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But the satellite clocks are indeed adjusted to account for time dilation.
Some sources say the Earth is flat. But your source does not say that the Sagnac effect explains the offset. I'll let you read it. As you should before posting. But what's the point of doing that? Right?
Some sources tell that relativistic offsets can be explained by sagnac effect which has been confirmed in earth based experiments.
During propagation of the signal from transmitter to receiver, the receiver most likely moves. Even if the receiver is at rest on earth’s surface, earth rotation will carry the receiver into a different position while the signal propagates to the receiver.
One of the most confusing relativistic effects-the Sagnac effect-appears in rotating reference frames.? (See PHYSICS TODAY, October 1981, page 20.) The Sagnac effect is the basis of the ring-laser gyroscopes now commonly used in aircraft navigation. In the GPS, the Sagnac effect can produce discrepancies amounting to hundreds of nanoseconds.
If the GPS orbits were perfectly circular, the corrections would include just a few constant contributions: for the gravitational
potential differences between the satellites and the ground, and for the second-order Doppler differences between the orbiting clocks and the reference clocks on the ground. Figure 4 shows how the relativistic frequency shift depends on the circular orbit's radius. At a radius of 9550 kIn, about 3000 km above the ground, the gravitational and Doppler effects cancel. Because the GPS orbits are higher than that, the gravitational blueshift is the largest contribution. So the net frequency correction for a GPS satellite is negative, amounting to 4.4645 parts per ten billion. Nowadays the rate of every orbiting GPS clock is adjusted by this "factory offset" before launch.
I said time dilation, not dilution. But my goodness you like to cherry pick. Your very own source:
So factory offset is carried out for gravitational blueshift and dopler effects not time dilution as you suggested.
Relativistic coordinate time is deeply embedded in the GPS. Millions of receivers have software that applies relativistic corrections. Orbiting GPS clocks have been modified to more closely realize coordinate time. Ordinary users of the GPS, though they may not need to be aware of it, have thus become dependent on Einstein's conception of space and time.
No. That is the reverse of the facts. The rate at which the clocks run is the only thing that matters. The receiver clock does not need to be synchronized to the same time of day as the satellite (though that is handy). The point that the writer misses is that the time delay is calculated relative to the other satellites, not the receiver. It doesn't really matter much if the clock is "right", what matters is the rate at which it runs. And without the adjustments to the satellite clock, they would be running at different rates. That synchronization occurs on the satellite before the satellite is launched.
So it doesn't matter if all satellite clocks run slow or fast only that their clocks are synchronized.
I said time dilation, not dilution
The point that the writer misses is that the time delay is calculated relative to the other satellites, not the receiver.
Your other sources explain that, too bad you didn't read them.
Which satellite? When the receiver gets a time value from a satellite, that value is subject to the travel time of the signal.
GPS receivers synchronize its quartz clock to the time it receives from GPS satellites.
Not relevant. While that allows for more satellites to be tracked at once, it does not change the methodology.
If you had done so, you might have realized that receivers might have been advanced with the faster processors over the years.