Explorer 7 was designed to measure solar x-ray and Lyman-alpha flux, trapped energetic particles, and heavy primary cosmic rays. Secondary objectives included collecting data on micrometeoroid penetration, molecular sputtering and studying the Earth-atmosphere heat balance.
Low Earth OrbitSuborbital flight with the objective of testing the Mercury spacecraft ablative heat shield. The Atlas booster section failed to jettison, leading to a lower apogee. It was nonetheless sufficient to satisfy the Mercury spacecraft team.
SuborbitalLittle Joe 1 (LJ-1) was a failed launch of a Little Joe by NASA, a solid fuel rocket that was designed for a Max Q abort and Launch Escape System test for Mercury capsule. The objective was to determine how well the escape rocket would function under the most severe dynamic loading conditions anticipated during a Mercury-Atlas launching.
Suborbital