SNAP-10A
Orbiter
SNAP-10A was a US experimental nuclear powered satellite launched into space in 1965 as part of the SNAPSHOT program. The test marked both the world's first operation of a nuclear reactor in orbit, and the first operation of an ion thruster system... Wikipedia
Launch date: April 3, 1965
Perigee altitude: 1,268 km (788 mi)
COSPAR ID: 1965-027A
Inclination: 90.2°
Last contact: May 16, 1965
Launch mass: 440 kg (970 lb)
Mission duration: 43 days