For instance it is the most common way to transfer satellites into geostationary orbit, after first being " parked " in low earth orbit.

For example, for ground stations at latitudes of φ = ± 45 ° on the same meridian as the satellite, the time taken for a signal to pass from Earth to the satellite and back again can be computed using the cosine rule, given the geostationary orbital radius r ( derived below ), the Earth's radius R and the speed of light c, as

For synchronous satellites orbiting Earth, this is also known as a geostationary orbit.

For areas close to the North ( and South ) Pole, a geostationary satellite may appear below the horizon.

For comparison, geostationary satellites orbit Earth at 35, 790 km.

For geostationary spacecraft the inclination change caused by the gravitational forces of Sun / Moon must be counteracted to a rather large expense of fuel as the inclination should be kept sufficiently small for the spacecraft to be tracked by a non-steerable antenna.

For geostationary spacecraft the eccentricity must be kept sufficiently small for a spacecraft to be tracked with a non-steerable antenna.

For geostationary spacecraft thruster burns orthogonal to the orbital plane must be executed to compensate for the effect of the lunar / solar gravitation that perturbs the orbit pole with typically 0. 85 degrees per year.

For satellites in geostationary orbit and geosynchronous orbits, the graveyard orbit is a few hundred kilometers above the operational orbit.

For example, an adiabatic boundary is a boundary that is impermeable to heat transfer and the system is said to be adiabatically ( or thermally ) insulated ; an insulated wall approximates an adiabatic boundary.

For his PhD thesis, he co-developed rsync, including the rsync algorithm, a highly efficient file transfer and synchronization tool.

For example, in one document, Seagate specifies data transfer rates of some of its hard drives in both IEC and decimal units.

For example drive straps are now commonly employed to transfer torque as well as lift the pressure plate upon disengagement of vehicle drive.

For instance, Mail transfer agents use DNS to find out where to deliver e-mail for a particular address.

For instance, the metal atoms in a radio transmitter appear to transfer energy continuously.

For OECD countries, in the late 2000s, considering the effect of taxes and transfer payments, the income Gini coefficient ranged between 0. 24 to 0. 49, with Slovenia the lowest and Chile the highest.

For example, HTTP / 1. 1 introduced chunked transfer encoding to allow content on persistent connections to be streamed rather than buffered.

For many years economical interplanetary travel meant using the Hohmann transfer orbit.

For example CP / M machines used many different floppy disk formats, which meant that one machine could not normally read disks from another CP / M machine, and Kermit was used as part of a process to enable the transfer of applications and data between CP / M machines and other machines with different operating systems.

For example, as a lessee of a particular piece of property, you may not sell the property, because a tenant is only in possession and does not have title to transfer.

For instance, if the force vector in the drive phase is aimed too far away from the centre of mass of the body, it will transfer an angular momentum to the body which has to be absorbed.

For example, a personal injuries insurance policy does not transfer the risk of a car accident to the insurance company.

For instance, the obsolete scientific theory that put forward an understanding of heat transfer in terms of the movement of caloric fluid was eliminated when a theory of heat as energy replaced it.

For example, Linear Tape-Open ( LTO ) supported continuous data transfer rates of up to 140 MB / s, comparable to hard disk drives.

For example, acoustics is distinguished from optics in that sound waves are related to a mechanical rather than an electromagnetic wave transfer caused by vibration.

For home use the largest demand for new services was video and voice transfer, but the ISDN basic rate lacks the necessary channel capacity.

For the second class, subjects were to be chosen from ordinary life ... In this idea originated the plan of the ' Lyrical Ballads '; in which it was agreed, that my endeavours should be directed to persons and characters supernatural, or at least Romantic ; yet so as to transfer from our inward nature a human interest and a semblance of truth sufficient to procure for these shadows of imagination that willing suspension of disbelief for the moment, which constitutes poetic faith.

" For example, a pregnant woman with an emergency condition must be treated until delivery is complete, unless a transfer under the statute is appropriate.

For example: If 16 homing pigeons are given 8 32GB SD cards each, and take an hour to reach their destination, the throughput of the transfer would be 9320Mbit / s, excluding transfer to and from the SD cards.

The transfer principle states that true first order statements about R are also valid in * R. For example, the commutative law of addition, x + y = y + x, holds for the hyperreals just as it does for the reals ; since R is a real closed field, so is * R. Since for all integers n, one also has for all hyperintegers H. The transfer principle for ultrapowers is a consequence of Łoś ' theorem of 1955.

For example " RETR filename " would transfer the specified file from the server to the client.

For the rest of the two spacecrafts ' pass over the near side of the Moon, Mattingly prepared to shift Casper to a circular orbit while Young and Duke prepared Orion for the descent to the lunar surface.

For example, NASA's workhorse space shuttle used cryogenic hydrogen / oxygen propellant as its primary means of getting into orbit, and all of the rockets built for the Soviet space program by Sergei Korolev used liquid oxygen as their oxidiser.

For a satellite in orbit around a planet, the centripetal force is supplied by gravity.

For non-circular orbits or trajectories, only the component of gravitational force directed orthogonal to the path ( toward the center of the osculating circle ) is termed centripetal ; the remaining component acts to speed up or slow down the satellite in its orbit.

For example, the Ruelle – Takens scenario describes how a periodic orbit bifurcates into a torus and the torus into a strange attractor.

For example, if there is a triple star system in which two stars orbit each other closely while a third star is in a more distant orbit, the two closely orbiting stars would be considered a component with two subcomponents.

For example, the planets that orbit the pulsar PSR 1257 are often referred to with capital rather than lowercase letters.

For example, a detector with the mass of Jupiter and 100 % efficiency, placed in close orbit around a neutron star, would only be expected to observe one graviton every 10 years, even under the most favorable conditions.

For instance, the motion of a spacecraft, regarding its orbit and attitude ( rotation ), is described by the relativistic theory of classical mechanics, while the analogous movements of an atomic nucleus are described by quantum mechanics.

For example, perigee and apogee are the lowest and highest parts of an orbit around Earth, while perihelion and aphelion are the closest and farthest points of an orbit around the Sun.

For any specific combination of height above the center of gravity and mass of the planet, there is one specific firing velocity ( unaffected by the mass of the ball, which is assumed to be very small relative to the Earth's mass ) that produces a circular orbit, as shown in ( C ).

# For a given orbit, the ratio of the cube of its semi-major axis to the square of its period is constant.

For example, the 3 numbers which describe the body's initial position, and the 3 values which describe its velocity will describe a unique orbit that can be calculated forwards ( or backwards ).

For example, the orbit of the Moon cannot be accurately described without allowing for the action of the Sun's gravity as well as the Earth's.

For precession of the lunar orbit see lunar precession.

For rocket-powered SSTO, the main challenge is achieving a high enough mass-ratio to carry sufficient propellant to achieve orbit, plus a meaningful payload weight.

For air-breathing SSTO, the main challenge is system complexity and associated research and development costs, material science, and construction techniques necessary for surviving sustained high-speed flight within the atmosphere, and achieving a high enough mass-ratio to carry sufficient propellant to achieve orbit, plus a meaningful payload weight.

For pure rocket approaches Tsiolkovsky's rocket equation shows that dead weight will prevent reaching orbit unless the ratio of propellant to structural mass ( called mass ratio ) is very high — between about 10 and 25 ( i. e. 24 parts propellant weight to 1 part structural weight ; depending on propellant choice ).

For example, no new evidence will demonstrate that the Earth does not orbit around the sun ( heliocentric theory ), or that living things are not made of cells ( cell theory ), that matter is not composed of atoms, or that the surface of the Earth is not divided into solid plates that have moved over geological timescales ( the theory of plate tectonics )... One of the most useful properties of scientific theories is that they can be used to make predictions about natural events or phenomena that have not yet been observed.

For missions beyond low Earth orbit NASA is building the Space Launch System and the Orion spacecraft.