Parameters - Longitude Of The Periapsis

Longitude of the periapsis This article may be confusing or unclear to readers. Please help us clarify the article; suggestions may be found on the talk page. (July 2009) In celestial mechanics, the longitude of the periapsis (symbolized ϖ) of an orbiting body is the longitude (measured from the point of the vernal equinox) at which the periapsis (closest approach to the central body) would occur if the body's inclination were zero. For...

Read More

Parameters - Argument Of Periapsis

Argument of periapsis The argument of periapsis (also called argument of perifocus or argument of pericenter), symbolized as ω, is one of the orbital elements of an orbiting body. Specifically, ω is the angle between the orbit's periapsis (the point of closest approach to the central point) and the orbit's ascending node (the point where the body crosses the plane of reference from South to North). The angle is measured in the orbital plane...

Read More

Parameters - Longitude Of The Asending Node

Longitude of the ascending node This article may be confusing or unclear to readers. Please help us clarify the article; suggestions may be found on the talk page. (July 2009) The longitude of the ascending node. The longitude of the ascending node (☊ or Ω) is one of the orbital elements used to specify the orbit of an object in space. It is the angle from a reference direction, called the origin of longitude, to the direction...

Read More

Paramaters - Azimuth

Azimuth The azimuth is the angle formed between a reference direction (North) and a line from the observer to a point of interest projected on the same plane as the reference direction An azimuth (i/ˈæzɪməθ/) is an angular measurement in a spherical coordinate system. The vector from an observer (origin) to a point of interest is projected perpendicularly onto a reference plane; the angle between the projected vector and a reference vector...

Read More

Parameters - Horizontal Coordinate System

Horizontal coordinate system Azimuth is measured from the north point (sometimes from the south point) of the horizon around to the east; altitude is the angle above the horizon. The horizontal coordinate system is a celestial coordinate system that uses the observer's local horizon as the fundamental plane. This coordinate system divides the sky into the upper hemisphere where objects are visible, and the lower hemisphere where objects...

Read More

Parameters - Orbital inclination Change

Orbital inclination change Orbital inclination change is an orbital maneuver aimed at changing the inclination of an orbiting body's orbit. This maneuver is also known as an orbital plane change as the plane of the orbit is tipped. This maneuver requires a change in the orbital velocity vector (delta v) at the orbital nodes (i.e. the point where the initial and desired orbits intersect, the line of orbital nodes is defined by the intersection of the two orbital planes). In general, inclination changes can take a very large amount of...

Read More

Parameters - Orbital Inclination

Orbital inclination Fig. 1: One view of inclination i (green) and other orbital parameters Inclination in general is the angle between a reference plane and another plane or axis of direction. &nb...

Read More

Parameters - Eccentricity

Orbital eccentricity An elliptic Kepler orbit with an eccentricity of 0.7 (red ellipse), a parabolic Kepler orbit (green) and a hyperbolic Kepler orbit with an eccentricity of 1.3 (blue outer line) The orbital eccentricity of an astronomical object is a parameter that determines the amount by which its orbit around another body deviates from a perfect circle. A value of 0 is a circular orbit, values between 0 and 1 form an elliptical...

Read More

Parameters - Apsis

Apsis "Apogee", "Aphelion", "Perigee" and "Perihelion" redirect here. For the literary journal, see Perigee: Publication for the Arts. For Edenbridge's Album, see Aphelion (album). For the architectural term, see Apse. For other uses, see Apogee (disambiguation) and Perihelion (disambiguation). Apsides 1) Apoapsis; 2) Periapsis; 3) Focus An apsis (Greek ἁψίς, gen. ἁψίδος), plural apsides (/ˈæpsɨdiːz/; Greek: ἁψίδες), is a point of greatest...

Read More

Parameters - Semi-minor Axis

Semi-minor axis The semi-major (in red*) and semi-minor axis (in blue*) of an ellipse. (* on some browsers) In geometry, the semi-minor axis (also semiminor axis) is a line segment associated with most conic sections (that is, with ellipses and hyperbolas) that is at right angles with the semi-major axis and has one end at the center of the conic section. It is one of the axes of symmetry for the curve: in an ellipse, the shorter one;...

Read More

Parameters - Semi-major Axis

Semi-major axis The semi-major and semi-minor axis of an ellipse In geometry, the major axis of an ellipse is the longest diameter: a line (line segment) that runs through the center and both foci, with ends at the widest points of the shape. The semi-major axis is one half of the major axis, and thus runs from the centre, through a focus, and to the edge of the ellipse; essentially, it is the radius of an orbit at the orbit's two most...

Read More

Orbit - Two-line Element Set

Two-line element se...

Read More

Orbit - Tundra Orbit

Tundra orb...

Read More

Orbit - Polar Orbit

Polar orbi...

Read More

Orbit - Orbit Of The Moon

Orbit of the Moo...

Read More

Orbit - Molniya Orbit

...

Read More

Orbit - High Earth Orbit

High Earth orbi...

Read More

Orbit - Medium Earth Orbit

Medium Earth orb...

Read More

Orbit - Low Earth Orbit

...

Read More

Orbit - Geostationary Orbit

Geostationary orbit Geostationary orbits (top view). To an observer on the rotating Earth, both satellites appear stationary in the sky at their respective locations. Geostationary orbits (side view) A 5 × 6 degree view of a part of the geostationary belt, showing several geostationary satellites. Those with inclination 0 degrees form a diagonal belt across the image; a few objects with small inclinations to the Equator...

Read More

Orbit - Geosynchronous Orbit

Geosynchronous orbi...

Read More

Orbit - Sun-synchronous Orbit

Sun-synchronous orb...

Read More

Orbit - Heliocentric Orbit

Heliocentric orb...

Read More

Orbit - Lunar Orbit

Lunar orb...

Read More

Orbit - Lissajous Orbit

Lissajous orbi...

Read More

Orbit - Halo Orbit

Halo orbi...

Read More

Orbit - Aerostationary Orbit

Areostationary orbi...

Read More

Orbit - Aerosynchronous Orbit

Areosynchronous orbit Areosynchronous orbits are class of synchronous orbits for artificial satellites around the planet Mars. As with all synchronous orbits, an areosynchronous orbit has an orbital period equal in length to Mars's sidereal day. A satellite in areosynchronous orbit does not necessarily maintain a fixed position in the sky as seen by an observer on the surface of Mars, however such a satellite will return to the same apparent position every Martian day. The orbital altitude required to maintain an areosynchonous orbit is...

Read More

Orbit - Synchronous Orbit

Synchronous orb...

Read More

Orbit - Parking Orbit

...

Read More

Orbit - Osculating Orbit

...

Read More

Orbit - Inclined Orbit

...

Read More

Orbit - Hyperbolic Trajectory

...

Read More

Orbit - Graveyard Orbit

...

Read More

Orbit - Parabolic Trajectory

...

Read More

Orbit - Highly Elliptical Orbit

...

Read More

Orbit - Elliptic Orbit

Elliptic orbi...

Read More

Orbit - Circular Orbit

Circular orbit A circular orbit is depicted in the top-left quadrant of this diagram, where the gravitational potential well of the central mass shows potential energy, and the kinetic energy of the orbital speed is shown in red. The height of the kinetic energy remains constant throughout the constant speed circular orbit. For other meanings of the term "orbit", see orbit (disambiguation) A circular orbit is the orbit at a fixed...

Read More