Space surveillance, SSA & SDA glossary

Welcome to Look Up’s space surveillance glossary a practical reference designed to make complex SDA, SSA and STM concepts clearer, faster to understand, and easier to apply.

Beyond definitions, this glossary highlights why each term matters operationally and how current and emerging technologies can help satellite operators, space domain awareness professionals, STM stakeholders, industry partners, and decision-makers turn technical knowledge into better visibility, safer decisions, and more efficient mission execution.