Footprint

The land or water area covered by a project. This includes direct physical coverage (i.e., the area on which the project physically stands) and direct effects (i.e., the disturbances that may directly emanate from the project, such as noise).

(1) An estimated area of possible reentry or the solid angle of a detector or linear area of a detector at a certain location. (2) Geographic area in which a focused satellite downlink can be received.

two-dimensional space that any device, equipment, cabinet, or structure occupies or utilizes on a surface

The software portion of computing resources - typically RAM, CPU time, and disk space - required to drive that resource.

In satellite communications, that portion of the Earth's surface over which a satellite antenna delivers a specified amount of signal power under specified conditions. Note: The limiting case of footprint area is somewhat less than one-half the Earth's surface, and depends on the altitude of the satellite.#ifootryc#