In orbital mechanics, low-thrust relative transfer is an orbital maneuver in which a chaser spacecraft covers a specific relative distance relative to...

orbital lifetime of the spent booster so as to curtail space junk. If using low-thrust engines such as electrical propulsion to get from the transfer...

intended orbital changes using impulsive maneuvers that greatly reduces the complexity of finding the correct orbital transitions. Applying a low thrust over...

astronautics, the Hohmann transfer orbit (/ˈhoʊmən/) is an orbital maneuver used to transfer a spacecraft between two orbits of different altitudes around...

acceleration to reach orbital speed. Higher energy orbits like geostationary orbit are often reached via elliptical transfer orbits. One type of orbit insertion is...

propellant at low potential energy/high speed multiplies the effect of a burn. Thus for example the delta-v for a Hohmann transfer from Earth's orbital radius...

low thrust. For the case of orbital transfer between non-coplanar orbits, the change-of-plane thrust must be made at the point where the orbital planes...

}{2a}}\end{aligned}}} where v {\displaystyle v} is the relative orbital speed; r {\displaystyle r} is the orbital distance between the bodies; μ = G ( m 1 + m 2...

astrodynamics, orbital station-keeping is keeping a spacecraft at a fixed distance from another spacecraft or celestial body. It requires a series of orbital maneuvers...

notable that large thrust can reduce gravity drag. Delta-v is also required to keep satellites in orbit and is expended in propulsive orbital stationkeeping...

In orbital mechanics a near-rectilinear halo orbit (NRHO) is a halo orbit that passes close to the smaller of two bodies and has nearly stable behavior...

accelerating spacecrafts beyond orbital speed, reaching escape velocity relative to Earth at 11.2 km/s, entering heliocentric orbit, possibly accelerating further...

a spacecraft to burn its fuel is at the lowest possible orbital periapsis, when its orbital velocity (and so, its kinetic energy) is greatest. In some...

the transfer orbit's departure speed and the departure planet's heliocentric orbital speed. Once this is determined, the injection velocity relative to...

parabola, or hyperbola, which forms a two-dimensional orbital plane in three-dimensional space. A Kepler orbit can also form a straight line. It considers only...

with 10 to 100 N of thrust have been investigated by SART. Reusable Orbital Transfer Vehicles (OTV), sometimes called (inter-orbital) space tugs, propelled...

elements. In some situations, description of orbital motion can be simplified and approximated by choosing orbital elements that are not osculating. Also,...

good choice whenever large amounts of thrust are needed and cost is an issue. The Space Shuttle and many other orbital launch vehicles use solid-fueled rockets...

a low Earth orbit of 200 km). The required additional change in speed, however, is far less because the spacecraft already has a significant orbital speed...

speeds are required, such as orbital speed at approximately 7,800 m/s (28,000 km/h; 17,000 mph). Spacecraft delivered into orbital trajectories become artificial...

match of the orbital velocities and position vectors of the two spacecraft, allowing them to remain at a constant distance through orbital station-keeping...

angular orbital velocity equals its angular rotational velocity so that the Sun's apparent motion ceases; closer to perihelion, Mercury's angular orbital velocity...

The familiar study of jet aircraft treats jet thrust with a "black box" description which only looks at what goes into the jet engine, air and fuel, and...

gravitational slingshot in orbital mechanics, is a type of spaceflight flyby which makes use of the relative movement (e.g. orbit around the Sun) and gravity...

high thrust, low specific impulse chemical rockets and low thrust, high specific impulse electric propulsion, but has not yet demonstrated high thrust. The...

direction), which increases/decreases altitude of orbit. Perpendicular to orbital plane, which changes orbital inclination.[citation needed] Earth's surface...

A rocket engine is a reaction engine, producing thrust in accordance with Newton's third law by ejecting reaction mass rearward, usually a high-speed jet...

in an orbit similar to that of Mercury and will remain in the general vicinity of Mercury (see [1]). Four final thrust arcs reduce the relative velocity...

second-stage in an elliptical geocentric orbit with a low-perigee, thus ensuring rapid orbital decay and avoiding long-term orbital debris from spent rocket bodies...

which provide the thrust to overcome the force of gravity and propel spacecraft onto suborbital trajectories. If the mission is orbital, the spacecraft...