elevation angle
111Maxwell–Boltzmann distribution — Maxwell–Boltzmann Probability density function Cumulative distribution function parameters …
112Culmination — In astronomy, the culmination of a planet, star, constellation, etc. is the altitude (or elevation angle) reached when the object transits over an observer s meridian[citation needed]. During a sidereal day, an astronomical object will cross the… …
113Shadow — A shadow is an area where direct light from a light source cannot reach due to obstruction by an object. It occupies all of the space behind an opaque object with light in front of it. The cross section of a shadow is a two dimensional silhouette …
114Field artillery team — In the land based field artillery, the field artillery team is organized to direct and control indirect fire artillery fire on the battlefidirect artillery fire, three distinct components have evolved in this organization, the forward observer… …
115Gisement (navigation) — Pour les articles homonymes, voir Gisement. Schéma Gisement combiné à Nv/Nm/Nc En navigation, le gisement est l angle formé entre l axe longitudinal (ou ligne de foi) d un navire ou d un aéronef, et la direction d un point …
116Missile Approach Warning — A Missile Approach Warning system is part of the avionics package on some military aircraft. A sensor detects attacking missiles. Its automatic warning cues the pilot to make a defensive maneuver and deploy the available countermeasures to… …
117Satellite radio — is an analogue or digital radio signal that is relayed through one or more satellites and thus can be received in a much wider geographical area than terrestrial FM radio stations. While in Europe many primarily FM radio stations provide an… …
118Apsis — For the architectural term, see Apse. Aphelion and Perihelion redirect here. For Edenbridge s Album, see Aphelion (album). Apogee and Perigee redirect here. For the literary journal, see Perigee: Publication for the Arts. For other uses, see… …
119Direct insolation — US annual average solar energy received by a latitude tilt photovoltaic cell (modeled). Direct insolation is the solar irradiance measured at a given location on Earth with a surface element perpendicular to the Sun s rays, excluding diffuse… …
120Vertical plane — is used in radio to plot an antenna s relative field strength perpendicular to the ground (which directly affects a station s coverage area) on a polar graph. Normally the maximum of 1.000 or 0 dB is at the side (unless there is beam tilt), which …
