Days
Hours
Mins
Secs
The Navy was competed with the Army to put the first American satellite into orbit. Their first two Vanguard missions failed, with the second being a highly publicized failure, as it exploded on the launchpad. They went on to put 3 satellites into orbit but did not beat the Army to be the first. Their work in space continues today largely on military satellites.
The Vanguard satellite was a 13 inch spherical satellite which contained a precise magnetometer to map the Earth's magnetic field. The satellite was lost together with the Vanguard Balloon when the Vanguard launch vehicle second stage was damaged during staging.
Height 23.00 Meters
Max Stages 3
Mass To GTO 0 kg
Liftoff Thrust 123 kN
Diameter 1.14 Meters
Mass To LEO 9 kg
Liftoff Mass 10 Tonnes
Launch Success 3
Consecutive Success 1
Maiden Flight 1957-10-23
Launch Failures 8