PCV are wrongly loaded from antex file

[plutonheaven]

I noticed that the PCV obtained by adding an ANTEX file are badly shaped. The PCV matrix is filled column-wise instead of row-wise.

Here is my investigation:

gnav = gt.Gnav(path_nav);
gnav.readSP3(path_sp3);
gnav.readSatPCV(path_atx,gt.Gtime([2023, 1, 1, 0, 0, 0]).ep);

After doing this, I obtain the following pco matrix for E02: gnav.pcv(61).off

    0.1213   -0.0092         0
   -0.0091    0.7729         0
    0.8818         0         0
         0         0         0
         0         0         0
         0         0         0
    0.1227         0         0

I would expect this, which would also be coherent with the content of the ATX file.

    0.1213   -0.0091    0.8818
         0         0         0
    0.1227   -0.0092    0.7729
         0         0         0
         0         0         0
         0         0         0
         0         0         0

I noticed this issue while comparing SP3 satellite positions, which are also slightly offset due to the wrong PCO.

[plutonheaven]

I applied a manual correction for this:

gnav.readSatPCV(path_atx,gt.Gtime([2023, 1, 1, 0, 0, 0]).ep);
% reshape pco
for ind = 1:length(gnav.pcv)
    gnav.pcv(ind).off = reshape(gnav.pcv(ind).off,3,7)';
end

But it makes the difference between matrtklib sp3 sat pos and my solution larger. I think that the shape issue is consistent within matrtklib (other parts expects the ordering as it is now), and that correcting it creates additional issues? I will report if I find a definite answer.