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National Aeronautics and Space Administration
Industry: Aerospace
Number of terms: 16933
Number of blossaries: 2
Company Profile:
The Executive Branch agency of the United States government, responsible for the nation's civilian space program and aeronautics and aerospace research.
One type of remote sensing instrument, a passive sensor picks up radiation reflected or emitted by the Earth. The ETM+, TM, and MSS sensors are all examples of a passive remote sensing system.
Industry:Aerospace
Originally, the revenue producing portion of an aircraft's load (passengers, cargo, mail); by extension, that which a spacecraft carries that is separate from the equipment or operations necessary to maintain the spacecraft in orbit.
Industry:Aerospace
Pertaining to or designating the portion of electromagnetic spectrum with wavelengths from the red end of the visible spectrum to the microwave portion of the spectrum, or from 0.7 µm to 1mm. Infrared waves are not visible to the human eye. Longer infrared waves are called thermal infrared waves.
Industry:Aerospace
Pertaining to the technique of executing a set of computer programs such that each program of the set is completed before the next program of the set is started; loosely, sequential processing.
Industry:Aerospace
Pertaining to, concerned with, or limited by time.
Industry:Aerospace
Process by which a tilted or oblique image is projected onto a horizontal reference plane, the angular relation between the image and the plane being determined by ground reconnaissance. For example if the image is taken of an equally spaced rectangular grid pattern, then the rectified image will be an image of an equally spaced rectangular grid pattern.
Industry:Aerospace
Quantities which define the position of a point on the spheroid of reference (for example, the Earth) with respect to the planes of the geodetic equator and of a reference meridian. Commonly expressed in terms of latitude and longitude.
Industry:Aerospace
Radiometric artifacts that affect all detectors in a spectral band, rather than the relative correction for striping of a single detector in the image of a band. When forward and reverse scans are radiometrically different, this uncorrected radiometric artifact is an example of banding. Also see noise and scan-correlated-shift.
Industry:Aerospace
Ratio of radiation emitted by a surface to the radiation emitted by a black body at the same temperature under similar conditions. May be expressed as total emissivity (for all wavelengths), spectral emissivity (as a function of wavelength), or goniometric emissivity (as a function of angle).
Industry:Aerospace
Refers to the momentary time interval during which a detector is able to, or allowed to, sense incoming electromagnetic radiation within its intended instantaneous field of view.
Industry:Aerospace