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CHANGELOG.md

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  • 4.5.0: Node.js: add conditional exports to package.json. This should help clear up issues around resolving ES Modules.
  • 4.2.0: Added TypeScript support.
  • 4.1.0: Fixed internal bug with caching TLE parsing keys. Added clearTLEParseCache() to parsing.js. Mostly for tests, but is also be useful for long-running apps that need to free up some memory.
  • 4.0.0
    • Note: this version requires Node 10 and up.
    • Major dependency updates (including upgrading to satellite.js v4).
    • Better support for 3-line TLE variants with a '0 ' prefix on the first line, preceding the satellite name (impacts the return value when using getSatelliteName()).
    • Fix means of returning a Promise in getOrbitTrack() and getGroundTracks()
    • Various linting.
  • 3.1.0 - add support for Node 12 with a special CommonJS build target (see below for usage)
  • 3.0.0 - breaking changes! Code refactoring and rewrite
    • Code rewritten to properly take advantage of tree shaking (resulting in smaller code on your end!).
    • getGroundTracks() is now async by default and returns a Promise. It also now accepts an object of options, and returns [lng, lat] pairs by default instead of [lat, lng] pairs. To use the synchronous version of the code, use getGroundTracksSync() instead.
    • In general, functions now default to [lng, lat] output
    • Renamed getGroundTrack() to getGroundTracks()
    • Renamed getSatelliteNumber() to getCatalogNumber()
    • Renamed getOrbitTimeMS() to getAverageOrbitTimeMS()
    • Renamed getTLEEpochTimestamp() to getEpochTimestamp()
    • Renamed getLatLon() to getLatLngObj()
    • Changed getLatLonAtEpoch() to getLngLatAtEpoch()
    • Added getCOSPAR() getter, which is useful for identifying satellites from 2-line elements lacking a name.
    • Added clearCache() to clear out memoized data from SGP4 helpers. This should help clear out memory for long-running apps.
    • Switched from Mocha to Jest for testing, added a few new tests.
    • Added Rollup for exporting ESM and UMD outputs.
    • Added better code documentation.
  • 2.1.3 - initial add of async ground track functions, getVisibleSatellites()