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Two-Way Satellite Time and Frequency Transfer
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Two-Way Satellite Time and Frequency Transfer

Two-Way Satellite Time and Frequency Transfer is a high-precision long distance time and frequency transfer mechanism used between time bureaux to determine and distribute time and frequency standards.

TWSTFT is being evaluated as an alternative to be used by the Bureau International des Poids et Mesures in the determination of International Atomic Time (TAI), as a complement to the current standard method of simultaneous observations of GPS transmissions.

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