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How much does the spacecraft weigh?

April 26, 2017spacecraft weigh

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How much does the spacecraft weigh?

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At launch, the orbiter had a mass of 2,223 kg, which includes a 118 kg science payload and 925 kg of usable propellent. Over 40% of the orbiter’s mass at launch is for propellent! The probe’s total mass is 339 kg; the probe descent module is 121 kg, including a 30 kg science payload.