TraCSS Implements Program Increment 1.2: On-Demand Ephemerides Screening and Bulk Submissions Now Live

The Office of Space Commerce (OSC) announces that, as of May 20, 2025, the Traffic Coordination System for Space (TraCSS) has implemented Program Increment 1.2 for its beta users. This release introduces on-demand screening of operational ephemerides and enables bulk submission capabilities—ideal for operators of large satellite constellations.

As an Agile software development program, TraCSS continues to deliver iterative upgrades that add new capabilities in preparation for the migration of users from the Department of Defense.

The initial version, released in September 2024, distributed TraCSS-generated Conjunction Data Messages (CDMs) to beta users via the Space-Track.org interface. Subsequent updates enabled direct CDM distribution through TraCSS APIs.

TraCSS team is preparing to expand user participation in advance of a full production release scheduled for early 2026.

With this latest update, beta-user satellite operators can now submit ephemerides to TraCSS at any time and receive conjunction analysis results within two to five minutes. This “on-demand screening” marks a significant advancement. Operators of large constellations can also submit thousands of ephemerides at once via “bulk submissions,” greatly enhancing space situational awareness and safety.

“The implementation of Program Increment 1.2 is a major milestone for the TraCSS program and the evolving state-of-the-art in U.S. space situational awareness capabilities,” said Janice Starzyk, Acting Director of the Office of Space Commerce. “With on-demand conjunction analysis for satellite operators, we are advancing space safety in line with our responsibilities under Space Policy Directive-3.”

Learn more about the Traffic Coordination System for Space.