Viking 1
Spacecraft
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Viking 1 was the first of two spacecraft, along with Viking 2, each consisting of an orbiter and a lander, sent to Mars as part of NASA's Viking program. The lander touched down on Mars on July 20, 1976, the first successful Mars lander in... Wikipedia
Launch date: August 20, 1975 at 5:22 PM EDT
Cost: 1 billion USD (1970)
Manufacturer: Jet Propulsion Laboratory
Max speed: 8,948 mph
Arrival date: June 19, 1976
Apoareion altitude: 56,000 km (35,000 mi)
Dry mass: Orbiter: 883 kg (1,947 lb); Lander: 572 kg (1,261 lb)