AQUA perturbations

The largest perturbation in the inclination is 0.0052 deg and its period is half the orbital period.
The largest perturbation in the semi-major axis is 9 km and its period is half the orbital period.
Here's the nodal precession due to the short-periodic perturbations on the osculating ascending node.
The two vertical dashed lines represent the orbital period.

The linear regression shows an average precession rate of 0.7 deg/minute or 1.008 deg/day. The epoch of the TLE is 18309.94944316 (Nov 5) and for that epoch, the Earth's angular speed around the Sun was 1.003 deg/day (result obtained from the JPL's DE430 ephemerides), hence the satellite is almost exactly in a Sun-synchronous orbit (please, see here for the details, select "AQUA" and here).
Like the previous graph, also this graph shows the short-periodic perturbations, but this graph is for the inclination.