Gaia
Spacecraft
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Gaia is a space observatory of the European Space Agency, launched in 2013 and expected to operate until 2025. Wikipedia
Manufacturer: European Space Agency
Launch date: 2013
Cost: 650 million EUR
Launch site: ELS - Soyuz Launchpad
Apoapsis altitude: 707,000 km (439,000 mi)
Band: S Band (TT&C support); X Band (data acquisition)
Bandwidth: a few kbit/s down & up (S Band); 3–8 Mbit/s download (X Band)