Navigating the Complexities of Space Debris Management: An Increase in Miniature Satellites and Enhanced Risks
The increasing number of satellites in orbit and growing threats have put a strain on traditional space traffic management systems, primarily managed by the U.S. Space Force. A promising solution to this challenge is the transition of the Space Traffic Management (STM) mission from the Space Force to the Office of Space Commerce (OSC) under the Department of Commerce. However, this transition faces significant funding hurdles, raising concerns among military and commercial stakeholders.
The Space Force, through its Space Surveillance Network, currently manages space traffic, including tracking approximately 60,000 objects in orbit. As the number of satellites, particularly smaller ones like cubesats, increases, the system can become crowded and difficult to manage. This is known as cubesat confusion, where multiple small satellites enter orbit from the same launch vehicle, and up to 20 percent of the satellites on such a launch can remain uncatalogued for up to 250 days.
To address this issue, technological innovations like visual transponders ("blinkers") on small satellites are being developed. The Aerospace Corp. has developed a blinker, launched in 2022 on an experimental cubesat dubbed Slingshot, to improve the tracking of these satellites.
The civilian STM mission, rooted in Space Policy Directive 3, aims to incorporate data from military, commercial, and international sources to improve orbital determination and relieve the Space Force from civilian STM duties, allowing it to focus on core military space operations. The Traffic Coordination System for Space (TraCSS), developed by the OSC, is close to full operational capability by early 2026 and underwent beta testing with satellite operators. However, recent budget proposals suggest near-elimination of its funding, raising the risk that space traffic coordination would revert entirely to the Space Force amid growing operational strain.
Several U.S. space industry groups, including major companies like SpaceX and Blue Origin, oppose the OSC budget cuts. They warn that without a funded civilian STM system, the risks of collisions and debris will increase, potentially degrading space safety and driving commercial activity overseas. The industry emphasizes that civilian control of space traffic coordination preserves military resources for defense and aligns with longstanding U.S. space policy favoring civil oversight rather than defense-dominated space safety.
In a warfighting domain, there's a different assumption, with some actors trying to avoid detection. Col. Matthew Wroten stated that in such situations, the Space Force needs to be able to respond quickly to incidents, requiring different detection technologies or phenomenologies. Radar and passive radio frequency detection each have advantages and disadvantages, and the Space Force needs to fuse data from different phenomenologies to make the best use of their strengths.
The Space Surveillance Network was built for collision avoidance, with the assumption of predictability. However, with the increasing number of unpredictable smaller satellites, the need for a more comprehensive data-sharing platform integrating commercial, international, and operator sources becomes more critical.
In summary, the transition of the STM mission to the civilian OSC through TraCSS offers a promising way to share and improve tracking capabilities. However, the proposed funding cuts threaten the deployment and continuity of this new system, causing concern among military and commercial stakeholders.
[1] Mark Skinner, senior project leader for space traffic management at the Aerospace Corp., outlined a series of growing challenges faced by the traditional STM system, including the COLA Gap and cubesat confusion. [2] The Space Surveillance Network shares data on these objects with allied governments and some commercial space operators. [3] The move to transfer the collision avoidance mission to a civilian agency was initiated seven years ago to free up the military for military tasks. [4] In 2021, China tested a fractional orbital bombardment system, which could have potentially targeted the homeland, serving as a wakeup call for the Space Force.
[1] Mark Skinner, senior project leader for space traffic management at the Aerospace Corp., highlighted the COLA Gap and cubesat confusion as growing challenges for the traditional STM system.[2] The Space Surveillance Network provides data on tracked objects to allied governments and some commercial space operators.[3] The shift to entrust the collision avoidance mission to a civilian agency was initiated seven years ago, enabling the military to concentrate on core military operations.[4] In 2021, China tested a fractional orbital bombardment system, a potential threat to the homeland, underscoring the importance of Space Force's defense and space warfare capabilities.[5] The environmental-science and aerospace communities play a role in the space and astronomy field, but their data and contributions to the STM mission could prove valuable in ensuring the long-term sustainability of space resources, reducing potential financial risks and maintaining a favorable environment for space operations.
