This is a JavaScript library for satellite orbit propagation and tracking, allowing developers to calculate the position and velocity of satellites using Two-Line Element (TLE) data or Orbital Mean Elements (OMM) format. It provides functions for SGP4 and SDP4 propagation algorithms, as well as coordinate transforms between Earth-Centered Inertial (ECI), Earth-Centered Fixed (ECF), and geodetic coordinate systems. The library is primarily aimed at web developers building satellite tracking applications, astronomy tools, or space-related visualizations.
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