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List of Galileo satellites
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<p>This is a list of past and present satellites of the <a href="/facts/Galileo_navigation_system/sPyWl594">Galileo navigation system</a>. The fully operational constellation will nominally consist of 30 satellites in <a href="/facts/Medium_Earth_Orbit/7Qmz5XxG">Medium Earth Orbit</a>, with 24 active and 6 spares equally divided into 3 orbital planes in a Walker 24/3/1 configuration. </p><p>As of September 2024, 32 Galileo (4 <a href="/facts/Galileo_(satellite_navigation)/sPyWl594">In Orbit Validation</a> (IOV) and 28 <a href="/facts/Galileo_(satellite_navigation)/sPyWl594">Full Operational Capability</a> (FOC) satellites have been launched). The 2 <a href="/facts/GIOVE/55M9Wlan"> Galileo In-Orbit Validation Element</a> (GIOVE) prototype vehicles were retired in 2012. Currently, 27 satellites are operational, 4 are not usable and 1 is decommissioned. </p><p>The remaining 6 FOC satellites have completed manufacturing and testing. They are currently in storage awaiting launch by <a href="/facts/Ariane_6/4JJaWjfb">Ariane 6</a>. </p><p>FOC satellites were awarded and built in three batches by <a href="/facts/OHB_SE/FuCSx32h">OHB</a> in <a href="/facts/Bremen/y56P3Pyk">Bremen</a>, Germany, with the contribution of <a href="/facts/Surrey_Satellite_Technology/zW8Gbz1B">Surrey Satellite Technology</a> (SSTL) in <a href="/facts/Guildford/WJNjq3WK">Guildford</a>, United Kingdom. </p> <ol><li>Batch 1 consists of 14 FOC satellites (Galileo-FOC FM1 to Galileo-FOC FM14)</li> <li>Batch 2 consists of 8 FOC satellites (Galileo-FOC FM15 to Galileo-FOC FM22)</li> <li>Batch 3 consists of 12 FOC satellites (Galileo-FOC FM23 to Galileo-FOC FM34)</li></ol> <p>In parallel to Batch 3's completion, the <a href="/facts/Galileo_(satellite_navigation)/sPyWl594">Galileo Second Generation</a> (G2G) satellites, featuring <a href="/facts/Electrically_powered_spacecraft_propulsion/8Qja4u8h">electric propulsion</a>, enhanced navigation signals and capabilities, inter-satellite links and reconfigurability in space, were in development by <a href="/facts/Thales_Alenia_Space/E7JMd8TL">Thales Alenia Space</a> (TAS) and <a href="/facts/Airbus_Defence_and_Space/nwu5qPRe">Airbus Defence and Space</a>, with their deployment expected to begin in 2027. </p>