Glossary

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Satellite image map

Map based on a satellite image (mosaic of several raw SPOT scenes after stringent geometric correction), on which additional information is overlaid. An imagemap usually complies with standard map sizes. Therefore it is only offered for level 2B or “ortho” products in the SPOTView range.

Scene

A SPOT scene is part of the Earth seen by one of the onboard instruments, divided up into elementary scenes of:
- 24,000 lines for 2.5 m products
- 12,000 lines for 5 m products
- 6,000 lines for 10 m products
- 3,000 lines for 20 m products

A SPOT scene covers a surface area around 60 km by 60 to 80 km, depending on the viewing angle.

Sensor

Instrument that gathers the radiative energy (i.e. natural radiation reflectance levels) from a scene and converts it into a measurable electric signal corresponding to the original amount of radiation received.

Spatial resolution

Map based on a satellite image (mosaic of several raw SPOT scenes after stringent geometric correction), on which additional information is overlaid. An imagemap usually complies with standard map sizes. Therefore it is only offered for level 2B or “ortho” products in the SPOTView range.

Supermode

Supermode is a special image acquisition technique that uses two black and white images taken simultaneously with a 5-metre resolution to produce a single image with a 2.5-metre resolution.

System Integrated Programming (SIP)

Spot Image programmes SPOT centrally, accepting requests from all direct receiving stations and other customers. It determines the optimal use of satellite resources depending on the weather (updated every 24 hours), the order in which requests arrive and the priorities attributed.

Systèmes d'Information Géographique pour les Besoins en Environnement et Aménagement (SIGbea)

Geographic Information Systems for environment and land planning and managment

Systems & Defence Electronics

Part of EADS