Understand the tracker data
Learn what the launch milestones, ISS map and asteroid measurements mean, including what the data cannot tell you.
Reading a Rocket Launch: Thrust, Staging and Orbit
Understand what the milestones in a launch broadcast tell you, and why booster recovery is separate from mission success.
Read →What the ISS Map Actually Shows
Read position, ground track and orbital motion without mistaking a map marker for a local sighting prediction.
Read →How to Read an Asteroid Close Approach
Interpret distance, size estimates and the potentially hazardous flag in the asteroid tracker.
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