What is a Starlink launch?

SpaceX launches batches of 20–23 Starlink satellites at a time aboard a Falcon 9 rocket. Each batch is called a "group" and joins a specific orbital shell at a set altitude and inclination. After launch, satellites gradually raise their orbits over several weeks before becoming operational.

Fresh batches fly in tight formation — this is what creates the famous "Starlink train" visible from the ground in the days after launch. The satellites spread out over weeks as they maneuver to their final positions.

SpaceX typically launches every 1–3 weeks. The constellation currently has over 7,000 satellites with plans for up to 42,000.