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Aerospace
Industry that includes methods of travel and spacecraft for navigating the air or space.
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Aerospace > 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 ...
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 ...
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 ...
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 ...
Sub-categories
- Control systems (1744)
- Satellites (11359)
- Space flight (8863)
- Space shuttle (354)