Tags: Artificialsatellite, Satellite.
Little Joe 1A (LJ-1A) was an unmanned rocket launched as part of NASA’s Mercury program on November 4 1959. This flight a repeat of the Little Joe 1 (LJ-1) launch was to test a launch abort under high aerodynamic load conditions. After lift-off the pressure sensing system was to indicate when the correct abort dynamic pressure was reached. This should have happened about thirty seconds after launch. A signal was sent to the explosive bolts to separate the spacecraft from the launch vehicle.
