SpaceX has developed a novel Space Situational Awareness (SSA) system, called Stargaze, that significantly enhances the safety and sustainability of satellite operations in low Earth orbit (LEO), and its screening data will be made available to the broader satellite operator community free of charge in the coming weeks.
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Stargaze delivers a several-order-of-magnitude increase in detection capability compared to conventional ground-based systems. Stargaze uses data collected from nearly 30,000 star trackers, each of which makes continuous observations of nearby objects, resulting in approximately 30 million transits detected daily across the fleet.
The system autonomously detects observations of orbiting objects and are then aggregated to generate accurate orbit estimates and predictions of position and velocity for all detected objects in near real-time. These predictions integrate into a space-traffic management platform that identifies potential close approaches between objects in space and generates Conjunction Data Messages (CDMs). To fully realize the utility of such frequent observations, SpaceX developed this system to provide conjunction screening results within minutes, compared to the current industry standard of several hours.
From the article:
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