Results 221 to 230 of about 3,567 (259)
Study of orbital elements on the neighbourhood of a frozen orbit [PDF]
Journal of Aerospace Engineering, Sciences and Applications, 2008 Frozen orbits are studied, including perturbations due to J5 harmonic and atmospheric drag. Non- singular variables are introduced according to non-singular theory used at INPE Satellite Tracking and Control Center (CRC). Using CBERS-1 (China Brazil Earth Resources Satellite) satellite's data, results are compared with those used nowadays at the INPE ...
Pardal +4 more
openaire +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
The geopotential in nonsingular orbital elements
Celestial Mechanics, 1977Singularities are eliminated from the geopotential and its partial derivatives for zero eccentricity and inclination, and an expression for the geopotential expansion based entirely on nonsingular orbital elements is developed. The argument relies on the treatments of the geopotential function given by Izsak (1964), Allan (1965) and Kaula (1966); the ...
S. S. Dallas, Paul Nacozy
openaire +2 more sources
Time elements in Keplerian orbital elements
Celestial Mechanics, 1981Time elements are introduced in terms of Keplerian (classical) orbital elements for use with time transformations of the Sundman type. Three different time elements are introduced. One time element is associated with the eccentric anomaly, a second time element is associated with the true anomaly, and a third time element is associated with the ...
openaire +2 more sources
The Elements of Spectroscopic Orbits
1978The orbit is based on only one measured function, namely the radial velocity V of a star (relative to the sun) at different times. Call γ the radial velocity of the mass center of the binary (a constant unless a third body is involved), and z= dz/dt the radial part of the orbital velocity of the observed component relative to the mass center: $$V =
openaire +2 more sources
2012
I was hom in Bradford, West Yorkshire in 1950 and by the age of ten I had developed an interest, like many children, in prehistoric animals and astronomy. In 1962 the first American piloted orbital flights began and my teacher at Wibsey Junior School, Mr Slater, brought a radio into the classroom so that we could listen to these flights.
openaire +2 more sources
I was hom in Bradford, West Yorkshire in 1950 and by the age of ten I had developed an interest, like many children, in prehistoric animals and astronomy. In 1962 the first American piloted orbital flights began and my teacher at Wibsey Junior School, Mr Slater, brought a radio into the classroom so that we could listen to these flights.
openaire +2 more sources
Elements of a Chemical Orbital Theory
2009Interaction is important in chemistry. Interactions of atoms form chemical bonds. Bonds interact with each other in molecules to determine the molecular properties. Interactions of molecules give rise to chemical reactions. Electrons control atoms, bonds, and molecules.
openaire +2 more sources
Orbital elements of Minor Planets
Astronomische Nachrichten, 1996AbstractOrbital elements of the numbered minor planets 4209 ‐ Briggs, 5177 ‐ Hugowolf and preliminary orbital elements of the unnumbered minor planets 1988 RL4, 1989 CE8 and 1989 DJ are given.
H. Debehogne +2 more
openaire +2 more sources
Journal of Guidance, Control, and Dynamics, 2008
A SURVEY of orbit element sets was conducted as part of a research and technology development task [1] which sought to develop feedback control laws and prototype tools for computing feasible, low-thrust transfers in multibody environments, where at least two celestial bodies exert significant gravitational influence on the spacecraft.
openaire +2 more sources
A SURVEY of orbit element sets was conducted as part of a research and technology development task [1] which sought to develop feedback control laws and prototype tools for computing feasible, low-thrust transfers in multibody environments, where at least two celestial bodies exert significant gravitational influence on the spacecraft.
openaire +2 more sources
Secular Variations of the Orbital Elements
1989If a point satellite is orbiting a master, whose mass distribution is not perfectly spherical, then the elements of the satellite orbit are subject to variations, which depend upon the shape of the master mass. These variations are small when compared to the orbital elements themselves.
openaire +2 more sources
On the determination of meteoroid orbital elements
Planetary and Space Science, 1994The classical method of the determination of the orbital elements of meteoroids is based on a sequence of corrections applied to the velocity vector of an observed meteor. The main aim of such an approach is the determination of the meteoroid's motion under the gravitational influence of the Sun but we are able to observe this motion only under the ...
openaire +2 more sources