Lockheed Martin unveils new line of tactical ISR satellites 14 April 2021 (Last Updated April 14th, 2021 12:01) Lockheed Martin has unveiled a new line of LM 400 mid-size bus-based tactical intelligence, surveillance, and reconnaissance (ISR) satellites. Share Article Illustration of space-enabled warfighting capabilities. Credit: Lockheed Martin Corporation. Lockheed Martin has unveiled a new line of LM 400 mid-size bus-based tactical intelligence, surveillance, and reconnaissance (ISR) satellites. These ‘integrated and affordable’ satellites are designed to meet the growing demand for space-enabled warfighting capabilities in support of Joint All-Domain Command and Control (JADC2). The satellites will enable US troops to detect moving targets at long ranges and can quickly perform functions in disputed and hostile environments.