Rocket Lab reports eight of 18 SDA satellites in production

Eight spacecraft on the floor

Rocket Lab posted on X: "Eight of 18 spacecraft are on the floor right now, in build" [2][3].

The SDA requires the satellites to launch no later than July 2027, in two orbital planes of nine spacecraft each [2][3][6]. The 18 spacecraft are part of the agency's Proliferated Warfighter Space Architecture for resilient military communications [2][3][6]. How far along each spacecraft is remains unknown [6].

Members of the SDA's Tranche 2 leadership team visited Rocket Lab's California headquarters during the update, according to the company and Hoodline [2][3][6]. The satellites are being assembled there on Rocket Lab's Lightning platform [2][3]. The programme completed its critical design review in July last year, which confirmed the design and manufacturing approach met mission requirements and cleared the path to full-rate production [2][3]. Rocket Lab National Security, a wholly owned subsidiary, is responsible for designing, building, testing and operating the spacecraft [2][3][6]. The satellites are being built at Rocket Lab's spacecraft development and manufacturing complex within its Long Beach headquarters [6].

From launch provider to prime contractor

Rocket Lab says it builds key systems internally to manage cost, quality and schedule [2][3].

Rocket Lab said in a statement: "Proliferated architectures demand production at scale. Rocket Lab is all in on SDA's mission, and the action on our floor proves it. We're proud to be delivering this" [2][3]. The in-house work covers solar panels, structures, star trackers, reaction wheels, radios, flight software, avionics and launch dispensers [2][3][6]. Rocket Lab National Security is the subsidiary responsible for the programme [2][3][6]. The company has also said that internal production helps it control cost, quality and schedule as it scales output for defense customers [2][3].

What the $515 million buys

The award was announced in 2024 [2][3][6]. It is a firm-fixed-price agreement valued at $515 million [2][3][6].

That figure breaks down into a $489 million base value plus $26 million in incentives and options, according to the company's program overview [2][3][6]. The contract covers design, development, production, testing and operations of 18 satellites [6]. Rocket Lab is the prime contractor on that agreement [6]. The SDA timetable requires launch no later than July 2027, split across two orbital planes of nine spacecraft each [2][3][6]. The satellites are intended to populate the SDA's Proliferated Warfighter Space Architecture, a network for resilient military communications [2][3][6]. The SDA is procuring satellites in two-year tranches to build out a proliferated constellation in low Earth orbit, according to Rocket Lab's mission page [6]. Once flying, the Tranche 2 satellites are meant to provide assured, resilient, low-latency military data and connectivity worldwide [6].

A second award, and a disagreement over its size

Rocket Lab won a separate Tranche 3 Tracking Layer contract in December 2025 [1][2][3]. The award was for 18 satellites and $816 million [1][2][3].

Those spacecraft will carry missile warning and tracking sensors, including detection of hypersonic threats [1][2]. Combined, the company puts the two SDA awards above $1.3 billion in potential value [1][2][3][6]. Hoodline reported that Satellite Today puts the Tranche 3 figure at $805 million [6]. The discrepancy has not been reconciled [6]. Satellite Today also reports Rocket Lab, Lockheed Martin, Northrop Grumman and L3Harris are each building 18 of the 72 Tranche 3 satellites [6]. Rocket Lab shares jumped 8.34% on Tuesday to close at $58.31, then edged up 0.41% after hours [6]. Rocket Lab has expanded into defense and has said it would bid for multibillion-dollar Department of Defense initiatives like Golden Dome [1].

The share move followed three straight sessions of gains [3][6].

What happens next

Rocket Lab is due to report third-quarter 2026 results on 9 November [6].

Last quarter the company posted revenue of $234.07 million, 1.3% above the analyst estimate of $231.07 million [6]. The SDA timetable still requires the Tranche 2 satellites to launch no later than July 2027 [2][3][6]. That deadline is unchanged [2][3][6]. It is not public how far along each of the eight spacecraft is [6].