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

Infrared (IR)

Aerospace; Satellites

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. ...

Geodetic coordinates

Aerospace; Satellites

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 ...

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 ...

Payload

Aerospace; Satellites

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 ...

Passive sensor

Aerospace; Satellites

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.

Detector responsivity

Aerospace; Satellites

The radiometric response of an electronic detector that converts photons into voltage or current. Detector responsivity includes the end-to-end optical and electrical path, since radiometric ...

Cross-calibration

Aerospace; Satellites

The radiometrical comparison of one sensor to another sensor on different satellites. Imagers are often considered to be cross-calibrated if they are calibrated to a common source such as an ...