Space · Orbital Infrastructure

Active Satellites in Orbit

From a handful of Cold War probes to more than 17,000 active satellites, most of them launched in the last five years.

• 5 (1960) → 17,101 active (2026)
• Doubling every ~2.4 years since 2020
• Starlink alone is 11,137 of them
• Debris pushes tracked objects past 34,000

The number of active satellites in orbit grew slowly for over half a century, from five in 1960 to about 1,450 in 2015, then went vertical. Every point is McDowell’s active catalogue counted one way: the payloads GCAT lists as still transmitting, read at 31 December of each year, with the last point the live list at its own date rather than a year-end. SpaceX began launching Starlink in 2019 and now operates 11,137 of the 17,101 active satellites, 65% of everything up there. OneWeb, Amazon Kuiper and Chinese constellations are following. Low Earth orbit is turning from a sparse strategic frontier into dense civilian infrastructure, raising new debris-management and astronomy concerns.

GCAT’s list includes uncertain and beacon-only ‘zombie’ cases and counts each of them as one satellite; defunct payloads, spent stages and debris push the total tracked-object count above 34,000. McDowell also publishes a daily summary statistic for active payloads, which weights doubtful cases below one and whose last weeks run short of his own catalogue; this curve reads the catalogue instead, so that the history and the live tip are the same measurement.

Source: Jonathan McDowell’s General Catalog (GCAT)

Download the data: active_satellites.csv · active_satellites.json

All curves · The chart is drawn in your browser and needs JavaScript. Every number it plots is in the table above.