An orbital pass (or simply pass) is the period in which a spacecraft is above the local horizon, and thus available for line-of-sight communication with...

orbit to provide telecommunications services. Near-polar orbiting satellites commonly choose a sun-synchronous orbit, where each successive orbital pass...

In quantum mechanics, an atomic orbital (/ˈɔːrbɪtəl/ ) is a function describing the location and wave-like behavior of an electron in an atom. This function...

Earth's radius). Objects in orbits that pass through this zone, even if they have an apogee further out or are sub-orbital, are carefully tracked since...

surface. Even if an orbit remains Sun-synchronous, however, other orbital parameters such as argument of periapsis and the orbital eccentricity evolve...

equatorial orbit, non-inclined orbit that is coplanar with the equator of Earth. List of orbits Geostationary orbit (GEO) Celestial equator Orbital inclination...

Orbital elements are the parameters required to uniquely identify a specific orbit. In celestial mechanics these elements are considered in two-body systems...

gravity would alter the orbit of a passing asteroid such that the asteroid would collide with that planet on a given future orbital pass. The word "keyhole"...

listeners believe that they had bought a mis-pressed album (Orbital 1 packaged as Orbital 2). The album reached #28 on the UK album charts, staying in...

launched a Polaris A-3 ballistic missile in close coordination with an orbital pass of the Gemini 7 astronauts Frank Borman and Jim Lovell. History needed...

orbit at an altitude of 20,200 kilometers (12,600 mi) with an orbital period of almost 12 hours. Geosynchronous orbit (GSO) and geostationary orbit (GEO)...

structures pass through the fissure, and can be damaged in orbital trauma, particularly blowout fractures through the floor of the orbit into the maxillary...

to drag from the Earth's atmosphere, which decreases the orbital altitude. The rate of orbital decay depends on the satellite's cross-sectional area and...

{\displaystyle i} is the orbital inclination, and T {\displaystyle T} is the orbital period. List of orbits Orbital inclination Non-inclined orbit Basics of the...

potentially hazardous asteroid of the Apollo group that makes close orbital passes with Earth. Discovered on 31 March 1989 by American astronomers Henry...

strength needed to stretch from GEO to the surface. Orbital rings use a different mechanism. In the orbital ring version, a kinetic ring is moving around the...

A heliocentric orbit (also called circumsolar orbit) is an orbit around the barycenter of the Solar System, which is usually located within or very near...

An orbital node is either of the two points where an orbit intersects a plane of reference to which it is inclined. A non-inclined orbit, which is contained...

tilt its orbit. Initially, Solar Orbiter will be confined to the same plane as the planets, but each encounter of Venus will increase its orbital inclination...

35-second burn time. Completion of the orbital insertion placed the orbiter in a highly elliptical polar orbit with a period of approximately 35.5 hours...

orbital on one atom overlap with two lobes of an orbital on another atom, and in which this overlap occurs laterally. Each of these atomic orbitals has...

and passes through the inferior orbital fissure to enter the orbit, then passes forward along the floor of the orbit, finally exiting the orbit through...

planets, moons, and comets. Orbital mechanics focuses on spacecraft trajectories, including orbital maneuvers, orbital plane changes, and interplanetary...

palpebral portion can be seen. The orbital lobe of the gland, contains fine interlobular ducts that connect the orbital lobe and the palpebral lobe. They...

except single-stage-to-orbit vehicles cannot get into space on their own, and require a launch vehicle (carrier rocket). On a sub-orbital spaceflight, a space...

sidereal day, however, is equal to its orbital period. Earth's synodic day is the time it takes for the Sun to pass over the same meridian (a line of longitude)...

It is a highly elliptical orbit with an inclination of 63.4 degrees, an argument of perigee of 270 degrees, and an orbital period of approximately half...

In orbital mechanics, a frozen orbit is an orbit for an artificial satellite in which perturbations have been minimized by careful selection of the orbital...

binds the orbital fat pad into the orbit. It also binds the palpebra to the bony orbit. Eyeball Lacrimal gland Extraocular muscles Orbital adipose tissue...

4π2R3 = T2GM and V2R = GM, where R is the radius of orbit in metres; T, the orbital period in seconds; V, the orbital speed in m/s; G, the gravitational constant...