Results 131 to 140 of about 513,787 (184)

Satellite orbits and ephemerides

Celestial Mechanics, 1984
This review considers theoretical work leading to the actual knowledge of the motions of all planetary satellites, except the Moon. It covers recent calculations of inequalities of satellites’ motions and the determination of their orbits on the basis of existing observational data.
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The Computation of Satellite Orbit Trajectories

1962
Publisher Summary This chapter focuses on the computation of satellite orbit trajectories. The post-Sputnik era has seen a phenomenal growth in the computation of the orbits of artificial satellites. There are literally dozens of installations actively engaged in computing orbits and in related research.
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Orbit Control of a Recalcitrant Satellite

IFAC Proceedings Volumes, 1992
Abstract After the recovery of the OLYMPUS mission in mid August 1991 the orbit control of the satellite suffered from perturbations of daily attitude thruster firings. All orbital elements were affected in a dramatic way. Furthermore, additional constraints for the orbital correction manoeuvres arose from the attitude control mode applied and from ...
H. Boehnhardt, W. Peterhaensel, E.M. Soop   +2 more
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Satellite Orbits

The Physics Teacher, 1963
The various types of satellite and projectile orbits are described and related to the conditions, in terms of energy and angular momentum, under which the ideal orbits occur. The transient nature of the initial and final part of a satellite's path and the conditions necessary for placing a satellite in a given orbit are discussed.
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Viking Satellite Orbit Determination

Journal of Guidance and Control, 1977
During the summer of 1976, the two Viking spacecraft, each consisting of an orbiter-lander combination, were inserted into orbit about Mars. The paper describes the experiences of the Viking Satellite Orbit Determination Team in determining Mars centered ephemerides of the orbiters and positions of the landers from the two-way Doppler and range data ...
C. HILDEBRAND, E. CHRISTENSEN, D. BOGGS, G. BORN, H. HOKIKIAN, J. JORDAN, W. HOWARD   +6 more
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Orbits of the Small Satellites of Saturn

Science, 1981
Orbital parameter values and associated uncertainties determined from Voyager 1 imaging data for the satellites 1980S1, 1980S3, 1980S6, 1980S26, 1980S27, and 1980S28 are presented.
S P, Synnott, C F, Peters, B A, Smith, L A, Morabito   +3 more
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Theory of satellite orbit-orbit resonance

Celestial Mechanics, 1981
On the basis of the strong mathematical and physical parallels between orbit-orbit and spin-orbit resonances, the dynamics of mutual orbit perturbations between two satellites about a massive planet are examined, exploiting an approach previously adopted in the study of spin-orbit coupling. The satellites are assumed to have arbitrary mass ratio and to
Blitzer, Leon, Anderson, John D.
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Geostationary Satellite Orbital Geometry

IEEE Transactions on Communications, 1972
In the design of communication systems using geostationary satellites, it is essential to know the relationships among the slant range, elevation angle, central angle, and nadir angle.
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Placing the satellite in its orbit

IRE International Convention Record, 1956
The VANGUARD satellite launching vehicle is a three-stage rocket of which the first two stages are guided and the third stage is maintained in a fixed orientation while it is firing. The first stage, an improved Viking, serves primarily to raise the remaining stages to altitude.
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Mapping Long-Term Natural Orbits about Titania, a Satellite of Uranus

Symmetry, 2022
Silvia Maria Giuliatti Winter, Antonio Prado, André Amarante   +2 more
exaly