Physical Studies of Minor PlanetsTom Gehrels Scientific and Technical Information Office, National Aeronautics and Space Administration, 1972 - 687 Seiten " ... Some papers and discussions included in this book even though they were not presented at the meeting. In some respects, therefore, the book is independent of the colloquium. Several papers had been invited long beforehand with the request to publish them as review papers. The lack of a modern textbook on minor planets is keenly felt, and the proceedings of this meeting, with these additions, should provide a good reference book."--Page viii. |
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Seite 62
Chapman (1971) will discuss the final reduction for these 11 asteroids and others
observed after October 1970. The spectral reflectivity curves for the 11 asteroids,
including 192, are shown in figure 6. An approximate indication of the standard ...
Chapman (1971) will discuss the final reduction for these 11 asteroids and others
observed after October 1970. The spectral reflectivity curves for the 11 asteroids,
including 192, are shown in figure 6. An approximate indication of the standard ...
Seite 190
The corrected individual frequencies are not shown; only their marginal totals S1
are given. From the corrected i distribution in each zone except zone 8, which
has too few objects for a proper determination, the values of 20.5 and 20.95 are ...
The corrected individual frequencies are not shown; only their marginal totals S1
are given. From the corrected i distribution in each zone except zone 8, which
has too few objects for a proper determination, the values of 20.5 and 20.95 are ...
Seite 494
Furthest advanced in development, testing, and flight applications is the Kaufman
engine in which ionization of the vaporized propellant is accomplished by
electron bombardment; it is shown in figures 3 and 4. The first application of an ...
Furthest advanced in development, testing, and flight applications is the Kaufman
engine in which ionization of the vaporized propellant is accomplished by
electron bombardment; it is shown in figures 3 and 4. The first application of an ...
Seite 522
Opportunities for round-trip missions to Eros occur about 2 yr apart, and their
effect on returned mass is shown in figure 6. The open bars relate to the return
capsule mass in Earth orbit and the shaded bars are merely an estimate of the
soil ...
Opportunities for round-trip missions to Eros occur about 2 yr apart, and their
effect on returned mass is shown in figure 6. The open bars relate to the return
capsule mass in Earth orbit and the shaded bars are merely an estimate of the
soil ...
Seite 554
VEHICLE CONFIGURATION AND DESIGN CHARACTERISTICS Conceptual
configurations of the solar electric spacecraft during cruise and after landing are
shown in figure 7. The vehicle consists of a center structure that houses the ...
VEHICLE CONFIGURATION AND DESIGN CHARACTERISTICS Conceptual
configurations of the solar electric spacecraft during cruise and after landing are
shown in figure 7. The vehicle consists of a center structure that houses the ...
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albedo angle Apollo appears approach approximately assumed asteroid belt asteroids Astron bodies brightness calculated Ceres chondrites close collisions cometary comets compared complete considered constant corrections curve density depends determined diameter direction discussed distance distribution dust Earth effect electric elements equation Eros estimate families field Figure fragments function Gehrels given Icarus impact important included increase indicate interplanetary Jupiter known larger less light lightcurve limit lunar magnitude Mars mass material mean measurements meteorites minor planets mission Moon motion NASA objects observed obtained opposition orbits origin particles percent period phase photometry polarization position possible present probably problem properties radius range REFERENCES reflectivity relation relative rotation sample scattering selection shown similar smaller solar solar system space spacecraft stream suggested surface velocity Vesta