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Home Academy Satellite Missions 101 Comms vs EO vs science vs nav
LESSON 01 OF 6

Comms vs EO vs science vs nav

Beginner ~9 min Slide deck Free

Most satellites belong to one of four broad mission families: communications, Earth observation, navigation, or science. Understanding which family a satellite belongs to explains most of its orbital choices.

Most satellites belong to one of four broad mission families: communications, Earth observation, navigation, or science. Understanding which family a satellite belongs to explains most of its orbital choices.

What this lesson covers

Reading Mission Type from Orbit

Without any mission data, the orbital regime alone lets you make a confident first guess about what a satellite does.

Key facts

💡The orbital regime is a public, unclassified data point. Even for classified satellites, the orbit reveals the mission class with high confidence.
Mission decides orbit. Orbit reveals mission clues.

Orbital mechanics isn't chosen arbitrarily. Every altitude, inclination, and eccentricity is an engineering answer to a mission question. Reading the orbit means reading the intent.

All lessons in Satellite Missions 101
01Comms vs EO vs science vs nav~9 min02Why some look stationary~9 min03Optical vs radar imaging~10 min04Weather sats vs EO sats~9 min05Signals intelligence~9 min06Lifetime + why things fail~9 min
All 6 LessonsWhy some look stationary →
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