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an asteroid will generally stimulate ground-based studies; this effect was seen strongly in the revival of respectability and activity in the early 1960's in planetary exploration when promoted by the Soviet and U.S. space programs.
Gehrels, T. 1970, Photometry of Asteroids. Surfaces and Interiors of Planets and Satellites (ed., A. Dollfus), ch. 6. Academic Press, Inc. London and New York.
Houten, C. J. van, Houten-Groeneveld, I. van, and Gehrels, T. 1970, The Density of Trojans Near the Preceding Lagrangian Point. Astron. J. 75, 659-662.
Tombaugh, C. W. 1961, The Trans-Neptunian Planet Search. Planets and Satellites (eds., G. P. Kuiper and B. M. Middlehurst). Univ. of Chicago Press. Chicago.
semimajor axis of the orbit
Zweiter Katalog der Astronomischen Gesellschaft
phase angle, which is the angle at the asteroid between the radius vectors to Earth and to the Sun; right ascension
astronomical unit, a of Earth
the mean opposition magnitude as defined by
injection energy into Earth-escape hyperbola, km2/s”
eccentricity of the orbit
Ephemerides of Minor Planets, published yearly by the Russian Academy of Sciences, Institute of Theoretical Astronomy, Leningrad, U.S.S.R.
Fourth Fundamental Catalogue, Berliner Astronomisches Jahrbuch
absolute magnitude:* g = B(1,0) - 0.10
universal constant of gravitation
inclination of the orbit
International Astronomical Union
ecliptic longitude; wavelength
astronomical magnitude or -2.5 log10 I
McDonald Survey of Asteroids
Minor Planet Circulars, published by the Minor Planet Center, Cincinnati,
1 um = 1-micrometer = 1 micron
the angle between the rotational axis and the perpendicular to the orbital plane
observed value minus computed value
"The symbols of this glossary are commonly used, unless defined differently by indi
*For the newer, more explicit, definition of absolute magnitude, see under UBV
period of rotation about the body axis, or orbital period; polarization
Palomar-Leiden Survey of Faint Asteroids
the distance from the Sun
radius of the object
time or epoch
Jacobian encounter velocity, defined by E. Öpik in Irish Astron. 8, 191, 1968.
the photometric system described by H. L. Johnson in ch. 11 of Basic Astronomical Data, K. Aa. Strand, ed., University of Chicago Press, 1963. Photographically, as well as photoelectrically, the magnitude B can be observed. It is related to the absolute magnitude, B(1,0), at unit distances and zero phase by
B = B(1,0) + 5 log ra + F(a)
LIST OF PARTICIPANTS
Aksnes, Kaare; JPL
Edmondson, Margaret; Indiana