How a Satellite Parks Itself 22,000 Miles Above One Spot on Earth

Yesterday’s Turksat-5B launch got me thinking about a question I suspect a lot of people gloss over: what does it actually mean for a satellite to sit “over” a country? It’s not floating there like a balloon. It’s orbiting, just like the ISS or GPS satellites, but at a very specific altitude and speed that makes it look stationary from the ground.

The trick is called geostationary orbit, and it sits at roughly 22,236 miles above the equator. At that exact distance, the time it takes a satellite to complete one full orbit matches the time it takes Earth to complete one full rotation — about 24 hours. Since the satellite is moving in the same direction as Earth’s spin, at the same angular speed, it ends up tracing the same path in the sky over and over. To anyone standing on the ground looking up, it appears frozen in place.

That’s the whole trick, and it’s also why the orbit is so valuable. Compare it to a satellite in low Earth orbit, the kind Starlink uses, which zips around the planet in around 90 minutes and is only visible from any given spot for a few minutes at a time. Useful for broadband constellations where you can hand off between hundreds of satellites, but useless if you want a ground-based dish to just point at one spot in the sky forever and pull in a signal without any tracking hardware.

That’s exactly what broadcast and telecom operators want. A satellite TV dish bolted to the side of a house doesn’t move, and it doesn’t need to — because the satellite it’s pointed at doesn’t move either, relatively speaking. The same logic applies to backhaul links for cell towers in remote areas, weather satellites that stare at the same slice of atmosphere continuously, and government comms links.

For Turksat-5B specifically, being parked in geostationary orbit means it can provide continuous broadcast and telecom coverage over Turkey and the surrounding region without any of the ground infrastructure needing to track a moving target. One satellite, one fixed patch of sky, uninterrupted coverage for the region below it.

There’s a catch, of course. Geostationary orbit only works directly above the equator, and there’s only so much room up there — satellites need enough separation to avoid interfering with each other’s radio signals, so orbital “slots” at that altitude are a genuinely limited and negotiated resource, allocated country by country through international coordination. That’s part of why a launch like this is treated as a big deal domestically — it’s not just hardware going up, it’s a country securing and using its allocated position in a pretty crowded piece of real estate 22,000 miles overhead.

It’s also worth appreciating the latency tradeoff. Because geostationary satellites are so far away, the round-trip signal delay is noticeably higher than low-orbit alternatives — often a few hundred milliseconds. Fine for broadcast TV or steady data links, more annoying for anything latency-sensitive like real-time gaming or video calls. That tradeoff is a big part of why the industry has gotten so interested in low-orbit constellations lately, even though geostationary satellites remain the reliable workhorse for regional broadcast and telecom coverage.