satellite.js

SGP4/SDP4 calculation library

v6.0.1 URL: https://unpkg.com/satellite.js@6.0.1/lib/index.js

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sgp4 sdp4 satellite TLE two-line elements OMM sgp4prop

tle.js

Satellite TLE tools in JavaScript.

v5.0.1 URL: https://unpkg.com/tle.js@5.0.1/src/index.js

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satellite satellites tle two-line element set space tle geodesy geodetics satellite.js

spacedatastandards.org

space data standards framework based on ccsds standards and google flatbuffers

v1.60.0 URL: https://unpkg.com/spacedatastandards.org@1.60.0/index.js

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astronomy-bundle

Bundle for astronomical calculations such as position of moon, sun and planets, sunrise, sunset or solar eclipses. Most of the calculations are based on Jean Meeus 'Astronomical Algorithms' book and the VSOP87 theory.

v7.7.7 URL: https://unpkg.com/astronomy-bundle@7.7.7/index.js

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astronomy calculations sun sunrise sunset solar eclipse moon moonrise moonset libration planets mercury venus mars jupiter saturn uranus neptune VSOP87 satellite two line elements tle

ootk-core

Orbital Object Toolkit. A modern typed replacement for satellite.js including SGP4 propagation, TLE parsing, Sun and Moon calculations, and more.

v1.3.1 URL: https://unpkg.com/ootk-core@1.3.1/dist/main.js

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satellite sgp4 sun moon orbit space toolkit