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Home Academy Reading the Globe Pass predictions: how to use them
LESSON 06 OF 6

Pass predictions: how to use them

Beginner ~8 min Slide deck Free

A pass prediction calculates when a satellite will be visible from your specific location — its rise time, peak elevation, direction, and brightness. It's the bridge between orbital data and real-world observation.

A pass prediction calculates when a satellite will be visible from your specific location — its rise time, peak elevation, direction, and brightness. It's the bridge between orbital data and real-world observation.

What this lesson covers

How Pass Predictions Work

A pass occurs when three conditions align — the satellite, your position, and the sunlight geometry.

Reading a Pass Prediction

Each prediction gives you three key moments: when the satellite rises above your horizon, when it reaches its highest point (best visibility), and when it sets or enters Earth's shadow.

Brightness and Visibility

Not all passes are equal — some are bright enough to spot easily, others need binoculars.

Tips for Successful Observation

A few simple preparations dramatically improve your chances of spotting a satellite.

Key facts

💡A satellite can pass overhead in daylight — you just can't see it without a telescope.
Pass predictions connect orbital mechanics to your backyard. Set location, check times, look up.

You've completed the Reading the Globe track — you can now navigate the globe, read data panels, filter objects, control time, and plan observations. Welcome to Orbital Radar.

All lessons in Reading the Globe
01What you're looking at (the Orbital Radar globe)~7 min02Object types and color coding~7 min03Clicking an object: the data panel explained~8 min04Filters: finding what you want~7 min05Time controls and prediction~8 min06Pass predictions: how to use them~8 min
← Time controls and predictionAll 6 Lessons
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