Kosmos 18
Kosmos 18 was a Soviet satellite launched in 1963 as part of the Kosmos program. Its primary mission was the development and testing of elements of orientation and stabilization systems for future spacecraft, specifically for the development of attitude control and stabilization systems. It was an early technological development platform focusing on improving the performance and reliability of space-based systems. Specifically, it contributed to the understanding of how to maintain a spacecraft's desired orientation in space through active and passive control methods. The data collected from Kosmos 18 was crucial for improving the accuracy and stability of subsequent Soviet space missions. Its launch date was October 18, 1963, and it re-entered the Earth's atmosphere and decayed on October 25, 1963.