Question 1

What is a satellite ground track?

Accepted Answer

A ground track is the path on Earth's surface directly below a satellite as it orbits. It shows where the satellite passes overhead over time. The ground track shape depends on the orbit's inclination, altitude, and eccentricity. Satellites in low Earth orbit (like Starlink) complete multiple ground tracks per day.

Question 2

How do I find a Starlink satellite?

Accepted Answer

Search for 'Starlink' in the satellite search box to see all Starlink satellites in our database. You can also search by specific Starlink satellite numbers (like 'STARLINK-1234') or browse by launch date. Select any satellite to view its real-time ground track on the 3D globe.

Question 3

How accurate is the satellite position?

Accepted Answer

Positions are calculated using SGP4 propagation from Two-Line Element (TLE) data maintained by CelesTrak and Space-Track. For recently updated TLEs, accuracy is typically within a few kilometers. Position accuracy degrades over time as orbital perturbations accumulate.

Question 4

Can I search for any satellite?

Accepted Answer

Yes, the database includes thousands of tracked objects from Space-Track and CelesTrak, including active satellites, rocket bodies, and debris. Search by satellite name, NORAD catalog number, or international designator. Popular satellites like ISS, Hubble, and all Starlink satellites are included.

Question 5

What does the 3D visualization show?

Accepted Answer

The 3D globe shows the satellite's current position (updated in real-time), its ground track path over the past and next orbital period, and Earth's day/night terminator. You can rotate and zoom the globe to view the orbit from any angle. The track shows where the satellite will pass overhead.

Help & Guide

Satellite Ground Track Viewer

How to Use

Features

Popular Satellites

Ground Track Factors

FAQ

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