December 19, 2025 - (Photo Credit: Northrop Grumman) The Space Development Agency (SDA) has given four companies contracts worth a combined $3.5 billion for a future tranche of its space-based missile warning and tracking architecture.

December 19, 2025 - DENVER, Dec. 19, 2025 /PRNewswire/ -- The Space Development Agency (SDA) has awarded Lockheed Martin (NYSE: LMT) a contract for 18 space vehicles for its Tranche 3 Tracking Layer (TRKT3) constellation, with a potential value of more than $1 billion.

December 19, 2025 - Tracking Layer Tranche 3 expands ... Space Development Agency (SDA) today announced the award of four agreements, with a total value of approximately $3.5 billion, to build 72 Tracking Layer satellites to proliferate missile ...

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December 19, 2025 - The contract, valued up to $843 million, includes ground software, operations and sustainment functions. These tracking layer satellites will enhance the SDA Proliferated Warfighter Space Architecture (PWSA) constellation, which is designed ...

December 19, 2025 - (Graphic: L3Harris) WASHINGTON — The Space Development Agency (SDA) today announced four new contracts, worth $3.5 billion total, for 72 new satellites for missile warning and tracking.

December 19, 2025 - 19, 2025 /PRNewswire/ -- The Space Development Agency (SDA) has awarded Lockheed Martin (NYSE: LMT) a contract for 18 space vehicles for its Tranche 3 Tracking Layer (TRKT3) constellation, with a potential value of more than $1 billion.

December 22, 2025 - Lockheed Martin won contracts for tranche 2 of Tracking and all three tranches of Transport awarded so far. Rocket Lab is new to the Tracking layer, but it was part of tranche 2 of Transport.

2 weeks ago - Each satellite would have 4 optical links. SDA may have awarded 3 contracts totalling $1.8 billion to 3 firms, each for 42 satellites to be launched by September 2024. However, there was a funding constraint in the FY2022 budget.

December 19, 2025 - In January 2024, SDA awarded three contracts for 54 Tranche 2 satellites to L3Harris, Lockheed Martin and Sierra Space. Tranche 1 contracts for 28 satellites were awarded in July 2022 to Northrop Grumman and L3Harris.

April 7, 2025 - The T3TRK Layer expands on Tranche 2 (T2) and Tranche 1 (T1) Tracking Layer capabilities with targeted technology enhancements, expanded coverage, increased integration, established calibration processes, and greater production efficiencies.

July 28, 2025 - SDA announced Tuesday that it had awarded SpaceX $149 million and L3Harris $194 million to each build four satellites for the agency’s Tracking Layer Tranche 0 designed to detect ballistic, cruise and hypersonic missiles using a wide field ...

December 22, 2025 - SDA awards $3.5B to Lockheed, L3Harris, Northrop and Rocket Lab for Tranche 3 PWSA Tracking Layer missile-warning satellites.

December 19, 2025 - Lockheed Martin, Rocket Lab USA, ... Development Agency’s (SDA) Tracking Layer under more than $3.5 billion in Other Transaction Authority (OTA) rapid prototyping contracts, SDA said on Friday....

December 22, 2025 - Find out more at afa.org · The Space Force’s Space Development Agency announced $3.5 billion in contract awards to four companies to build a total of 72 missile warning and tracking satellites—the largest deal to date for its low-Earth ...

August 29, 2024 - SDA's Tracking Layer will provide global indications, warning, tracking, and targeting of advanced missile threats, including hypersonic missile systems.

September 18, 2025 - An SDA official explained that ... medium-field-of-view infrared cameras. ... L3Harris has won two Space Development Agency contracts for development of missile warning/tracking satellites....

April 3, 2024 - Responses to this RFI will inform SDA's Tranche 2 Tracking Layer planning in fiscal year 2023 for subsequent contract award in fiscal year 2024.