In recent months, the skies have become crowded with satellites, and China has taken the lead in this race. The Chinese government has been launching a swarm of low Earth orbit satellites, with 41 more added to the fleet in a recent mission.
This feat set a new national record for China, as it concurrently sent the highest number of satellites into space in a single mission. While China claims that these satellites are intended for commercial remote sensing services, there are growing concerns that their mission extends far beyond that.
The concept of low Earth orbit (LEO) satellites involves electronic equipment circling the Earth at altitudes lower than those of geosynchronous satellites. These satellites operate between 200 and 2,000 kilometers above the Earth's surface. They are cost-effective as they can be launched into space using smaller rockets and require less propulsion. LEO satellites are primarily used for communication, military reconnaissance, and, notably, spying on adversaries.
The United States Space Force has raised concerns about China's LEO satellites being used for espionage and potential military threats. General Chang Saltzman, the chief of the American Space Force, openly expressed his fears regarding China's capabilities. He warned that in the event of a conflict, China's LEO satellites could be weaponized to blind or even physically control other satellites. This tactic could undermine the United States' reliance on space capabilities, including precision navigation, satellite communications, missile warning systems, and intelligence, surveillance, and reconnaissance.
To understand the merit of these assertions, it is important to delve into the nature of LEO satellites. Their lower orbits allow for more detailed imaging and shorter communication delays compared to higher-altitude satellites. This advantage makes them ideal for reconnaissance and surveillance purposes. Furthermore, historical incidents highlight the use of LEO satellites for espionage. In February 2020, a Russian LEO satellite was found to be shadowing an American satellite at a distance of just 300 kilometers. Similar incidents involving U.S. spy satellites tailing Chinese high-orbit satellites have also been reported.
China has taken a significant leap forward in the satellite spy game. Currently, China boasts over 700 operational satellites, with approximately half of them being operated by the People's Liberation Army (PLA) for military purposes. The remaining satellites can also be utilized for military objectives as needed. These numbers indicate China's strong focus on space-based military capabilities and its commitment to expanding its satellite fleet.
Adding to the concerns of the United States, China has ambitious plans to launch a mega constellation of 13,500 LEO satellites by 2027. This constellation aims to support China's 5G mobile internet network. The country claims that these satellites are part of its answer to Elon Musk's Starlink network, which currently consists of around 3,100 satellites. If China's plans come to fruition, it will possess a massive surveillance and communication network in space.
The increasing number of Chinese LEO satellites raises questions about their true purpose. While China maintains that they are primarily for commercial remote sensing, the evidence suggests a more expansive mission. Espionage has long been a part of satellite operations, with major players like Russia and the United States engaging in such activities. However, China's rapid expansion of its satellite fleet, coupled with its military control over a significant portion of these satellites, raises concerns among its adversaries.
As China's presence in space continues to grow, it is essential for nations to carefully monitor and evaluate the potential security risks posed by their satellite operations. Striking a balance between innovation and national security is crucial in this new frontier of satellite technology.