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LESSON 05 OF 6

Time controls and prediction

Beginner ~8 min Slide deck Free

Orbital Radar can propagate any object's position forward or backward in time using the same SGP4 physics engine. This lets you see where a satellite was yesterday, where it will be tonight, or how a conjunction unfolds hour by hour.

Orbital Radar can propagate any object's position forward or backward in time using the same SGP4 physics engine. This lets you see where a satellite was yesterday, where it will be tonight, or how a conjunction unfolds hour by hour.

What this lesson covers

The Time Slider

The time control bar lets you move freely through time while the globe updates every object's position.

Why Predictions Degrade Over Time

The further you propagate from the TLE epoch, the less accurate the predicted position becomes.

Prediction Accuracy by Timeframe

These are rough figures for a typical LEO object. Debris and dead satellites have more predictable drift than active maneuvering satellites.

Practical Uses for Time Controls

Time controls unlock several powerful workflows beyond just watching.

Key facts

💡Watching at 100× speed makes orbital patterns visible in seconds — try it with ISS.
Time controls turn the globe from a snapshot into a prediction engine. Fresh TLEs = trustworthy predictions.

Next: the most practical use of time prediction — pass predictions for your location.

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
← Filters: finding what you wantAll 6 LessonsPass predictions: how to use them →
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