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Physical Characteristics of Asteroid-like Comet Nucleus C/2001 OG108 (LONEOS)For many years several investigators have suggested that some portion of the near-Earth asteroid population may actually be extinct cometary nuclei. Evidence used to support these hypotheses was based on: observations of asteroid orbits and associated meteor showers (e.g. 3200 Phaethon and the Geminid meteor shower); low activity of short period comet nuclei, which implied nonvolatile surface crusts (e.g. Neujmin 1, Arend-Rigaux); and detections of transient cometary activity in some near-Earth asteroids (e.g. 4015 Wilson-Harrington). Recent investigations have suggested that approximately 5-10% of the near- Earth asteroid population may be extinct comets. However if members of the near-Earth asteroid population are extinct cometary nuclei, then there should be some objects within this population that are near their final stages of evolution and so should demonstrate only low levels of activity. The recent detections of coma from near-Earth object 2001 OG108 have renewed interest in this possible comet-asteroid connection. This paper presents the first high quality ground-based near-infrared reflectance spectrum of a comet nucleus combined with detailed lightcurve and albedo measurements.
Document ID
Acquisition Source
Document Type
Conference Paper
Abell, P. A.
(Rensselaer Polytechnic Inst. Troy, NY, United States)
Fernandez, Y. R.
(Hawaii Univ. Honolulu, HI, United States)
Pravec, P.
(Ceskoslovenska Akademie Ved Ondrejov, Czechoslovakia)
French, L. M.
(Illinois Wesleyan Univ. Bloomington, IL, United States)
Farnham, T. L.
(Maryland Univ. College Park, MD, United States)
Gaffey, M. J.
(North Dakota Univ. Grand Forks, ND, United States)
Hardersen, P. S.
(Rensselaer Polytechnic Inst. Troy, NY, United States)
Kusnirak, P.
(Ceskoslovenska Akademie Ved Ondrejov, Czechoslovakia)
Sarounova, L.
(Ceskoslovenska Akademie Ved Ondrejov, Czechoslovakia)
Sheppard, S. S.
(Hawaii Univ. Honolulu, HI, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2003
Publication Information
Publication: Lunar and Planetary Science XXXIV
Subject Category
Lunar And Planetary Science And Exploration
Funding Number(s)
CONTRACT_GRANT: 205-99-0255
Distribution Limits
Public Use Permitted.
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