Two-line element set

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Work

Domain

Arts and letters

Knowledge cost

4

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What Wikipedia says

A two-line element set (TLE, or more rarely 2LE) or three-line element set (3LE) is a data format encoding a list of orbital elements of an Earth-orbiting object for a given point in time, the epoch.

Excerpt from the Wikipedia article “Two-line element set”, under the CC BY-SA 4.0 license. Read the article on Wikipedia