183.7746201275789 2.9012e-05 deg
M 270.9116445900614 1.5881e-05 deg
tp 2457986.545805760483
(2017-Aug-21.04580576)
7.102e-05 JED
period 1559.984909748034
4.27
1.371e-05
3.754e-08
d
yr
n .2307714630766181 2.0281e-09 deg/d
Q 3.190244727074787 1.8691e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1231  
   data-arc span      12848 days (35.18 yr)  
   first obs. used      1981-02-09  
   last obs. used      2016-04-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54529  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:50:13  

Additional Information
 Earth MOID = 1.07009 au 
 Jupiter MOID = 2.25528 au 
 T_jup = 3.346 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a MPO279566  
diameter diameter 9.66 km 0.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
geometric albedo albedo 0.0687   0.013 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2

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

[ show close-approach data ]
Alternate Designations
 1981 EO34 = 1987 SO1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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