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US developing advanced satellite array to track hypersonic weapons

Director of space agency says 28 satellites with detection and tracking systems to be in orbit by 2025, amid increasing threats from Russia and China

Illustrative: A new hypersonic missile launched from Toyang-ri, Ryongrim County, Jagang Province, North Korea, September 28, 2021. (Korean Central News Agency/Korea News Service via AP)
Illustrative: A new hypersonic missile launched from Toyang-ri, Ryongrim County, Jagang Province, North Korea, September 28, 2021. (Korean Central News Agency/Korea News Service via AP)

WASHINGTON (AP) — The US will spend $1.3 billion to develop advanced satellites that will be able to better track hypersonic missile threats, the Pentagon said Monday, announcing two new contracts that will put the detection and tracking systems in orbit by 2025.

Derek Tournear, director of the Space Development Agency, said the contracts will provide 28 satellites, as the US moves to greatly expand and enhance its ability to counter increasing threats from Russia and China.

Both countries have been making strides in their development of hypersonic missiles, which are more difficult to track and shoot down because they maneuver in flight more than conventional weapons do, traveling in predictable paths. Last year, China tested what US officials said was a hypersonic missile, and Russia has used the weapons in strikes during the war in Ukraine.

“Russia and China have been developing and testing hypersonic glide vehicles — these advanced missiles that are extremely maneuverable,” Tournear told Pentagon reporters Monday. “These satellites are specifically designed to go after that next generation version of threats out there, so that we can detect and track these hypersonic maneuvering vehicles and predict their impact point.”

Additional funding for the program was provided by Congress specifically in response to concerns in the Indo-Pacific region, in response to China’s rapidly progressing military development.

Hypersonic weapons are defined as anything traveling beyond Mach 5, or five times faster than the speed of sound. That is about 3,800 mph (6,100 kph). Intercontinental ballistic missiles far exceed that threshold but travel in a predictable path, making it possible to intercept them.

Derek Tournear, director of the Space Development Agency, poses for his official portrait at the Pentagon on May 20, 2019. (Monica King/US Army via AP)

Historically, Tournear said, the US has not flown satellites that were designed to detect and go after such maneuverable hypersonic weapons. Currently, he said, “we have limited capability to do that tracking aspect.” He added, however, that “clearly we don’t have zero capability to do tracking.”

The new satellites, he said, will enable the US to detect the launch, follow the hypersonic missile as it changes course, calculate where it is heading, and provide that data to forces who can launch interceptors.

The contracts were awarded to teams led by L3Harris Technologies, Inc. of Melbourne, Floriday, and Northrop Grumman Strategic Space Systems of Redondo Beach, California. L3Harris will produce 14 satellites at a cost of about $700 million, and Northrop will produce 14 at a cost of about $617 million. The total cost of the program, including the launches and ground control and support, will be about $2.5 billion.

Tournear said the program represents a shift for the US toward a larger, overlapping system of satellites. Rather than relying on larger, more expensive satellites that stay in orbit for 15 or more years, the US will have a greater number of cheaper satellites that would be replaced about every five years.

A new Zircon hypersonic cruise missile is launched by the frigate Admiral Gorshkov of the Russian navy from the White Sea, in the north of Russia, July 19, 2021 (Russian Defense Ministry Press Service via AP)

One set, he said, would be at a lower orbit of about 1,000 kilometers, and a second set would be at a medium orbit of about 10,000-20,000 kilometers, providing a more resilient presence. He said the first 28 satellites would likely be followed by a second group of about 54.

Earlier this year, the United States, United Kingdom, and Australia announced that they would work together to develop hypersonic missiles. The April announcement came amid growing concerns about China’s escalating military assertiveness in the Pacific.

Last October, US Army Gen. Mark Milley, chairman of the Joint Chiefs of Staff, confirmed that China had conducted a test of a hypersonic weapon, calling it a “very significant event” that was “very concerning.”

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