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Old November 7th 18, 05:05 PM posted to sci.astro.amateur
Gerald Kelleher
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Default Geostationary satellites

The same surface rotation responsible for the variations in the natural noon cycle and isolated as the Polar day/night cycle (parallel to the orbital plane), is registered by geostationary satellites as a daily drift.

Nobody should waste the information where the Equation of Time correction which creates the average 24 hour day and consequently the Lat/Long framework combines with human engineering where a satellite hanging over the same longitude meridian also registers the same surface rotation.

The constant rate of daily rotation is based on the average 24 hour day as 'average' and 'constant' can be interchangeable in timekeeping and dynamical circumstances.