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Changelog

1.0.0

Breaking changes

  • getTimeOfWeek() now returns milliseconds (was seconds)
  • getTimeOfDay() now returns milliseconds (was seconds)
  • getDateFromGpsData(weekNumber, timeOfWeek) — timeOfWeek is now in milliseconds
  • getDateFromTimeOfDay(timeOfDay, date) — timeOfDay is now in milliseconds
  • getDateFromGloN(n4, na, tod) — tod is now in milliseconds

All time-returning functions now consistently use milliseconds, matching Date.getTime(), getGpsTime(), getGalTime(), etc.

New modules

  • gnss-js/coordinates — ECEF/geodetic conversions, Vincenty/rhumb distance, UTM, Maidenhead, geohash
  • gnss-js/constants — GNSS frequencies, system metadata, GLONASS FDMA, BeiDou constellation, observation indexing
  • gnss-js/rinex — Streaming RINEX 2/3/4 observation parser, navigation file parser, Hatanaka decompression, validation
  • gnss-js/rtcm3 — RTCM3 frame decoder, MSM4-7 observation extraction, ephemeris decoding, station metadata
  • gnss-js/orbit — Keplerian and GLONASS orbit computation, azimuth/elevation, DOP calculation
  • gnss-js/analysis — Code multipath (MP1/MP2), cycle-slip detection (MW/GF/SF), observation completeness
  • gnss-js/ntrip — NTRIP 1.0/2.0 sourcetable parsing, stream connection (configurable proxy URL)

Improvements

  • Subpath exports — Import only what you need: import { vincenty } from 'gnss-js/coordinates'
  • JSDoc on all functions — Every exported function has @param and @returns with explicit units
  • Zero dependencies — Pure TypeScript, works in Node.js, browsers, Deno, Bun, and Workers
  • Migrated test runner from Jest to Vitest

0.1.2

  • Fix BDS time epoch definition
  • Add UTC and GPS scales for Julian date functions
  • Refactor leap second table

0.1.1

  • Add TAI and TT scales for Julian dates
  • ESM migration

0.1.0

  • Initial release: GNSS time scale conversions (GPS, Galileo, BeiDou, GLONASS, NTP, TAI, TT, UTC)
  • Julian/MJD date conversions
  • RINEX time format parsing
  • Leap second handling