BeiDou Navigation Data (RINEX v4)

R2026b

For RINEX version 4 files, BeiDou navigation data is organized by navigation message type. Each navigation message type may provide ephemeris data, system time offset parameters, Earth orientation parameters, and ionospheric model data, depending on the message.

BeiDou navigation messages are returned within the output structure data.BeiDou and are grouped by navigation message type.

These BeiDou navigation message types are supported:

  • data.BeiDou.D1 — D1 navigation messages. This message type is also supported in RINEX version 3 files.

  • data.BeiDou.D2 — D2 navigation messages. This message type is also supported in RINEX version 3 files.

  • data.BeiDou.CNV1 — BeiDou CNAV‑1 navigation messages.

  • data.BeiDou.CNV2 — BeiDou CNAV‑2 navigation messages.

  • data.BeiDou.CNV3 — BeiDou CNAV‑3 navigation messages.

Each navigation message type may include one or more of these message categories:

  • Ephemeris navigation messages (EPH), which provide satellite orbit and clock parameters.

  • System time offset messages (STO), which provide parameters for transforming between time systems.

  • Earth orientation parameters messages (EOP), which provide corrections related to Earth rotation.

  • Ionospheric model messages (ION), which provide parameters for ionospheric delay correction.

Not all message types provide all categories. Only the categories listed below with links are available for each message type.

Detailed descriptions of each BeiDou navigation message and its corresponding output format are provided on the message‑specific reference pages:

See Also

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