Swarmwatch Signals: Issue 01

This newsletter is designed to help make sense of an increasingly crowded and consequential orbital environment. Each issue will select a small number of developments that deserve attention, review the underlying reporting, and explain what they might mean for space infrastructure, security, and strategic competition.

In this edition, Starlink passes another substantial milestone, China’s GuoWang constellation returns to a quicker launch rhythm, and a deliberately vulnerable hardware platform brings satellite-security training onto the workbench.

The aim is not to capture everything happening in orbit. It is to identify the signals worth following and place them in context.

For a closer look at the constellations themselves, including their size, deployment history and orbital activity, visit Swarmwatch.

Starlink passes 11,000 satellites after another launch from California

SpaceX launched 24 Starlink satellites from Vandenberg Space Force Base on 18 August. The Starlink 17-50 mission lifted off at 9.01 pm local time, taking the number of Starlink spacecraft in low Earth orbit beyond 11,000, according to Spaceflight Now.

The milestone is less important as a round number than as evidence of sustained deployment at exceptional scale. Batches of two dozen satellites have become routine, reinforcing both the network's resilience and the world’s dependence on infrastructure controlled by a single operator.

Source: Spaceflight Now

GuoWang returns to a quicker rhythm with two August deployments

A Long March 8A launched nine GuoWang satellites from the Wenchang Commercial Space Launch Site on 4 August. A second batch of nine followed aboard a Long March 12 on 16 August, taking China in Space’s running total for the state-backed constellation to 195 satellites launched.

The two missions add another turn to an uneven contest between China’s principal broadband constellations. Qianfan moved first and built an early lead, only for its deployment campaign to stall as GuoWang accelerated through 2025. Qianfan has since regained momentum and remains ahead, with 238 satellites launched, but GuoWang’s two deployments in 12 days show that China continues to build both networks rather than allowing one to become the uncontested national alternative to Starlink.

Source: China in Space

Electronic Cats is offering a DEF CON 34 edition of FlatSat, a deliberately vulnerable hardware platform for satellite-security training. The board supports exercises covering binary exploitation, reverse engineering, secure communications and space protocols, alongside experiments with radio links, telemetry and payload logic. Its firmware and schematics are openly documented.

FlatSat does not reproduce the complexity or consequences of attacking an operational spacecraft. Its value is more practical: it gives researchers and students hardware on which to develop relevant skills without touching production systems or restricted communications bands. As space cybersecurity matures, accessible test platforms can help narrow the gap between discussing satellite vulnerabilities and learning how to identify them.

Source: Electronic Cats

For most of the space age, operating a substantial satellite fleet was the preserve of governments. Starlink has overturned that model.

Following its latest launch, SpaceX has more than 11,000 satellites in low Earth orbit. Depending on how active spacecraft are counted, one commercial network now represents roughly two-thirds of the world’s operational satellite population. Commercial operators were already responsible for nearly 79% of active satellites in 2023, according to the OECD.

This does not mean governments have lost their importance in space. They still operate the most sensitive military, intelligence and navigation systems, while SpaceX itself works closely with the US government. The company launches national-security payloads, provides government services and has developed the Starshield system for state customers.

The change is in who owns the infrastructure. Governments increasingly depend on orbital networks they can purchase and regulate but do not directly control. Starlink offers extraordinary resilience through scale, rapid replacement, and technical renewal, yet it also concentrates capability within a single operator, launch provider, and technical ecosystem.

China’s development of GuoWang and Qianfan reflects the strategic importance of that dependence. These projects are not simply broadband competitors: they are efforts to ensure that critical orbital infrastructure is not dominated by an overseas commercial company.

Starlink’s latest milestone therefore represents more than growth. It shows how orbital power is shifting from systems owned primarily by states towards commercial networks on which states themselves may depend.

Sources: Spaceflight Now, OECD

Another GuoWang deployment within the next few weeks would make the August activity more significant. For now, the signal is that China is keeping both of its principal broadband constellation programmes moving, even as their respective launch rhythms continue to change.

Jack C.’s continuously updated survey tracks Qianfan, GuoWang, Honghu-3, Geely’s Future Mobility Constellation, Tianqi and the Three-Body Computing Constellation. Its value lies in bringing fragmented deployment histories and programme ambitions into one place, although some satellite counts and future plans necessarily rely on informed reporting rather than comprehensive official disclosure. Highly recommended read for anyone interested in the Chinese constellations.

The Sky Is Full

I’ve been working on an eight-part documentary podcast about how satellite constellations are reshaping communications, geopolitics and conflict.

The Sky Is Full travels from Ukraine’s battlefields and Chinese launch sites to Cold War bunkers and Silicon Valley boardrooms, tracing how low Earth orbit became some of the world’s most consequential infrastructure.

The trailer is out now.

Listen to The Sky Is Full + The Sky Is Full site

Swarm: The Rise of Megaconstellations and the Battle for Low Earth Orbit

My forthcoming book examines the larger story behind many of the developments covered by Swarmwatch Signals: how commercial satellite networks became strategic infrastructure, why governments increasingly depend on them, and what their expansion means for competition and conflict in orbit.

Swarm will be published by Potomac Books in January 2027.

Read more about Swarm

Did You Know? The Starlink 17-50 launch was SpaceX’s 100th mission of 2026, and its 74th of the year dedicated to Starlink. The company has now passed 100 annual launches for three consecutive years, showing how closely the constellation’s growth is tied to an unprecedented launch cadence.

Till next time,

Jay

Swarmwatch Signals