Orbit modeling is the process of creating mathematical models to simulate motion of a massive body as it moves in orbit around another massive body due...

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...

In chemistry, molecular orbital theory (MO theory or MOT) is a method for describing the electronic structure of molecules using quantum mechanics. It...

including precise orbit modeling, 2D and 3D visualization, sensor modeling, maneuver modeling, maneuver estimation, plotting, orbit determination, tracking...

certain orbital regions unusable and threatening the sustainability of space activities for many generations. In 2009, Kessler wrote that modeling results...

impossible to predict where Earth would be in its orbit in just over 100 million years' time. Modeling the Solar System is a subject covered by the n-body...

gravitational orbit classified by various characteristics. The following is a list of types of orbits: Galactocentric orbit: An orbit about the center...

In celestial mechanics, an orbit (also known as orbital revolution) is the curved trajectory of an object such as the trajectory of a planet around a star...

Military simulation Modeling and Simulation Coordination Office Operations research Orbit modeling Power system simulation Rule-based modeling Simulation Interoperability...

Orbiter is a space flight simulator program developed to simulate spaceflight using realistic Newtonian physics. The simulator was released on 27 November...

In celestial mechanics, a Kepler orbit (or Keplerian orbit, named after the German astronomer Johannes Kepler) is the motion of one body relative to another...

A medium Earth orbit (MEO) is an Earth-centered orbit with an altitude above a low Earth orbit (LEO) and below a high Earth orbit (HEO) – between 2,000...

The orbital period (also revolution period) is the amount of time a given astronomical object takes to complete one orbit around another object. In astronomy...

gradually developed, including Gabbard diagrams, to improve the modeling of orbital evolution and decay. When the NORAD database became publicly available...

great astronomical almanacs. Special perturbations are also used for modeling an orbit with computers. Cowell's formulation (so named for Philip H. Cowell...

shell model starts with an average potential with a shape somewhere between the square well and the harmonic oscillator. To this potential, a spin-orbit term...

Orbital mechanics or astrodynamics is the application of ballistics and celestial mechanics to the practical concerning the motion of rockets, satellites...

The σ-π model and equivalent-orbital model refer to two possible representations of molecules in valence bond theory. The σ-π model differentiates bonds...

process of developing a mathematical model is termed mathematical modeling. Mathematical models are used in applied mathematics and in the natural sciences...

possible structure of the atom included planetary models with orbiting charged electrons.: 35  These models faced a significant constraint. In 1897, Joseph...

number. A number of models for the nucleus have also been proposed in which nucleons occupy orbitals, much like the atomic orbitals in atomic physics theory...

the center. Under most geocentric models, the Sun, Moon, stars, and planets all orbit Earth. The geocentric model was the predominant description of...

three-line element set (3LE) is a data format encoding a list of orbital elements of an Earth-orbiting object for a given point in time, the epoch. Using a suitable...

The Moon orbits Earth in the prograde direction and completes one revolution relative to the Vernal Equinox and the fixed stars in about 27.3 days (a tropical...

(PHO) is a near-Earth object – either an asteroid or a comet – with an orbit that can make close approaches to the Earth and which is large enough to...

A geostationary orbit, also referred to as a geosynchronous equatorial orbit (GEO), is a circular geosynchronous orbit 35,786 km (22,236 mi) in altitude...

in the anatomical orbit of shapes and forms and resulting observations through the medical imaging devices. Such a random orbit model in which randomness...

Retrieved 19 May 2011. Imbrie J, Imbrie JZ (February 1980). "Modeling the climatic response to orbital variations". Science. 207 (4434): 943–53. Bibcode:1980Sci...

inert and behaves like ordinary alkanes. An alternative model utilizes semi-localized Walsh orbitals in which cyclopropane is described as a carbon sp2 sigma...

Orbital decay is a gradual decrease of the distance between two orbiting bodies at their closest approach (the periapsis) over many orbital periods. These...