L3Harris Selects Mercury To Provide Solid-State Data Recorders for SDA's Tranche 3 Tracking Layer Satellites

ANDOVER, Mass., April 02, 2026 -- Mercury Systems, Inc. (NASDAQ: MRCY, ), a global technology company that delivers mission-critical processing to the edge, today announced it was awarded a contract from L3Harris Technologies (NYSE: LHX) to provide solid-state data recorders (SSDRs) for the U.S. Space Development Agency (SDA) Tranche 3 Tracking Layer satellite constellation.

L3Harris received a contract award in December to build 18 infrared satellites for the Tranche 3 Tracking Layer. These tracking layer satellites will enhance the SDA Proliferated Warfighter Space Architecture (PWSA) constellation that is designed to protect the United States from advanced missile threats, such as hypersonic missiles.

Mercury’s radiation-tolerant SSDRs are leveraged on all four tranches that L3Harris is developing for the PWSA Tracking Layer. Mercury recently completed delivery of SSDRs for all 18 of L3Harris’s Tranche 2 Tracking Layer satellites, after previously delivering data recorders for the Tranche 0 and Tranche 1 constellations.

With Tranche 3, L3Harris has moved to Mercury’s highest-capacity SSDR to date that delivers high performance and long-term data integrity in a 3U VPX form factor for space missions.

“Mercury is proud to support L3Harris to deliver a next-generation, layered defense architecture that can track missile threats in real time to protect our homeland,” said Ken Hermanny, Mercury’s Senior Vice President of Processing Technologies. “As the United States accelerates hardware production across all battlefield domains, Mercury is taking proactive measures to increase manufacturing capacity and efficiency in our operations.”

Mercury Systems – Innovation that matters

 
Mercury Systems is a global technology company that delivers mission-critical processing to the edge, making advanced technologies profoundly more accessible for today’s most challenging aerospace and defense missions. The Mercury Processing Platform allows customers to tap into innovative capabilities from silicon to system scale, turning data into decisions on timelines that matter. Mercury’s products and solutions are deployed in more than 300 programs and across 35 countries, enabling a broad range of applications in mission computing, sensor processing, command and control, and communications. Mercury is headquartered in Andover, Massachusetts, and has more than 20 locations worldwide. To learn more, visit mrcy.com. (Nasdaq: MRCY)