Because it is translation, not rotation.
The correction is based upon the spin of Earth, being one sidereal day.Just as usual, your superficial approach to science becomes painfully apparent.
Further proofs that the Sagnac effect applies to uniform/linear/translational motion.
The other question one might ask is at what level curvature is important--if it is circular motion which causes the Sagnac effect as Ashby claims, how much does the path have to deviate from a straight line to cause the effect? At Los Angeles the earth rotates about 27 meters during the nominal 70 millisecond transit time of the signal from satellite to receiver. The deviation of the 27 meter movement from the straight line chord distance is only 35 microns at its largest point. It certainly seems incredible that a 35 micron deviation from a straight line could induce a 27 meter change in the measured range.
As a final proof that it is movement of the receiver which is significant--not whether that movement is in a curved or straight line path--a test was run using the highly precise differential carrier phase solution. The reference site was stationary on the earth and assumed to properly apply the Sagnac effect. However, at the remote site the antenna was moved up and down 32 centimeters (at Los Angeles) over an eight second interval. The result of the height movement was that the remote receiver followed a straight line path with respect to the center of the earth.
The Sagnac effect was still applied at the remote receiver. The result was solved for position that simply moved up and down in height the 32 centimeters with rms residuals
which were unchanged (i.e. a few millimeters). If a straight line path did not need the Sagnac adjustment to the ranges the rms residuals should have increased to multiple meters. This shows again that it is any motion--not just circular motion which causes the Sagnac effect.
http://web.stcloudstate.edu/ruwang/ION58PROCEEDINGS.pdf(Conducting a Crucial Experiment of the Constancy of the Speed of Light Using GPS, R. Wang/R. Hatch)
In the Sagnac experiment, an ether wind must exist due to its propagation above the flat surface of the Earth which leads to the observed time difference.
"Sagnac detected the first-order effect of a man-made ether wind by using light following
a closed path in a rotating apparatus. In relation to his equipment, light traveled at
different speeds in two opposite directions."
In light of these results, mainstream science has resorted to modifying the speed of light
using two approaches: the Modified Lorentz Ether Theory and Non Time Orthogonal Analysis. However, both of these hypotheses are based either on the Lorentz transformation or on the Minkowski metric/spacetime, and as such are totally in error.
The Sagnac effect demonstrates that electromagnetic beams traveling in opposite directions will not travel at the same speed.
"So what is making one of the light beams travel slower? Sagnac said it was due to the ether impeding its velocity - a resistance that is easily generated by rotating the table. So predictable and precise are these results that the “Sagnac effect,” as it is commonly called, is used routinely in today’s technology for the purpose of sensing rotation, as well as in mechanical gyroscopes."
http://qem.ee.nthu.edu.tw/f1b.pdfThis is an IOP article.
The author recognizes the earth's orbital Sagnac is missing whereas the earth's rotational Sagnac is not.
He uses GPS and a link between Japan and the US to prove this.
In GPS the actual magnitude of the Sagnac correction
due to earth’s rotation depends on the positions of
satellites and receiver and a typical value is 30 m, as the
propagation time is about 0.1s and the linear speed due
to earth’s rotation is about 464 m/s at the equator. The
GPS provides an accuracy of about 10 m or better in positioning.
Thus the precision of GPS will be degraded significantly,
if the Sagnac correction due to earth’s rotation
is not taken into account. On the other hand, the orbital
motion of the earth around the sun has a linear speed of
about 30 km/s which is about 100 times that of earth’s
rotation. Thus the present high-precision GPS would be
entirely impossible if the omitted correction due to orbital
motion is really necessary.
In an intercontinental microwave link between Japan and
the USA via a geostationary satellite as relay, the influence
of earth’s rotation is also demonstrated in a high-precision
time comparison between the atomic clocks at two remote
ground stations.
In this transpacific-link experiment, a synchronization
error of as large as about 0.3 µs was observed unexpectedly.
Meanwhile, as in GPS, no effects of earth’s orbital motion
are reported in these links, although they would be
easier to observe if they are in existence. Thereby, it is evident
that the wave propagation in GPS or the intercontinental
microwave link depends on the earth’s rotation, but
is entirely independent of earth’s orbital motion around
the sun or whatever. As a consequence, the propagation
mechanism in GPS or intercontinental link can be viewed
as classical in conjunction with an ECI frame, rather than
the ECEF or any other frame, being selected as the unique
propagation frame. In other words, the wave in GPS or the
intercontinental microwave link can be viewed as propagating
via a classical medium stationary in a geocentric
inertial frame.
http://www.anti-relativity.com/forum/viewtopic.php?p=39644&sid=380ab2ccf12f0e84dc604ec3feeed59e#p39644http://www.anti-relativity.com/forum/viewtopic.php?p=37771#p37771OFFICIAL GPS DATA, provided by NASA/JPL.
https://web.archive.org/web/20130218082359/http://tycho.usno.navy.mil/ptti/ptti2006/paper28.pdf"The term “Sagnac effect” is part of the vocabulary of only the observer in the rotating reference frame. The corresponding correction applied by the inertial observer might be called a “velocity correction.” While the interpretation of the correction is different in the two frames, the numerical value is the same in either frame."
Calculations performed at the NASA Goddard Space Flight Center.
https://arxiv.org/vc/arxiv/papers/0912/0912.3934v1.pdfPlease note the theoretical orbital sagnac shows up in these calculations, but is not picked up/registered/recorded by GPS satellites.
Yes, including on things like Satellites.
So a clock slowing effect would be observed.BUT IT IS NOT BEING OBSERVED, DON'T YOU UNDERSTAND?
Many people believe that GR accounts for all the observed
effects caused by gravitational fields. However, in
reality GR is unable to explain an increasing number of
clear observational facts, several of them discovered recently
with the help of the GPS. For instance, GR
predicts the gravitational time dilation and the slowing of
the rate of clocks by the gravitational potential of Earth,
of the Sun, of the galaxy etc. Due to the gravitational
time dilation of the solar gravitational potential, clocks in
the GPS satellites having their orbital plane nearly parallel
to the Earth-Sun axis should undergo a 12 hour period
harmonic variation in their rate so that the difference
between the delay accumulated along the half of the orbit
closest to the Sun amounts up to about 24 ns in the time
display, which would be recovered along the half of the
orbit farthest from the Sun. Such an oscillation exceeds
the resolution of the measurements by more than two
orders of magnitude and, if present, would be very easily
observed.
Nevertheless, contradicting the predictions of
GR, no sign of such oscillation is observed. This is the
well known and so long unsolved non-midnight problem.
In fact observations show that the rate of the
atomic clocks on Earth and in the 24 GPS satellites
is
ruled by only and exclusively the Earth’s gravitational
field and that effects of the solar gravitational potential
are completely absent. Surprisingly and happily the GPS
works better than expected from the TR.
Obviously the gravitational
slowing of the atomic clocks on Earth cannot be due to
relative velocity because these clocks rest with respect to
the laboratory observer. What is immediately disturbing
here is that two completely distinct physical causes produce
identical effects, which by it alone is highly suspicious.
GR gives only a geometrical interpretation to the
gravitational time dilation.
However, if motions cause
time dilation, why then does the orbital motion of Earth
suppress the time dilation caused by the solar gravitational
potential on the earthbased and GPS clocks? Absurdly
in one case motion causes time dilation and in the
other case it suppresses it. This contradiction lets evident
that what causes the gravitational time dilation is not the
gravitational potential and that moreover this time dilation
cannot be caused by a scalar quantity. If the time dilation
shown by the atomic clocks within the earthbased
laboratories is not due to the gravitational potential and
cannot be due to relative velocity too then it is necessarily
due to some other cause. This impasse once more
puts in check the central idea of the TR, according to
which the relative velocity with respect to the observer is
the physical parameter that rules the effects of motions.
The above facts show that the parameter that rules the
effects of motions is not relative velocity but a velocity
of a more fundamental nature.
On the other hand, the time dilation effect of the solar
gravitational field on the atomic clocks orbiting with
Earth round the Sun, which is predicted by GR but not
observed, is a highly precise observation. It exceeds by
orders of magnitude the experimental precision and
hence is infinitely more reliable. If the orbital motion of
Earth round the Sun suppresses the time dilation due to
the solar gravitational field and moreover does not show
the predicted relativistic time dilation due to this orbital
motion, then it seems reasonable that a clock in a satellite
orbiting round the Earth in a direct equatorial orbit or in a
jet flying round the Earth too should give no evidence of
such a relativistic time dilation. The relativistic time dilation
alleged in both these round the world Sagnac experiments
is in clear and frontal contradiction with the
absence of such a relativistic time dilation effect in the
case of the orbiting Earth round the Sun.
Analysis of the spinning Mossbauer experiments is a natural step toward analysis of the
slightly more complex and much larger-scale Global Positioning System (GPS). This
system constitutes a large scale near-equivalent to the spinning Mossbauer experiments.
The transit time between the satellite and ground-based receivers is routinely measured.
In addition, the atomic clocks on the satellite are carefully monitored; and high precision
corrections are provided as part of the information transmitted from the satellites.
Because the satellites and the receivers rotate at different rates (unlike the Mossbauer
experiments), a correction for the motion of the receiver during the transit time is
required. This correction is generally referred to as a Sagnac correction, since it adjusts
for anisotropy of the speed of light as far as the receiver is concerned. Why is there no
requirement for a Sagnac correction due to the earth’s orbital motion? Like the transit
time in the spinning Mossbauer experiments, any such effect would be completely
canceled by the orbital-velocity effect on the satellite clocks.
Specifically, there is substantial independent experimental evidence that clock speed always affects the clock frequency and, as the GPS system shows, the spin velocity of the earth clearly affects the clock rate. This being the case, the null result of the rotating Mössbauer experiments actually implies that an ether drift must exist or else the clock effect would not be canceled and a null result would not be present.
A GPS satellite orbiting the Earth, while at the same time the entire system is orbiting the Sun, IS A LARGE SCALE SPINNING MOSSBAUER EXPERIMENT.
Given the very fact that these GPS satellites DO NOT record the orbital Sagnac effect, means that THE HYPOTHESES OF THE RUDERFER EXPERIMENT ARE FULFILLED.
Why is there no requirement for a Sagnac correction due to the earth’s orbital motion? Like the transit time in the spinning Mossbauer experiments, any such effect would be completely canceled by the orbital-velocity effect on the satellite clocks.
However, indirectly, the counteracting effects of the transit time and clock slowing induced biases indicate that an ether drift is present. This is because there is independent evidence that clocks are slowed as a result of their speed. Thus, ether drift must exist or else the clock slowing effect would be observed.
In fact, there is other evidence that the wave-front bending and absence of the
Sagnac effect in the earth-centered frame is due to the clock-biasing effects of velocity
and that an ether drift velocity actually exists in the earth-centered frame. First, the
gradient of the solar gravitational effects upon clocks on the surface of the earth is such
that the clocks will speed up and slow down in precisely the correct way to retain the
appropriate up-wind and down-wind clock biases. Thus, the clocks must be biased or
else the solar gravitational effects would become apparent.
I already told you that your messages are not meant to swell the RE ranks.