Satellites

Satellites

Of or relating to any man-made object launched to orbit Earth or another celestial body.

Industry: Aerospace

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Satellites

enhanced thematic mapper plus (ETM+)

Aerospace; Satellites

The sensor aboard Landsat 7 that picks up solar radiation reflected by, or emitted from the Earth.

resolution cell

Aerospace; Satellites

The smallest, most elementary areal constituent of the grey shades considered by an investigator in an image. A resolution cell is referenced by its spatial coordinates. The resolution cell or ...

field-of-view

Aerospace; Satellites

The solid angle through which an instrument is sensitive to radiation. See instantaneous field of view, and resolution.

standard deviation (SD)

Aerospace; Satellites

The square root of the variance. The value is expressed in the units of measure in which the observations were taken.

scan line length

Aerospace; Satellites

The time of a forward or reverse scan on an imager such as TM or ETM+. In order to make the geometric calibration easier, there is an active scan time (AST) and a turn-around time (TAT) for each ...

geometric correction

Aerospace; Satellites

The transformation of image data, such as Landsat data, to match spatial relationships as they are on the Earth. Includes correction for band-to-band offsets, line length, Earth rotation, and ...

registration

Aerospace; Satellites

The translation-rotation rectification alignment process by which two images of like geometries and of the same set of objects are positioned coincident with respect to one another so that ...