SDA director, Derek Tournear, said SpaceX “came up with a very reliable proposal” taking advantage of the Starlink assembly line.

Washington – SpaceX has been awarded a $ 149 million contract and L3Harris a $ 193.5 million each to build four satellites to detect and track ballistic and hypersonic missiles.

The contracts announced on October 5 are for the first eight satellites from a much larger constellation of the space development agency than sensor satellites known as Tracking Layer Tranche 0. This is SpaceX’s first military contract to produce a satellite.

Derek Turner, Director of the Space Development Agency, said both companies must deliver four satellites by September 2022. Space News.

Each satellite will have a “wide field of view” continuous infrared (OPIR) sensor capable of detecting and tracking advanced missile threats from low Earth orbit. Each satellite will also have an optical cross-link in order to be able to pass the data to the satellites.

Turner said the winners were chosen based on technical merit and ability to quickly connect satellites.

SpaceX proposed a new satellite design based on the Starlink bus that SpaceX designed for online installation. Tournear said SpaceX is getting the OPIR sensor from another supplier but cannot reveal the name. SpaceX has yet to disclose the subcontractors for this program.

L3Harris demonstrated a complete satellite with internally produced bus and payload.

Optical crosslinks in the tracking layer must be compatible with the optical links used on transport layer satellites Lockheed Martin and York Space Systems You build the Space Development Agency.

The transport layer is the backbone that transmits the data collected by the sensors to anywhere in the world where the US military needs it.

Tournear said SpaceX “came up with a very reliable proposal” boosting the Starlink assembly line.

“The selection is based on technical merit, but the timetable is of the highest priority,” he said. The SDA model is based on leveraging commercial technology. We have taken advantage of Tier 2 commercial suppliers. This is an example of how to leverage Tier 1 commercial suppliers.

“We want to show that we can take commodity commercial ingredients and carry out the mission of the Department of Defense,” Turnier said.

All eight satellites will be launched in 2022 to demonstrate the tracking layer. The next step will be the addition of 28 satellites with more wide field of view and one or two “medium field of vision” satellites that the missile defense agency will develop. Medium field of view sensors provide more specific target location data for automatic weapon guidance.

A constellation of 28 wide field of view and two OPIR satellites with a medium field of view will be deployed in two aircraft of 15 satellites each.

Turner said SDA is now reviewing bids for the “Task Systems Engineering and Integration” contract. The winner will be responsible for connecting the transport layer and the tracking layer to the ground systems.