"Traveler at 1 revolution per zenith."
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"Traveler approaching zenith."
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"Traveler entering zenith."
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"Traveler intensity at zenith."
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"Traveler exiting zenith."
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"Traveler declining 1 revolution per zenith."
Tower Public Announcement

Additional Notes & Thoughts

In astronomy, the zenith is the point at which something appears directly overhead relative to an object or observer.

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