Demeter

Detection of Electro-Magnetic Emissions Transmitted from Earthquake Regions

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General

Designation	28368 / 04025C
Launch date	29 Jun 2004
Country of origin	France
Mission	Scientific: ionosphere study
Perigee/Apogee	700 km, sunsynchronous
Inclination	98.3°
Period	99 min
Launch vehicle	Dnepr #4

To measure high-altitude electric and magnetic signals which coincide or immediately follow seismic or volcanic activity.

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External resources

http://smsc.cnes.fr/DEMETER/

sat-index articles

Technical data

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Specifications

Prime contractor	Astrium
Platform	Myriade
Mass at launch	125 kg
Mass in orbit
Dimension
Solar array	180 W
Stabilization
DC power
Design lifetime	2 years

S-band command and telemetry (2208 MHz) and X-band data downlink (16.8 Mbps).

Carries a set of 3 magnetic sensors (IMSC), magnetic sensors (ICE), a plasma analyser (IAP), a Langmuir probe (ISL) and a particle detector (IDP).

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