美军“太空篱笆”空间探测跟踪系统正式运行(英文)

据c4isrnet网2020年3月31日报道,3月27日,美航天部队宣布可追踪空间小于10厘米物体的新型雷达技术形成初始作战能力。系统名为“太空篱笆”采用固态s波段技术探测跟踪在轨目标,如商用和军用卫星、低空、中地球同步轨道空火箭助推器和空间碎片。去年12月完成试验,今年1月五角大楼试验部门预计2月底航天篱笆将上线运行。此前,美国防部依靠“空间监视网”跟踪26000多个空间目标,由于系统跟踪监视目标更小,跟踪数量将大大增加。航天部队为“空间多域感知”提供精密定位数据,保持强大而精确的空间目标目录,确保轨道安全,提供空间预警。空间篱笆项目合同9.14亿美元,2014年授予洛马公司。

New Space Fence radar is officially online

The Space Force announced on March 27 operational capability of its new radar technology that can track objects smaller than 10 centimeters in space.

The system, called Space Fence, uses solid-state S-band technology to detect and track orbiting objects in space. For example, it can track commercial and military satellites, empty rocket boosters, and space debris in low, medium and geosynchronous orbit, according to a Space Force news release.

“Space Fence is revolutionizing the way we view space by providing timely, precise orbital data on objects that threaten both manned and unmanned military and commercial space assets,” said Gen. Jay Raymond, chief of space operations for the U.S. Space Force and commander of U.S. Space Command. “Our space capabilities are critical to our national defense and way of life, which is why Space Fence is so important to enhance our ability to identify, characterize and track threats to those systems.”

The announcement of initial operational capability follows a December test period. A January report from the Pentagon’s chief weapons tester predicted Space Fence would likely be online at the end of February.

Before Space Fence, the Defense Department relied on the Space Surveillance Network to track more than 26,000 objects in space. That number is expected to increase “significantly” over time, the Space Force release said, because of the system’s ability to track smaller objects.

In a March 2019 test, the system successfully tracked orbital debris from an Indian anti-satellite test and determined their next crossing times.

“Space Fence provides precise positional data for Space Domain Awareness to maintain a robust and accurate space object catalog, ensure orbital safety, and provide early warning for conjunction events and indications of potential threats,” the release said.

The Space Fence contract, worth $914 million, was awarded to Lockheed Martin in June 2014.

As C4ISRNET previously reported, Space Fence has its limitations, in part because it is just one radar based in a single location — the Kwajalein Atoll in the Marshall Islands — making it impossible for it to continuously track smaller objects.

Space Fence, operated by the 20th Space Control Squadron in Huntsville, Alabama, will feed data to the Space Surveillance Network so the 18th Space Control Squadron in California can maintain the space-object catalog and screen operational satellites, according to the release.

“Space is now recognized as a congested and contested domain,” said Lt. Col. David Tipton, 20th SPCS commander, “and Space Fence is the next evolution in our efforts to maintain space superiority.”