Question 1

How does the live satellite map work?

Accepted Answer

The map uses TLE (Two-Line Element) data from CelesTrak to compute satellite positions with the SGP4 propagation model. Positions are recalculated every 2 seconds in a background Web Worker to keep the globe responsive. You can filter by constellation group and click any satellite dot to see details.

Question 2

How many satellites are shown?

Accepted Answer

The live satellite map can display from a few dozen (Space Stations + Visible) to thousands of objects simultaneously. The Starlink constellation alone has over 5,000 active satellites. Enable groups using the constellation filter on the left.

Question 3

How accurate are the satellite positions?

Accepted Answer

Positions are calculated using SGP4/SDP4 propagation from TLE data synced daily from CelesTrak. Accuracy is typically within a few kilometres for recently updated elements. Position error grows over time and is highest for manoeuvring satellites.

Question 4

Why don't I see satellites from a group I enabled?

Accepted Answer

Satellite data is fetched from our database when you enable a group. If the group shows 0 satellites, it may not have been synced yet. Our database is updated daily from CelesTrak. You can also try enabling a different group like 'Space Stations' which is always populated.

Question 5

What do the different colors mean?

Accepted Answer

Each constellation group has a unique color: yellow for Space Stations, green for bright/visible satellites, blue for Starlink, purple for OneWeb, orange for GPS, and so on. The color legend is shown in the constellation filter panel on the left.

Help & Guide

Live Satellite Map

How to Use

Features

Available Groups

Performance Tips

FAQ

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