Radarsat satellite
Canadian-built Earth observation satellite used to monitor environmental changes and natural resource use.
solar array
Power supply device that converts solar energy into immediately usable electrical energy.
radar antenna
Antenna designed to emit electromagnetic wave beams and to capture the echo reflected by the Earth’s surface.
remote command antenna
Type of antenna that allows the ground operation center to transmit commands to the satellite.
Sun sensor
Instrument that positions the solar panels in the direction of the Sun to capture its energy.
Earth sensor
Instrument that locates the Earth’s horizon so that the radar antenna can be positioned correctly.
thruster
Piece of equipment that generates the impetus required to move the satellite.
X-band antenna
Type of antenna that emits and receives extremely high-frequency waves.
bus module
Section of the satellite connected to the payload and equipped with the resources needed to make it function.
payload module
Section of the satellite that houses detection materials and maintenance equipment.
radar beam
Collective term for the fan-shaped trajectories of electromagnetic waves emitted in a given direction by a radar.
sensor swath
Width of the Earth’s surface observed during the passage of a satellite.
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