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Discovery and orbital characterization of near-Earth asteroidsThe fundamentals of photographic discovery are discussed, and the work at the Palomar Observatory is described including photographic discovery programs elsewhere. The Spacewatch development of CCD-scanning techniques is reviewed. Special searches for objects near the Earth are reported. The existence of four streams among both Earth-approaching asteroids and meteorite-dropping fireballs suggests that at certain times of the year an increase can be expected in both asteroid discoveries and meteoritic events.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Gehrels, T.
(Arizona Univ. Tucson, AZ, United States)
Drummond, J.
(Arizona Univ. Tucson, AZ, United States)
Helin, E.
(Arizona Univ. Tucson, AZ, United States)
Hoffmann, Martin
(Arizona Univ. Tucson, AZ, United States)
Rabinowitz, D.
(Arizona Univ. Tucson, AZ, United States)
Shoemaker, E.
(Arizona Univ. Tucson, AZ, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1991
Publication Information
Publication: Resources of Near-Earth Space: Abstracts
Subject Category
Lunar And Planetary Exploration
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.

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