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Spektr-RG

Spacecraft
Spektr-RG is a Russian–German high-energy astrophysics space observatory which was launched on 13 July 2019. It follows on from the Spektr-R satellite telescope launched in 2011. Wikipedia
Launch date: July 13, 2019 at 8:31 AM EDT
Cost: 600 million USD (2019)
Speed on orbit: 10.07 miles/s
Launch mass: 2,712 kg (5,979 lb)
Mission duration: Planned: 6.5 years; Elapsed: 4 years, 8 months, 10 days