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The Palomar planet-crossing asteroid survey, 1973–1978

Helin, E. F. and Shoemaker, E. M. (1979) The Palomar planet-crossing asteroid survey, 1973–1978. Icarus, 40 (3). pp. 321-328. ISSN 0019-1035. http://resolver.caltech.edu/CaltechAUTHORS:20140811-145154167

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Abstract

Photographic coverage of about 80,000 deg^2 of sky with the Palomar 46-cm Schmidt camera has yielded 12 new planet-crossing asteroids as well as many objects in the main asteroid belt. The estimated population of planet-crossing asteroids includes ∼100 Atens, 700 ± 300 Apollos, 1000–2000 Amors, 10,000 ± 5000 Mars crossers, and ∼5000 Mars grazers.


Item Type:Article
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URLURL TypeDescription
http://dx.doi.org/10.1016/0019-1035(79)90021-6DOIArticle
http://www.sciencedirect.com/science/article/pii/0019103579900216PublisherArticle
Additional Information:Copyright © 1979 Published by Elsevier Inc. Received April 10, 1979; revised July 19, 1979. It is a pleasure to thank B. G. Marsden and J. G. Williams for providing orbits and ephemerides of newly discovered objects and for their continual encouragement. We are grateful to C. T. Kowal, who since this program was initiated, has given generously of his time and experience. He has made crucial observations for us with the 122-cm Schmidt when asteroids have been too faint for the 46-cm Schmidt. D. L. Matson has assisted us by setting up a telex communication network to send ephemerides to other observers. We also are indebted to the following Caltech students, without whose dedicated supporting effort the observation program could not have been accomplished: Schelte J. Bus, Patricia L. Bornmann, Michael F. Klein, Tod R. Lauer, Michael S. Meyer, Carlton P. Pryor, Jeffrey D. Sanders, Kenneth P. Severin, John C. Smith, Stephen M. Trimberger, David R. Van Alstine, Ralph C. Weeks, David A. Wheeler, and David S. Zelinsky. This research has been carried out under NASA Contract NGR-05-002-303 and with the generous support of the Hale Observatories.
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Funding AgencyGrant Number
NASANGR-05-002-303
Hale ObservatoriesUNSPECIFIED
Record Number:CaltechAUTHORS:20140811-145154167
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20140811-145154167
Official Citation:E.F. Helin, E.M. Shoemaker, The Palomar planet-crossing asteroid survey, 1973–1978, Icarus, Volume 40, Issue 3, December 1979, Pages 321-328, ISSN 0019-1035, http://dx.doi.org/10.1016/0019-1035(79)90021-6. (http://www.sciencedirect.com/science/article/pii/0019103579900216)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:48337
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:12 Aug 2014 15:07
Last Modified:13 Feb 2019 18:06

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