ELISA (ELectronic Intelligence by SAtellite) is a suite of four French military satellites launched on 17 December 2011 from Arianespace's Kourou spaceport in French Guiana. It consists of microsatellites ELISA 1 (or ELISA W11, COSPAR ID: 2011-076A), ELISA 2 (or ELISA E12, COSPAR ID: 2011-076D), ELISA 3 (or ELISA W23, COSPAR ID: 2011-076C), and ELISA 4 (or ELISA E24, COSPAR ID: 2011-076B)
The entire ELISA suite was launched on a single Soyuz ST-A launch vehicle, along with Pléiades-1 and SSOT. The ELISA program is a demonstrator meant to pave the way for a planned Signals intelligence constellation called CERES. The ELISA satellites are in a Low Earth orbit a few kilometers from each other to record radar and radio transmissions. Since 2014, they have been used as a pre-operational system. [1]
The satellites are built around the Myriade microsatellite bus.
Arianespace SA is a French company founded in 1980 as the world's first commercial launch service provider. It undertakes the operation and marketing of the Ariane programme. The company offers a number of different launch vehicles: the heavy-lift Ariane 6 for dual launches to geostationary transfer orbit, and the solid-fueled Vega series for lighter payloads.
The Guiana Space Centre, also called Europe's Spaceport, is a European spaceport to the northwest of Kourou in French Guiana, a region of France in South America. Kourou is located approximately 310 mi (500 km) north of the equator at a latitude of 5°. In operation since 1968, it is a suitable location for a spaceport because of its equatorial location and open sea to the east.
The National Centre for Space Studies is the French national space agency headquartered in central Paris and it comes under the supervision of the French Ministries of Defence and Research.
Vega is an expendable launch system in use by Arianespace jointly developed by the Italian Space Agency (ASI) and the European Space Agency (ESA). Development began in 1998 and the first launch took place from the Guiana Space Centre on 13 February 2012. It is the 8th most launched small lift launch vehicle in history.
Soyuz-2 is a modernised version of the Soviet Soyuz rocket. In its basic form, it is a three-stage launch vehicle for placing payloads into low Earth orbit. Compared to the previous versions of the Soyuz, the first-stage boosters and two core stages feature uprated engines with improved injection systems. Digital flight control and telemetry systems allow the rocket to be launched from a fixed launch platform, whereas the launch platforms for earlier Soyuz rockets had to be rotated as the rocket could not perform a roll to change its heading in flight.
Essaim was a French military reconnaissance microsatellite constellation. Its main purpose was to collect and map signals intelligence around the world. The Direction générale de l'armement (DGA) described it as a "vacuum cleaner for [radio] waves".
The Ensemble de Lancement Soyouz (ELS) is a launch complex at the Guiana Space Centre in Kourou/Sinnamary, French Guiana. It was used by Soyuz-ST rockets: modified versions of the Soyuz-2 optimised for launch from Kourou under Soyuz at the Guiana Space Centre programme.
The Pléiades constellation is composed of two very-high-resolution optical Earth-imaging satellites. Pléiades-1A and Pléiades-1B provide the coverage of Earth's surface with a repeat cycle of 26 days. Designed as a dual civil/military system, Pléiades will meet the space imagery requirements of European defence as well as civil and commercial needs.
The Satellite System for Terrestrial Observation, Sistema Satelital para Observación de la Tierra (SSOT), also known as FASat-Charlie, is a Chilean satellite which was launched on December 16, 2011. The objective of the SSOT is to have a satellite system for the observation of Earth based on international cooperation.
The French space program includes both civil and military spaceflight activities. It is the third oldest national space program in the world, after the Soviet and American space programs, and the largest space program in Europe.
Myriade is a European miniaturized satellite platform developed by EADS Astrium and CNES. EADS Astrium offers the Myriade bus under the commercial name Astrosat-100. CNES began developing Myriade in 1998, as a continuation of the Proteus program.
LuxSpace is a European space systems contractor based in Betzdorf in Luxembourg. It was founded in November 2004 as a daughter company of OHB AG, and began operations in January 2005.
Composante Spatiale Optique is a French military Earth observation satellite program of third generation. It replaces the Helios 2 satellites. It is sometimes referred to as the MUltinational Space-based Imaging System for Surveillance, Reconnaissance and Observation.
CERES is a French space-based electronic surveillance constellation designed to collect intelligence of electromagnetic origins anywhere in the world. Consisting of three formation-flying satellites, it was developed by Airbus Defence and Space and Thales Alenia Space under the management of the CNES for the French defence procurement agency (DGA).
Soyuz at the Guiana Space Centre was a European Space Agency (ESA) programme for operating Soyuz-ST launch vehicles from Centre Spatial Guyanais (CSG), providing medium-size launch capability for Arianespace to complement the light Vega and heavy-lift Ariane 5. The Soyuz vehicle was supplied by the Roscosmos with TsSKB-Progress and NPO Lavochkin, while additional components were supplied by Airbus, Thales Group and RUAG.
The French Space Command is a formation of the French Air and Space Force, which deals with space issues. It supersedes the Joint Space Command, which was created in 2010.
TARANIS was an observation satellite of the French Space Agency (CNES) which would have studied the transient events produced in the Earth's atmospheric layer between 10 km (6.2 mi) and 100 km (62 mi) altitude. TARANIS was launched in November 2020 with SEOSat-Ingenio aboard Vega flight VV17 and would have been placed in a Sun-synchronous orbit at an altitude of 676 km, for a mission duration of two to four years, but the rocket failed shortly after launch.
Soyuz flight VS22 was a rocket launch conducted by multinational launch service provider Arianespace. It was the sixteenth launch of a Soyuz-ST-B launch vehicle, and the 22nd launch of a Soyuz-2 series launch vehicle from the Ensemble de Lancement Soyouz at the Guiana Space Centre. After two scheduling delays and a 33-minute logistical delay, the rocket lifted off on 4 April 2019, and successfully delivered to medium Earth orbit the final four satellites in the O3b broadband satellite constellation, which services Latin America, Africa, and Oceania. After four previous Soyuz flights delivered the constellation's first sixteen satellites, the launch increased the constellation's throughput by 26 per cent. The flight marked the second occasion in which two Soyuz-2 launch vehicles were launched on the same day, occurring hours after the launch of Progress MS-11 from the Baikonur Cosmodrome.
Vega flight VV16, also called SSMS PoC Flight, was the 16th launch of the Vega rocket. The launch was also notable as it was the first Vega launch following the accident of the VV15 launch in July 2019 that caused the loss of FalconEye1 satellite.
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