タイトル | Galileo radio science investigations |
著者(英) | Hinson, D. P.; Volland, H.; Kliore, A. J.; Paetzold, M.; Woo, R.; Eshleman, V. R.; Bird, M. K.; Edenhoffer, P.; Howard, H. T.; Lindal, G. F. |
著者所属(英) | NASA Headquarters; Jet Propulsion Lab., California Inst. of Tech. |
発行日 | 1992-05-01 |
言語 | eng |
内容記述 | Galileo radio-propagation experiments are based on measurements of absolute and differential propagation time delay, differential phase delay, Doppler shift, signal strength, and polarization. These measurements can be used to study: the atmospheric and ionospheric structure, constituents, and dynamics of Jupiter; the magnetic field of Jupiter; the diameter of Io, its ionospheric structure, and the distribution of plasma in the Io torus; the diameters of the other Galilean satellites, certain properties of their surfaces, and possibly their atmospheres and ionospheres; and the plasma dynamics and magnetic field of the solar corona. The spacecraft system provides linear rather than circular polarization on the S-band downlink signal, the capability to receive X-band uplink signals, and a differential downlink ranging mode. A highly-stable, dual-frequency, spacecraft radio system is developed that is suitable for simultaneous measurements of all the parameters normally attributed to radio waves. |
NASA分類 | SPACE COMMUNICATIONS, SPACECRAFT COMMUNICATIONS, COMMAND AND TRACKING |
レポートNO | 92A44599 |
権利 | Copyright |
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