Program: Transport and Tracking Layer

US experimentation constellation from the Space Development Agency (SDA) a unit of the USSF, set into the Proliferated Space Warfighter Architecture (PWSA).

The constellation will provide transport, tracking, battle management, custody, navigation, support and other capabilities.

The tranche 0 will contain 20 satellites: 10 manufactured by Lockheed Martin (for $187.5 million) and 10 by York Space Systems (for $94 million). It will demonstrate basic services of the constellation.

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