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

radiometric emissive band calibration

Aerospace; Satellites

Equations converting unitless digital numbers (DN) from the satellite imager to brightness temperature, a measure of the amount of energy being radiated by the target. Brightness temperature is not ...

multispectral

Aerospace; Satellites

Generally denotes remote sensing in two or more spectral bands, such as visible and infrared.

nonsystematic distortion

Aerospace; Satellites

Geometric irregularities on images that are not constant and cannot be predicted from the characteristics of the imaging system. For example: parallax distortions caused by topography.

altitude

Aerospace; Satellites

height above a datum, the datum usually being mean sea level. Not the same as elevation, for altitude generally refers to points above the Earth's surface rather than those on it. Compare with ...

focal plane

Aerospace; Satellites

In an instrument such as the Enhanced Thematic Mapper Plus (ETM+), the plane occupied by the detectors, and on which the radiances to be sensed are incident.

kilobyte (Kb)

Aerospace; Satellites

In decimal systems kilo stands for 1,000, but in binary systems a kilo is 1,024 (2 to the 10th power). Technically a kilobyte is 1,024 bytes but is often used loosely as a synonym for 1,000 bytes. ...

cluster

Aerospace; Satellites

In image processing, a homogeneous group of units, which are very "like" one another. "Likeness" among units is usually determined by the association, similarity, or distance separating the ...