ELISA (ELectronic Intelligence by SAtellite) is a suite of four Frenchmilitary satellites launched on 17 December 2011 fromArianespace'sKourou spaceport inFrench Guiana.It consists ofmicrosatellitesELISA 1 (orELISA W11,COSPAR ID: 2011-076A),ELISA 2 (orELISA E12, COSPAR ID: 2011-076D),ELISA 3 (orELISA W23, COSPAR ID: 2011-076C), andELISA 4 (orELISA E24, COSPAR ID: 2011-076B)

The entire ELISA suite was launched on a singleSoyuz ST-Alaunch vehicle, along withPléiades-1 andSSOT. The ELISA program is ademonstrator meant to pave the way for a plannedSignals intelligence constellation calledCERES. The ELISA satellites are in aLow Earth orbit a few kilometers from each other to recordradar andradio transmissions. Since 2014, they have been used as a pre-operational system.^[1]

The satellites are built around theMyriade microsatellite bus.

• ESSAIM - another French military SIGINT microsatellite project
• CERES - the follow-on French space-based SIGINT program

• http://space.skyrocket.de/doc_sdat/elisa.htm
• https://web.archive.org/web/20161018011750/https://elisa.cnes.fr/en/web/CNES-en/5940-elisa.php
• http://www.arianespace.com/press-release/arianespace-vso2-mission-soyuz-sta-orbits-pleiades-1a-elisa-and-ssot/

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